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This commit was merged in pull request #17.
This commit is contained in:
m.sonaglioni
2026-05-13 15:50:44 +00:00
parent c796ea289d
commit c5232d1082
5 changed files with 145 additions and 31 deletions
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147
core/biome_generator/biome_generator.gd
View File

@@ -7,6 +7,8 @@ const CHUNK_TYPE_CURVED_TRACK: 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 MAX_CHUNK_UNIQUENESS: int = 5
const RAILWAY_SCENE_DIRECTORY: String = "res://tgcc/chunk/railway/scene"
const RIVER_SIDE_ORDER: Array[String] = ["north", "est", "south", "west"]
const RIVER_DIRECTIONS: Dictionary = {
@@ -23,33 +25,32 @@ const RIVER_NEIGHBOUR_OFFSETS: Dictionary = {
}
@export_group("Rails")
@export var rail_path: Path3D
@export var rail_path: Path3D #rail path
@export_group("Biomes")
@export var biome_list: Array[Biome]
@export var biome_list: Array[Biome] #list of scenes for the biome
@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 pending_generation_cells: Array[Vector2i] = []
var pending_cleanup_cells: Array[Vector2i] = []
var pending_wire_cells: Array[Vector2i] = []
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
@@ -58,7 +59,8 @@ 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()
@@ -69,8 +71,10 @@ func _ready() -> void:
altitude_generator.seed = randi()
altitude_generator.frequency = district_scale * 0.5
#fill cache with available chunk
_warm_chunk_candidate_cache()
_warm_rail_chunk_catalogue()
#set unique pieces
_update_set_pieces()
func _update_set_pieces() -> void:
@@ -125,16 +129,13 @@ 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 constant values the queue are evalutated 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
@@ -146,7 +147,6 @@ 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
@@ -157,6 +157,15 @@ 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 _warm_chunk_candidate_cache() -> void:
var unique_scenes: Dictionary = {}
@@ -239,6 +248,7 @@ 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
@@ -273,7 +283,6 @@ func _clear_pending_world_work() -> void:
pending_cleanup_cells.clear()
pending_wire_cells.clear()
pending_wire_lookup.clear()
pending_radar_update = false
func _collect_replaceable_rail_chunks(root: Node, result: Array[Node3D]) -> void:
if root == null:
@@ -470,6 +479,78 @@ 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 _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 _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 = marker.available_props.pick_random()
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 _register_cell_with_ray(grid_pos: Vector2i) -> bool:
if board.has(grid_pos): return true
@@ -517,6 +598,7 @@ 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:
@@ -530,6 +612,8 @@ 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",
@@ -538,7 +622,8 @@ 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
}
if have_lamppost:
@@ -579,6 +664,9 @@ 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"])
@@ -607,7 +695,14 @@ 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
@@ -618,11 +713,12 @@ 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)
var info_new = _get_cached_chunk_info(new_chunk, choise.scene)
@@ -641,18 +737,22 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
"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)
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,
@@ -668,7 +768,8 @@ func _add_compatible_biome(grid_pos: Vector2i) -> void:
"heights": safe_heights,
"node": backup,
"info": info_backup,
"have_lamppost": false
"have_lamppost": false,
"uniqueness": backup_uniqueness
}
func _calculate_river_flow_direction(grid_pos: Vector2i, river_connections: Dictionary) -> Vector2:

1
core/biome_generator/chunk_info.gd
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@@ -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

4
core/biome_generator/prop_info.gd Normal file
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@@ -0,0 +1,4 @@
extends Marker3D
class_name PropInfo
@export var available_props: Array[PackedScene]

1
core/biome_generator/prop_info.gd.uid Normal file
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@@ -0,0 +1 @@
uid://dg6ngy4pmtsyc

