Merge branch 'main' into ai

Reviewed-on: #24

core/ai/agents/base/ai_base.gd

@@ -2,6 +2,7 @@ extends CharacterBody3D
 
 class_name AIBase
 
+@export_group("Settings")
 @export var speed: float = 4.0
 var _enable_state_machine: bool = true
 @export var enable_state_machine: bool: 
@@ -10,13 +11,19 @@ var _enable_state_machine: bool = true
 		toggle_enable_state_machine()
 	get:
 		return _enable_state_machine
+@export var anim_player: AnimationPlayer
 
+@export_group("Entities")
+enum EntityType { HUMANOID, ANIMAL }
+@export var entity_type: EntityType = EntityType.HUMANOID
+@export var entity_name: String = ""
+@export var allowed_biomes: Array[String] = []
+@export_range(0.0, 100.0, 0.1) var spawn_uniqueness: float = 1.0
 
 @onready var patrol_radius_shape: CollisionShape3D = $%PatrolRadiusShape
 @onready var nav_agent: NavigationAgent3D = $%NavigationAgent3D
 @onready var state_machine: StateMachine = $%StateMachine
 
-
 func _ready() -> void:
 	randomize()
 	toggle_enable_state_machine()
@@ -41,6 +48,11 @@ func _physics_process(delta: float) -> void:
 	velocity.x = direction.x * speed
 	velocity.z = direction.z * speed
 	
+	if velocity.length_squared() > 0.1:
+		var look_dir = Vector3(velocity.x, 0, velocity.z)
+		var target_transform = global_transform.looking_at(global_position - look_dir, Vector3.UP)
+		global_transform = global_transform.interpolate_with(target_transform, delta * 10.0)
+	 
 	move_and_slide()
 
 func navigate_to_random_point() -> void:

core/ai/agents/base/ai_base.tscn

@@ -2,40 +2,20 @@
 
 [ext_resource type="Script" uid="uid://b30p1yqojbbbk" path="res://core/ai/agents/base/ai_base.gd" id="1_4d1nn"]
 [ext_resource type="Script" uid="uid://ps3vlu2qvmop" path="res://core/ai/framework/state_machine.gd" id="2_q1hg3"]
-[ext_resource type="Script" uid="uid://nga8qx56iwgu" path="res://core/ai/agents/base/idle_state.gd" id="3_26faq"]
-[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/agents/base/patrol_state.gd" id="4_lim44"]
-
-[sub_resource type="CapsuleMesh" id="CapsuleMesh_mh3lg"]
-
-[sub_resource type="CapsuleShape3D" id="CapsuleShape3D_mh3lg"]
 
 [sub_resource type="SphereShape3D" id="SphereShape3D_lim44"]
 radius = 20.0
 
 [node name="AiBase" type="CharacterBody3D" unique_id=1228675528]
 script = ExtResource("1_4d1nn")
-
-[node name="MeshInstance3D" type="MeshInstance3D" parent="." unique_id=214482161]
-mesh = SubResource("CapsuleMesh_mh3lg")
-
-[node name="CollisionShape3D" type="CollisionShape3D" parent="." unique_id=92811823]
-shape = SubResource("CapsuleShape3D_mh3lg")
+entity_name = "Humanoid"
 
 [node name="NavigationAgent3D" type="NavigationAgent3D" parent="." unique_id=1370024449]
 unique_name_in_owner = true
 
-[node name="StateMachine" type="Node" parent="." unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+[node name="StateMachine" type="Node" parent="." unique_id=1286404264]
 unique_name_in_owner = true
 script = ExtResource("2_q1hg3")
-initial_state = NodePath("IdleState")
-
-[node name="IdleState" type="Node" parent="StateMachine" unique_id=763668255]
-script = ExtResource("3_26faq")
-state_id = &"idle"
-
-[node name="PatrolState" type="Node" parent="StateMachine" unique_id=2054606629]
-script = ExtResource("4_lim44")
-state_id = &"patrol"
 
 [node name="PatrolRadiusShape" type="CollisionShape3D" parent="." unique_id=1379515938]
 unique_name_in_owner = true

core/ai/agents/base/idle_state.gd

@@ -1,26 +0,0 @@
-extends State
-
-const PATROL_STATE_ID: StringName = &"patrol"
-
-@export var wait_time: float = 3.0
-
-var runtime_timer: Timer
-
-func enter() -> void:
-	runtime_timer = Timer.new()
-	runtime_timer.name = "IdleTimer"
-	add_child(runtime_timer)
-	runtime_timer.one_shot = true
-	runtime_timer.timeout.connect(_on_timer_timeout)
-	runtime_timer.start(wait_time)
-
-func exit() -> void:
-	if runtime_timer:
-		if runtime_timer.is_connected("timeout", _on_timer_timeout):
-			runtime_timer.timeout.disconnect(_on_timer_timeout)
-		
-		runtime_timer.queue_free()
-		runtime_timer = null
-
-func _on_timer_timeout() -> void:
-	transitioned.emit(self, PATROL_STATE_ID)

core/ai/agents/base/idle_state.gd.uid

@@ -1 +0,0 @@
-uid://nga8qx56iwgu

core/ai/agents/cow/ai_cow.tscn

@@ -0,0 +1,30 @@
+[gd_scene format=3 uid="uid://dd8wn62anbts8"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_p2hpa"]
+[ext_resource type="PackedScene" uid="uid://bjp8wbrtfl4v2" path="res://core/ai/agents/cow/cow_mannequin.tscn" id="2_6gadt"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="2_vlvvc"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_su7en"]
+
+[node name="AiCow" unique_id=1228675528 node_paths=PackedStringArray("anim_player") instance=ExtResource("1_p2hpa")]
+anim_player = NodePath("CowMannequin/AnimationPlayer")
+
+[node name="StateMachine" parent="." index="1" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("IdleState")
+
+[node name="IdleState" type="Node" parent="StateMachine" index="0" unique_id=2033863310]
+script = ExtResource("2_vlvvc")
+state_id = &"idle"
+next_state_id = &"patrol"
+animation_name = "custom/idle"
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="1" unique_id=2076820654]
+script = ExtResource("3_su7en")
+state_id = &"patrol"
+next_state_id = &"idle"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[node name="CowMannequin" parent="." index="3" unique_id=1390675137 instance=ExtResource("2_6gadt")]
+transform = Transform3D(0.25, 0, 0, 0, 0.25, 0, 0, 0, 0.25, 0, -0.9, 0)
+
+[editable path="CowMannequin"]

core/ai/agents/cow/cow_mannequin.tscn

@@ -0,0 +1,81 @@
+[gd_scene format=3 uid="uid://bjp8wbrtfl4v2"]
+
+[ext_resource type="PackedScene" uid="uid://b7d57tyxi41r1" path="res://core/ai/agents/cow/cow.fbx" id="1_60f5q"]
+[ext_resource type="Animation" uid="uid://bsuoywknbbnm0" path="res://core/ai/agents/cow/idle.res" id="2_5ukcj"]
+[ext_resource type="Animation" uid="uid://ckmybsnuf4stp" path="res://core/ai/agents/cow/walking.res" id="3_0mu5m"]
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_lowte"]
+_data = {
+&"idle": ExtResource("2_5ukcj"),
+&"walking": ExtResource("3_0mu5m")
+}
+
+[node name="CowMannequin" unique_id=786985233 instance=ExtResource("1_60f5q")]
+
+[node name="Skeleton3D" parent="Armature" parent_id_path=PackedInt32Array(792301245) index="0" unique_id=1950086664]
+bones/1/rotation = Quaternion(0.7071068, -6.209646e-07, -6.209645e-07, 0.7071067)
+bones/1/scale = Vector3(1, 1, 1)
+bones/4/rotation = Quaternion(0.0015316998, -0.0015319793, 0.70710516, 0.70710516)
+bones/5/position = Vector3(1.3183898e-16, 0.006025583, -6.675722e-10)
+bones/5/rotation = Quaternion(0.703962, -0.69745475, -0.08083715, 0.10705068)
+bones/5/scale = Vector3(1, 0.99999976, 1)
+bones/6/position = Vector3(-1.403955e-10, 0.009248152, 3.7406075e-11)
+bones/6/rotation = Quaternion(0.18324056, -0.018661192, 0.0034790868, 0.98288476)
+bones/6/scale = Vector3(1, 1, 1)
+bones/8/scale = Vector3(0.99999994, 0.99999994, 1)
+bones/9/position = Vector3(-3.8163916e-17, 0.0046958304, 1.907358e-10)
+bones/9/rotation = Quaternion(0.6754388, -0.68119305, 0.18401879, -0.21423234)
+bones/9/scale = Vector3(1, 0.99999994, 1.0000001)
+bones/10/position = Vector3(7.2902e-10, 0.011755081, -3.0995417e-10)
+bones/10/rotation = Quaternion(-0.35146433, 0.018116632, 0.0068026204, 0.9360013)
+bones/10/scale = Vector3(0.9999999, 1, 1.0000001)
+bones/12/rotation = Quaternion(0.707105, 0.70710486, 0.0016303749, -0.0016306548)
+bones/12/scale = Vector3(1, 1, 1)
+bones/13/position = Vector3(-1.5265567e-16, 0.0060255853, 6.6757205e-10)
+bones/13/rotation = Quaternion(-0.057434652, -0.13032891, 0.70625645, 0.69348216)
+bones/13/scale = Vector3(0.99999994, 1, 0.9999999)
+bones/14/position = Vector3(-4.5945833e-10, 0.009248151, -5.7053273e-09)
+bones/14/rotation = Quaternion(0.18302466, 0.051401887, -0.0095829815, 0.9817169)
+bones/14/scale = Vector3(1, 1.0000001, 0.99999994)
+bones/16/rotation = Quaternion(0.7071062, 0.7071063, 0.0008663558, -0.0008670737)
+bones/16/scale = Vector3(1, 1, 1)
+bones/17/position = Vector3(1.7347235e-17, 0.0046958304, -1.9073432e-10)
+bones/17/rotation = Quaternion(0.1907959, 0.2076444, 0.67355627, 0.6832297)
+bones/17/scale = Vector3(1, 1, 1.0000001)
+bones/18/position = Vector3(1.834215e-10, 0.011755081, -1.7500804e-09)
+bones/18/rotation = Quaternion(-0.35151497, -0.0088962475, -0.003340601, 0.93613404)
+bones/18/scale = Vector3(1, 1.0000001, 0.99999994)
+bones/20/rotation = Quaternion(0.60080343, -0.03016121, 0.03526711, 0.7980488)
+bones/21/position = Vector3(0.00011168665, 0.0039693406, -0.013754063)
+bones/21/rotation = Quaternion(0.98885596, 3.1474094e-08, 2.23642e-07, -0.14887528)
+bones/21/scale = Vector3(1, 1.0000001, 1.0000001)
+bones/22/position = Vector3(-2.5714557e-11, 0.00836347, -9.433328e-09)
+bones/22/rotation = Quaternion(-0.6231534, 9.0575064e-08, -7.589477e-08, 0.78209966)
+bones/22/scale = Vector3(1, 0.9999999, 0.99999994)
+bones/23/position = Vector3(-2.1545942e-12, 0.0072733457, -2.594807e-09)
+bones/23/rotation = Quaternion(-1.8223004e-08, 0.98608583, -0.16623694, 2.7314604e-07)
+bones/23/scale = Vector3(1, 0.9999997, 0.9999997)
+bones/24/position = Vector3(3.3663968e-13, 0.006993335, -2.8376712e-09)
+bones/24/rotation = Quaternion(-0.048028953, 2.6759114e-08, 4.5447155e-08, 0.998846)
+bones/24/scale = Vector3(1, 0.99999994, 1.0000001)
+bones/26/rotation = Quaternion(0.0054439656, 0.86556005, 0.50029516, -0.021930087)
+bones/26/scale = Vector3(1, 1.0000002, 1)
+bones/27/position = Vector3(1.8971762e-10, 0.013189232, -5.7312505e-10)
+bones/27/rotation = Quaternion(0.15129425, -0.018451845, -0.013046658, 0.9882304)
+bones/27/scale = Vector3(0.99999994, 0.99999994, 1.0000001)
+bones/28/position = Vector3(-2.1601461e-10, 0.013573305, 4.8459786e-10)
+bones/28/rotation = Quaternion(-0.6245376, -0.19781438, 0.16660775, 0.7369289)
+bones/28/scale = Vector3(1, 0.9999999, 1.0000001)
+bones/30/rotation = Quaternion(3.5765906e-06, 0.67050743, 0.7419029, 3.2289404e-06)
+bones/31/position = Vector3(-1.2499713e-14, 0.01925819, -1.2902629e-09)
+bones/31/rotation = Quaternion(0.086390205, 0.0012038474, -0.013495129, 0.99616927)
+bones/31/scale = Vector3(0.9999999, 0.99999994, 1)
+bones/33/rotation = Quaternion(0.7071068, -6.209646e-07, -6.209645e-07, 0.7071067)
+bones/33/scale = Vector3(1, 1, 1)
+bones/35/rotation = Quaternion(0.7071068, -9.581396e-07, -9.581394e-07, 0.7071067)
+bones/35/scale = Vector3(1, 1, 1)
+bones/37/rotation = Quaternion(0.7071068, -9.581396e-07, -9.581394e-07, 0.7071067)
+bones/37/scale = Vector3(1, 1, 1)
+
+[node name="AnimationPlayer" parent="." index="1" unique_id=1401028430]
+libraries/custom = SubResource("AnimationLibrary_lowte")

core/ai/agents/horse/ai_horse.tscn

@@ -0,0 +1,69 @@
+[gd_scene format=3 uid="uid://cayakdk7gmlyg"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_e5v3h"]
+[ext_resource type="PackedScene" uid="uid://dqhueybnlrrqx" path="res://core/ai/agents/horse/horse_mannequin.tscn" id="2_4t6jw"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="2_or6xs"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_n63jb"]
+[ext_resource type="Animation" uid="uid://doyi6etqvy4n2" path="res://core/ai/agents/horse/idle.res" id="3_qe4rt"]
+[ext_resource type="Animation" uid="uid://hotr7r3fd1sq" path="res://core/ai/agents/horse/walking.res" id="4_q8m0v"]
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_or6xs"]
+_data = {
+&"idle": ExtResource("3_qe4rt"),
+&"walking": ExtResource("4_q8m0v")
+}
+
+[node name="AiHorse" unique_id=1228675528 node_paths=PackedStringArray("anim_player") instance=ExtResource("1_e5v3h")]
+anim_player = NodePath("HorseMannequin/AnimationPlayer")
+
+[node name="StateMachine" parent="." index="1" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("IdleState")
+
+[node name="IdleState" type="Node" parent="StateMachine" index="0" unique_id=734754793]
+script = ExtResource("2_or6xs")
+state_id = &"idle"
+next_state_id = &"patrol"
+animation_name = "custom/idle"
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="1" unique_id=1748382252]
+script = ExtResource("3_n63jb")
+state_id = &"patrol"
+next_state_id = &"idle"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[node name="HorseMannequin" parent="." index="3" unique_id=1289880358 instance=ExtResource("2_4t6jw")]
+transform = Transform3D(0.2, 0, 0, 0, 0.2, 0, 0, 0, 0.2, 0, -0.9, 0)
+
+[node name="Skeleton3D" parent="HorseMannequin/Armature" parent_id_path=PackedInt32Array(1289880358, 245823720) index="0" unique_id=494955820]
+bones/1/rotation = Quaternion(0.7071068, -6.209646e-07, -6.209645e-07, 0.7071067)
+bones/4/rotation = Quaternion(0.0012952884, -0.0012955684, 0.7071056, 0.7071057)
+bones/5/rotation = Quaternion(0.70685357, -0.70227593, -0.04508998, 0.07164877)
+bones/6/rotation = Quaternion(0.13314606, -0.018813655, 0.0025279524, 0.9909147)
+bones/8/rotation = Quaternion(0.00078355736, -0.00078427553, 0.70710635, 0.70710635)
+bones/9/rotation = Quaternion(0.6711558, -0.6744515, 0.20213859, -0.23195927)
+bones/10/rotation = Quaternion(-0.3574636, 0.018072592, 0.006918765, 0.9337266)
+bones/12/rotation = Quaternion(0.7071054, 0.7071055, 0.0013743625, -0.0013746425)
+bones/13/rotation = Quaternion(-0.02159133, -0.09508795, 0.70796114, 0.69948786)
+bones/14/rotation = Quaternion(0.13298893, 0.051821847, -0.0069631753, 0.9897374)
+bones/16/rotation = Quaternion(0.7071064, 0.70710653, 0.00066260004, -0.00066331815)
+bones/17/rotation = Quaternion(0.20885532, 0.22542001, 0.6690968, 0.6766645)
+bones/18/rotation = Quaternion(-0.3575147, -0.008874607, -0.003397635, 0.9338592)
+bones/20/rotation = Quaternion(0.6010642, -0.021428203, 0.02848876, 0.79840535)
+bones/21/rotation = Quaternion(0.99267024, 2.482745e-08, 2.2239277e-07, -0.12085533)
+bones/22/rotation = Quaternion(-0.6165577, 9.507701e-08, -7.2693986e-08, 0.7873097)
+bones/23/rotation = Quaternion(-1.5614631e-08, 0.9891947, -0.14660779, 2.7153942e-07)
+bones/24/rotation = Quaternion(0.03904001, 3.5621138e-08, 1.47960275e-08, 0.99923766)
+bones/26/rotation = Quaternion(0.008421451, 0.95973384, 0.27944198, -0.027427308)
+bones/27/rotation = Quaternion(-0.08868468, -0.022488868, -0.01781765, 0.9956465)
+bones/28/rotation = Quaternion(-0.62453747, -0.1978144, 0.1666077, 0.736929)
+bones/30/rotation = Quaternion(3.4527793e-06, 0.6944211, 0.71956885, 3.3297817e-06)
+bones/31/rotation = Quaternion(0.053752482, 0.0007617086, -0.013526975, 0.9984624)
+bones/33/rotation = Quaternion(0.7071068, -6.209646e-07, -6.209645e-07, 0.7071067)
+bones/35/rotation = Quaternion(0.7071068, -9.581396e-07, -9.581394e-07, 0.7071067)
+bones/37/rotation = Quaternion(0.7071068, -9.581396e-07, -9.581394e-07, 0.7071067)
+
+[node name="AnimationPlayer" parent="HorseMannequin" index="1" unique_id=272680130]
+libraries/custom = SubResource("AnimationLibrary_or6xs")
+
+[editable path="HorseMannequin"]

