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.aroundtheworld;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.opengl.GLSurfaceView;

import android.util.AttributeSet;

import android.view.MotionEvent;

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

class AroundTheWorldSurfaceViewPicker extends GLSurfaceView

{

    private AroundTheWorldRendererPicker mRenderer;

    private AroundTheWorldEffectsManager mManager;

    private float mX, mY;

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

    public AroundTheWorldSurfaceViewPicker(Context context, AttributeSet attrs)

      {

      super(context, attrs);

      if(!isInEditMode())

        {

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

        final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();

        android.util.Log.e("View", "Using OpenGL ES "+configurationInfo.getGlEsVersion());

        setEGLContextClientVersion( (configurationInfo.reqGlEsVersion>>16) >= 3 ? 3:2 );

        mRenderer = new AroundTheWorldRendererPicker();

        setRenderer(mRenderer);

        }

      }

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

    public AroundTheWorldRendererPicker getRenderer()

      {

      return mRenderer;

      }

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

    public void setEffectsManager(AroundTheWorldEffectsManager manager)

      {

      mManager = manager;

      }

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

    float getx()

      {

      return mX;

      }

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

    float gety()

      {

      return mY;

      }

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

    void set(float x, float y)

      {

      mX = x;

      mY = y;

      mRenderer.move(mX,mY);

      float distance_from_left =(mX+0.865f)/(3*0.865f);

      float distance_from_top  =0.333f*(1-mY)-0.192f*mX;

      mManager.setRace( distance_from_top, distance_from_left );

      }

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

    @Override

    public boolean onTouchEvent(MotionEvent event)

      {

      int x = (int)event.getX();

      int y = (int)event.getY();

      int h = mRenderer.getHeight();

      int w = mRenderer.getWidth();

      mX = (x-w/2)*3.0f/h;

      mY =-(y-h/2)*3.0f/h;

      if( mY>-1.5f && mY<1.5f )

        {

        if( mY>=0 && mY> 1-0.577f*mX )

          {

          float d = 0.577f*mX + mY;

          mY /= d;

          mX /= d;

          }

        else if( mY<=0 && mY< 0.577f*mX-1 )

          {

          float d = 0.577f*mX - mY;

          mY /= d;

          mX /= d;

          }

        else if( mX< -0.865f )

          {

          mX  =  -0.865f;

          }

        set(mX,mY);

        }

      return true;

      }

}