A PyxelEdit Tilemap Importer For GodotScript

PyxelEditImporter.gd

tool
extends EditorScript

const TILEMAP_JSON_PATH = "res://Data/Maps/GraveyardTilemap.json" # path to PyxelEdit exported json file
const TILESET_PATH = "res://Tiles/GraveyardTileset.tres" # path to Godot Tileset Object

func load_json(filepath):
	var file = File.new()
	file.open(filepath, file.READ)
	var file_text = file.get_as_text()
	var result_json = JSON.parse(file_text)
	file.close()
	if result_json.error == OK:
		return result_json.result
	else:
		print("Error reading JSON at " + filepath)
		return {}

func draw_tilemap_from_json(json):
	
	var tileset = load(TILESET_PATH)
	var mapMeta = {
		'num_layers': len(json.layers),
		'cell_size': Vector2(json.tilewidth, json.tileheight),
		'map_size': Vector2(json.tileswide, json.tileshigh)
	}
	print("Loading Tilemap: ")
	print(mapMeta)

	var maps = []
	var tilemapsParent = Node2D.new()
	tilemapsParent.set_name("PyxelEditTilemaps")
	get_scene().add_child(tilemapsParent)
	tilemapsParent.set_owner(get_scene())

	for l in json.layers:
		var tm = TileMap.new() # Instantiate tilemap node
		tm.tile_set = tileset
		tm.set_name(l.name) # name node after PyxelEdit Layer
		tm.cell_size = mapMeta.cell_size
		for pos in l.tiles:
			tm.set_cell(pos.x, pos.y, pos.tile)
		maps.append(tm)
	
	while len(maps) > 0:
		var tm = maps.pop_back()
		tilemapsParent.add_child(tm)
		tm.set_owner(get_scene())


# Called when the node enters the scene tree for the first time.
func _run():
	var json = load_json(TILEMAP_JSON_PATH)
	draw_tilemap_from_json(json)