Init

scripts/click_manager.gd

@@ -0,0 +1,97 @@
+extends Node
+
+signal camera_move_requested(destination: Transform3D)
+signal back_requested
+
+var _hovered: Clickable = null
+
+
+func get_camera() -> Camera3D:
+	return get_viewport().get_camera_3d()
+
+
+func _ready() -> void:
+	back_requested.connect(_on_back_requested)
+
+
+func _process(_delta: float) -> void:
+	_update_hover(get_viewport().get_mouse_position())
+
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event is InputEventMouseButton:
+		if event.button_index == MOUSE_BUTTON_LEFT and event.pressed:
+			_raycast_click(get_viewport().get_mouse_position())
+
+	if event is InputEventKey and event.pressed and not event.echo:
+		if event.keycode == KEY_ESCAPE or event.keycode == KEY_BACKSPACE:
+			request_back()
+
+
+func _on_back_requested() -> void:
+	var cam = get_camera()
+	if cam and cam.has_method("go_back"):
+		cam.go_back()
+
+
+func request_back() -> void:
+	back_requested.emit()
+
+
+func _update_hover(screen_pos: Vector2) -> void:
+	var clickable = _raycast_find_clickable(screen_pos)
+
+	if clickable != _hovered:
+		_hovered = clickable
+
+		if _hovered:
+			CursorManager.set_cursor(_hovered.cursor_hint)
+		else:
+			CursorManager.reset()
+
+
+func _raycast_click(screen_pos: Vector2) -> void:
+	var clickable = _raycast_find_clickable(screen_pos)
+
+	if clickable:
+		clickable.on_clicked(_raycast_position(screen_pos))
+
+
+func _raycast_find_clickable(screen_pos: Vector2) -> Clickable:
+	var result = _raycast(screen_pos)
+	if result.is_empty():
+		return null
+
+	return _find_clickable_in(result.collider)
+
+
+func _raycast_position(screen_pos: Vector2) -> Vector3:
+	var result = _raycast(screen_pos)
+	return result.get("position", Vector3.ZERO)
+
+
+func _raycast(screen_pos: Vector2) -> Dictionary:
+	var camera = get_camera()
+	if not camera:
+		return {}
+
+	var space = camera.get_world_3d().direct_space_state
+	var origin = camera.project_ray_origin(screen_pos)
+	var end = origin + camera.project_ray_normal(screen_pos) * 100.0
+
+	var query = PhysicsRayQueryParameters3D.create(origin, end)
+	return space.intersect_ray(query)
+
+
+func _find_clickable_in(node: Node) -> Clickable:
+	while node:
+		var c = node.find_child("Clickable", false, false)
+		if c:
+			return c as Clickable
+		node = node.get_parent()
+
+	return null
+
+
+func request_camera_move(destination: Transform3D) -> void:
+	camera_move_requested.emit(destination)