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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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// This file is part of Distorted. //
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// //
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// Distorted is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// Distorted is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.examples.listener;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Random;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.opengles.GL10;
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import org.distorted.examples.R;
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import org.distorted.library.Distorted;
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import org.distorted.library.DistortedBitmap;
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import org.distorted.library.EffectTypes;
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import org.distorted.library.Float2D;
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import org.distorted.library.Float3D;
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import org.distorted.library.Float4D;
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import org.distorted.library.EffectListener;
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import org.distorted.library.EffectMessage;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.opengl.GLES20;
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import android.opengl.GLSurfaceView;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class ListenerRenderer implements GLSurfaceView.Renderer,EffectListener
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{
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private GLSurfaceView mView;
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private DistortedBitmap water;
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private int bmpHeight, bmpWidth;
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private Random mRnd;
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private final int NUM_BUBBLES = 12;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public ListenerRenderer(GLSurfaceView v)
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{
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Distorted.setMaxVertex(NUM_BUBBLES);
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mView = v;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private long randomizeNewBubble()
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{
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int radius = (int)(( 0.10f + 0.70f*mRnd.nextFloat())*bmpWidth); // pop up a bubble of size (radius,height)
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int height = (int)((-0.10f + 0.20f*mRnd.nextFloat())*bmpWidth); //
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int pointx = mRnd.nextInt( (int)(0.8f*bmpWidth ))+ (int)(0.1f*bmpWidth ); // at a random place on the bitmap (but not near the edge)
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int pointy = mRnd.nextInt( (int)(0.8f*bmpHeight))+ (int)(0.1f*bmpHeight); //
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int duration = 1000 + mRnd.nextInt(3000); // for anytime from 3 to 4 seconds
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Float3D dp3d = new Float3D(0,0,height);
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Float2D dp2d = new Float2D(pointx,pointy);
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Float4D dr = new Float4D(0,0,radius,radius);
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return water.distort(dp3d, dr, dp2d, duration, 1.0f);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// the library sending messages to us
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public void effectMessage(final EffectMessage em, final long effectID, final int effectName, final long bitmapID, final String message)
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{
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switch(em)
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{
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case EFFECT_REMOVED: randomizeNewBubble();
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default : break;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void onDrawFrame(GL10 glUnused)
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{
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GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
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GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
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water.draw(System.currentTimeMillis());
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void onSurfaceChanged(GL10 glUnused, int width, int height)
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{
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water.abortEffects(EffectTypes.MATRIX);
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if( bmpHeight/bmpWidth > height/width )
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{
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int w = (height*bmpWidth)/bmpHeight;
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water.move((width-w)/2 ,0, 0);
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water.scale((float)height/bmpHeight);
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}
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else
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{
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int h = (width*bmpHeight)/bmpWidth;
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water.move(0 ,(height-h)/2, 0);
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water.scale((float)width/bmpWidth);
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}
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Distorted.onSurfaceChanged(width, height);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void onSurfaceCreated(GL10 glUnused, EGLConfig config)
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{
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InputStream is = mView.getContext().getResources().openRawResource(R.raw.water);
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Bitmap bitmap;
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try
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{
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bitmap = BitmapFactory.decodeStream(is);
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}
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finally
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{
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try
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{
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is.close();
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}
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catch(IOException e) { }
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}
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mRnd = new Random(0);
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bmpHeight = bitmap.getHeight();
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bmpWidth = bitmap.getWidth();
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water = new DistortedBitmap(bitmap, 50);
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water.addEventListener(this);
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for(int i=0; i<NUM_BUBBLES; i++) randomizeNewBubble();
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try
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{
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Distorted.onSurfaceCreated(mView.getContext());
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}
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catch(Exception ex)
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{
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android.util.Log.e("Renderer", ex.getMessage() );
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}
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}
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}
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