@tool
extends Node2D


@export var color_1_texture : Texture
@export var color_2_texture : Texture
@export var outline_texture : Texture

@export_tool_button("Redraw", "Callable") var redraw_action = func(): create_image()

func _ready():
    create_image()

func create_image():
    
    var image := Image.create(TEXTURE_SIZE,TEXTURE_SIZE, false, Image.FORMAT_RGBA8)

    if color_2_texture:
        var color_2_image = color_2_texture.get_image()
        color_2_image.resize(TEXTURE_SIZE,TEXTURE_SIZE)
    
        image.blend_rect(
            modulated_image(color_2_image, COLOR_PALETTE.pick_random()),
            Rect2i(0,0,TEXTURE_SIZE,TEXTURE_SIZE),
            Vector2i.ZERO
        )
    if color_1_texture:
        var color_1_image = color_1_texture.get_image()
        color_1_image.resize(TEXTURE_SIZE,TEXTURE_SIZE)
        image.blend_rect(
            modulated_image(color_1_image, COLOR_PALETTE.pick_random()),
            Rect2i(0,0,TEXTURE_SIZE,TEXTURE_SIZE),
            Vector2i.ZERO
        )
    if outline_texture:
        var outline_image = outline_texture.get_image()
        outline_image.resize(TEXTURE_SIZE,TEXTURE_SIZE)
        image.blend_rect(outline_image, Rect2i(0,0,TEXTURE_SIZE,TEXTURE_SIZE),Vector2i.ZERO)

    ImageTexture.create_from_image(image)

func modulated_image(i : Image, color : Color) -> Image:
    var ret = i.duplicate()
    for x in i.get_size().x:
        for y in i.get_size().y:
            ret.set_pixel(x,y, i.get_pixel(x,y)*color)
    return ret