Quad.java

/*
 * This file is part of SpoutcraftPlugin.
 *
 * Copyright (c) 2011 SpoutcraftDev <http://spoutcraft.org//>
 * SpoutcraftPlugin is licensed under the GNU Lesser General Public License.
 *
 * SpoutcraftPlugin is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * SpoutcraftPlugin is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.getspout.spoutapi.block.design;

public class Quad {
	private int index;
	private SubTexture texture;
	private Vertex[] vertexes = new Vertex[4];

	/**
	 * Creates a new quad with the following vertexes at the specified index
	 * @param index   of the quad
	 * @param texture Subtexture to use
	 * @param v1      first vertex
	 * @param v2      second vertex
	 * @param v3      third vertex
	 * @param v4      fourth vertex
	 */
	public Quad(int index, SubTexture texture, Vertex v1, Vertex v2, Vertex v3, Vertex v4) {
		this(index, texture);
		vertexes[0] = v1;
		vertexes[1] = v2;
		vertexes[2] = v3;
		vertexes[3] = v4;
	}

	/**
	 * Creates an empty quad at index based on the SubTexture
	 * @param index   of the quad
	 * @param texture
	 */
	public Quad(int index, SubTexture texture) {
		this.index = index;
		this.texture = texture;
	}

	/**
	 * Adds a vertex to the quad with the SubTexture properties of this quad
	 * @param index of the vertex
	 * @param x     value of the vertex
	 * @param y     value of the vertex
	 * @param z     value of the vertex
	 * @return this
	 */
	public Quad addVertex(int vertex, float x, float y, float z) {
		if (vertex < 0 || vertex > 3) {
			throw new IllegalArgumentException("Invalid vertex index: " + vertex);
		}
		vertexes[vertex] = new Vertex(vertex, index, x, y, z, texture);
		return this;
	}

	/**
	 * Adds a vertex to the quad
	 * @param vertex to add
	 * @return this
	 */
	public Quad addVertex(Vertex vertex) {
		vertexes[vertex.getIndex()] = vertex;

		return this;
	}

	/**
	 * Gets the vertex of the specified index
	 * @param index of the vertex
	 * @return the vertex
	 */
	public Vertex getVertex(int index) {
		if (index < 0 || index > 3) {
			throw new IllegalArgumentException("Invalid vertex index: " + index);
		}

		return vertexes[index];
	}

	public int getIndex() {
		return index;
	}
}