class_name Chunk

var tiles : Array[int]
var position : Vector2i

var items : Dictionary[Vector2i, Item]
var arrows : Dictionary[Vector2i, Arrow]

func _init(position : Vector2i) -> void:
	self.position = position
	
	var noise : FastNoiseLite = FastNoiseLite.new()
	noise.noise_type = FastNoiseLite.TYPE_PERLIN
	noise.fractal_type = FastNoiseLite.FRACTAL_FBM
	
	noise.seed = Globals.seed
	noise.frequency = 0.025

	noise.fractal_octaves = 5
	noise.fractal_lacunarity = 2
	noise.fractal_gain = 0.5
	
	var x : int = 0
	var y : int = 0
	
	var offset : Vector2i = position * TileGlobals.chunk_size

	for i in range(TileGlobals.chunk_size ** 2):
		if x >= TileGlobals.chunk_size:
			x = 0
			y += 1
		
		var point_value : float = remap(noise.get_noise_2d(x+offset.x,y+offset.y), -1, 1, 0, 1)
		var tile_id : int = TileGlobals.chunk_gradient.sample(point_value).r8
		
		tiles.append(tile_id)
		
		x += 1

func get_tile(pos : Vector2i):
	return tiles[pos.y * TileGlobals.chunk_size + pos.x]