cute-domino-game/DominoPlacer.gd

74 lines
2.0 KiB
GDScript

extends Node3D
@export_node_path(Camera3D) var camera_path
var domino: PackedScene
var ghost_domino: Node3D
var camera: Camera3D
var tool_active: bool = true
var raytrace_results: Dictionary = {}
func _ready():
domino = preload("res://Domino.tscn")
ghost_domino = preload("res://GhostDomino.tscn").instantiate()
camera = get_node(camera_path)
func _is_active():
return tool_active and !Input.is_action_pressed("cam_adjust")
func _physics_process(delta):
if ghost_domino.get_parent():
remove_child(ghost_domino)
if not _is_active():
raytrace_results = {}
return
var space_state = get_world_3d().direct_space_state
if space_state == null:
return
var mouse_position = get_viewport().get_mouse_position()
var mouse_3d_origin = camera.project_ray_origin(mouse_position)
var mouse_3d_normal = camera.project_ray_normal(mouse_position)
var query = PhysicsRayQueryParameters3D.new()
query.from = camera.position
query.to = mouse_3d_origin + mouse_3d_normal * 64
raytrace_results = space_state.intersect_ray(query)
if not raytrace_results.is_empty():
ghost_domino.position = raytrace_results.position + Vector3.UP * 0.5
if not ghost_domino.get_parent():
add_child(ghost_domino)
if raytrace_results.has("collider"):
var collider: CollisionObject3D = raytrace_results.collider
if self.is_ancestor_of(collider):
ghost_domino.global_transform = collider.global_transform
func _input(event):
if not _is_active():
return
if event.is_action_pressed("place_domino") and ghost_domino.get_parent():
var new_domino: RigidDynamicBody3D = domino.instantiate()
new_domino.transform = ghost_domino.transform
add_child(new_domino)
if event.is_action_pressed("domino_rotate_clockwise"):
ghost_domino.rotate_y(-PI / 12)
if event.is_action_pressed("domino_rotate_anticlockwise"):
ghost_domino.rotate_y(PI / 12)
if event.is_action_pressed("remove_domino"):
if raytrace_results.has("collider"):
var collider: Node = raytrace_results.collider
if self.is_ancestor_of(collider):
collider.get_parent().remove_child(collider)