package net.minecraft.client.renderer.texture;

import com.mojang.blaze3d.platform.NativeImage;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.resources.metadata.animation.FrameSize;
import net.minecraft.resources.Identifier;

@Environment(EnvType.CLIENT)
public final class MissingTextureAtlasSprite {
	private static final int MISSING_IMAGE_WIDTH = 16;
	private static final int MISSING_IMAGE_HEIGHT = 16;
	private static final String MISSING_TEXTURE_NAME = "missingno";
	private static final Identifier MISSING_TEXTURE_LOCATION = Identifier.withDefaultNamespace("missingno");

	public static NativeImage generateMissingImage() {
		return generateMissingImage(16, 16);
	}

	public static NativeImage generateMissingImage(final int width, final int height) {
		NativeImage result = new NativeImage(width, height, false);
		int pink = -524040;

		for (int y = 0; y < height; y++) {
			for (int x = 0; x < width; x++) {
				if (y < height / 2 ^ x < width / 2) {
					result.setPixel(x, y, -524040);
				} else {
					result.setPixel(x, y, -16777216);
				}
			}
		}

		return result;
	}

	public static SpriteContents create() {
		NativeImage contents = generateMissingImage(16, 16);
		return new SpriteContents(MISSING_TEXTURE_LOCATION, new FrameSize(16, 16), contents);
	}

	public static Identifier getLocation() {
		return MISSING_TEXTURE_LOCATION;
	}
}