core/ai/agents/horse/horse_mannequin.tscn

@@ -0,0 +1,5 @@
+[gd_scene format=3 uid="uid://dqhueybnlrrqx"]
+
+[ext_resource type="PackedScene" uid="uid://be1ql8okme4n7" path="res://core/ai/agents/horse/horse.fbx" id="1_fbqil"]
+
+[node name="HorseMannequin" unique_id=1289880358 instance=ExtResource("1_fbqil")]

core/ai/agents/human/ai_citizen.tscn

@@ -0,0 +1,10 @@
+[gd_scene format=3 uid="uid://bdqeshcwwnyc4"]
+
+[ext_resource type="PackedScene" uid="uid://mvh2v6v72stt" path="res://core/ai/agents/human/ai_human.tscn" id="1_awhwq"]
+
+[node name="AiCitizen" unique_id=1228675528 instance=ExtResource("1_awhwq")]
+
+[node name="StateMachine" parent="." index="3" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("")
+
+[editable path="HumanMannequin"]

core/ai/agents/human/ai_citizen_sitter.tscn

@@ -0,0 +1,53 @@
+[gd_scene format=3 uid="uid://bbseno7clbepx"]
+
+[ext_resource type="PackedScene" uid="uid://bdqeshcwwnyc4" path="res://core/ai/agents/human/ai_citizen.tscn" id="1_cduuu"]
+
+[node name="AiCitizenSitter" unique_id=1228675528 instance=ExtResource("1_cduuu")]
+
+[node name="SK_Mannequin" parent="HumanMannequin" parent_id_path=PackedInt32Array(333236377) index="0" unique_id=377304892]
+transform = Transform3D(0.99906886, 0.025971904, -0.03444738, 0.038254507, -0.16420224, 0.98568463, 0.019943757, -0.98608464, -0.1650429, 0.034450583, -0.44864154, 0.18535595)
+
+[node name="Skeleton3D" parent="HumanMannequin/SK_Mannequin" index="0" unique_id=427572412]
+bones/2/rotation = Quaternion(-0.007029906, 0.032859802, -0.23654123, 0.97104025)
+bones/3/rotation = Quaternion(-0.000884556, 0.0033522977, 0.10280211, 0.99469584)
+bones/4/rotation = Quaternion(-0.00040807336, 0.0034836144, 0.0045103733, 0.9999837)
+bones/5/rotation = Quaternion(0.13797933, 0.74176145, 0.017092831, 0.6560942)
+bones/6/rotation = Quaternion(0.049281683, 0.43982458, -0.36467218, 0.81923133)
+bones/7/rotation = Quaternion(-0.049351897, 0.03842162, -0.476375, 0.87701494)
+bones/8/rotation = Quaternion(-0.41694272, -0.05554785, -0.18030654, 0.889136)
+bones/9/rotation = Quaternion(0.094457716, 0.050416686, 0.50820345, 0.85455555)
+bones/10/rotation = Quaternion(0.011606372, 0.08610083, 0.2719557, 0.95838)
+bones/12/rotation = Quaternion(-0.00016985182, 0.0032503307, 0.42722064, 0.90414155)
+bones/13/rotation = Quaternion(-0.018024907, 0.015150134, 0.27278355, 0.9617873)
+bones/15/rotation = Quaternion(-0.13467012, -0.10029431, 0.2853874, 0.94358844)
+bones/16/rotation = Quaternion(0.010311794, -0.034373257, 0.13259757, 0.9905202)
+bones/18/rotation = Quaternion(-0.09865642, -0.08747626, 0.37470394, 0.917721)
+bones/19/rotation = Quaternion(0.0042531197, -0.033760007, 0.1860149, 0.98195755)
+bones/21/rotation = Quaternion(0.70078146, 0.36200625, -0.001720201, 0.61469823)
+bones/22/rotation = Quaternion(-0.001820262, 0.12128391, 0.22490783, 0.9668006)
+bones/26/rotation = Quaternion(0.76902086, -0.13267346, -0.62528044, -0.005393706)
+bones/27/rotation = Quaternion(0.034201004, 0.38763282, -0.48749813, 0.7816117)
+bones/28/rotation = Quaternion(-0.053170834, 0.025972798, -0.32202634, 0.9448796)
+bones/29/rotation = Quaternion(-0.43919632, 0.049489442, -0.098192796, 0.89163643)
+bones/30/rotation = Quaternion(0.103668794, 0.04579189, 0.46590617, 0.8775462)
+bones/31/rotation = Quaternion(0.011519267, 0.09922818, 0.29214594, 0.95114243)
+bones/33/rotation = Quaternion(9.437185e-05, 0.009016322, 0.44048977, 0.89771235)
+bones/34/rotation = Quaternion(-0.018226523, 0.017689873, 0.23132406, 0.97254515)
+bones/36/rotation = Quaternion(-0.13272016, -0.101737194, 0.26830983, 0.9487069)
+bones/37/rotation = Quaternion(0.010193698, -0.046628788, 0.19672133, 0.97929704)
+bones/39/rotation = Quaternion(-0.110196866, -0.05036995, 0.35450295, 0.9271716)
+bones/40/rotation = Quaternion(0.0042593707, -0.028552007, 0.17841409, 0.983532)
+bones/42/rotation = Quaternion(0.7297342, 0.26573184, -0.09265223, 0.6231294)
+bones/43/rotation = Quaternion(0.06426929, 0.22943345, 0.1991351, 0.95056564)
+bones/47/rotation = Quaternion(0.00421817, -0.00037953872, -0.21590644, 0.9764049)
+bones/49/rotation = Quaternion(0.14012733, -0.038448263, 0.6819175, 0.7168505)
+bones/50/rotation = Quaternion(-0.05631607, 0.020481886, -0.74316776, 0.6664162)
+bones/52/rotation = Quaternion(-0.0004946971, -0.048858073, -0.0074254284, 0.998778)
+bones/55/rotation = Quaternion(0.0132777635, 0.10731075, 0.71409845, -0.6916441)
+bones/56/rotation = Quaternion(0.03920827, -0.09832406, -0.75485575, 0.64729285)
+bones/58/rotation = Quaternion(0.01656407, -0.06386153, 0.030505493, 0.9973549)
+
+[node name="AnimationPlayer" parent="HumanMannequin" parent_id_path=PackedInt32Array(333236377) index="1" unique_id=233699491]
+autoplay = &"custom/sit"
+
+[editable path="HumanMannequin"]

core/ai/agents/human/ai_citizen_walker.tscn

@@ -0,0 +1,25 @@
+[gd_scene format=3 uid="uid://bnnuke5e7e1yr"]
+
+[ext_resource type="PackedScene" uid="uid://bdqeshcwwnyc4" path="res://core/ai/agents/human/ai_citizen.tscn" id="1_dms8s"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="2_awhwq"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_8d0tj"]
+
+[node name="AiCitizenWalker" unique_id=1228675528 instance=ExtResource("1_dms8s")]
+
+[node name="StateMachine" parent="." index="3" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("IdleState")
+
+[node name="IdleState" type="Node" parent="StateMachine" index="0" unique_id=42226979]
+script = ExtResource("2_awhwq")
+state_id = &"idle"
+next_state_id = &"patrol"
+animation_name = "custom/idle"
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="1" unique_id=1357892786]
+script = ExtResource("3_8d0tj")
+state_id = &"patrol"
+next_state_id = &"idle"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[editable path="HumanMannequin"]

core/ai/agents/human/ai_farmer.tscn

@@ -0,0 +1,26 @@
+[gd_scene format=3 uid="uid://ceqxsqfiotm5j"]
+
+[ext_resource type="PackedScene" uid="uid://mvh2v6v72stt" path="res://core/ai/agents/human/ai_human.tscn" id="1_l2y7m"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_2oda6"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="4_2oda6"]
+
+[node name="AiFarmer" unique_id=1228675528 instance=ExtResource("1_l2y7m")]
+
+[node name="StateMachine" parent="." index="3" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("GatherState")
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="0" unique_id=930272128]
+script = ExtResource("3_2oda6")
+state_id = &"patrol"
+next_state_id = &"gather"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[node name="GatherState" type="Node" parent="StateMachine" index="1" unique_id=48091671]
+script = ExtResource("4_2oda6")
+state_id = &"gather"
+next_state_id = &"patrol"
+animation_name = "custom/gather"
+exit_on_animation_finished = true
+
+[editable path="HumanMannequin"]

core/ai/agents/human/ai_human.tscn

@@ -0,0 +1,55 @@
+[gd_scene format=3 uid="uid://mvh2v6v72stt"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_hko2w"]
+[ext_resource type="PackedScene" uid="uid://legcajdd0jsy" path="res://core/ai/agents/human/human_mannequin.tscn" id="2_cnrgi"]
+
+[node name="AiHuman" unique_id=1228675528 node_paths=PackedStringArray("anim_player") instance=ExtResource("1_hko2w")]
+anim_player = NodePath("HumanMannequin/AnimationPlayer")
+
+[node name="HumanMannequin" parent="." index="3" unique_id=333236377 instance=ExtResource("2_cnrgi")]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -0.9, 0)
+
+[node name="SK_Mannequin" parent="HumanMannequin" index="0" unique_id=2096894453]
+transform = Transform3D(0.99999994, 0, 0, 0, -4.371139e-08, 1, 0, -1, -4.371139e-08, 0, 0, 0)
+
+[node name="Skeleton3D" parent="HumanMannequin/SK_Mannequin" index="0" unique_id=1402189960]
+bones/2/rotation = Quaternion(-2.1971985e-24, 0, -0.062388558, 0.99805194)
+bones/3/rotation = Quaternion(4.135903e-25, 1.6543612e-24, 0.12241964, 0.99247843)
+bones/4/rotation = Quaternion(2.2850868e-23, 0, 0.024252614, 0.9997059)
+bones/5/rotation = Quaternion(0.20891805, 0.7294167, 0.12304399, 0.6396598)
+bones/6/rotation = Quaternion(0.11299576, 0.33062968, -0.16141911, 0.92296255)
+bones/7/rotation = Quaternion(-0.05401651, -0.079182714, -0.26340967, 0.9599103)
+bones/8/rotation = Quaternion(-0.61789525, 0.019371983, 0.010653294, 0.7859496)
+bones/9/rotation = Quaternion(0.1333045, -0.0031801206, 0.22317973, 0.96561414)
+bones/10/rotation = Quaternion(0.012043531, -0.0029058352, 0.10444825, 0.9944532)
+bones/12/rotation = Quaternion(0.028522171, -0.05687394, 0.19848494, 0.9780366)
+bones/13/rotation = Quaternion(-0.018628873, 0.007972199, 0.10711657, 0.99404)
+bones/15/rotation = Quaternion(-0.1295377, -0.18789689, 0.14421311, 0.9628693)
+bones/16/rotation = Quaternion(0.010359715, -0.010519396, 0.09774818, 0.9951017)
+bones/18/rotation = Quaternion(-0.095480494, -0.116765715, 0.18851167, 0.9704188)
+bones/19/rotation = Quaternion(0.00430111, -0.0141675975, 0.11596311, 0.9931432)
+bones/21/rotation = Quaternion(0.6303091, 0.37152508, -0.07729015, 0.6772783)
+bones/22/rotation = Quaternion(0.0026046867, 0.086798474, 0.13014112, 0.98768544)
+bones/26/rotation = Quaternion(0.7294168, -0.20891781, -0.6396598, 0.12304417)
+bones/27/rotation = Quaternion(0.11299576, 0.33062968, -0.16141911, 0.92296255)
+bones/28/rotation = Quaternion(-0.05401651, -0.079182714, -0.26340967, 0.9599103)
+bones/29/rotation = Quaternion(-0.61789525, 0.019371983, 0.010653294, 0.7859496)
+bones/30/rotation = Quaternion(0.1333045, -0.0031801206, 0.22317973, 0.96561414)
+bones/31/rotation = Quaternion(0.012043531, -0.0029058352, 0.10444825, 0.9944532)
+bones/33/rotation = Quaternion(0.028522171, -0.05687394, 0.19848494, 0.9780366)
+bones/34/rotation = Quaternion(-0.018628873, 0.007972199, 0.10711657, 0.99404)
+bones/36/rotation = Quaternion(-0.1295377, -0.18789689, 0.14421311, 0.9628693)
+bones/37/rotation = Quaternion(0.010359715, -0.010519396, 0.09774818, 0.9951017)
+bones/39/rotation = Quaternion(-0.095480494, -0.116765715, 0.18851167, 0.9704188)
+bones/40/rotation = Quaternion(0.00430111, -0.0141675975, 0.11596311, 0.9931432)
+bones/42/rotation = Quaternion(0.6303091, 0.37152508, -0.07729015, 0.6772783)
+bones/43/rotation = Quaternion(0.0026047025, 0.08679848, 0.13014114, 0.98768544)
+bones/47/rotation = Quaternion(-1.5923227e-23, 0, -0.20371072, 0.97903115)
+bones/49/rotation = Quaternion(0.07370486, -0.062138822, -0.008584324, 0.9953053)
+bones/50/rotation = Quaternion(-0.048884246, 0.018863896, -0.06552225, 0.99647444)
+bones/52/rotation = Quaternion(-0.0058857696, 0.03199128, 0.07035475, 0.9969916)
+bones/55/rotation = Quaternion(0.062138822, 0.07370486, 0.9953054, 0.008584333)
+bones/56/rotation = Quaternion(-0.048884246, 0.018863896, -0.06552225, 0.99647444)
+bones/58/rotation = Quaternion(-0.0058857696, 0.03199128, 0.07035475, 0.9969916)
+
+[editable path="HumanMannequin"]

