extends Node2D

# texture_from_color: Generated an image texture from a color, to be used as colored icons for the
# material list from the material color
func texture_from_color(c: Color, size: Vector2i = Vector2i(16, 16)) -> Texture2D:
	var img := Image.create(size.x, size.y, false, Image.FORMAT_RGBA8)
	img.fill(c)
	return ImageTexture.create_from_image(img)

func _ready() -> void:
	# Fill the list of Materials
	var id = 0
	for material in $World.get_materials():
		$Control/MaterialList.add_item(material.name, texture_from_color(material.color), true)
		if material.name == "Bedrock":
			$Control/MaterialList.select(id)
		id += 1

func _unhandled_input(event) -> void:
	if event is InputEventMouseButton:
		if event.pressed == false and event.canceled == false:
			$World.set_material_at_position(event.position.y, event.position.x, $Control/MaterialList.get_item_text($Control/MaterialList.get_selected_items()[0]))
	
	if event is InputEventMouseMotion:
		# Holding left button
		if event.button_mask == 1:
			$World.set_material_at_position(event.position.y, event.position.x, $Control/MaterialList.get_item_text($Control/MaterialList.get_selected_items()[0]))


func _on_refresh_button_pressed() -> void:
	Game.material_just_changed.emit()