Distorted Android

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// 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.DistortedEffects;

import org.distorted.library.DistortedFramebuffer;

import org.distorted.library.DistortedScreen;

import org.distorted.library.DistortedTree;

import org.distorted.library.EffectTypes;

import org.distorted.library.MeshFlat;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static1D;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedTexture;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLES30;

import android.opengl.GLSurfaceView;

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

class OlimpicRenderer implements GLSurfaceView.Renderer 

{

   private static final int LEAF_SIZE = 100;

   private static final int NUM_CIRCLES = 5;

   private static final int NUM_LEAVES  = 8;

   private GLSurfaceView mView;

   private DistortedTree mRoot;

   private DistortedTexture mLeaf;

   private DistortedScreen mScreen;

   private int mScreenW, mScreenH;

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

   OlimpicRenderer(GLSurfaceView v)

      {     

      mView = v;

      mLeaf = new DistortedTexture(LEAF_SIZE,LEAF_SIZE);

      MeshFlat mesh = new MeshFlat(1,1);

      DistortedEffects effects = new DistortedEffects();

      mScreenW = 9*LEAF_SIZE;

      mScreenH = 9*LEAF_SIZE;

      mRoot = new DistortedTree(new DistortedTexture(mScreenW,mScreenH), effects, mesh);

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

      rot.setMode(Dynamic1D.MODE_JUMP);

      rot.add(new Static1D(  0));

      rot.add(new Static1D(360));

      DistortedTree[] mCircleNode = new DistortedTree[NUM_CIRCLES];

      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[] {0,2*LEAF_SIZE,  3*LEAF_SIZE,2*LEAF_SIZE,  6*LEAF_SIZE,2*LEAF_SIZE,  3*LEAF_SIZE/2,9*LEAF_SIZE/2,  9*LEAF_SIZE/2,9*LEAF_SIZE/2};

      Static3D center = new Static3D(3*LEAF_SIZE/2, 3*LEAF_SIZE/2, 0);

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

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

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

        {

        if( i<=1 )

          {

          effects = new DistortedEffects();

          mCircleNode[i] = new DistortedTree(new DistortedTexture(3*LEAF_SIZE,3*LEAF_SIZE), effects, mesh);

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

            {

            effects = new DistortedEffects();

            mCircleNode[i].attach(mLeaf, effects, mesh);

            effects.rotate( new Static1D(j*(360/NUM_LEAVES)), axis, center );

            effects.move(moveVector);

            }

          }

        else

          {

          mCircleNode[i] = new DistortedTree(mCircleNode[0], Distorted.CLONE_RENDERABLE |Distorted.CLONE_CHILDREN);

          }

        mRoot.attach(mCircleNode[i]);

        effects = mCircleNode[i].getEffects();

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

        effects.rotate( rot, axis, center );

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

        }

      mScreen = new DistortedScreen();

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      GLES30.glClear( GLES30.GL_DEPTH_BUFFER_BIT | GLES30.GL_COLOR_BUFFER_BIT);

      mScreen.renderTo(mRoot,System.currentTimeMillis());

      }

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

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

      {

      DistortedEffects effects = mRoot.getEffects();

      effects.abortEffects(EffectTypes.MATRIX);

      if( (float)mScreenH/mScreenW > (float)height/width )

        {

        int w = (height*mScreenW)/mScreenH;

        float factor = (float)height/mScreenH;

        effects.move( new Static3D((width-w)/2 ,0, 0) );

        effects.scale( factor );

        }

      else

        {

        int h = (width*mScreenH)/mScreenW;

        float factor = (float)width/mScreenW;

        effects.move( new Static3D(0,(height-h)/2,0) );

        effects.scale( factor );

        }

      mScreen.resize(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      GLES30.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

      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);

      try

        {

        Distorted.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

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

        }

      }

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

}