add human fbx and idle/walking animation

core/ai/agents/base/ai_base.gd

@@ -11,12 +11,12 @@ var _enable_state_machine: bool = true
 	get:
 		return _enable_state_machine
 
+@export var anim_player: AnimationPlayer
 
 @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 +41,11 @@ 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:
@@ -49,3 +54,15 @@ func navigate_to_random_point() -> void:
 	var target_point_in_space = global_position + Vector3(randf_range(-1, 1), 0, randf_range(-1, 1)).normalized() * randf_range(0, patrol_radius)
 	var closest_valid_point = NavigationServer3D.map_get_closest_point(nav_map_rid, target_point_in_space)
 	nav_agent.target_position = closest_valid_point
+	
+func run_walking_animation() -> void:
+	if anim_player and anim_player.has_animation("custom/walking"):
+		var anim = anim_player.get_animation("custom/walking")
+		anim.loop_mode = Animation.LOOP_LINEAR
+		anim_player.play("custom/walking")
+
+func run_idle_animation() -> void:
+	if anim_player and anim_player.has_animation("custom/idle"):
+		var anim = anim_player.get_animation("custom/idle")
+		anim.loop_mode = Animation.LOOP_LINEAR
+		anim_player.play("custom/idle")

core/ai/agents/base/idle_state.gd

@@ -2,11 +2,13 @@ extends State
 
 const PATROL_STATE_ID: StringName = &"patrol"
 
+@onready var agent: AIBase = owner
 @export var wait_time: float = 3.0
 
 var runtime_timer: Timer
 
 func enter() -> void:
+	agent.run_idle_animation()
 	runtime_timer = Timer.new()
 	runtime_timer.name = "IdleTimer"
 	add_child(runtime_timer)

core/ai/agents/base/patrol_state.gd

@@ -6,6 +6,7 @@ const IDLE_STATE_ID: StringName = &"idle"
 
 func enter() -> void:
 	agent.navigate_to_random_point()
+	agent.run_walking_animation()
 
 func physics_update(_delta)  -> void:
 	if agent.nav_agent.is_navigation_finished():