core/ai/agents/human/human_mannequin.tscn

@@ -0,0 +1,94 @@
+[gd_scene format=3 uid="uid://legcajdd0jsy"]
+
+[ext_resource type="PackedScene" uid="uid://ys8pesrqeyv2" path="res://core/ai/agents/human/human_mannequin_mixamo.fbx" id="1_561x5"]
+[ext_resource type="Animation" uid="uid://bod5wup7tap24" path="res://core/ai/agents/human/gather.res" id="2_3r4wv"]
+[ext_resource type="Animation" uid="uid://cp4pl635iv3g7" path="res://core/ai/agents/human/idle.res" id="2_b4vfe"]
+[ext_resource type="Animation" uid="uid://ckkmrph86jlsd" path="res://core/ai/agents/human/walking.res" id="3_jl3mr"]
+[ext_resource type="Animation" uid="uid://byksuipm2bly7" path="res://core/ai/agents/human/sit.res" id="4_xaokg"]
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_3r4wv"]
+_data = {
+&"gather": ExtResource("2_3r4wv"),
+&"idle": ExtResource("2_b4vfe"),
+&"sit": ExtResource("4_xaokg"),
+&"walking": ExtResource("3_jl3mr")
+}
+
+[node name="HumanMannequin" unique_id=1583776159 instance=ExtResource("1_561x5")]
+
+[node name="SK_Mannequin" parent="." index="0" unique_id=2096894453]
+transform = Transform3D(0.9990688, 0.025971903, -0.034447376, 0.038254507, -0.16420223, 0.9856846, 0.019943757, -0.9860846, -0.16504289, 0.034450583, -0.44864154, 0.18535595)
+
+[node name="Skeleton3D" parent="SK_Mannequin" index="0" unique_id=1402189960]
+bones/2/rotation = Quaternion(-0.007029906, 0.032859802, -0.23654123, 0.97104025)
+bones/3/rotation = Quaternion(-0.000884556, 0.0033522977, 0.10280211, 0.99469584)
+bones/4/position = Vector3(0.13407329, 0.004204774, -5.584202e-15)
+bones/4/rotation = Quaternion(-0.00040807336, 0.0034836144, 0.0045103733, 0.9999837)
+bones/5/rotation = Quaternion(0.13797933, 0.74176145, 0.017092831, 0.6560942)
+bones/6/position = Vector3(0.15784872, 1.4317955e-11, 6.3591354e-11)
+bones/6/rotation = Quaternion(0.049281683, 0.43982458, -0.36467218, 0.81923133)
+bones/7/position = Vector3(0.3033993, 8.407472e-11, 3.197531e-11)
+bones/7/rotation = Quaternion(-0.049351897, 0.03842162, -0.476375, 0.87701494)
+bones/8/position = Vector3(0.26975143, 1.572964e-11, -9.6207486e-11)
+bones/8/rotation = Quaternion(-0.41694272, -0.05554785, -0.18030654, 0.889136)
+bones/9/rotation = Quaternion(0.094457716, 0.050416686, 0.50820345, 0.85455555)
+bones/10/position = Vector3(0.04287498, -2.9850333e-10, 5.048406e-11)
+bones/10/rotation = Quaternion(0.011606372, 0.08610083, 0.2719557, 0.95838)
+bones/11/position = Vector3(0.0339379, 1.1695445e-10, -2.349232e-11)
+bones/12/rotation = Quaternion(-0.00016985182, 0.0032503307, 0.42722064, 0.90414155)
+bones/13/position = Vector3(0.046403743, -3.648193e-11, 1.830866e-11)
+bones/13/rotation = Quaternion(-0.018024907, 0.015150134, 0.27278355, 0.9617873)
+bones/14/position = Vector3(0.036488436, -1.9989443e-10, 1.6076356e-11)
+bones/15/rotation = Quaternion(-0.13467012, -0.10029431, 0.2853874, 0.94358844)
+bones/16/position = Vector3(0.03570981, 1.8669866e-10, 3.9181436e-12)
+bones/16/rotation = Quaternion(0.010311794, -0.034373257, 0.13259757, 0.9905202)
+bones/17/position = Vector3(0.029856307, -3.005879e-10, -4.0375425e-11)
+bones/18/rotation = Quaternion(-0.09865642, -0.08747626, 0.37470394, 0.917721)
+bones/19/position = Vector3(0.04430177, 4.6665116e-11, -9.4033115e-12)
+bones/19/rotation = Quaternion(0.0042531197, -0.033760007, 0.1860149, 0.98195755)
+bones/20/position = Vector3(0.034766525, -1.6786372e-10, 2.768652e-11)
+bones/21/rotation = Quaternion(0.70078146, 0.36200625, -0.001720201, 0.61469823)
+bones/22/position = Vector3(0.038696717, 5.0118687e-11, 9.9849684e-11)
+bones/22/rotation = Quaternion(-0.001820262, 0.12128391, 0.22490783, 0.9668006)
+bones/23/position = Vector3(0.040621713, 1.0721979e-11, -5.127232e-12)
+bones/24/position = Vector3(0.14, 1.110223e-16, 2.220446e-16)
+bones/24/rotation = Quaternion(-2.7755576e-17, -6.938894e-17, -6.938894e-18, 1)
+bones/25/position = Vector3(0.005, -2.7755576e-17, 0)
+bones/25/rotation = Quaternion(-9.540979e-18, -2.7755576e-17, 9.540979e-18, 1)
+bones/26/rotation = Quaternion(0.76902086, -0.13267346, -0.62528044, -0.005393706)
+bones/27/rotation = Quaternion(0.034201004, 0.38763282, -0.48749813, 0.7816117)
+bones/28/rotation = Quaternion(-0.053170834, 0.025972798, -0.32202634, 0.9448796)
+bones/29/position = Vector3(-0.26975244, 2.563412e-07, -1.1905385e-08)
+bones/29/rotation = Quaternion(-0.43919632, 0.049489442, -0.098192796, 0.89163643)
+bones/30/rotation = Quaternion(0.103668794, 0.04579189, 0.46590617, 0.8775462)
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+bones/34/rotation = Quaternion(-0.018226523, 0.017689873, 0.23132406, 0.97254515)
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+bones/37/rotation = Quaternion(0.010193698, -0.046628788, 0.19672133, 0.97929704)
+bones/39/rotation = Quaternion(-0.110196866, -0.05036995, 0.35450295, 0.9271716)
+bones/40/rotation = Quaternion(0.0042593707, -0.028552007, 0.17841409, 0.983532)
+bones/42/rotation = Quaternion(0.7297342, 0.26573184, -0.09265223, 0.6231294)
+bones/43/rotation = Quaternion(0.06426929, 0.22943345, 0.1991351, 0.95056564)
+bones/45/rotation = Quaternion(-0.1176271, 1.3974802e-16, -6.288661e-17, 0.99305785)
+bones/46/rotation = Quaternion(-0.17323487, -2.099698e-25, 1.9374898e-17, 0.9848805)
+bones/47/rotation = Quaternion(0.00421817, -0.00037953872, -0.21590644, 0.9764049)
+bones/48/position = Vector3(0.092836134, 0.0036415688, 2.7747754e-17)
+bones/48/rotation = Quaternion(1.2661336e-17, 9.989056e-18, 0.13354194, 0.99104315)
+bones/49/rotation = Quaternion(0.14012733, -0.038448263, 0.6819175, 0.7168505)
+bones/50/position = Vector3(-0.42572036, 1.7074263e-12, -4.667877e-12)
+bones/50/rotation = Quaternion(-0.05631607, 0.020481886, -0.74316776, 0.6664162)
+bones/51/position = Vector3(-0.20476776, -1.3877788e-17, 0)
+bones/52/position = Vector3(-0.4019669, -3.933849e-11, 1.899425e-12)
+bones/52/rotation = Quaternion(-0.0004946971, -0.048858073, -0.0074254284, 0.998778)
+bones/54/position = Vector3(-0.22094238, 4.7704896e-18, 0)
+bones/55/rotation = Quaternion(0.0132777635, 0.10731075, 0.71409845, -0.6916441)
+bones/56/rotation = Quaternion(0.03920827, -0.09832406, -0.75485575, 0.64729285)
+bones/57/position = Vector3(0.20476907, 0, -5.551115e-17)
+bones/58/rotation = Quaternion(0.01656407, -0.06386153, 0.030505493, 0.9973549)
+bones/60/position = Vector3(0.22094241, 3.035766e-18, -2.7755576e-17)
+bones/67/position = Vector3(-4.440892e-16, 0, 7.632783e-17)
+bones/67/rotation = Quaternion(-2.8449465e-16, 8.326673e-17, 2.7755576e-17, 1)
+
+[node name="AnimationPlayer" parent="." index="1" unique_id=1304782348]
+libraries/custom = SubResource("AnimationLibrary_3r4wv")

core/ai/agents/pig/ai_pig.tscn

@@ -0,0 +1,76 @@
+[gd_scene format=3 uid="uid://c2hg6hu2y5srb"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_j8spt"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="2_acc6o"]
+[ext_resource type="PackedScene" uid="uid://b0xb7kl4rjd66" path="res://core/ai/agents/pig/pig_mannequin.tscn" id="2_qmc2e"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_3n8ak"]
+[ext_resource type="Animation" uid="uid://c4ingpw0co8v2" path="res://core/ai/agents/pig/idle.res" id="3_lvpc5"]
+[ext_resource type="Animation" uid="uid://0563r715lmw1" path="res://core/ai/agents/pig/walking.res" id="4_3f3hl"]
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_lvpc5"]
+_data = {
+&"idle": ExtResource("3_lvpc5"),
+&"walking": ExtResource("4_3f3hl")
+}
+
+[node name="AiPig" unique_id=1228675528 node_paths=PackedStringArray("anim_player") instance=ExtResource("1_j8spt")]
+anim_player = NodePath("PigMannequin/AnimationPlayer")
+
+[node name="StateMachine" parent="." index="1" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("IdleState")
+
+[node name="IdleState" type="Node" parent="StateMachine" index="0" unique_id=403305255]
+script = ExtResource("2_acc6o")
+state_id = &"idle"
+next_state_id = &"patrol"
+animation_name = "custom/idle"
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="1" unique_id=1237150984]
+script = ExtResource("3_3n8ak")
+state_id = &"patrol"
+next_state_id = &"idle"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[node name="PigMannequin" parent="." index="3" unique_id=926755470 instance=ExtResource("2_qmc2e")]
+transform = Transform3D(0.2, 0, 0, 0, 0.2, 0, 0, 0, 0.2, 0, -0.9, 0)
+
+[node name="Skeleton3D" parent="PigMannequin/Armature" parent_id_path=PackedInt32Array(926755470, 695496535) index="0" unique_id=725647261]
+bones/1/rotation = Quaternion(0.7071068, -7.052583e-07, -7.052583e-07, 0.7071067)
+bones/3/position = Vector3(5.37765e-05, 0.017809996, -0.007695386)
+bones/3/rotation = Quaternion(-0.027121998, 0, 0, 0.99963224)
+bones/4/position = Vector3(-0.004269575, -0.0009057691, 0.018837402)
+bones/4/rotation = Quaternion(-0.20850496, 0.20850474, 0.675667, 0.6756669)
+bones/5/rotation = Quaternion(0.70767504, -0.7007484, -0.04928623, 0.07562217)
+bones/6/rotation = Quaternion(0.5074964, -0.016355418, 0.009635334, 0.86144483)
+bones/8/position = Vector3(-0.004269574, 0.0008725248, -0.02819033)
+bones/8/rotation = Quaternion(-0.021000031, 0.020999499, 0.7067949, 0.7067949)
+bones/9/rotation = Quaternion(0.6762797, -0.7030302, 0.13760945, -0.17163305)
+bones/10/rotation = Quaternion(-0.76131815, 0.012544005, 0.014735432, 0.64808965)
+bones/12/position = Vector3(0.0036532492, -0.0009057691, 0.018837402)
+bones/12/rotation = Quaternion(0.67572093, 0.6757209, -0.20832984, 0.20832963)
+bones/13/rotation = Quaternion(-0.025831472, -0.099082425, 0.70891863, 0.6978179)
+bones/14/rotation = Quaternion(0.50689334, 0.045050938, -0.026540417, 0.8604216)
+bones/16/position = Vector3(0.0036521717, 0.0008013838, -0.028183708)
+bones/16/rotation = Quaternion(0.7068031, 0.7068031, -0.020723455, 0.020722982)
+bones/17/rotation = Quaternion(0.1443776, 0.16487122, 0.6747477, 0.7047611)
+bones/18/rotation = Quaternion(-0.7649948, -0.0061196624, -0.0072699804, 0.64396644)
+bones/20/position = Vector3(-0.00042349403, 0.0063493187, -0.030968314)
+bones/20/rotation = Quaternion(0.60138106, 0.012805484, 0.0019118772, 0.79885745)
+bones/22/position = Vector3(-0.0002038494, 0.0041766805, 0.0044565103)
+bones/22/rotation = Quaternion(0.0076635648, 0.7548352, 0.6556045, -0.018651871)
+bones/23/rotation = Quaternion(0.065689825, -0.010677165, -0.019551655, 0.99759144)
+bones/24/rotation = Quaternion(-0.24106143, -0.2388839, 0.03569213, 0.9399734)
+bones/26/position = Vector3(-0.00032282702, 0.010153349, -0.021613695)
+bones/26/rotation = Quaternion(3.6196245e-06, 0.6452338, 0.7639852, 3.2175833e-06)
+bones/27/rotation = Quaternion(0.0455184, 0.00040800165, -0.025042463, 0.99864954)
+bones/29/position = Vector3(-0.01117923, 0.0010000349, -0.03163386)
+bones/29/rotation = Quaternion(0.7071068, -6.178108e-07, -6.178107e-07, 0.7071067)
+bones/31/rotation = Quaternion(0.7071068, -1.0424332e-06, -1.0424329e-06, 0.7071067)
+bones/33/position = Vector3(0.010670463, 0.0010000349, -0.03166372)
+bones/33/rotation = Quaternion(0.70755845, -7.1388774e-07, -1.0355643e-06, 0.7066547)
+
+[node name="AnimationPlayer" parent="PigMannequin" index="1" unique_id=904091745]
+libraries/custom = SubResource("AnimationLibrary_lvpc5")
+
+[editable path="PigMannequin"]

core/ai/agents/pig/pig_mannequin.tscn

@@ -0,0 +1,5 @@
+[gd_scene format=3 uid="uid://b0xb7kl4rjd66"]
+
+[ext_resource type="PackedScene" uid="uid://bi5f24frndw7j" path="res://core/ai/agents/pig/pig.fbx" id="1_ptg6h"]
+
+[node name="PigMannequin" unique_id=926755470 instance=ExtResource("1_ptg6h")]

core/ai/agents/pug/ai_pug.tscn

@@ -0,0 +1,55 @@
+[gd_scene format=3 uid="uid://2md4l83fy8kr"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_0bu1i"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="2_iapui"]
+[ext_resource type="PackedScene" uid="uid://c16j3umhplew4" path="res://core/ai/agents/pug/pug_mannequin.tscn" id="2_n0mit"]
+[ext_resource type="Animation" uid="uid://c8hy2tftqb7su" path="res://core/ai/agents/pug/idle.res" id="3_hv1px"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_xc1yq"]
+[ext_resource type="Animation" uid="uid://bqrhidcnublea" path="res://core/ai/agents/pug/walking.res" id="4_cjq2y"]
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_iapui"]
+_data = {
+&"idle": ExtResource("3_hv1px"),
+&"walking": ExtResource("4_cjq2y")
+}
+
+[node name="AiPug" unique_id=1228675528 node_paths=PackedStringArray("anim_player") instance=ExtResource("1_0bu1i")]
+anim_player = NodePath("PugMannequin/AnimationPlayer")
+
+[node name="StateMachine" parent="." index="1" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("IdleState")
+
+[node name="IdleState" type="Node" parent="StateMachine" index="0" unique_id=1079848975]
+script = ExtResource("2_iapui")
+state_id = &"idle"
+next_state_id = &"patrol"
+animation_name = "custom/idle"
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="1" unique_id=1573670396]
+script = ExtResource("3_xc1yq")
+state_id = &"patrol"
+next_state_id = &"idle"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[node name="PugMannequin" parent="." index="3" unique_id=1732134047 instance=ExtResource("2_n0mit")]
+transform = Transform3D(0.2, 0, 0, 0, 0.2, 0, 0, 0, 0.2, 0, -0.9, 0)
+
+[node name="Skeleton3D" parent="PugMannequin/Armature" parent_id_path=PackedInt32Array(1732134047, 199608791) index="0" unique_id=33809722]
+bones/8/position = Vector3(-0.0054483665, 0.008346455, -0.020266803)
+bones/8/rotation = Quaternion(-0.007561639, 0.007561228, 0.70706636, 0.70706636)
+bones/9/rotation = Quaternion(0.6665347, -0.6790185, 0.20055033, -0.23333457)
+bones/10/rotation = Quaternion(-0.37439552, 0.017943675, 0.007246467, 0.92706716)
+bones/14/rotation = Quaternion(0.13296904, 0.051822018, -0.0069621373, 0.9897401)
+bones/16/position = Vector3(0.0048320387, 0.008252437, -0.02027757)
+bones/16/rotation = Quaternion(0.7070978, 0.7070978, -0.0035577225, 0.0035573125)
+bones/17/rotation = Quaternion(0.20727697, 0.22687204, 0.66435784, 0.68131787)
+bones/18/rotation = Quaternion(-0.38250104, -0.0087800585, -0.0036350952, 0.9239062)
+bones/20/rotation = Quaternion(0.6013276, -0.007656022, 0.017799761, 0.79876757)
+bones/24/rotation = Quaternion(-0.45064288, -0.22904137, 0.090387635, 0.858074)
+bones/27/rotation = Quaternion(0.05229574, 5.703821e-05, -0.025155801, 0.99831474)
+
+[node name="AnimationPlayer" parent="PugMannequin" index="1" unique_id=1653203922]
+libraries/custom = SubResource("AnimationLibrary_iapui")
+
+[editable path="PugMannequin"]

