Android Open Source - makipong Bola Actor

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From Project

Back to project page makipong.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Makipong, just another Pong clone//from  w w  w  . jav  a  2s. c o m
 * Copyright (C) 2013 Dani Rodrguez
 * 
 * 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 tk.makigas.makipong;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.scenes.scene2d.Actor;

/**
 * La bola es el objetivo al que hay que golpear.
 * 
 * @author danirod
 */
public class BolaActor extends Actor {
  
  /** Textura usada por la bola. */
  private Texture bolaTex;
  
  private Vector2 velocidad;

  public BolaActor() {
    bolaTex = Makipong.MANAGER.get("bola.png");
    
    // Ahora que tenemos la textura de la bola aprovechamos para cambiar
    // el tamao de este actor y hacer que coincida con el tamao de
    // la bola.
    setSize(bolaTex.getWidth(), bolaTex.getHeight());
    velocidad = new Vector2(90.0f, 90.0f);
  }
  
  @Override
  public void act(float delta) {
    super.act(delta);
    translate(velocidad.x * delta, velocidad.y * delta);
    comprobarBolaEnPantalla();
  }
  
  private void comprobarBolaEnPantalla() {
    if(getX() < 0) {
      setX(0);
      velocidad.x *= -1;
    } else if(getRight() > Gdx.graphics.getWidth()) {
      setX(Gdx.graphics.getWidth() - getWidth());
      velocidad.x *= -1;
    }
    
    if(getY() < 0) {
      setY(0);
      velocidad.y *= -1;
    } else if(getTop() > Gdx.graphics.getHeight()) {
      setY(Gdx.graphics.getHeight() - getHeight());
      velocidad.y *= -1;
    }
  }

  @Override
  public void draw(SpriteBatch batch, float parentAlpha) {
    batch.draw(bolaTex, getX(), getY());
  }
  
}

Java Source Code List

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