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.scratchpad;

import android.content.Context;

import android.opengl.GLSurfaceView;

import android.os.Build;

import android.view.MotionEvent;

import android.util.AttributeSet;

import org.distorted.library.Float2D;

import org.distorted.library.Float3D;

import org.distorted.library.Float4D;

import org.distorted.library.Interpolator3D;

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

public class ScratchpadSurfaceView extends GLSurfaceView

  {

  private ScratchpadRenderer mRenderer;

  private static int mCurrentEffect;

  private static int mDuration;

  private static float mCount;

  private static int mScrW, mScrH;

  private static Float4D region;

  private static Float2D  point;

  private static Interpolator3D di;

  private static Float3D v0, v1, v2, v3;

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

  public ScratchpadSurfaceView(Context c, AttributeSet attrs) 

    {

    super(c, attrs);

    mDuration = 10000;

    mCount    = 1.0f;

    di = new Interpolator3D();

    di.setDuration(mDuration);

    di.setCount(mCount);

    if(!isInEditMode())

      {

      setFocusable(true);

      setFocusableInTouchMode(true);

      setEGLContextClientVersion(2);

      if( Build.FINGERPRINT.startsWith("generic") ) // when running on the emulator, insert a magic line that is

        {                                           // supposed to cure the 'no config chosen' crash on emulator startup

        setEGLConfigChooser(8, 8, 8, 8, 16, 0);   

        }

      mRenderer = new ScratchpadRenderer(this);

      setRenderer(mRenderer);

      point = new Float2D(0,0);

      region= new Float4D(0,0,60,60);

      int h = 30;

      int r = 20;

      v0 = new Float3D( 0, r, h );

      v1 = new Float3D(-r, 0, h );

      v2 = new Float3D( 0,-r, h );

      v3 = new Float3D( r, 0, h );

      di.add(v0);

      di.add(v1);

      di.add(v2);

      di.add(v3);

      setEffect(0);  

      }

    }

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

  public static void setScreenSize(int width, int height)

    {

    mScrW = width;

    mScrH = height;

    }

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

  public static int getEffect()

    {

    return mCurrentEffect;

    }

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

  public static void setEffect(int effect)

    {

    mCurrentEffect = effect;

    }

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

  public static void setDuration(int duration)

    {

    mDuration = duration;

    di.setDuration(duration);

    }

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

  public static void setCount(float count)

    {

    mCount = count;

    di.setCount(count);

    }

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

  @Override public boolean onTouchEvent(MotionEvent event) 

    {

    int action = event.getAction();

    int x, y;

    switch(action)

      {

      case MotionEvent.ACTION_DOWN: x = (int)event.getX()*ScratchpadRenderer.BWID/mScrW;

                                    y = (int)event.getY()*ScratchpadRenderer.BHEI/mScrH;

                                    point.set(x,y);

                                    switch(mCurrentEffect)

                                      {

                                      case 0: ScratchpadRenderer.mBackground.distort(di, region, point); 

                                           break;

                                      case 1: ScratchpadRenderer.mBackground.sink(0.3f, region, point, mDuration, mCount); 

                                           break;

                                      case 2: ScratchpadRenderer.mBackground.alpha(0.0f, region, point, mDuration, mCount); 

                                           break;  

                                      case 3: ScratchpadRenderer.mBackground.macroblock(10, region, point, mDuration, mCount); 

                                           break;

                                      case 4: ScratchpadRenderer.mBackground.brightness(0.0f, region, point, mDuration, mCount); 

                                           break;      

                                      }

                                    break;

      }

    return true;

    }

  }