Android Open Source - Freebloks-Android Stone Fade Effect

• Back to Graphics/3d  ↑

From Project

Back to project page Freebloks-Android.

License

The source code is released under:

GNU General Public License

Java Source Code

package de.saschahlusiak.freebloks.view.effects;
//from   ww  w.j a  va 2 s  . co  m
import javax.microedition.khronos.opengles.GL10;

import de.saschahlusiak.freebloks.model.Stone;
import de.saschahlusiak.freebloks.view.BoardRenderer;
import de.saschahlusiak.freebloks.view.model.ViewModel;

public class StoneFadeEffect extends AbsStoneEffect {
  private static final float TIME_PER_PERIOD = 1.1f;
  private static final float ALPHA_MIN = 0.15f;
  private static final float ALPHA_MAX = 1.0f;

  private float NUMBER_OF_PERIODS;

  public StoneFadeEffect(ViewModel model, Stone stone, int color, int x, int y, float cycles) {
    super(model, stone, color, x, y);
    this.NUMBER_OF_PERIODS = cycles;
  }

  @Override
  public boolean isDone() {
    return time > TIME_PER_PERIOD * NUMBER_OF_PERIODS;
  }

  @Override
  public void render(GL10 gl, BoardRenderer renderer) {
    float alpha;
    /* every TIME_PER_PERIOD needs to match 2 * PI */
    alpha = (float)Math.cos(time / TIME_PER_PERIOD * (float)Math.PI * 2.0f) / 2.0f + 0.5f;
    alpha = ALPHA_MIN + alpha * (ALPHA_MAX - ALPHA_MIN);

    gl.glPushMatrix();

      gl.glTranslatef(
          -BoardRenderer.stone_size * (float)(model.spiel.m_field_size_x - 1) + BoardRenderer.stone_size * 2.0f * (float)x,
          0,
          -BoardRenderer.stone_size * (float)(model.spiel.m_field_size_y - 1) + BoardRenderer.stone_size * 2.0f * (float)y);

    renderer.renderPlayerStone(gl, color, stone, alpha * BoardRenderer.DEFAULT_ALPHA);
    gl.glPopMatrix();
  }
}

Java Source Code List

• Back to Graphics/3d  ↑