23
tgcc/chunk/countryside/scene/chunk_country_corner_01.tscn
View File

@@ -4,8 +4,10 @@
[ext_resource type="Script" uid="uid://dg2h4kbqe8j3m" path="res://core/biome_generator/chunk_info.gd" id="2_4d433"]
[ext_resource type="Material" uid="uid://blqelpjvdv23j" path="res://tgcc/chunk/material/grassflat_chunk.tres" id="2_ewqv4"]
[ext_resource type="Material" uid="uid://4xhpd6lust7w" path="res://tgcc/chunk/material/path_chunk.tres" id="3_4d433"]
[ext_resource type="Script" uid="uid://dg6ngy4pmtsyc" path="res://core/biome_generator/prop_info.gd" id="3_ckjyx"]
[ext_resource type="Material" uid="uid://ce0bdk3mx2xao" path="res://tgcc/chunk/material/water_chunk.tres" id="4_r06ll"]
[ext_resource type="Material" uid="uid://fnjxocmx16b7" path="res://tgcc/chunk/prop/grass/grass_chunk.tres" id="5_sddh0"]
[ext_resource type="PackedScene" uid="uid://d12t04rs47jq3" path="res://tgcc/chunk/prop/tree/tree_01.tscn" id="5_y2fk3"]
[ext_resource type="Material" uid="uid://jygb1hcokks5" path="res://tgcc/chunk/prop/grass/grass_bank.tres" id="6_ckjyx"]
[ext_resource type="Material" uid="uid://bjrb33qwp1p43" path="res://tgcc/chunk/prop/grass/grass_chunk_weeds.tres" id="7_y2fk3"]
[ext_resource type="Material" uid="uid://0x17mj2v807r" path="res://tgcc/chunk/prop/grass/grass_chunk_weeds2.tres" id="8_vtfy7"]
@@ -52,22 +54,27 @@ have_lamppost = true
connection_left = [NodePath("PaloLuce/sx")]
connection_right = [NodePath("PaloLuce/dx")]
[node name="Argini_001" parent="." index="0" unique_id=439223507]
[node name="Prop1" type="Marker3D" parent="." index="0" unique_id=1846012620]
transform = Transform3D(-4.371139e-08, 0, -1, 0, 1, 0, 1, 0, -4.371139e-08, 2.1078086, 4.588761, 4.5396976)
script = ExtResource("3_ckjyx")
available_props = Array[PackedScene]([ExtResource("10_r06ll"), ExtResource("5_y2fk3")])
[node name="Argini_001" parent="." index="1" unique_id=1474838784]
surface_material_override/0 = ExtResource("2_ewqv4")
[node name="Chunk_005" parent="." index="1" unique_id=1955568282]
[node name="Chunk_005" parent="." index="2" unique_id=844192036]
surface_material_override/0 = ExtResource("2_ewqv4")
[node name="Chunk_036" parent="." index="2" unique_id=1808067169 groups=["weather_node"]]
[node name="Chunk_036" parent="." index="3" unique_id=1584066508 groups=["weather_node"]]
surface_material_override/0 = ExtResource("3_4d433")
[node name="Chunk_037" parent="." index="3" unique_id=1338393481 groups=["weather_node"]]
[node name="Chunk_037" parent="." index="4" unique_id=1100757609 groups=["weather_node"]]
surface_material_override/0 = ExtResource("3_4d433")
[node name="Water_003" parent="." index="4" unique_id=1175879696]
[node name="Water_003" parent="." index="5" unique_id=1047599796]
surface_material_override/0 = ExtResource("4_r06ll")
[node name="grass" type="Node3D" parent="." index="5" unique_id=924191951 groups=["weather_vegetables_node", "wind_node"]]
[node name="grass" type="Node3D" parent="." index="6" unique_id=924191951 groups=["weather_vegetables_node", "wind_node"]]
[node name="grass_plane" type="MeshInstance3D" parent="grass" index="0" unique_id=1701437548]
transform = Transform3D(1, 0, 0, 0, -4.371139e-08, -1, 0, 1, -4.371139e-08, 0, 0, 0)
@@ -98,7 +105,7 @@ material_override = ExtResource("8_vtfy7")
cast_shadow = 0
multimesh = SubResource("MultiMesh_sddh0")
[node name="rice" type="Node3D" parent="." index="6" unique_id=318026795 groups=["weather_vegetables_node", "wind_node"]]
[node name="rice" type="Node3D" parent="." index="7" unique_id=318026795 groups=["weather_vegetables_node", "wind_node"]]
transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -86.08408, 0, 0)
[node name="rice_plane61" type="MeshInstance3D" parent="rice" index="0" unique_id=1796062490]
@@ -911,7 +918,7 @@ cast_shadow = 0
mesh = SubResource("PlaneMesh_oviqx")
surface_material_override/0 = ExtResource("7_y2fk3")
[node name="PaloLuce" parent="." index="7" unique_id=1607500596 instance=ExtResource("10_r06ll")]
[node name="PaloLuce" parent="." index="8" unique_id=1607500596 instance=ExtResource("10_r06ll")]
transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 1.4629593, 0, -1.4456635)
[editable path="PaloLuce"]