MultiblockSet.java

/**
 * This class was created by <Vazkii>. It's distributed as
 * part of the Botania Mod. Get the Source Code in github:
 * https://github.com/Vazkii/Botania
 * 
 * Botania is Open Source and distributed under the
 * Botania License: http://botaniamod.net/license.php
 * 
 * File Created @ [Jun 27, 2015, 7:31:58 PM (GMT)]
 */
package vazkii.botania.api.lexicon.multiblock;

import net.minecraft.entity.Entity;
import net.minecraft.util.MathHelper;

/**
 * A set of Multiblock objects for various rotations.
 */
public class MultiblockSet {

	private final Multiblock[] mbs;

	public MultiblockSet(Multiblock[] mbs) {
		this.mbs = mbs;
	}

	public MultiblockSet(Multiblock mb) {
		this(mb.createRotations());
	}

	public Multiblock getForEntity(Entity e) {
		return getForRotation(e.rotationYaw);
	}

	public Multiblock getForRotation(double rotation) {
		int facing = MathHelper.floor_double(rotation * 4.0 / 360.0 + 0.5) & 3;
		return getForIndex(facing);
	}

	public Multiblock getForIndex(int index) {
		return mbs[Math.min(mbs.length - 1, index)];
	}
}