package com.mojang.blaze3d.platform;

import com.mojang.blaze3d.systems.RenderSystem;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import org.joml.Quaternionf;
import org.joml.Vector3f;

@Environment(EnvType.CLIENT)
public class Lighting {
	private static final Vector3f DIFFUSE_LIGHT_0 = new Vector3f(0.2F, 1.0F, -0.7F).normalize();
	private static final Vector3f DIFFUSE_LIGHT_1 = new Vector3f(-0.2F, 1.0F, 0.7F).normalize();
	private static final Vector3f NETHER_DIFFUSE_LIGHT_0 = new Vector3f(0.2F, 1.0F, -0.7F).normalize();
	private static final Vector3f NETHER_DIFFUSE_LIGHT_1 = new Vector3f(-0.2F, -1.0F, 0.7F).normalize();
	private static final Vector3f INVENTORY_DIFFUSE_LIGHT_0 = new Vector3f(0.2F, -1.0F, 1.0F).normalize();
	private static final Vector3f INVENTORY_DIFFUSE_LIGHT_1 = new Vector3f(-0.2F, -1.0F, 0.0F).normalize();

	public static void setupNetherLevel() {
		RenderSystem.setupLevelDiffuseLighting(NETHER_DIFFUSE_LIGHT_0, NETHER_DIFFUSE_LIGHT_1);
	}

	public static void setupLevel() {
		RenderSystem.setupLevelDiffuseLighting(DIFFUSE_LIGHT_0, DIFFUSE_LIGHT_1);
	}

	public static void setupForFlatItems() {
		RenderSystem.setupGuiFlatDiffuseLighting(DIFFUSE_LIGHT_0, DIFFUSE_LIGHT_1);
	}

	public static void setupFor3DItems() {
		RenderSystem.setupGui3DDiffuseLighting(DIFFUSE_LIGHT_0, DIFFUSE_LIGHT_1);
	}

	public static void setupForEntityInInventory() {
		RenderSystem.setShaderLights(INVENTORY_DIFFUSE_LIGHT_0, INVENTORY_DIFFUSE_LIGHT_1);
	}

	public static void setupForEntityInInventory(Quaternionf quaternion) {
		RenderSystem.setShaderLights(quaternion.transform(INVENTORY_DIFFUSE_LIGHT_0, new Vector3f()), quaternion.transform(INVENTORY_DIFFUSE_LIGHT_1, new Vector3f()));
	}
}