codename-routes/godot/world/Tilemaps.gd

extends Node

var Tilemap = preload("res://world/Tilemap.tscn")
var tilemaps = []

func _ready():
	StateServer.connect("changed_tiletypes", self, "_on_StateServer_changed_tiletypes")
	StateServer.connect("request_init", self, "_on_StateServer_request_init")

func respawn_tilemaps():
	tilemaps = []
	for i in range(0, StateServer.get_world_size().z):
		var map = Tilemap.instance()
		map.position.y -= i * map.cell_size.y
		map.z_index = i
		add_child(map)
		tilemaps.push_back(map)

func get_tile_at(pos: Vector3) -> String:
	return StateServer.get_tile_at(int(pos.x), int(pos.y), int(pos.z))
	
func update_tiles(tile_positions: PoolVector3Array):
	for tile in tile_positions:
		tilemaps[tile.z].set_tile_graphics(Vector2(tile.x, tile.y),
			get_tile_at(tile))
	for map in tilemaps:
		map.update_dirty_quadrants()

func _on_StateServer_request_init():
	call_deferred("respawn_tilemaps")

func _on_StateServer_changed_tiletypes(tile_positions: PoolVector3Array):
	call_deferred("update_tiles", tile_positions)