codename-routes/godot/world/StateApi.gd

extends Node

onready var server = $StateServer

export var xsize = 256
export var ysize = 256
export var zsize = 16

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

func _ready():
	server.generate_world(xsize, ysize, zsize)
	print(server.get_tile_at(0,0,0))

func respawn_tilemaps(amount: int):
	tilemaps = []
	for i in range(0, amount + 1):
		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 server.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))

func _on_StateServer_request_init():
	respawn_tilemaps(zsize - 1)

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