# mapped to iso_tileset.png

# https://youtu.be/dclc8w6JW7Y?si=QSu2dwSILyatO_oa

extends TileMap

const source_atlas_blue_pos = Vector2i(0, 0)
const source_atlas_red_pos = Vector2i(1, 0)
const source_atlas_green_pos = Vector2i(2, 0)
const source_atlas_orange_pos = Vector2i(6, 0)

const source_atlas = 0

#used by the "procgen"
const source_atlas_array = [
	source_atlas_blue_pos,
	source_atlas_green_pos,
	source_atlas_green_pos, # duplicate entry to tweak the generator
]

enum Layers {
	layer0 = 0,
	layer1 = 1,
	layer2 = 2,
}

func _ready() -> void:
	#for "procgen"
	var rng: RandomNumberGenerator = RandomNumberGenerator.new()
	rng.randomize()

	for i in range(10):
		for j in range(10):
			var rand_tile = rng.randf_range(0, source_atlas_array.size())
			set_cell(Layers.layer0, Vector2i(i + 30, j + 0), source_atlas, source_atlas_array[rand_tile], 0)

func _input(event) -> void:
	if event is InputEventMouseButton:
		if event.button_index == MOUSE_BUTTON_LEFT && event.is_pressed():
			var clicked_pos = local_to_map(to_local(event.position))
			
			#place a "house" prefab
			set_cell(Layers.layer1, Vector2i(clicked_pos.x - 1, clicked_pos.y - 1), source_atlas, source_atlas_red_pos, 0)
			set_cell(Layers.layer2, Vector2i(clicked_pos.x - 2, clicked_pos.y - 2), source_atlas, source_atlas_orange_pos, 0)