Distorted Android

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted 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 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted 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 Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.examples.wind;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectRotate;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.VertexEffectDeform;

import org.distorted.library.effect.VertexEffectWave;

import org.distorted.library.main.Distorted;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.mesh.MeshCubes;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

///////////////////////////////////////////////////////////////////////////////////////////////////

class WindRenderer implements GLSurfaceView.Renderer

{

   private GLSurfaceView mView;

   private DistortedTexture mTexture;

   private DistortedScreen mScreen;

   private WindEffectsManager mManager;

   private WindGust mGust;

   private Static3D mMove, mScale;

   private int mObjWidth, mObjHeight;

///////////////////////////////////////////////////////////////////////////////////////////////////

   WindRenderer(GLSurfaceView view)

      { 

      mView = view;

      mTexture = new DistortedTexture(50,30);

      mManager = new WindEffectsManager(mTexture);

      mGust    = new WindGust();

      mScreen  = new DistortedScreen();

      DistortedEffects effects = new DistortedEffects();

      mScreen.attach(mTexture,effects,new MeshCubes(50,30,1));

      mObjWidth = mTexture.getWidth();

      mObjHeight= mTexture.getHeight();

      mMove = new Static3D(0,0,0);

      mScale= new Static3D(1,1,1);

      effects.apply( new MatrixEffectMove(mMove));

      effects.apply( new MatrixEffectScale(mScale));

      Static1D angle = new Static1D(-45);

      Static3D axis  = new Static3D(0,0,1);

      Static3D center= new Static3D(0,mObjHeight/2,0);

      effects.apply( new MatrixEffectRotate(angle, axis, center) );

      mManager.apply(effects);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

   void setWind(int wind)

      {

      mGust.setAverageWind(wind);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

   public void onDrawFrame(GL10 glUnused) 

      {

      long time = System.currentTimeMillis();

      if( mGust.isWindBlowingNow(time) ) mManager.increaseWind(time);

      else                               mManager.decreaseWind(time);

      mScreen.render(time);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

   public void onSurfaceChanged(GL10 glUnused, int width, int height) 

      {

      int min = width<height? width:height;

      float factor = ((float)min)/(mObjHeight + 1.4f*mObjWidth);

      mMove.set( factor*mObjHeight*0.58f +(width-min)/2, height - factor*mObjHeight*1.08f -(height-min)/2, 0 );

      mScale.set(factor,factor,factor);

      mScreen.resize(width, height);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      InputStream is = mView.getContext().getResources().openRawResource(R.raw.iceland);

      Bitmap bitmap;

      try

        {

        bitmap = BitmapFactory.decodeStream(is);

        }

      finally

        {

        try

          {

          is.close();

          }

        catch(IOException e) { }

        }

      mTexture.setTexture(bitmap);

      VertexEffectDeform.enable();

      VertexEffectWave.enable();

      try

        {

        Distorted.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

        android.util.Log.e("Wind", ex.getMessage() );

        }

      }

}