core/ai/agents/pug/pug_mannequin.tscn

@@ -0,0 +1,29 @@
+[gd_scene format=3 uid="uid://c16j3umhplew4"]
+
+[ext_resource type="PackedScene" uid="uid://buqmw5lbfom07" path="res://core/ai/agents/pug/pug.fbx" id="1_3c2yk"]
+
+[node name="PugMannequin" unique_id=1732134047 instance=ExtResource("1_3c2yk")]
+
+[node name="Skeleton3D" parent="Armature" parent_id_path=PackedInt32Array(251322627) index="0" unique_id=1067550931]
+bones/1/rotation = Quaternion(0.7071068, -8.7384586e-07, -8.7384575e-07, 0.7071067)
+bones/3/position = Vector3(5.37765e-05, 0.023020823, -0.0001735416)
+bones/4/rotation = Quaternion(0.0013124894, -0.0013127187, 0.7071056, 0.7071056)
+bones/5/rotation = Quaternion(0.7071125, -0.70201516, -0.045116592, 0.07163183)
+bones/6/rotation = Quaternion(0.13312602, -0.018813718, 0.0025276097, 0.9909174)
+bones/8/rotation = Quaternion(0.0006567046, -0.0006571151, 0.7071065, 0.7071065)
+bones/9/rotation = Quaternion(0.66675293, -0.67880416, 0.20062506, -0.23327015)
+bones/10/rotation = Quaternion(-0.35678986, 0.01807761, 0.006905738, 0.9339843)
+bones/12/rotation = Quaternion(0.70710534, 0.70710546, 0.0014091316, -0.0014093613)
+bones/13/rotation = Quaternion(-0.021626502, -0.09508007, 0.7082199, 0.6992257)
+bones/14/rotation = Quaternion(0.13296904, 0.051822014, -0.0069621364, 0.98974)
+bones/16/rotation = Quaternion(0.7071066, 0.7071067, 0.00044525132, -0.00044566192)
+bones/17/rotation = Quaternion(0.20738536, 0.2267729, 0.6646832, 0.6810004)
+bones/18/rotation = Quaternion(-0.35684106, -0.008877046, -0.003391197, 0.93411684)
+bones/20/rotation = Quaternion(0.6013276, -0.007656024, 0.017799761, 0.79876757)
+bones/22/rotation = Quaternion(0.0076703057, 0.9327372, 0.3595561, -0.025732514)
+bones/23/rotation = Quaternion(-0.089636706, -0.019697238, -0.01825219, 0.99561244)
+bones/24/rotation = Quaternion(-0.44343108, -0.23039742, 0.11800072, 0.85811526)
+bones/26/rotation = Quaternion(5.170388e-06, 0.6954638, 0.7185612, 5.0026606e-06)
+bones/27/rotation = Quaternion(0.052304644, 0.00074447604, -0.01352817, 0.99853927)
+bones/29/rotation = Quaternion(0.7071068, -9.581396e-07, -9.581394e-07, 0.7071067)
+bones/31/rotation = Quaternion(0.7071068, -1.2110207e-06, -1.2110205e-06, 0.7071067)

core/ai/agents/sheep/ai_sheep.tscn

@@ -0,0 +1,44 @@
+[gd_scene format=3 uid="uid://bs1bdtm7jdtgb"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_smbiq"]
+[ext_resource type="PackedScene" uid="uid://58u6viv3qd63" path="res://core/ai/agents/sheep/sheep_mannequin.tscn" id="2_hnenk"]
+[ext_resource type="Script" uid="uid://d3hy70ec8vqo5" path="res://core/ai/framework/run_animation_state.gd" id="2_vlyix"]
+[ext_resource type="Animation" uid="uid://bjvoxmyf4vdy8" path="res://core/ai/agents/sheep/idle.res" id="3_i3d22"]
+[ext_resource type="Script" uid="uid://bngfthvt04ivv" path="res://core/ai/framework/patrol_state.gd" id="3_uqv5v"]
+[ext_resource type="Animation" uid="uid://8r05h8e7nmic" path="res://core/ai/agents/sheep/walking.res" id="4_hxh1r"]
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_vlyix"]
+_data = {
+&"idle": ExtResource("3_i3d22"),
+&"walking": ExtResource("4_hxh1r")
+}
+
+[node name="AiSheep" unique_id=1228675528 node_paths=PackedStringArray("anim_player") instance=ExtResource("1_smbiq")]
+anim_player = NodePath("SheepMannequin/AnimationPlayer")
+
+[node name="StateMachine" parent="." index="1" unique_id=1286404264 node_paths=PackedStringArray("initial_state")]
+initial_state = NodePath("IdleState")
+
+[node name="IdleState" type="Node" parent="StateMachine" index="0" unique_id=190711451]
+script = ExtResource("2_vlyix")
+state_id = &"idle"
+next_state_id = &"patrol"
+animation_name = "custom/idle"
+
+[node name="PatrolState" type="Node" parent="StateMachine" index="1" unique_id=431976868]
+script = ExtResource("3_uqv5v")
+state_id = &"patrol"
+next_state_id = &"idle"
+animation_name = "custom/walking"
+exit_on_action_finished = true
+
+[node name="SheepMannequin" parent="." index="3" unique_id=1153770042 instance=ExtResource("2_hnenk")]
+transform = Transform3D(0.2, 0, 0, 0, 0.2, 0, 0, 0, 0.2, 0, -0.9, 0)
+
+[node name="Armature" parent="SheepMannequin" index="0" unique_id=62421163]
+transform = Transform3D(100, 0, 0, 0, -4.3711384e-06, 99.99999, 0, -99.99999, -4.3711384e-06, 0, 0, 0)
+
+[node name="AnimationPlayer" parent="SheepMannequin" index="1" unique_id=676833932]
+libraries/custom = SubResource("AnimationLibrary_vlyix")
+
+[editable path="SheepMannequin"]

core/ai/agents/sheep/sheep_mannequin.tscn

@@ -0,0 +1,29 @@
+[gd_scene format=3 uid="uid://58u6viv3qd63"]
+
+[ext_resource type="PackedScene" uid="uid://oog8biov508a" path="res://core/ai/agents/sheep/sheep.fbx" id="1_pnkxh"]
+
+[node name="SheepMannequin" unique_id=1153770042 instance=ExtResource("1_pnkxh")]
+
+[node name="Skeleton3D" parent="Armature" parent_id_path=PackedInt32Array(1644576745) index="0" unique_id=811031257]
+bones/1/rotation = Quaternion(0.7071068, -7.052583e-07, -7.052583e-07, 0.7071067)
+bones/4/rotation = Quaternion(0.0017592248, -0.0017595046, 0.7071046, 0.7071046)
+bones/5/rotation = Quaternion(0.706397, -0.7005701, -0.057003256, 0.08339989)
+bones/6/rotation = Quaternion(0.17354831, -0.018694565, 0.003295098, 0.98464245)
+bones/8/rotation = Quaternion(0.0011415672, -0.0011422854, 0.7071059, 0.7071059)
+bones/9/rotation = Quaternion(0.66940695, -0.67618734, 0.20153745, -0.23248184)
+bones/10/rotation = Quaternion(-0.38440856, 0.017864142, 0.0074402345, 0.92296034)
+bones/12/rotation = Quaternion(0.70710427, 0.7071044, 0.001866237, -0.0018665171)
+bones/13/rotation = Quaternion(-0.033540055, -0.106803544, 0.7078988, 0.6973861)
+bones/14/rotation = Quaternion(0.17334078, 0.051493812, -0.009075931, 0.9834729)
+bones/16/rotation = Quaternion(0.70710605, 0.7071062, 0.0009843343, -0.0009850523)
+bones/17/rotation = Quaternion(0.2082713, 0.22595985, 0.6673435, 0.67839366)
+bones/18/rotation = Quaternion(-0.384463, -0.008772296, -0.0036537221, 0.92309153)
+bones/20/rotation = Quaternion(0.6012591, 0.022893472, -0.005923484, 0.7987042)
+bones/22/rotation = Quaternion(0.006586622, 0.9146406, 0.40345904, -0.02469813)
+bones/23/rotation = Quaternion(0.07927493, -0.021147288, -0.014362239, 0.996525)
+bones/24/rotation = Quaternion(-0.6495659, -0.19198355, 0.17329836, 0.71496445)
+bones/26/rotation = Quaternion(3.4527793e-06, 0.6944211, 0.71956885, 3.3297817e-06)
+bones/27/rotation = Quaternion(0.0651835, 0.0008379451, -0.017830681, 0.9977136)
+bones/29/rotation = Quaternion(0.7071068, -7.052583e-07, -7.052583e-07, 0.7071067)
+bones/31/rotation = Quaternion(0.7071068, -1.0424332e-06, -1.0424329e-06, 0.7071067)
+bones/33/rotation = Quaternion(0.7071068, -1.0424332e-06, -1.0424329e-06, 0.7071067)

core/ai/framework/patrol_state.gd

@@ -1,12 +1,10 @@
 extends State
 
-const IDLE_STATE_ID: StringName = &"idle"
-
-@onready var agent: AIBase = owner
-
 func enter() -> void:
+	super.enter()
+	run_animation()
 	agent.navigate_to_random_point()
 
 func physics_update(_delta)  -> void:
 	if agent.nav_agent.is_navigation_finished():
-		transitioned.emit(self, IDLE_STATE_ID)
+		transitioned.emit(self, next_state_id)

core/ai/framework/run_animation_state.gd

@@ -0,0 +1,6 @@
+extends State
+
+
+func enter() -> void:
+	super.enter()
+	run_animation()

core/ai/framework/run_animation_state.gd.uid

@@ -0,0 +1 @@
+uid://d3hy70ec8vqo5

core/ai/framework/state.gd

@@ -3,18 +3,61 @@ extends Node
 class_name State
 
 @export var state_id: StringName = &""
+@export var next_state_id: StringName
+@export var animation_name: String
+@export var exit_on_action_finished: bool
+@export var exit_on_animation_finished: bool
+@export var min_wait_time: float = 3.0
+@export var max_wait_time: float = 10
+
+var runtime_timer: Timer
+
+@onready var agent: AIBase = owner
 
-@warning_ignore("unused_signal")
 signal transitioned(state: State, new_state_id: StringName)
 
-func enter()  -> void:
+func _ready() -> void:
+	if min_wait_time > 0 and !exit_on_action_finished:
+		runtime_timer = Timer.new()
+		runtime_timer.name = "IdleTimer"
+		runtime_timer.one_shot = true
+		add_child(runtime_timer)
+		runtime_timer.timeout.connect(_on_timer_timeout)
+
+func enter() -> void:
+	if exit_on_animation_finished:
+		if not agent.anim_player.animation_finished.is_connected(_on_animation_finished):
+			agent.anim_player.animation_finished.connect(_on_animation_finished)
+	elif min_wait_time > 0 and !exit_on_action_finished:
+		var wait_time:= randf_range(min_wait_time, max_wait_time)
+		runtime_timer.start(wait_time)
+
+func exit() -> void:
+	if exit_on_animation_finished and agent.anim_player.animation_finished.is_connected(_on_animation_finished):
+		agent.anim_player.animation_finished.disconnect(_on_animation_finished)
+
+	if runtime_timer and not runtime_timer.is_stopped():
+		runtime_timer.stop()
+
+func update(_delta: float) -> void:
 	pass
 
-func exit()  -> void:
+func physics_update(_delta: float) -> void:
 	pass
 
-func update(_delta)  -> void:
-	pass
+func run_animation() -> void:
+	if agent.anim_player and agent.anim_player.has_animation(animation_name):
+		agent.anim_player.play(animation_name)
 
-func physics_update(_delta)  -> void:
-	pass
+func _on_animation_finished(anim_name: StringName) -> void:
+	if animation_name == anim_name:
+		if exit_on_action_finished:
+			return
+		elif min_wait_time > 0:
+			var wait_time := randf_range(min_wait_time, max_wait_time)
+			runtime_timer.start(wait_time)
+		else:
+			transitioned.emit(self, next_state_id)
+
+func _on_timer_timeout() -> void:
+	transitioned.emit(self, next_state_id)

core/audio/audio_manager.gd

@@ -1,5 +1,7 @@
 extends Node
 
+signal volume_changed(bus_name: StringName, linear_value: float)
+
 const MIN_VOLUME: float = 0.0
 const MAX_VOLUME: float = 1.0
 
@@ -17,6 +19,7 @@ func set_audio_bus_volume(bus_name: StringName, linear_value: float) -> void:
 	GameState.save_data.audio_bus_volumes[normalized_bus_name] = clamped_value
 	_apply_audio_bus_volume(normalized_bus_name, clamped_value)
 	GameState.save_game()
+	volume_changed.emit(bus_name, clamped_value)
 
 func get_audio_bus_volume(bus_name: StringName, default_value: float = 1.0) -> float:
 	return float(GameState.save_data.audio_bus_volumes.get(str(bus_name), default_value))

core/audio/settings/audio_option.tscn

@@ -1,14 +0,0 @@
-[gd_scene format=3 uid="uid://cescrovsjlwke"]
-
-[ext_resource type="Script" uid="uid://bnh1y560h55vc" path="res://core/audio/settings/audio_option.gd" id="1_orafl"]
-
-[node name="AudioOption" type="VBoxContainer" unique_id=1509773712]
-custom_minimum_size = Vector2(300, 0)
-script = ExtResource("1_orafl")
-
-[node name="Label" type="Label" parent="." unique_id=781845786]
-layout_mode = 2
-text = "Master Volume"
-
-[node name="HSlider" type="HSlider" parent="." unique_id=1286896253]
-layout_mode = 2

core/audio/settings/settings_menu.tscn

@@ -1,74 +0,0 @@
-[gd_scene format=3 uid="uid://caqf471x0kttc"]
-
-[ext_resource type="Script" uid="uid://cvr25q1blyxg" path="res://core/audio/settings/settings_menu.gd" id="1_4lekq"]
-[ext_resource type="PackedScene" uid="uid://cescrovsjlwke" path="res://core/audio/settings/audio_option.tscn" id="1_hwcco"]
-
-[node name="SettingsMenu" type="Control" unique_id=1639777294]
-layout_mode = 3
-anchors_preset = 15
-anchor_right = 1.0
-anchor_bottom = 1.0
-grow_horizontal = 2
-grow_vertical = 2
-script = ExtResource("1_4lekq")
-
-[node name="PanelContainer" type="PanelContainer" parent="." unique_id=315821242]
-layout_mode = 1
-anchors_preset = 8
-anchor_left = 0.5
-anchor_top = 0.5
-anchor_right = 0.5
-anchor_bottom = 0.5
-offset_left = -79.5
-offset_top = -110.0
-offset_right = 79.5
-offset_bottom = 110.0
-grow_horizontal = 2
-grow_vertical = 2
-
-[node name="MarginContainer" type="MarginContainer" parent="PanelContainer" unique_id=648635784]
-layout_mode = 2
-size_flags_vertical = 0
-theme_override_constants/margin_left = 12
-theme_override_constants/margin_top = 12
-theme_override_constants/margin_right = 12
-theme_override_constants/margin_bottom = 12
-
-[node name="AudioOptionsContainer" type="VBoxContainer" parent="PanelContainer/MarginContainer" unique_id=824023653]
-unique_name_in_owner = true
-layout_mode = 2
-theme_override_constants/separation = 12
-
-[node name="MasterVolume_AudioOption" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=1509773712 instance=ExtResource("1_hwcco")]
-layout_mode = 2
-
-[node name="HSeparator" type="HSeparator" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=1053430754]
-layout_mode = 2
-
-[node name="MusicVolume_AudioOption" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=690924616 instance=ExtResource("1_hwcco")]
-layout_mode = 2
-bus_name = &"Music"
-label_text = "Music Volume"
-
-[node name="HSeparator2" type="HSeparator" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=453716295]
-layout_mode = 2
-
-[node name="SFXVolume_AudioOption" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=2096291127 instance=ExtResource("1_hwcco")]
-layout_mode = 2
-bus_name = &"SFX"
-label_text = "SFX Volume"
-
-[node name="HSeparator3" type="HSeparator" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=498553283]
-layout_mode = 2
-
-[node name="ResetToDefault_Button" type="Button" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=720420423]
-unique_name_in_owner = true
-layout_mode = 2
-size_flags_horizontal = 0
-text = "Reset To Default"
-
-[node name="Close_Button" type="Button" parent="PanelContainer/MarginContainer/AudioOptionsContainer" unique_id=1137906684]
-unique_name_in_owner = true
-layout_mode = 2
-size_flags_horizontal = 0
-text = "Close"

core/biome_generator/biome_generator.gd

@@ -1,42 +1,82 @@
 extends Node3D
 
+#constants about biome, pieces and entity spawn
 const CHUNK_TYPE_BIOME: int = 0
 const CHUNK_TYPE_STRAIGHT_TRACK: int = 1
 const CHUNK_TYPE_CURVED_TRACK: int = 2
+const ENTITY_TYPE_HUMANOID: int = 0
+const ENTITY_TYPE_ANIMAL: int = 1
+const ENTITY_SPAWN_ANY: int = 0
+const ENTITY_SPAWN_HUMANOID_ONLY: int = 1
+const ENTITY_SPAWN_ANIMAL_ONLY: int = 2
 
