extends Node3D

@onready var grid = $Grid
@onready var camera =$Camera3D
@onready var highlighter = $Highlighter

var highlight = {}
var selection = {}

func _ready():
	highlight = reset_highlight()
	selection = reset_highlight()

func _process(delta):
	if Input.is_action_just_pressed("alt_command"):
		if highlight.type == 1:
			selection = highlight
		else:
			selection = reset_highlight()
	if Input.is_action_just_pressed("main_command"):
		if selection.type == 1:
			var path = Global.world.entities[selection.data.id].pathfinding(Vector2i(highlight.data.position.x, highlight.data.position.z))
			Global.world.entities[selection.data.id].follow_path(path)
func _unhandled_input(event):
	if event is InputEventMouseMotion:
		highlight = get_highlight()
		if highlight.type == 0:
			highlighter.transparency = 0.0
			var sprite_position = Vector3(round(highlight.data.position.x), ceil(highlight.data.position.y), round(highlight.data.position.z)) + Vector3(0, 0.01, 0)
			highlighter.position = sprite_position
		else:
			highlighter.transparency = 1.0

func get_highlight():
	var result = reset_highlight()
	var mouse_pos = get_viewport().get_mouse_position()
	var ray_length = 1000
	var from = camera.project_ray_origin(mouse_pos)
	var to = from + camera.project_ray_normal(mouse_pos) * ray_length
	var space = get_world_3d().direct_space_state
	var ray_query = PhysicsRayQueryParameters3D.new()
	ray_query.from = from
	ray_query.to = to
	ray_query.collide_with_areas = true
	var raycast_result = space.intersect_ray(ray_query)
	if raycast_result:
		if raycast_result.collider.name == "Grid":
			var position = grid.get_used_cells()[raycast_result.shape]
			result["type"] = 0
			result["data"] = Global.world.get_bloc(Vector2i(position.x, position.z))
		if raycast_result.collider.name == "Ocean":
			var position = grid.get_used_cells()[raycast_result.shape]
			result["type"] = 0
			result["data"] = Global.world.get_bloc(Vector2i(grid.local_to_map(raycast_result.position).x, grid.local_to_map(raycast_result.position).z))
		elif raycast_result.collider.get("id"):
			result["type"] = 1
			result["data"] = Global.world.entities[raycast_result.collider.id].get_data()
	return result

func reset_highlight():
	return {
		"type": -1,
		"data": null
	}