87 lines
1.9 KiB
GDScript
87 lines
1.9 KiB
GDScript
extends Unit
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class_name ControlledUnit
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signal moving_started
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signal moving_ended
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var anthill: Anthill
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var spawn_pos: Vector3
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var selected: bool = false
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var moving_to_target: bool = false
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var ground_plane: Plane = Plane(Vector3.UP, 0)
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@onready var camera: Camera3D = get_viewport().get_camera_3d()
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@onready var selection_sprite: Sprite3D = $SelectionSprite
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func _init() -> void:
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max_wander_distance = 2
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min_wander_interval = 0.5
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max_wander_interval = 30
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func _ready() -> void:
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assert(camera != null, "camera missing!")
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assert(selection_sprite != null, "selection_sprite missing!")
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set_selected(false)
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if spawn_pos != null and spawn_pos != Vector3.ZERO:
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global_position = spawn_pos
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super._ready()
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func _physics_process(delta: float) -> void:
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super._physics_process(delta)
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if moving_to_target and nav_agent.is_navigation_finished():
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moving_to_target = false
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moving_ended.emit()
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func _input(event: InputEvent) -> void:
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if not is_on_screen:
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return
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if event is InputEventMouseButton and selected:
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var button_event := event as InputEventMouseButton
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if (
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button_event.button_index == MOUSE_BUTTON_RIGHT
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and button_event.pressed
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):
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moving_to_target = true
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moving_started.emit()
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_set_target_click(button_event.position)
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func initialize(from: Anthill, pos: Vector3) -> ControlledUnit:
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anthill = from
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spawn_pos = pos
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return self
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static func get_cost() -> int:
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return 5
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func set_selected(on: bool) -> void:
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selected = on
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func _set_target_click(mouse_pos: Vector2) -> void:
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var click_position := _click_raycast(mouse_pos)
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if click_position == null:
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return
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nav_agent.set_target_position(click_position)
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func _click_raycast(mouse_pos: Vector2) -> Vector3:
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var from := camera.global_position
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var to := camera.project_ray_normal(mouse_pos)
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return ground_plane.intersects_ray(from, to)
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func _animate(delta: float) -> void:
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super._animate(delta)
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selection_sprite.visible = selected
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