-const CHUNK_GENERATION_STEPS_PER_FRAME: int = 2
-const CHUNK_CLEANUP_STEPS_PER_FRAME: int = 4
-const LAMPPOST_WIRE_STEPS_PER_FRAME: int = 1
-const RAILWAY_SCENE_DIRECTORY: String = "res://tgcc/chunk/railway/scene"
+const MAX_CHUNK_UNIQUENESS: int = 5
+const RIVER_SIDE_ORDER: Array[String] = ["north", "est", "south", "west"]
+const RIVER_DIRECTIONS: Dictionary = {
+	"north": Vector2(0.0, -1.0),
+	"est": Vector2(1.0, 0.0),
+	"south": Vector2(0.0, 1.0),
+	"west": Vector2(-1.0, 0.0),
+}
+const RIVER_NEIGHBOUR_OFFSETS: Dictionary = {
+	"north": Vector2i(0, -1),
+	"est": Vector2i(1, 0),
+	"south": Vector2i(0, 1),
+	"west": Vector2i(-1, 0),
+}
+
+@export_group("Generation")
+@export var chunk_generation_frame_budget_usec: int = 1500 #2 ms/frame to generate chunks
+@export var chunk_cleanup_frame_budget_usec: int = 1000 #1 ms/frame per cleanup
+@export var lampost_wire_frame_budget_usec: int = 1000 #1 ms/frame per i fili dei lampioni
+#(about 4 ms of work for frame)
+#Se compaiono chunk troppo lentamente davanti al treno:
+#aumentare generazione a 3000 o 4000
+#Se ci sono micro-scatti:
+#abbassare generazione a 1000 o 1500
+#Se i fili appaiono in ritardo:
+#aumentare wire a 1500 o 2000
+#Se il cleanup causa scatti:
+#abbassare cleanup a 500
 
 @export_group("Rails")
-@export var rail_path: Path3D 
+@export var rail_path: Path3D #rail path
+@export var railway_pool: Resource
 
 @export_group("Biomes")
-@export var biome_list: Array[Biome]
+@export var biome_list: Array[Biome] #list of scenes for the biome
+
+@export_group("Entities")
+@export var entity_pool: Resource
+@export_range(0.0, 1.0, 0.01) var entity_spawn_probability: float = 0.6
+@export_range(0, 20, 1) var max_entities_per_chunk: int = 3
 
 @export_group("Grid and Area")
-@export var chunk_size: float = 20.0
-@export var eye_line: int = 3 
-@export var district_scale: float = 0.05 
+@export var chunk_size: float = 20.0	#size of a cell; default 20 (global position is defined dividing x and z for this value) 
+@export var eye_line: int = 3 #cells to be considerated around the train (e.g. 3 => a square of cells from -3 to 3 around train cell)
+@export var district_scale: float = 0.05 #noise value to distribuite biome; low values create large area, high values create biome with more variants
 
 @export_group("Lamppost")
 @export var lamppost_wire_material: ShaderMaterial 
 @export_range(0.01, 1.0) var wire_thickness: float = 0.05
-@export var lamppost_dist_factor: int = 10
+@export var lamppost_dist_factor: int = 10 #max distance of connections
 
 var board: Dictionary = {}
 var last_pos_train: Vector2i = Vector2i(999999, 999999) 
 var noise_generator: FastNoiseLite 
 var altitude_generator: FastNoiseLite
 var wire_connections: Dictionary = {}
-var chunk_candidate_cache: Dictionary = {}
+var chunk_candidate_cache: Dictionary = {} #node cache (metadata)
+var prop_candidate_cache: Dictionary = {}
+var entity_candidate_cache: Dictionary = {}
 var pending_generation_cells: Array[Vector2i] = []
 var pending_cleanup_cells: Array[Vector2i] = []
 var pending_wire_cells: Array[Vector2i] = []
+var pending_generation_cursor: int = 0
+var pending_cleanup_cursor: int = 0
+var pending_wire_cursor: int = 0
 var pending_wire_lookup: Dictionary = {}
-var pending_radar_update: bool = false
-var rail_chunk_catalogue: Dictionary = {}
+var rail_chunk_catalogue: Dictionary = {} #rails chunk list
 
 var manual_biome: Biome = null
 
@@ -45,7 +85,8 @@ func _ready() -> void:
 
 	#connect events
 	UIEvents.update_rail_chunks.connect(_update_rail_chunks)
-		
+	
+	#noise generator for biome and altitute
 	noise_generator = FastNoiseLite.new()
 	noise_generator.noise_type = FastNoiseLite.TYPE_PERLIN
 	noise_generator.seed = randi() 
@@ -56,8 +97,11 @@ func _ready() -> void:
 	altitude_generator.seed = randi() 
 	altitude_generator.frequency = district_scale * 0.5 
 	
+	#fill cache with available chunk
 	_warm_chunk_candidate_cache()
+	_warm_entity_candidate_cache()
 	_warm_rail_chunk_catalogue()
+	#set unique pieces
 	_update_set_pieces()
 
 func _update_set_pieces() -> void:
@@ -72,7 +116,7 @@ func _update_set_pieces() -> void:
 
 		var local_biome = ""
 		if manual_biome != null:
-			local_biome = manual_biome.nome
+			local_biome = manual_biome.name
 		else:
 			var grid_x = roundi(sp.global_position.x / chunk_size)
 			var grid_z = roundi(sp.global_position.z / chunk_size)
@@ -90,6 +134,7 @@ func _update_set_pieces() -> void:
 	
 func _destroy_and_regenrate_world() -> void:
 	_warm_chunk_candidate_cache()
+	_warm_entity_candidate_cache()
 	_clear_pending_world_work()
 
 	#Turn off old temples
@@ -98,7 +143,7 @@ func _destroy_and_regenrate_world() -> void:
 	#Destroy all models
 	for pos in board.keys():
 		var cella = board[pos]
-		if cella["type"] != "obstacle":
+		if not _is_persistent_obstacle(cella):
 			if cella.has("node") and is_instance_valid(cella["node"]):
 				cella["node"].queue_free()
 				
@@ -112,16 +157,13 @@ func _destroy_and_regenrate_world() -> void:
 		var train_pos = rail_path.train_instance.global_position
 		var current_pos = Vector2i(roundi(train_pos.x / chunk_size), roundi(train_pos.z / chunk_size))
 		_refresh_world(current_pos)
-		pending_radar_update = true
 
 func _process(_delta: float) -> void:
+	#based on time budgets the queues are evaluated by frame and not all together
 	_drain_cleanup_queue()
 	_drain_generation_queue()
 	_drain_wire_queue()
 
-	if pending_radar_update:
-		pending_radar_update = false
-
 func _physics_process(_delta: float) -> void:
 	if rail_path == null or rail_path.train_instance == null: return
 		
@@ -133,7 +175,6 @@ func _physics_process(_delta: float) -> void:
 	if current_pos != last_pos_train:
 		last_pos_train = current_pos
 		_refresh_world(current_pos)
-		pending_radar_update = true
 
 func collect_all_chunkinfo(root: Node, list: Array[Node]) -> void:
 	if root == null: return
@@ -144,6 +185,33 @@ func collect_all_chunkinfo(root: Node, list: Array[Node]) -> void:
 	for child in root.get_children():
 		collect_all_chunkinfo(child, list)
 
+func collect_all_propinfo(root: Node, list: Array[Node]) -> void:
+	if root == null: return
+
+	if "available_props" in root:
+		list.append(root)
+
+	for child in root.get_children():
+		collect_all_propinfo(child, list)
+
+func collect_all_entityinfo(root: Node, list: Array[Node]) -> void:
+	if root == null: return
+
+	if "entity_type" in root:
+		list.append(root)
+
+	for child in root.get_children():
+		collect_all_entityinfo(child, list)
+
+func collect_all_entity_spawn_points(root: Node, list: Array[Node]) -> void:
+	if root == null: return
+
+	if "allowed_type" in root or root.is_in_group("entity_spawn_point"):
+		list.append(root)
+
+	for child in root.get_children():
+		collect_all_entity_spawn_points(child, list)
+
 func _warm_chunk_candidate_cache() -> void:
 	var unique_scenes: Dictionary = {}
 
@@ -164,27 +232,30 @@ func _warm_chunk_candidate_cache() -> void:
 	for scene in unique_scenes.values():
 		_get_chunk_scene_metadata(scene)
 
-func _warm_rail_chunk_catalogue() -> void:
-	rail_chunk_catalogue.clear()
-
-	var directory := DirAccess.open(RAILWAY_SCENE_DIRECTORY)
-	if directory == null:
+func _warm_entity_candidate_cache() -> void:
+	entity_candidate_cache.clear()
+	if entity_pool == null or not "available_entities" in entity_pool:
 		return
 
-	directory.list_dir_begin()
-	var file_name := directory.get_next()
-	while file_name != "":
-		if not directory.current_is_dir() and file_name.ends_with(".tscn"):
-			var scene_path := "%s/%s" % [RAILWAY_SCENE_DIRECTORY, file_name]
-			var scene := load(scene_path) as PackedScene
-			if scene != null:
-				var chunk_type = _get_chunk_type_from_scene(scene)
-				if chunk_type == CHUNK_TYPE_STRAIGHT_TRACK or chunk_type == CHUNK_TYPE_CURVED_TRACK:
-					if not rail_chunk_catalogue.has(chunk_type):
-						rail_chunk_catalogue[chunk_type] = []
-					rail_chunk_catalogue[chunk_type].append(scene)
-		file_name = directory.get_next()
-	directory.list_dir_end()
+	for scene in entity_pool.available_entities:
+		if scene == null:
+			continue
+		_get_entity_scene_metadata(scene)
+
+func _warm_rail_chunk_catalogue() -> void:
+	rail_chunk_catalogue.clear()
+	if railway_pool == null or not "available_railways" in railway_pool:
+		return
+
+	for scene in railway_pool.available_railways:
+		if scene == null:
+			continue
+
+		var chunk_type = _get_chunk_type_from_scene(scene)
+		if chunk_type == CHUNK_TYPE_STRAIGHT_TRACK or chunk_type == CHUNK_TYPE_CURVED_TRACK:
+			if not rail_chunk_catalogue.has(chunk_type):
+				rail_chunk_catalogue[chunk_type] = []
+			rail_chunk_catalogue[chunk_type].append(scene)
 
 func _get_chunk_scene_cache_key(scene: PackedScene) -> String:
 	if scene == null:
@@ -226,6 +297,7 @@ func _get_chunk_scene_metadata(scene: PackedScene) -> Dictionary:
 		"info_path": info_path,
 		"rotations": rotations,
 		"has_lamppost": "have_lamppost" in info_node and info_node.have_lamppost,
+		"uniqueness": _get_chunk_uniqueness_from_info(info_node),
 	}
 	preview_chunk.queue_free()
 	chunk_candidate_cache[key] = metadata
@@ -259,8 +331,10 @@ func _clear_pending_world_work() -> void:
 	pending_generation_cells.clear()
 	pending_cleanup_cells.clear()
 	pending_wire_cells.clear()
+	pending_generation_cursor = 0
+	pending_cleanup_cursor = 0
+	pending_wire_cursor = 0
 	pending_wire_lookup.clear()
-	pending_radar_update = false
 
 func _collect_replaceable_rail_chunks(root: Node, result: Array[Node3D]) -> void:
 	if root == null:
@@ -268,7 +342,7 @@ func _collect_replaceable_rail_chunks(root: Node, result: Array[Node3D]) -> void
 
 	if root is Node3D:
 		var node_3d := root as Node3D
-		if node_3d.scene_file_path.begins_with(RAILWAY_SCENE_DIRECTORY):
+		if _is_railway_scene_registered(node_3d.scene_file_path):
 			var info_list: Array[Node] = []
 			collect_all_chunkinfo(node_3d, info_list)
 			var info_node = info_list[0] if info_list.size() > 0 else null
@@ -281,6 +355,17 @@ func _collect_replaceable_rail_chunks(root: Node, result: Array[Node3D]) -> void
 	for child in root.get_children():
 		_collect_replaceable_rail_chunks(child, result)
 
+func _is_railway_scene_registered(scene_path: String) -> bool:
+	if scene_path == "":
+		return false
+
+	for candidates in rail_chunk_catalogue.values():
+		for candidate in candidates:
+			var scene := candidate as PackedScene
+			if scene != null and scene.resource_path == scene_path:
+				return true
+	return false
+
 func _pick_replacement_rail_scene(chunk_type: int, current_scene_path: String) -> PackedScene:
 	var candidates: Array = rail_chunk_catalogue.get(chunk_type, [])
 	if candidates.is_empty():
@@ -327,6 +412,8 @@ func _replace_rail_chunk_instance(chunk_root: Node3D) -> bool:
 	chunk_root.queue_free()
 	return true
 
+#rebuild the scene catalogue from railway_pool,
+#than serach on the current scene which chunks can be changed and for each one chose a new scene (the same kind)
 func _refresh_rail_chunks() -> void:
 	print("update rail chunks")
 	_warm_rail_chunk_catalogue()
@@ -354,8 +441,12 @@ func _refresh_world(center: Vector2i) -> void:
 	_rebuild_generation_queue(center)
 	_rebuild_cleanup_queue(center)
 
+#check cells around the train by rings:
+#first the center, then borders with distance = 1, the distance = 2 and so to eye_line.
+#Use maxi(abs(x), abs(z)) to know the border of the ring. Cells closest to the train have more priority
 func _rebuild_generation_queue(center: Vector2i) -> void:
 	pending_generation_cells.clear()
+	pending_generation_cursor = 0
 
 	for radius in range(eye_line + 1):
 		for x in range(-radius, radius + 1):
@@ -368,13 +459,17 @@ func _rebuild_generation_queue(center: Vector2i) -> void:
 					continue
 				pending_generation_cells.append(grid_pos)
 
+#For each cells add to cleanup queue the cells too far
+#Use eye_line plus a margin value to hide chunks not instantly when go out of the eye line
+#Persistent obstacle cells are not deleted (rails or set_pieces)
 func _rebuild_cleanup_queue(center: Vector2i) -> void:
 	pending_cleanup_cells.clear()
+	pending_cleanup_cursor = 0
 	var safe_margin = 2
 
 	for grid_pos in board.keys():
 		var cell = board[grid_pos]
-		if cell["type"] == "obstacle":
+		if _is_persistent_obstacle(cell):
 			continue
 
 		var dist_x = abs(grid_pos.x - center.x)
@@ -382,10 +477,16 @@ func _rebuild_cleanup_queue(center: Vector2i) -> void:
 		if dist_x > eye_line + safe_margin or dist_z > eye_line + safe_margin:
 			pending_cleanup_cells.append(grid_pos)
 
+#Check if a queue can continue to work based on time budget setted
+func _queue_has_frame_budget(start_usec: int, budget_usec: int, processed: int) -> bool:
+	return processed == 0 or Time.get_ticks_usec() - start_usec < budget_usec
+
 func _drain_generation_queue() -> void:
-	var processed = 0
-	while processed < CHUNK_GENERATION_STEPS_PER_FRAME and not pending_generation_cells.is_empty():
-		var grid_pos = pending_generation_cells.pop_front()
+	var processed: int = 0
+	var start_usec: int = Time.get_ticks_usec()
+	while pending_generation_cursor < pending_generation_cells.size() and _queue_has_frame_budget(start_usec, chunk_generation_frame_budget_usec, processed):
+		var grid_pos: Vector2i = pending_generation_cells[pending_generation_cursor]
+		pending_generation_cursor += 1
 		if board.has(grid_pos):
 			continue
 
@@ -394,15 +495,21 @@ func _drain_generation_queue() -> void:
 			_add_compatible_biome(grid_pos)
 		processed += 1
 
+	if pending_generation_cursor >= pending_generation_cells.size():
+		pending_generation_cells.clear()
+		pending_generation_cursor = 0
+
 func _drain_cleanup_queue() -> void:
-	var processed = 0
-	while processed < CHUNK_CLEANUP_STEPS_PER_FRAME and not pending_cleanup_cells.is_empty():
-		var grid_pos = pending_cleanup_cells.pop_front()
+	var processed: int = 0
+	var start_usec: int = Time.get_ticks_usec()
+	while pending_cleanup_cursor < pending_cleanup_cells.size() and _queue_has_frame_budget(start_usec, chunk_cleanup_frame_budget_usec, processed):
+		var grid_pos: Vector2i = pending_cleanup_cells[pending_cleanup_cursor]
+		pending_cleanup_cursor += 1
 		if not board.has(grid_pos):
 			continue
 
 		var cell = board[grid_pos]
-		if cell["type"] == "obstacle":
+		if _is_persistent_obstacle(cell):
 			continue
 
 		if cell.has("node") and is_instance_valid(cell["node"]):
@@ -410,6 +517,10 @@ func _drain_cleanup_queue() -> void:
 		board.erase(grid_pos)
 		processed += 1
 
+	if pending_cleanup_cursor >= pending_cleanup_cells.size():
+		pending_cleanup_cells.clear()
+		pending_cleanup_cursor = 0
+
 func _queue_lamppost_wire_connection(grid_pos: Vector2i) -> void:
 	if pending_wire_lookup.has(grid_pos):
 		return
@@ -417,9 +528,11 @@ func _queue_lamppost_wire_connection(grid_pos: Vector2i) -> void:
 	pending_wire_cells.append(grid_pos)
 
 func _drain_wire_queue() -> void:
-	var processed = 0
-	while processed < LAMPPOST_WIRE_STEPS_PER_FRAME and not pending_wire_cells.is_empty():
-		var grid_pos = pending_wire_cells.pop_front()
+	var processed: int = 0
+	var start_usec: int = Time.get_ticks_usec()
+	while pending_wire_cursor < pending_wire_cells.size() and _queue_has_frame_budget(start_usec, lampost_wire_frame_budget_usec, processed):
+		var grid_pos: Vector2i = pending_wire_cells[pending_wire_cursor]
+		pending_wire_cursor += 1
 		pending_wire_lookup.erase(grid_pos)
 
 		if not board.has(grid_pos):
@@ -430,6 +543,10 @@ func _drain_wire_queue() -> void:
 		_connect_lamppost_wires(grid_pos)
 		processed += 1
 
