com.dgzt.core.shape.RectangleShape.java Source code

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Here is the source code for com.dgzt.core.shape.RectangleShape.java

Source

/*
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.dgzt.core.shape;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.glutils.ShaderProgram;

/**
 * The abstract shape.
 * 
 * @author Dgzt
 */
public class RectangleShape extends Shape {

    // --------------------------------------------------
    // ~ Private static members
    // --------------------------------------------------

    /** The number of vertices. */
    private static final int VERTICES_NUM = 4;

    // --------------------------------------------------
    // ~ Constructors
    // --------------------------------------------------

    /**
     * Constructor.
     * 
     * @param shader - The shader.
     * @param color - The color.
     */
    public RectangleShape(final ShaderProgram shader, final Color color) {
        super(shader, GL20.GL_TRIANGLES, VERTICES_NUM, new short[] { 0, 1, 2, 2, 3, 0 }, color);
    }

    // --------------------------------------------------
    // ~ Public methods
    // --------------------------------------------------

    /**
     * Resize the shape.
     * 
     * @param x - The x coordinate value.
     * @param y - The y coordinate value.
     * @param width - The width value.
     * @param height The height value.
     */
    protected void resize(final float x, final float y, final float width, final float height) {
        Gdx.app.log(RectangleShape.class.getName() + ".resize",
                "x: " + String.valueOf(x) + ", y: " + String.valueOf(y));

        final float[] vertices = new float[RectangleShape.VERTICES_NUM * Shape.POSITION_NUM];
        vertices[0] = x;
        vertices[1] = Gdx.graphics.getHeight() - y;
        vertices[2] = x + width;
        vertices[3] = Gdx.graphics.getHeight() - y;
        vertices[4] = x + width;
        vertices[5] = Gdx.graphics.getHeight() - y - height;
        vertices[6] = x;
        vertices[7] = Gdx.graphics.getHeight() - y - height;

        setVertices(vertices);
    }

    // --------------------------------------------------
    // ~ Getter methods
    // --------------------------------------------------

    /**
     * Return with x coordinate value.
     */
    public final float getX() {
        return getVertices()[0];
    }

    /**
     * Return with y coordinate value.
     */
    public final float getY() {
        return Gdx.graphics.getHeight() - getVertices()[1];
    }

    /**
     * Return with width value.
     */
    public final float getWidth() {
        final float[] vertices = getVertices();

        return vertices[2] - vertices[0];

    }
}