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.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.content.res.Resources;

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.VertexEffectScale;

import org.distorted.library.effect.VertexEffectWave;

import org.distorted.library.main.DistortedLibrary;

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, DistortedLibrary.LibraryUser

{

   private static final int X = 50;

   private static final int Y = 30;

   private static final int Z =  1;

   private final GLSurfaceView mView;

   private final Resources mResources;

   private final DistortedTexture mTexture;

   private final DistortedScreen mScreen;

   private final WindEffectsManager mManager;

   private final WindGust mGust;

   private final Static3D mMove, mScale;

   private final float mObjWidth, mObjHeight;

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

   WindRenderer(GLSurfaceView view)

      { 

      mView = view;

      mResources = view.getResources();

      MeshCubes cubes = new MeshCubes(X,Y,Z);

      DistortedEffects effects = new DistortedEffects();

      mTexture = new DistortedTexture();

      mManager = new WindEffectsManager(X,Y);

      mGust    = new WindGust();

      mScreen  = new DistortedScreen();

      mScreen.attach(mTexture,effects,cubes);

      mObjWidth = X;

      mObjHeight= Y;

      effects.apply( new VertexEffectScale( new Static3D(X,Y,Z) ) );

      mManager.apply(effects);

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

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

      Static1D angle = new Static1D(-45);

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

      Static3D center= new Static3D(-mObjWidth*0.5f,0,0);

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

      effects.apply( new MatrixEffectScale(mScale));

      effects.apply( new MatrixEffectMove(mMove));

      }

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

   void setWind(int wind)

      {

      mGust.setAverageWind(wind);

      }

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

   void pauseWind()

      {

      if( mGust   !=null ) mGust.pauseWind();

      if( mManager!=null ) mManager.pauseWind();

      }

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

   void resumeWind()

      {

      if( mGust   !=null ) mGust.resumeWind();

      if( mManager!=null ) mManager.resumeWind();

      }

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

   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 = Math.min(width,height);

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

      mMove.set( factor*mObjHeight*1.28f -min*0.5f, min*0.5f - factor*mObjHeight*0.58f, 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 ignored) { }

        }

      mTexture.setTexture(bitmap);

      VertexEffectScale.enable();

      VertexEffectDeform.enable();

      VertexEffectWave.enable();

      DistortedLibrary.onSurfaceCreated(this);

      }

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

    public void distortedException(Exception ex)

      {

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

      }

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

    public int openGlVersion()

      {

      Context context = mView.getContext();

      final ActivityManager activityManager     = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);

      final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();

      int glESversion = configurationInfo.reqGlEsVersion;

      int major = glESversion >> 16;

      int minor = glESversion & 0xff;

      return 100*major + 10*minor;

      }

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

    public InputStream localFile(int fileID)

      {

      return mResources.openRawResource(fileID);

      }

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

    public void logMessage(String message)

      {

      android.util.Log.e("Wind", message );

      }

}