+	if pending_wire_cursor >= pending_wire_cells.size():
+		pending_wire_cells.clear()
+		pending_wire_cursor = 0
+
 func _generate_pieces_around_train(center: Vector2i) -> void:
 	for x in range(-eye_line, eye_line + 1):
 		for z in range(-eye_line, eye_line + 1):
@@ -440,6 +557,8 @@ func _generate_pieces_around_train(center: Vector2i) -> void:
 				if not ce_obstacle:
 					_add_compatible_biome(grid_pos)
 
+#Decice which catalogue of chunks use for a cell. If manual_biome is set use always it
+#Otherwise read noise_generator.get_noise_2d to give an index for biome_list
 func _choose_catalogue_by_cell(grid_pos: Vector2i) -> Array[PackedScene]:
 	if manual_biome != null:
 		return manual_biome.available_chunks
@@ -449,6 +568,13 @@ func _choose_catalogue_by_cell(grid_pos: Vector2i) -> Array[PackedScene]:
 	var indice = clamp(int(normalized_value * biome_list.size()), 0, biome_list.size() - 1)
 	return biome_list[indice].available_chunks
 
+func _choose_biome_name_by_cell(grid_pos: Vector2i) -> String:
+	if manual_biome != null:
+		return manual_biome.name
+
+	var value = noise_generator.get_noise_2d(grid_pos.x, grid_pos.y)
+	return _get_procedural_biome_name(value)
+
 func _get_procedural_biome_name(value: float) -> String:
 	if manual_biome != null:
 		return manual_biome.name
@@ -457,6 +583,262 @@ func _get_procedural_biome_name(value: float) -> String:
 	var index = clamp(int(normalized_value * biome_list.size()), 0, biome_list.size() - 1)
 	return biome_list[index].name
 
+func _get_chunk_uniqueness_from_info(info_node: Node) -> int:
+	if info_node != null and "uniqueness" in info_node:
+		return clampi(info_node.uniqueness, 0, MAX_CHUNK_UNIQUENESS)
+	return 0
+
+func _get_prop_uniqueness_from_info(info_node: Node) -> int:
+	if info_node != null and "uniqueness" in info_node:
+		return clampi(info_node.uniqueness, 0, MAX_CHUNK_UNIQUENESS)
+	return -1
+
+func _is_persistent_obstacle(cell: Dictionary) -> bool:
+	return cell.get("type", "") == "obstacle" and cell.get("persistent", true)
+
+func _has_nearby_unique_chunk(grid_pos: Vector2i, uniqueness: int) -> bool:
+	if uniqueness <= 0:
+		return false
+
+	for nearby_pos in board.keys():
+		var nearby_uniqueness = int(board[nearby_pos].get("uniqueness", 0))
+		if nearby_uniqueness <= 0:
+			continue
+
+		var min_distance = maxi(uniqueness, nearby_uniqueness)
+		var dist_x = abs(nearby_pos.x - grid_pos.x)
+		var dist_z = abs(nearby_pos.y - grid_pos.y)
+		if dist_x <= min_distance and dist_z <= min_distance:
+			return true
+	return false
+
+func _get_uniqueness_pick_weight(uniqueness: int) -> float:
+	return 1.0 / pow(float(uniqueness + 1), 2.0)
+
+func _pick_weighted_candidate(candidates: Array) -> Dictionary:
+	var total_weight = 0.0
+	for candidate in candidates:
+		total_weight += candidate.weight
+
+	if total_weight <= 0.0:
+		return candidates.pick_random()
+
+	var target_weight = randf() * total_weight
+	var current_weight = 0.0
+	for candidate in candidates:
+		current_weight += candidate.weight
+		if current_weight >= target_weight:
+			return candidate
+	return candidates.back()
+
+func _pick_backup_scene(zone_catalogue: Array[PackedScene], grid_pos: Vector2i) -> PackedScene:
+	for scene in zone_catalogue:
+		var metadata = _get_chunk_scene_metadata(scene)
+		var uniqueness = int(metadata.get("uniqueness", 0))
+		if not _has_nearby_unique_chunk(grid_pos, uniqueness):
+			return scene
+	return zone_catalogue[0]
+
+func _get_prop_scene_cache_key(scene: PackedScene) -> String:
+	if scene == null:
+		return ""
+	if scene.resource_path != "":
+		return scene.resource_path
+	return "prop_scene_%s" % scene.get_instance_id()
+
+func _get_entity_scene_cache_key(scene: PackedScene) -> String:
+	if scene == null:
+		return ""
+	if scene.resource_path != "":
+		return scene.resource_path
+	return "entity_scene_%s" % scene.get_instance_id()
+
+func _get_entity_scene_metadata(scene: PackedScene) -> Dictionary:
+	if scene == null:
+		return {}
+
+	var key = _get_entity_scene_cache_key(scene)
+	if entity_candidate_cache.has(key):
+		return entity_candidate_cache[key]
+
+	var preview_entity = scene.instantiate()
+	var entity_info_list: Array[Node] = []
+	collect_all_entityinfo(preview_entity, entity_info_list)
+	var info_node = entity_info_list[0] if entity_info_list.size() > 0 else null
+
+	if info_node == null:
+		preview_entity.queue_free()
+		entity_candidate_cache[key] = {}
+		return {}
+
+	var metadata = {
+		"type": info_node.entity_type,
+		"name": info_node.entity_name if "entity_name" in info_node else "",
+		"allowed_biomes": info_node.allowed_biomes.duplicate() if "allowed_biomes" in info_node else [],
+		"weight": maxf(info_node.spawn_uniqueness if "spawn_uniqueness" in info_node else 1.0, 0.0001)
+	}
+	preview_entity.queue_free()
+	entity_candidate_cache[key] = metadata
+	return metadata
+
+func _get_prop_scene_uniqueness(scene: PackedScene) -> int:
+	if scene == null:
+		return -1
+
+	var key = _get_prop_scene_cache_key(scene)
+	if prop_candidate_cache.has(key):
+		return prop_candidate_cache[key]
+
+	var preview_prop = scene.instantiate()
+	var uniqueness = _get_prop_uniqueness_from_info(preview_prop)
+	if uniqueness == -1:
+		var prop_info_list: Array[Node] = []
+		collect_all_propinfo(preview_prop, prop_info_list)
+		if not prop_info_list.is_empty():
+			uniqueness = _get_prop_uniqueness_from_info(prop_info_list[0])
+	preview_prop.queue_free()
+
+	prop_candidate_cache[key] = uniqueness
+	return uniqueness
+
+func _get_marker_prop_uniqueness(marker: Node) -> int:
+	var uniqueness = _get_prop_uniqueness_from_info(marker)
+	if uniqueness == -1:
+		return 0
+	return uniqueness
+
+func _pick_weighted_prop_scene(marker: Node) -> PackedScene:
+	var candidates = []
+	var fallback_uniqueness = _get_marker_prop_uniqueness(marker)
+
+	for prop_scene in marker.available_props:
+		if prop_scene == null:
+			continue
+
+		var uniqueness = _get_prop_scene_uniqueness(prop_scene)
+		if uniqueness == -1:
+			uniqueness = fallback_uniqueness
+
+		candidates.append({
+			"scene": prop_scene,
+			"weight": _get_uniqueness_pick_weight(uniqueness),
+			"uniqueness": uniqueness
+		})
+
+	if candidates.is_empty():
+		return null
+	return _pick_weighted_candidate(candidates).scene
+
+func _spawn_props_for_chunk(root: Node) -> void:
+	var prop_markers: Array[Node] = []
+	collect_all_propinfo(root, prop_markers)
+
+	for marker in prop_markers:
+		_spawn_prop_for_marker(marker)
+
+func _spawn_prop_for_marker(marker: Node) -> void:
+	if marker.available_props.is_empty():
+		return
+
+	var prop_scene = _pick_weighted_prop_scene(marker)
+	if prop_scene == null:
+		return
+
+	var prop_instance = prop_scene.instantiate()
+	var prop_node = prop_instance as Node3D
+	if prop_node == null:
+		prop_instance.queue_free()
+		return
+
+	marker.add_child(prop_node)
+	prop_node.transform = Transform3D.IDENTITY
+
+func _spawn_entities_for_chunk(root: Node, biome_name: String) -> void:
+	if entity_pool == null or not "available_entities" in entity_pool:
+		return
+	if entity_pool.available_entities.is_empty():
+		return
+	if entity_spawn_probability <= 0.0 or max_entities_per_chunk <= 0:
+		return
+	if entity_candidate_cache.is_empty():
+		_warm_entity_candidate_cache()
+
+	var spawn_points: Array[Node] = []
+	collect_all_entity_spawn_points(root, spawn_points)
+	if spawn_points.is_empty():
+		return
+
+	spawn_points.shuffle()
+	var spawned_count: int = 0
+	for spawn_point in spawn_points:
+		if spawned_count >= max_entities_per_chunk:
+			break
+
+		var point_node = spawn_point as Node3D
+		if point_node == null:
+			continue
+
+		var spawn_chance = entity_spawn_probability
+		if "spawn_chance" in spawn_point:
+			spawn_chance *= spawn_point.spawn_chance
+		if randf() > spawn_chance:
+			continue
+
+		var entity_scene = _pick_compatible_entity(biome_name, _get_spawn_point_type_filter(spawn_point))
+		if entity_scene == null:
+			continue
+
+		var entity_instance = entity_scene.instantiate()
+		var entity_node = entity_instance as Node3D
+		if entity_node == null:
+			entity_instance.queue_free()
+			continue
+
+		root.add_child(entity_node)
+		entity_node.global_transform = point_node.global_transform
+		if "random_y_rotation" in spawn_point and spawn_point.random_y_rotation:
+			entity_node.rotate_y(randf() * TAU)
+		spawned_count += 1
+
+func _get_spawn_point_type_filter(spawn_point: Node) -> int:
+	if "allowed_type" in spawn_point:
+		match spawn_point.allowed_type:
+			ENTITY_SPAWN_HUMANOID_ONLY:
+				return ENTITY_TYPE_HUMANOID
+			ENTITY_SPAWN_ANIMAL_ONLY:
+				return ENTITY_TYPE_ANIMAL
+	return -1
+
+func _pick_compatible_entity(biome_name: String, type_filter: int) -> PackedScene:
+	if entity_pool == null or not "available_entities" in entity_pool:
+		return null
+
+	var candidates = []
+	for entity_scene in entity_pool.available_entities:
+		if entity_scene == null:
+			continue
+
+		var metadata = _get_entity_scene_metadata(entity_scene)
+		if metadata.is_empty():
+			continue
+		if type_filter != -1 and int(metadata["type"]) != type_filter:
+			continue
+
+		var allowed_biomes: Array = metadata.get("allowed_biomes", [])
+		if not allowed_biomes.is_empty() and not allowed_biomes.has(biome_name):
+			continue
+
+		candidates.append({
+			"scene": entity_scene,
+			"weight": float(metadata.get("weight", 1.0))
+		})
+
+	if candidates.is_empty():
+		return null
+	return _pick_weighted_candidate(candidates).scene
+
+#Using a vertical raycast from the top to the bottom at the center of the cell
+#If there is a collision search for a new chunk node
 func _register_cell_with_ray(grid_pos: Vector2i) -> bool:
 	if board.has(grid_pos): return true 
 	
@@ -504,6 +886,7 @@ func _register_cell_with_ray(grid_pos: Vector2i) -> bool:
 		var river_exit_found = {"north": false, "est": false, "south": false, "west": false}
 		var height_found = {"north": 0, "est": 0, "south": 0, "west": 0}
 		var have_lamppost = false
+		var uniqueness = 0
 		
 		#Get node info
 		if right_info_node != null:
@@ -517,6 +900,8 @@ func _register_cell_with_ray(grid_pos: Vector2i) -> bool:
 			if "have_lamppost" in right_info_node:
 				have_lamppost = right_info_node.have_lamppost
 
+			uniqueness = _get_chunk_uniqueness_from_info(right_info_node)
+
 		#Add piece to the grid
 		board[grid_pos] = {
 			"type": "obstacle", 
@@ -525,7 +910,9 @@ func _register_cell_with_ray(grid_pos: Vector2i) -> bool:
 			"heights": height_found, 
 			"node": root_chunk,  
 			"info": right_info_node,     
-			"have_lamppost": have_lamppost
+			"have_lamppost": have_lamppost,
+			"uniqueness": uniqueness,
+			"persistent": true
 		}
 		
 		if have_lamppost:
@@ -534,6 +921,11 @@ func _register_cell_with_ray(grid_pos: Vector2i) -> bool:
 		return true 
 	return false 
 
+#For the cell to fill check the contrains for the four neighbors:
+#If the neighbor at north have and exit on south then new chunk should have exit to north (the same for east and ovest)
+#Contrains: 1 -> connection is mandatory; 0 -> no connection; -1 -> no contrain because there is no neighbor or it already exits
+#When generator know the contrains take all chunks and try all different rotations
+#A candidate is valid only if all contrains are correct
 func _add_compatible_biome(grid_pos: Vector2i) -> void:
 	var req_conn_north = _needed_connection(grid_pos + Vector2i(0, -1), "south")
 	var req_conn_est = _needed_connection(grid_pos + Vector2i(1, 0), "west")
@@ -553,6 +945,7 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
 	var height_target = clamp(roundi((height_noise + 1.0) / 2.0), 0, 1)
 	
 	var zone_catalogue = _choose_catalogue_by_cell(grid_pos)
+	var biome_name = _choose_biome_name_by_cell(grid_pos)
 	var valid_candidates = []
 	
 	for scene in zone_catalogue:
@@ -566,6 +959,9 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
 			var u_conn = data["connections"]
 			var u_river_conn = data["river_connections"]
 			var u_height = data["heights"]
+			var uniqueness = int(metadata.get("uniqueness", 0))
+			if _has_nearby_unique_chunk(grid_pos, uniqueness):
+				continue
 			
 			var match_conn_n = (req_conn_north == -1) or ((req_conn_north == 1) == u_conn["north"])
 			var match_conn_e = (req_conn_est == -1)  or ((req_conn_est == 1) == u_conn["est"])
@@ -594,7 +990,14 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
 				if req_height_south == -1 and u_height["south"] == height_target: score += 1
 				if req_height_west == -1 and u_height["west"] == height_target: score += 1
 				
-				valid_candidates.append({"scene": scene, "rotation": rot, "data": data, "score": score})
+				valid_candidates.append({
+					"scene": scene,
+					"rotation": rot,
+					"data": data,
+					"score": score,
+					"weight": _get_uniqueness_pick_weight(uniqueness),
+					"uniqueness": uniqueness
+				})
 		
 	if valid_candidates.size() > 0:
 		var max_score = -1
@@ -605,37 +1008,48 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
 		for c in valid_candidates:
 			if c.score == max_score: best_candidate.append(c)
 				
-		var choise = best_candidate.pick_random()
+		var choise = _pick_weighted_candidate(best_candidate)
 		var new_chunk = choise.scene.instantiate()
 		new_chunk.position = Vector3(grid_pos.x * chunk_size, 0, grid_pos.y * chunk_size)
 		new_chunk.rotation.y = choise.rotation * (-PI / 2.0)
 		add_child(new_chunk)
+		_spawn_props_for_chunk(new_chunk)
+		_spawn_entities_for_chunk(new_chunk, biome_name)
 		
 		var info_new = _get_cached_chunk_info(new_chunk, choise.scene)
 		
 		var have_lamppost = false
 		if info_new != null and "have_lamppost" in info_new:
 			have_lamppost = info_new.have_lamppost
+
+		var river_flow_direction = _calculate_river_flow_direction(grid_pos, choise.data["river_connections"])
+		_apply_river_flow_direction(new_chunk, river_flow_direction)
 			
 		board[grid_pos] = {
-			"type": "bioma", 
+			"type": "biome", 
 			"exit": choise.data["connections"], 
 			"river_exit": choise.data["river_connections"],
+			"river_flow_direction": river_flow_direction,
 			"heights": choise.data["heights"], 
 			"node": new_chunk, 
 			"info": info_new,
-			"have_lamppost": have_lamppost
+			"have_lamppost": have_lamppost,
+			"uniqueness": choise.uniqueness
 		}
 		
 		if have_lamppost:
 			_queue_lamppost_wire_connection(grid_pos)
 
 	else:	
-		var backup = zone_catalogue[0].instantiate()
+		var backup_scene = _pick_backup_scene(zone_catalogue, grid_pos)
+		var backup = backup_scene.instantiate()
 		backup.position = Vector3(grid_pos.x * chunk_size, 0, grid_pos.y * chunk_size)
 		add_child(backup)
+		_spawn_props_for_chunk(backup)
+		_spawn_entities_for_chunk(backup, biome_name)
 		
