CodeChickenCore/codechicken/lib/render/TextureFX.java

package codechicken.lib.render;

import codechicken.lib.render.SpriteSheetManager.SpriteSheet;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.Minecraft;

@SideOnly(Side.CLIENT)
public class TextureFX
{
    public int[] imageData;
    public int tileSizeBase = 16;
    public int tileSizeSquare = 256;
    public int tileSizeMask = 15;
    public int tileSizeSquareMask = 255;

    public boolean anaglyphEnabled;
    public TextureSpecial texture;

    public TextureFX(int spriteIndex, SpriteSheet sheet) {
        texture = sheet.bindTextureFX(spriteIndex, this);
    }

    public TextureFX(int size, String name) {
        texture = new TextureSpecial(name).blank(size).selfRegister().addTextureFX(this);
    }

    public TextureFX setAtlas(int index) {
        texture.atlasIndex = index;
        return this;
    }

    public void setup() {
        imageData = new int[tileSizeSquare];
    }

    public void onTextureDimensionsUpdate(int width, int height) {
        if (width != height)
            throw new IllegalArgumentException("Non-Square textureFX not supported (" + width + ":" + height + ")");

        tileSizeBase = width;
        tileSizeSquare = tileSizeBase * tileSizeBase;
        tileSizeMask = tileSizeBase - 1;
        tileSizeSquareMask = tileSizeSquare - 1;
        setup();
    }

    public void update() {
        anaglyphEnabled = Minecraft.getMinecraft().gameSettings.anaglyph;
        onTick();
    }

    public void onTick() {
    }

    public boolean changed() {
        return true;
    }
}