Android Open Source - 4est Render

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License

The source code is released under:

MIT License

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Java Source Code

package com.wordsaretoys.forest;
/*from  w w w. j a  v a  2 s.c o m*/
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import android.app.Activity;
import android.opengl.GLES20;
import android.opengl.GLSurfaceView;

import com.wordsaretoys.rise.utility.Needle;

/**
 * rendering object for gl surface
 * provides timer, gl & worker thread 
 */
public class Render implements GLSurfaceView.Renderer {

  // worker thread
  Worker worker;

  // model objects
  Debris debris;
  Skybox skybox;

  // ui/ai callback functor
  Runnable update;
  
  // frame timing
  long lastTime;
  int frames;
  
  /**
   * ctor
   */
  public Render() {
    worker = new Worker();
    
    update = new Runnable() {
      public void run() {
        Shared.glView.update();
      }
    };
  }
  
  @Override
  public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    GLES20.glClearDepthf(1.0f);
    GLES20.glDepthFunc(GLES20.GL_LEQUAL);
    GLES20.glEnable(GLES20.GL_DEPTH_TEST);
    GLES20.glClearColor(0.75f, 0.75f, 0.75f, 1);
    GLES20.glDisable(GLES20.GL_BLEND);
    
    // create anything that requires GL context
    skybox = new Skybox();
    // including objects need by others
    Shared.debris = debris = new Debris();
    
    worker.start();
  }

  @Override
  public void onSurfaceChanged(GL10 gl, int width, int height) {
    Shared.player.camera.size(width, height);
  }

  @Override
  public void onDrawFrame(GL10 gl) {

    // update game state and player kinematics
    Shared.rotors.update();
    Shared.player.update();

    // update any android UI elements
    ((Activity) Shared.context).runOnUiThread(update);

    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_CULL_FACE);
    GLES20.glCullFace(GLES20.GL_BACK);
    debris.draw();
    GLES20.glDisable(GLES20.GL_CULL_FACE);
    skybox.draw();
    
    // handle frame counting / timing
      long t = System.nanoTime();
    frames++;
    if (t - lastTime >= 1e9) {
      Shared.dbg.set("fps", frames);
      frames = 0;
      lastTime = t;
    }
  }
  
  /**
   * worker thread for background generation
   */
  class Worker extends Needle {

    public Worker() {
      super("builder", 100);
    }

    @Override
    public void run() {
      resume();
      while (inPump()) {
        debris.update();
      }
    }
    
  }
}

Java Source Code List