-		var info_backup = _get_cached_chunk_info(backup, zone_catalogue[0])
+		var info_backup = _get_cached_chunk_info(backup, backup_scene)
+		var backup_uniqueness = _get_chunk_uniqueness_from_info(info_backup)
 	
 		var safe_heights = {
 			"north": req_height_north if req_height_north != -1 else height_target,
@@ -647,12 +1061,112 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
 			"type": "biome", 
 			"exit": {"north":false, "est":false, "south":false, "west":false}, 
 			"river_exit": {"north":false, "est":false, "south":false, "west":false},
+			"river_flow_direction": Vector2.ZERO,
 			"heights": safe_heights, 
 			"node": backup,
 			"info": info_backup,
-			"have_lamppost": false
+			"have_lamppost": false,
+			"uniqueness": backup_uniqueness
 		}
 
+#Check if a neighbors have a river direction: if yes try to continue it,
+#otherwise create a direction based on connections
+func _calculate_river_flow_direction(grid_pos: Vector2i, river_connections: Dictionary) -> Vector2:
+	var connected_sides: Array[String] = []
+	for side in RIVER_SIDE_ORDER:
+		if river_connections.has(side) and river_connections[side]:
+			connected_sides.append(side)
+
+	if connected_sides.is_empty():
+		return Vector2.ZERO
+
+	var neighbour_flow = _get_connected_neighbour_river_flow(grid_pos, connected_sides)
+	if not neighbour_flow.is_zero_approx():
+		var continued_flow = _continue_river_flow_from_neighbour(grid_pos, connected_sides, neighbour_flow)
+		if not continued_flow.is_zero_approx():
+			return continued_flow.normalized()
+
+	var default_flow = _get_default_river_flow(connected_sides)
+	if default_flow.is_zero_approx():
+		return Vector2.ZERO
+	return default_flow.normalized()
+
+func _get_connected_neighbour_river_flow(grid_pos: Vector2i, connected_sides: Array[String]) -> Vector2:
+	for side in connected_sides:
+		var neighbour_pos: Vector2i = grid_pos + RIVER_NEIGHBOUR_OFFSETS[side]
+		if not board.has(neighbour_pos):
+			continue
+		var neighbour = board[neighbour_pos]
+		if not neighbour.has("river_flow_direction"):
+			continue
+		var neighbour_flow: Vector2 = neighbour["river_flow_direction"]
+		if not neighbour_flow.is_zero_approx():
+			return neighbour_flow.normalized()
+	return Vector2.ZERO
+
+func _continue_river_flow_from_neighbour(grid_pos: Vector2i, connected_sides: Array[String], neighbour_flow: Vector2) -> Vector2:
+	for side in connected_sides:
+		var neighbour_pos: Vector2i = grid_pos + RIVER_NEIGHBOUR_OFFSETS[side]
+		if not board.has(neighbour_pos):
+			continue
+		var neighbour = board[neighbour_pos]
+		if not neighbour.has("river_flow_direction"):
+			continue
+		var side_direction: Vector2 = RIVER_DIRECTIONS[side]
+		var neighbour_direction: Vector2 = neighbour["river_flow_direction"]
+		if neighbour_direction.is_zero_approx():
+			continue
+		neighbour_direction = neighbour_direction.normalized()
+		var other_sides = connected_sides.duplicate()
+		other_sides.erase(side)
+		if other_sides.is_empty():
+			return neighbour_direction
+
+		var other_direction = _get_average_river_side_direction(other_sides)
+		if neighbour_direction.dot(-side_direction) > 0.25:
+			return other_direction - side_direction
+		if neighbour_direction.dot(side_direction) > 0.25:
+			return side_direction - other_direction
+
+	var default_flow = _get_default_river_flow(connected_sides)
+	if default_flow.dot(neighbour_flow) < 0.0:
+		return -default_flow
+	return default_flow
+
+func _get_default_river_flow(connected_sides: Array[String]) -> Vector2:
+	if connected_sides.size() == 1:
+		return RIVER_DIRECTIONS[connected_sides[0]]
+
+	if connected_sides.has("north") and connected_sides.has("south"):
+		return Vector2(0.0, 1.0)
+	if connected_sides.has("est") and connected_sides.has("west"):
+		return Vector2(1.0, 0.0)
+
+	var start_direction: Vector2 = RIVER_DIRECTIONS[connected_sides[0]]
+	var end_direction = _get_average_river_side_direction(connected_sides.slice(1))
+	return end_direction - start_direction
+
+func _get_average_river_side_direction(sides: Array[String]) -> Vector2:
+	var direction := Vector2.ZERO
+	for side in sides:
+		direction += RIVER_DIRECTIONS[side]
+	if direction.is_zero_approx():
+		return Vector2.ZERO
+	return direction / float(sides.size())
+
+func _apply_river_flow_direction(root: Node, flow_direction: Vector2) -> void:
+	if flow_direction.is_zero_approx():
+		return
+	_set_river_flow_direction_recursive(root, flow_direction.normalized())
+
+func _set_river_flow_direction_recursive(node: Node, flow_direction: Vector2) -> void:
+	if node is MeshInstance3D and node.name.begins_with("Water_F"):
+		var mesh_instance := node as MeshInstance3D
+		mesh_instance.set_instance_shader_parameter("river_flow_direction", flow_direction)
+
+	for child in node.get_children():
+		_set_river_flow_direction_recursive(child, flow_direction)
+
 func _needed_connection(near_pos: Vector2i, side_needed: String) -> int:
 	if not board.has(near_pos): 
 		_register_cell_with_ray(near_pos)
@@ -742,37 +1256,6 @@ func _connect_lamppost_wires(new_board_pos: Vector2i) -> void:
 							p_sx_your_best = closest_sx[i_t]
 							p_dx_your_best = closest_dx[i_t]
 
-	if best_closest_to_root == null:
-		for x in range(-ray_research, ray_research + 1):
-			for z in range(-ray_research, ray_research + 1):
-				if x == 0 and z == 0: continue
-				
-				var closest_pos = new_board_pos + Vector2i(x, z)
-				if board.has(closest_pos) and board[closest_pos].get("have_lamppost", false):
-					var closest_root = board[closest_pos]["node"]
-					var closest_info = board[closest_pos]["info"]
-
-					if not is_instance_valid(closest_root) or closest_root == new_root or closest_info == null: continue
-					
-					if closest_info is Node3D: closest_info.force_update_transform()
-					var closest_sx = _get_lampposts(closest_info, "sx")
-					var closest_dx = _get_lampposts(closest_info, "dx")
-					if closest_sx.is_empty() or closest_dx.is_empty(): continue
-					
-					for i_m in range(new_sx.size()):
-						for i_t in range(closest_sx.size()):
-							var c_mio = (new_sx[i_m].global_position + new_dx[i_m].global_position) / 2.0
-							var c_tuo = (closest_sx[i_t].global_position + closest_dx[i_t].global_position) / 2.0
-							var dist = c_mio.distance_to(c_tuo)
-							
-							if dist < best_distance:
-								best_distance = dist
-								best_closest_to_root = closest_root
-								p_sx_my_best = new_sx[i_m]
-								p_dx_my_best = new_dx[i_m]
-								p_sx_your_best = closest_sx[i_t]
-								p_dx_your_best = closest_dx[i_t]
-
 	var max_dist = chunk_size * lamppost_dist_factor
 	
 	if best_closest_to_root != null and best_distance < max_dist:
@@ -791,7 +1274,7 @@ func _connect_lamppost_wires(new_board_pos: Vector2i) -> void:
 		if not wire_connections.has(closest_id): wire_connections[closest_id] = 0
 		wire_connections[closest_id] += 1
 
-#draw lamppost
+#draw lamppost wires
 func _draw_parable(p1: Vector3, p2: Vector3, parent: Node3D) -> void:
 	var segments = 15
 	var lowering = 1.5 

core/biome_generator/biome_generator.tscn

@@ -2,7 +2,9 @@
 
 [ext_resource type="Script" uid="uid://ct2k25kslaxe5" path="res://core/biome_generator/biome_generator.gd" id="1_c7ilo"]
 [ext_resource type="Material" uid="uid://b8p1sjxisi522" path="res://core/biome_generator/wires.tres" id="2_w42pm"]
+[ext_resource type="Resource" path="res://core/biome_generator/railway_pool.tres" id="3_railway_pool"]
 
 [node name="biome_generator" type="Node3D" unique_id=1861369341]
 script = ExtResource("1_c7ilo")
+railway_pool = ExtResource("3_railway_pool")
 lamppost_wire_material = ExtResource("2_w42pm")

core/biome_generator/chunk_info.gd

@@ -5,6 +5,7 @@ class_name ChunkInfo
 
 @export_group("Set Piece Rules (Unique pieces)")
 @export var exclusive_biome: String = "" # Es: "Forest"
+@export_range(0, 5, 1) var uniqueness: int = 0 #0=common; 5=unique
 
 @export_group("Base exit")
 @export var north: bool = false

core/biome_generator/entities_pool.tres

@@ -0,0 +1,9 @@
+[gd_resource type="Resource" script_class="EntityPool" format=3 uid="uid://cmd6s6thq4f7r"]
+
+[ext_resource type="PackedScene" uid="uid://clx701xdwelgx" path="res://core/ai/agents/base/ai_base.tscn" id="1_0kfj8"]
+[ext_resource type="Script" uid="uid://53ryr0fsqiq7" path="res://core/biome_generator/entity_pool.gd" id="1_vccp2"]
+
+[resource]
+script = ExtResource("1_vccp2")
+name = "Entity Pool"
+available_entities = Array[PackedScene]([ExtResource("1_0kfj8")])

core/biome_generator/entity_pool.gd

@@ -0,0 +1,5 @@
+extends Resource
+class_name EntityPool
+
+@export var name: String = "New Entity Pool"
+@export var available_entities: Array[PackedScene] = []

core/biome_generator/entity_pool.gd.uid

@@ -0,0 +1 @@
+uid://53ryr0fsqiq7

core/biome_generator/entity_spawn_point.gd

@@ -0,0 +1,8 @@
+extends Marker3D
+class_name EntitySpawnPoint
+
+enum AllowedType { ANY, HUMANOID_ONLY, ANIMAL_ONLY }
+
+@export var allowed_type: AllowedType = AllowedType.ANY
+@export_range(0.0, 1.0, 0.01) var spawn_chance: float = 1.0
+@export var random_y_rotation: bool = true

core/biome_generator/entity_spawn_point.gd.uid

@@ -0,0 +1 @@
+uid://c5ercbqy7srx3

core/biome_generator/prop_info.gd

@@ -0,0 +1,5 @@
+extends Marker3D
+class_name PropInfo
+
+@export var available_props: Array[PackedScene]
+@export_range(0, 5, 1) var uniqueness: int = 0 #0=common; 5=unique

core/biome_generator/prop_info.gd.uid

@@ -0,0 +1 @@
+uid://dg6ngy4pmtsyc

core/biome_generator/rails.gd

@@ -1,31 +1,60 @@
 extends Path3D
 
 @export_group("Train")
-@export var train_speed: float = 6.0
-@export var is_inmotion: bool = true
-@export var train_model: PackedScene 
+##train speed
+@export var train_speed: float = 6.0	
+##if true the train is in motion
+@export var is_inmotion: bool = true	
+##the model for the locomotive
+@export var train_model: PackedScene 	
+##array of wagon scenes
+@export var wagon_pool: Resource		
+##if true the number of wagons is random from 1 to wagon_count
+@export var wagon_random_number: bool = true	
+##if wagon_random_number = true is used as max wagons
+@export_range(0, 32, 1, "or_greater") var wagon_count: int = 3 
+##the distance between two wagons
+@export var wagon_gap: float = 0.4 
+##the scale to calculate the distance of the bounds
+@export_range(0.1, 2.0, 0.05, "or_greater") var wagon_spacing_scale: float = 0.5 
+##override spacing using this value
+@export var wagon_spacing_override: float = 0.0
+##distance of the rail axes	
 @export var axes_distance: float = 3.0 
-@export var rail_distance: float = 1.2 
+##discance between rails
+@export var rail_distance: float = 1.2
+##current camera 
 @export var cameras: Node3D 
+##swing of the train during the ran
 @export_range(0.0, 1.0) var basic_swing: float = 0.1 
 
 @export_group("Rails Bulding")
+##distance between sleepers of the rails
 @export var sleepers_distance: float = 1.0
+##nodel for the sleeper of the rail
 @export var sleepers_model: PackedScene 
 
 @export_group("Manual Controls")
+##max speed
 @export var speed_max: float = 15.0
-@export var speed_min: float = -5.0 
+##min speed
+@export var speed_min: float = -5.0
+##acceleration 
 @export var manual_acceleration: float = 5.0 
 
 @export_group("Train Stops")
+##if true the train stop the ran on stops
 @export var enable_stops: bool = true
+##time of stop
 @export var stop_time: float = 4.0 
-@export var brake_distance: float = 15.0 
+##distance when the train start to brake
+@export var brake_distance: float = 15.0
+##restart time 
 @export var restart_time: float = 3.0 
+##scene for fireworks
 @export var fireworks_scene: PackedScene 
-
-var fireworks_colors: Array[Color] = [
+##array of colors for fireworks
+@export var fireworks_colors: Array[Color] = [
 	Color(1.0, 0.2, 0.2), # Rosso vivo
 	Color(0.2, 1.0, 0.2), # Verde lime
 	Color(0.3, 0.5, 1.0), # Blu cielo
@@ -48,9 +77,14 @@ var stop_multiply: float = 1.0
 var is_restarting: bool = false
 var tween_restart: Tween
 var environment_config: EnvironmentConfig
+var wagon_instances: Array[Node3D] = []
+var wagon_progress_offsets: Array[float] = []
 
 func _ready() -> void:
+	randomize()
+	
 	_cache_environment_config()
+	
 	if curve != null and curve.get_baked_length() > 0:
 		build_rails()
 		build_train()
@@ -153,6 +187,8 @@ func _snap_train_to_progress() -> void:
 		cameras.global_position = center_position
 		cameras.global_basis = train_instance.global_basis
 
+	_snap_wagons_to_progress(total_length)
+
 func build_rails() -> void:
 	var mat_wood = StandardMaterial3D.new()
 	mat_wood.albedo_color = Color(0.35, 0.2, 0.1) 
@@ -323,6 +359,8 @@ func train_move(delta: float) -> void:
 		if cameras:
 			cameras.global_position = center_position
 			cameras.global_basis = train_instance.global_basis
+
+		_snap_wagons_to_progress(total_length)
 				
 		var real_speed = abs(train_speed * stop_multiply)
 		var speed_factor = clamp(real_speed / max(speed_max, 0.001), 0.0, 1.0)
@@ -401,6 +439,34 @@ func build_train() -> void:
 	else:
 		build_default_train()
 
