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.olimpic;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

import org.distorted.examples.R;

import org.distorted.library.effect.FragmentEffectChroma;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectRotate;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.mesh.MeshQuad;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static1D;

import org.distorted.library.main.DistortedTexture;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

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

class OlimpicRenderer implements GLSurfaceView.Renderer 

{

   private static final int LEAF_SIZE = 100;

   private static final int NUM_CIRCLES = 5;

   static final int NUM_LEAVES  = 8;

   private GLSurfaceView mView;

   private DistortedNode mRoot;

   private DistortedTexture mLeaf;

   private DistortedScreen mScreen;

   private MeshQuad mLeafMesh;

   private int mScreenW, mScreenH;

   private int mPrevRendered, mCurrRendered;

   private Static3D mScale;

   private DistortedNode[] mCircleNode = new DistortedNode[NUM_CIRCLES];

   private DistortedEffects[] mEffects = new DistortedEffects[NUM_LEAVES];

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

   void pressed(int color, int number, boolean checked)

     {

     if( color>=0 && color<NUM_CIRCLES )

       {

       if( number==0 )

         {

         if( checked ) mRoot.attach(mCircleNode[color]);

         else          mRoot.detach(mCircleNode[color]);

         }

       else if( number>0 && number<=NUM_LEAVES )

         {

         if( checked ) mCircleNode[color].attach( mLeaf, mEffects[number-1], mLeafMesh);

         else          mCircleNode[color].detach(mEffects[number-1]);

         }

       }

     }

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

   OlimpicRenderer(GLSurfaceView v)

      {     

      mView = v;

      mPrevRendered = -1;

      mCurrRendered = -1;

      mScreenW = 9*LEAF_SIZE;

      mScreenH = 9*LEAF_SIZE;

      mLeaf = new DistortedTexture();

      DistortedTexture surface = new DistortedTexture();

      mLeafMesh = new MeshQuad();

      mLeafMesh.setStretch(LEAF_SIZE,LEAF_SIZE,0);

      MeshQuad circleMesh = new MeshQuad();

      circleMesh.setStretch(3*LEAF_SIZE,3*LEAF_SIZE,0);

      MeshQuad rootMesh = new MeshQuad();

      rootMesh.setStretch(mScreenW,mScreenH,0);

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

      DistortedEffects rootEffects = new DistortedEffects();

      rootEffects.apply(new MatrixEffectScale(mScale));

      mRoot = new DistortedNode(new DistortedTexture(), rootEffects, rootMesh);

      Dynamic1D rot = new Dynamic1D(5000,0.0f);

      rot.setMode(Dynamic1D.MODE_JUMP);

      rot.add(new Static1D(  0));

      rot.add(new Static1D(360));

      int[] colors    = new int[] {0,0,1,  0,0,0,  1,0,0,  1,1,0,  0,1,0}; // blue, black, red, yellow, green  

      int[] positions = new int[] {-3*LEAF_SIZE  ,   LEAF_SIZE  ,

                                              0  ,   LEAF_SIZE  ,

                                    3*LEAF_SIZE  ,   LEAF_SIZE  ,

                                   -3*LEAF_SIZE/2,-3*LEAF_SIZE/2,

                                    3*LEAF_SIZE/2,-3*LEAF_SIZE/2 };

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

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

      Static3D moveVector = new Static3D(-LEAF_SIZE,0,0);

      for(int j=0; j<NUM_LEAVES; j++)

        {

        mEffects[j] = new DistortedEffects();

        mEffects[j].apply(new MatrixEffectMove(moveVector));

        mEffects[j].apply( new MatrixEffectRotate(new Static1D(j*(360/NUM_LEAVES)), axis, center) );

        }

      for(int i=0; i<NUM_CIRCLES; i++)

        {

        DistortedEffects effects = new DistortedEffects();

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

        effects.apply( new MatrixEffectMove(new Static3D(positions[2*i], positions[2*i+1], 0)) );

        effects.apply( new FragmentEffectChroma(new Static1D(0.5f), new Static3D(colors[3*i],colors[3*i+1], colors[3*i+2])) );

        mCircleNode[i] = new DistortedNode( surface, effects, circleMesh);

        mRoot.attach(mCircleNode[i]);

        for(int j=0; j<NUM_LEAVES; j++) mCircleNode[i].attach(mLeaf, mEffects[j], mLeafMesh);

        }

      mScreen = new DistortedScreen();

      mScreen.attach(mRoot);

      }

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

   public void onDrawFrame(GL10 glUnused)

     {

     mCurrRendered = mScreen.render(System.currentTimeMillis());

     if( mCurrRendered!=mPrevRendered )

       {

       mPrevRendered = mCurrRendered;

       final OlimpicActivity act = (OlimpicActivity)mView.getContext();

       act.runOnUiThread(new Runnable()

          {

          public void run()

            {

           act.setText("rendered: "+mCurrRendered+" objects");

           }

          });

       }

     }

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

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

     {

     float horiRatio = (float)width / mScreenW;

     float vertRatio = (float)height/ mScreenH;

     float factor    = horiRatio > vertRatio ? vertRatio : horiRatio;

     mScale.set(factor,factor,factor);

     mScreen.resize(width, height);

     }

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

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

     {

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

     Bitmap leaf;

     try

       {

       leaf = BitmapFactory.decodeStream(is);

       }

     finally

       {

       try

         {

         is.close();

         }

       catch(IOException e) { }

       }

     mLeaf.setTexture(leaf);

     FragmentEffectChroma.enable();

     try

       {

       DistortedLibrary.onCreate(mView.getContext());

       }

     catch(Exception ex)

       {

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

       }

     }

}