package com.mojang.blaze3d.pipeline;

import com.mojang.blaze3d.DontObfuscate;
import com.mojang.blaze3d.platform.DestFactor;
import com.mojang.blaze3d.platform.SourceFactor;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;

@Environment(EnvType.CLIENT)
@DontObfuscate
public record BlendFunction(SourceFactor sourceColor, DestFactor destColor, SourceFactor sourceAlpha, DestFactor destAlpha) {
	public static final BlendFunction LIGHTNING = new BlendFunction(SourceFactor.SRC_ALPHA, DestFactor.ONE);
	public static final BlendFunction GLINT = new BlendFunction(SourceFactor.SRC_COLOR, DestFactor.ONE, SourceFactor.ZERO, DestFactor.ONE);
	public static final BlendFunction OVERLAY = new BlendFunction(SourceFactor.SRC_ALPHA, DestFactor.ONE, SourceFactor.ONE, DestFactor.ZERO);
	public static final BlendFunction TRANSLUCENT = new BlendFunction(
		SourceFactor.SRC_ALPHA, DestFactor.ONE_MINUS_SRC_ALPHA, SourceFactor.ONE, DestFactor.ONE_MINUS_SRC_ALPHA
	);
	public static final BlendFunction TRANSLUCENT_PREMULTIPLIED_ALPHA = new BlendFunction(
		SourceFactor.ONE, DestFactor.ONE_MINUS_SRC_ALPHA, SourceFactor.ONE, DestFactor.ONE_MINUS_SRC_ALPHA
	);
	public static final BlendFunction ADDITIVE = new BlendFunction(SourceFactor.ONE, DestFactor.ONE);
	public static final BlendFunction ENTITY_OUTLINE_BLIT = new BlendFunction(
		SourceFactor.SRC_ALPHA, DestFactor.ONE_MINUS_SRC_ALPHA, SourceFactor.ZERO, DestFactor.ONE
	);
	public static final BlendFunction INVERT = new BlendFunction(
		SourceFactor.ONE_MINUS_DST_COLOR, DestFactor.ONE_MINUS_SRC_COLOR, SourceFactor.ONE, DestFactor.ZERO
	);

	public BlendFunction(SourceFactor sourceFactor, DestFactor destFactor) {
		this(sourceFactor, destFactor, sourceFactor, destFactor);
	}
}