+	var wagons = wagon_count
+	if wagon_random_number:
+		wagons = randi_range(1, wagon_count)
+	build_train_wagons(wagons)
+
+func build_train_wagons(wagon_number: int) -> void:
+	_clear_train_wagons()
+	if wagon_number <= 0 or wagon_pool == null or not "available_wagons" in wagon_pool:
+		return
+	if wagon_pool.available_wagons.is_empty():
+		return
+
+	for i in range(wagon_number):
+		var wagon_scene: PackedScene = wagon_pool.available_wagons.pick_random()
+		if wagon_scene == null:
+			continue
+
+		var wagon: Node3D = wagon_scene.instantiate() as Node3D
+		if wagon == null:
+			push_warning("Wagon scene root must be a Node3D.")
+			continue
+
+		add_child(wagon)
+		wagon_instances.append(wagon)
+
+	_update_wagon_progress_offsets()
+	_snap_wagons_to_progress()
+
 func build_default_train() -> void:
 	train_instance = Node3D.new()
 	add_child(train_instance)
@@ -435,3 +501,118 @@ func build_default_train() -> void:
 	stack.material_override = mat_body
 	stack.position = Vector3(0, 1.2, 1.0)
 	train_instance.add_child(stack)
+
+func _clear_train_wagons() -> void:
+	for wagon in wagon_instances:
+		if is_instance_valid(wagon):
+			wagon.queue_free()
+	wagon_instances.clear()
+	wagon_progress_offsets.clear()
+
+func _update_wagon_progress_offsets() -> void:
+	wagon_progress_offsets.clear()
+	if train_instance == null or wagon_instances.is_empty():
+		return
+
+	var train_length: float = _get_vehicle_length(train_instance)
+	var previous_length: float = train_length
+	var accumulated_distance: float = 0.0
+
+	for wagon in wagon_instances:
+		var wagon_length: float = _get_vehicle_length(wagon)
+		accumulated_distance += _get_wagon_spacing(previous_length, wagon_length)
+		wagon_progress_offsets.append(accumulated_distance)
+		previous_length = wagon_length
+
+func _get_wagon_spacing(previous_length: float, wagon_length: float) -> float:
+	if wagon_spacing_override > 0.0:
+		return wagon_spacing_override + wagon_gap
+
+	var detected_spacing: float = previous_length * 0.5 + wagon_length * 0.5
+	return detected_spacing * wagon_spacing_scale + wagon_gap
+
+func _snap_wagons_to_progress(total_length: float = 0.0) -> void:
+	if curve == null or wagon_instances.is_empty():
+		return
+
+	if total_length <= 0.0:
+		total_length = curve.get_baked_length()
+	if total_length <= 0.0:
+		return
+
+	var direction: float = 1.0
+	if train_speed < 0.0:
+		direction = -1.0
+
+	for i in range(wagon_instances.size()):
+		var wagon: Node3D = wagon_instances[i]
+		if not is_instance_valid(wagon):
+			continue
+
+		var wagon_offset: float = float(i + 1) * 7.0
+		if i < wagon_progress_offsets.size():
+			wagon_offset = wagon_progress_offsets[i]
+
+		var wagon_progress: float = train_progress - direction * wagon_offset
+		_snap_vehicle_to_progress(wagon, wagon_progress, total_length)
+
+func _snap_vehicle_to_progress(vehicle: Node3D, progress: float, total_length: float) -> void:
+	var vehicle_progress: float = wrapf(progress, 0.0, total_length)
+	var center_position: Vector3 = to_global(curve.sample_baked(vehicle_progress, true))
+	var prog_forward: float = wrapf(vehicle_progress + 2.0, 0.0, total_length)
+	var forward_position: Vector3 = to_global(curve.sample_baked(prog_forward, true))
+
+	vehicle.global_position = center_position
+	if center_position.distance_to(forward_position) > 0.01:
+		vehicle.look_at(forward_position, Vector3.UP)
+		vehicle.rotate_y(PI)
+
+func _get_vehicle_length(vehicle: Node3D) -> float:
+	var bounds: AABB = _get_node_local_bounds(vehicle, vehicle)
+	if bounds.size == Vector3.ZERO:
+		return 7.0
+
+	return maxf(bounds.size.z, 0.1)
+
+func _get_node_local_bounds(root: Node3D, node: Node) -> AABB:
+	var result: AABB = AABB()
+	var has_bounds: bool = false
+
+	var mesh_instance := node as MeshInstance3D
+	if mesh_instance != null and mesh_instance.mesh != null:
+		var mesh_bounds: AABB = mesh_instance.get_aabb()
+		var mesh_transform: Transform3D = root.global_transform.affine_inverse() * mesh_instance.global_transform
+		for corner in _get_aabb_corners(mesh_bounds):
+			var local_point: Vector3 = mesh_transform * corner
+			if has_bounds:
+				result = result.expand(local_point)
+			else:
+				result = AABB(local_point, Vector3.ZERO)
+				has_bounds = true
+
+	for child in node.get_children():
+		var child_bounds: AABB = _get_node_local_bounds(root, child)
+		if child_bounds.size == Vector3.ZERO:
+			continue
+
+		if has_bounds:
+			result = result.merge(child_bounds)
+		else:
+			result = child_bounds
+			has_bounds = true
+
+	return result
+
+func _get_aabb_corners(bounds: AABB) -> Array[Vector3]:
+	var start: Vector3 = bounds.position
+	var end: Vector3 = bounds.end
+	return [
+		Vector3(start.x, start.y, start.z),
+		Vector3(end.x, start.y, start.z),
+		Vector3(start.x, end.y, start.z),
+		Vector3(end.x, end.y, start.z),
+		Vector3(start.x, start.y, end.z),
+		Vector3(end.x, start.y, end.z),
+		Vector3(start.x, end.y, end.z),
+		Vector3(end.x, end.y, end.z),
+	]

core/biome_generator/railway_pool.gd

@@ -0,0 +1,5 @@
+extends Resource
+class_name RailwayPool
+
+@export var name: String = "New Railway Pool"
+@export var available_railways: Array[PackedScene] = []

core/biome_generator/railway_pool.gd.uid

@@ -0,0 +1 @@
+uid://c374rv220mvh1

core/biome_generator/railway_pool.tres

@@ -0,0 +1,16 @@
+[gd_resource type="Resource" script_class="RailwayPool" format=3 uid="uid://nrm040srfjwo"]
+
+[ext_resource type="PackedScene" uid="uid://cl2ast2tk7ifw" path="res://tgcc/chunk/railway/scene/chunk_railway_curve.tscn" id="1_86h1y"]
+[ext_resource type="PackedScene" uid="uid://85l80b6jcdhr" path="res://tgcc/chunk/railway/scene/chunk_railway_curve_2.tscn" id="2_r0882"]
+[ext_resource type="PackedScene" uid="uid://cewdxvcpqb53f" path="res://tgcc/chunk/railway/scene/chunk_railway_station_doubleside.tscn" id="3_3auto"]
+[ext_resource type="PackedScene" uid="uid://d3pcshw2bioic" path="res://tgcc/chunk/railway/scene/chunk_railway_station_oneside.tscn" id="4_i1umq"]
+[ext_resource type="PackedScene" uid="uid://bqxpqhla2kogq" path="res://tgcc/chunk/railway/scene/chunk_railway_straight.tscn" id="5_x44at"]
+[ext_resource type="PackedScene" uid="uid://c3ub6rj0tlt6q" path="res://tgcc/chunk/railway/scene/chunk_railway_straight_2.tscn" id="6_vrrkw"]
+[ext_resource type="PackedScene" uid="uid://cqevecsd1cm1v" path="res://tgcc/chunk/railway/scene/chunk_railway_straight_3.tscn" id="7_l17bw"]
+[ext_resource type="PackedScene" uid="uid://f53hfrjaxkwa" path="res://tgcc/chunk/railway/scene/chunk_railway_straight_bridge.tscn" id="8_qcl5o"]
+[ext_resource type="Script" uid="uid://c374rv220mvh1" path="res://core/biome_generator/railway_pool.gd" id="9_8tdc7"]
+
+[resource]
+script = ExtResource("9_8tdc7")
+name = "Railway Pool"
+available_railways = Array[PackedScene]([ExtResource("1_86h1y"), ExtResource("2_r0882"), ExtResource("3_3auto"), ExtResource("4_i1umq"), ExtResource("5_x44at"), ExtResource("6_vrrkw"), ExtResource("7_l17bw"), ExtResource("8_qcl5o")])

core/biome_generator/wagon_pool.gd

@@ -0,0 +1,6 @@
+## Resource that lists the wagon scenes available for train composition.
+class_name WagonPool
+extends Resource
+
+@export var name: String = "New Wagon Pool"
+@export var available_wagons: Array[PackedScene] = []

core/biome_generator/wagon_pool.tres

@@ -0,0 +1,9 @@
+[gd_resource type="Resource" script_class="WagonPool" format=3 uid="uid://bjnytgwt8tmf4"]
+
+[ext_resource type="PackedScene" uid="uid://dvk3bytqn3m5s" path="res://tgcc/train/main_train.tscn" id="1_t6q5r"]
+[ext_resource type="Script" uid="uid://b6xk0gtn2pwa" path="res://core/biome_generator/wagon_pool.gd" id="2_x6bmc"]
+
+[resource]
+script = ExtResource("2_x6bmc")
+name = "Wagon Pool"
+available_wagons = Array[PackedScene]([ExtResource("1_t6q5r")])

core/daynight/environment_management.tscn

@@ -32,6 +32,7 @@ render_priority = 0
 shader = ExtResource("2_r4tfj")
 shader_parameter/use_red_as_alpha = true
 shader_parameter/fog_color = Color(0.8, 0.85, 0.9, 0.5)
+shader_parameter/fog_density = 0.25
 shader_parameter/scroll_speed = Vector2(0.05, 0.01)
 shader_parameter/texture_scale = Vector2(1, 1)
 shader_parameter/edge_softness_y = 0.2
@@ -66,12 +67,12 @@ grad_intensity_morning = 0.05
 grad_intensity_afternoon = 0.1
 grad_intensity_night = 0.5
 fog_color_morning = Color(0.7490196, 0.8509804, 0.9490196, 1)
-fog_color_afternoon = Color(0.9647059, 0.5882353, 0.7607843, 1)
-fog_color_night = Color(0.14901961, 0.101960786, 0.2509804, 1)
+fog_color_afternoon = Color(0.9823975, 0.8034449, 0.8778439, 1)
+fog_color_night = Color(0.38409987, 0.28720453, 0.5907528, 1)
 fog_density_morning = 0.01
 fog_density_afternoon = 0.02
 glow_morning = 0.4
-glow_night = 0.6
+glow_night = 0.8
 material_fog = SubResource("ShaderMaterial_b5atu")
 material_drops = SubResource("StandardMaterial3D_r4tfj")
 material_clouds = SubResource("ShaderMaterial_ruhh7")
@@ -261,6 +262,7 @@ shader = ExtResource("2_r4tfj")
 shader_parameter/fog_noise = ExtResource("11_tuauy")
 shader_parameter/use_red_as_alpha = true
 shader_parameter/fog_color = Color(0.8, 0.8509804, 0.9019608, 0.2509804)
+shader_parameter/fog_density = 0.25
 shader_parameter/scroll_speed = Vector2(0, 0.01)
 shader_parameter/texture_scale = Vector2(1, 1)
 shader_parameter/edge_softness_y = 0.16400000779

core/daynight/fog.gdshader

@@ -7,6 +7,7 @@ uniform bool use_red_as_alpha = true;
 
 group_uniforms Settings;
 uniform vec4 fog_color : source_color = vec4(0.8, 0.85, 0.9, 0.5);
+uniform float fog_density : hint_range(0.0, 1.0) = 0.25;
 uniform vec2 scroll_speed = vec2(0.05, 0.01);
 uniform vec2 texture_scale = vec2(1.0, 1.0);
 
@@ -36,5 +37,5 @@ void fragment() {
 	vec3 dark_fog = tinted_fog * 0.5;
 	ALBEDO = mix(tinted_fog, dark_fog, night_intensity);
 	
-	ALPHA = fog_color.a * noise_alpha * edge_mask;
-}
+	ALPHA = fog_color.a * fog_density * noise_alpha * edge_mask;
+}

core/daynight/water_river.gdshader

@@ -32,9 +32,6 @@ uniform float foam_roughness : hint_range(0.0, 1.0, 0.01) = 0.05;
 
 group_uniforms Wave;
 uniform sampler2D wave_texture;
-#if !USE_UNSHADED
-	uniform sampler2D wave_normal_texture;
-#endif
 uniform float wave_softness : hint_range(0.0, 10.0, 0.1) = 3.0;
 uniform vec2 wave_scale = vec2(0.2);
 uniform vec2 wave_layer_scale = vec2(1.5);
@@ -42,6 +39,7 @@ uniform float wave_highlight : hint_range(0.0, 1.0, 0.05) = 0.5;
 
 group_uniforms Wave.Motion;
 uniform vec2 wave_velocity = vec2(0.02);
+instance uniform vec2 river_flow_direction = vec2(0.0, 0.0);
 
 group_uniforms Foam;
 uniform sampler2D foam_texture;
@@ -72,6 +70,7 @@ uniform float foam_exponent = 2.0;
 
 uniform sampler2D screen_texture : hint_screen_texture;
 varying vec3 world_pos;
+varying vec2 world_wave_velocity;
 
 #if USE_CAUSTICS
 	vec3 sample_caustics(vec2 uv){
@@ -103,17 +102,47 @@ vec4 sample_wave(sampler2D tex, vec2 uv, vec2 velocity, float lod){
 	return wave2;
 }
 
+vec3 sample_wave_normal(vec2 uv, vec2 velocity, float center_wave) {
+	vec2 normal_offset = vec2(0.25, 0.0);
+	float wave_x = sample_wave(wave_texture, uv + normal_offset.xy, velocity, wave_softness).r;
+	float wave_z = sample_wave(wave_texture, uv + normal_offset.yx, velocity, wave_softness).r;
+	vec2 slope = vec2(center_wave - wave_x, center_wave - wave_z) * 0.35;
+	return normalize(vec3(slope, 1.0)) * 0.5 + 0.5;
+}
+
+vec2 get_world_wave_velocity(mat4 model_matrix) {
+	float velocity_length = length(wave_velocity);
+	if (velocity_length <= 0.0001) {
+		return vec2(0.0);
+	}
+
+	float flow_direction_length = length(river_flow_direction);
+	if (flow_direction_length > 0.0001) {
+		return (river_flow_direction / flow_direction_length) * velocity_length;
+	}
+
+	vec3 world_direction_3d = (model_matrix * vec4(0.0, 1.0, 0.0, 0.0)).xyz;
+	vec2 world_direction = world_direction_3d.xz;
+	float world_direction_length = length(world_direction);
+	if (world_direction_length <= 0.0001) {
+		return wave_velocity;
+	}
+
+	return (world_direction / world_direction_length) * velocity_length;
+}
+
 void vertex(){
 	world_pos = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
+	world_wave_velocity = get_world_wave_velocity(MODEL_MATRIX);
 	
 	#if USE_DISPLACEMENT
-		float wave = sample_wave(wave_texture, world_pos.xz, wave_velocity, wave_softness).r;
+		float wave = sample_wave(wave_texture, world_pos.xz, world_wave_velocity, wave_softness).r;
 		VERTEX.y += wave*displacement_amount;
 	#endif
 }
 
 void fragment() {
-	float wave = sample_wave(wave_texture, world_pos.xz, wave_velocity, wave_softness).r;
+	float wave = sample_wave(wave_texture, world_pos.xz, world_wave_velocity, wave_softness).r;
 	wave = smoothstep(0.0,1.0,wave);
 	
 	vec2 screen_uv = SCREEN_UV;
@@ -141,8 +170,8 @@ void fragment() {
 	
 	// Caustics
 	#if USE_CAUSTICS
-		vec3 caustics1 = sample_caustics(surface_uv + (TIME * -wave_velocity));
-		vec3 caustics2 = sample_caustics((surface_uv + (caustics1.r*0.05)) + (TIME * (wave_velocity*0.5)));
+		vec3 caustics1 = sample_caustics(surface_uv + (TIME * -world_wave_velocity));
+		vec3 caustics2 = sample_caustics((surface_uv + (caustics1.r*0.05)) + (TIME * (world_wave_velocity*0.5)));
 		vec3 caustics = caustics2 * (1.0 - depth);
 	#endif
 	
@@ -170,7 +199,7 @@ void fragment() {
 	color = mix(color, foam_color.rgb, foam);
 	
 	#if !USE_UNSHADED
-		vec3 wave_normal_map = sample_wave(wave_normal_texture, world_pos.xz, wave_velocity, wave_softness).rgb;
+		vec3 wave_normal_map = sample_wave_normal(world_pos.xz, world_wave_velocity, wave);
 		NORMAL_MAP = wave_normal_map;
 	#endif
 	

core/daynight/weather_controller.gd

@@ -263,8 +263,23 @@ func _process(delta: float) -> void:
 			env_shadow_mat.set_shader_parameter("cloud_density", current_cloud_density)
 		
 		if environment_config.material_fog:
+			environment_config.material_fog.set_shader_parameter("fog_color", final_fog_color)
+			environment_config.material_fog.set_shader_parameter("fog_density", clamp(final_fog_density * 25.0, 0.0, 1.0))
 			environment_config.material_fog.set_shader_parameter("night_intensity", night_val)
 			environment_config.material_fog.set_shader_parameter("sun_color", final_tint)
+		
+		if fog:
+			for child in fog.get_children():
+				var fog_mesh := child as MeshInstance3D
+				if fog_mesh == null:
+					continue
+				var fog_material := fog_mesh.get_surface_override_material(0) as ShaderMaterial
+				if fog_material == null:
+					continue
+				fog_material.set_shader_parameter("fog_color", final_fog_color)
+				fog_material.set_shader_parameter("fog_density", clamp(final_fog_density * 25.0, 0.0, 1.0))
+				fog_material.set_shader_parameter("night_intensity", night_val)
+				fog_material.set_shader_parameter("sun_color", final_tint)
 
 func create_sound_players():
 	rain_audio_player = AudioStreamPlayer.new()

core/game_menu/arrow_button.gd

@@ -0,0 +1,29 @@
+@tool
+extends Control
+
+class_name ArrowButton
+
+signal on_pressed
+
+@export var image: Texture:
+	set(value):
+		image = value
+		if is_inside_tree() and has_node("%Texture"):
+			$%Texture.texture = image
+
+@export var flip_h: bool = false:
+	set(value):
+		flip_h = value
+		if is_inside_tree() and has_node("%Texture"):
+			if $%Texture != null:
+				$%Texture.flip_h = flip_h
+
+func _ready():
+	if image != null and has_node("%Texture"):
+		$%Texture.texture = image
+		$%Texture.flip_h = flip_h
+		
+
+func _on_gui_input(event: InputEvent) -> void:
+	if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT and event.pressed:
+		on_pressed.emit()

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+mouse_filter = 2
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+metadata/_edit_use_anchors_ = true
+
+[node name="HooverTween" parent="." unique_id=2115829120 node_paths=PackedStringArray("detector_node", "visual_node") instance=ExtResource("3_hu4cn")]
+detector_node = NodePath("..")
+visual_node = NodePath("../Texture")
+
+[connection signal="gui_input" from="." to="." method="_on_gui_input"]

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