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.rubik;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.opengl.GLSurfaceView;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectQuaternion;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.main.Distorted;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshCubes;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class RubikRenderer implements GLSurfaceView.Renderer

{

    private static final int CUBE_SIZE = 3;

    private static final int VERTICES  = 5;

    private static final int SIZE      = 200;

    private GLSurfaceView mView;

    private DistortedTexture mTexture;

    private DistortedScreen mScreen;

    private Static3D mMove, mScale, mCenter;

    private MeshCubes[][][] mCubes;

    private DistortedEffects[][][] mEffects;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    RubikRenderer(GLSurfaceView v)

      {

      mView = v;

      mScreen = new DistortedScreen();

   // mScreen.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);

      mQuat1 = new Static4D(           0,         0,           0,          1);  // unity quaternion

      mQuat2 = new Static4D(-0.25189602f,0.3546389f,0.009657208f,0.90038127f);  // something semi-random that looks good

      mCubes = new MeshCubes[CUBE_SIZE][CUBE_SIZE][CUBE_SIZE];

      mEffects = new DistortedEffects[CUBE_SIZE][CUBE_SIZE][CUBE_SIZE];

      Static3D[][][] cubeVectors = new Static3D[CUBE_SIZE][CUBE_SIZE][CUBE_SIZE];

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

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

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

      MatrixEffectMove       move  = new MatrixEffectMove(mMove);

      MatrixEffectScale      scale = new MatrixEffectScale(mScale);

      MatrixEffectQuaternion quat1 = new MatrixEffectQuaternion(mQuat1, mCenter);

      MatrixEffectQuaternion quat2 = new MatrixEffectQuaternion(mQuat2, mCenter);

      // 3x2 bitmap = 6 squares:

      //

      // RED     GREEN   BLUE

      // YELLOW  WHITE   BROWN

      final float ze = 0.0f;

      final float ot = 1.0f/3.0f;

      final float tt = 2.0f/3.0f;

      final float oh = 1.0f/2.0f;

      final float of = 1.0f/40.0f;

      final Static4D mapFront = new Static4D(ze,oh, ze+ot,oh+oh);

      final Static4D mapBack  = new Static4D(tt,ze, tt+ot,ze+oh);

      final Static4D mapLeft  = new Static4D(ot,ze, ot+ot,ze+oh);

      final Static4D mapRight = new Static4D(ze,ze, ze+ot,ze+oh);

      final Static4D mapTop   = new Static4D(tt,oh, tt+ot,oh+oh);

      final Static4D mapBottom= new Static4D(ot,oh, ot+ot,oh+oh);

      final Static4D mapBlack = new Static4D(ze,ze, ze+of,ze+of);

      Static4D tmpFront, tmpBack, tmpLeft, tmpRight, tmpTop, tmpBottom;

      for(int x=0; x<CUBE_SIZE; x++)

        for(int y=0; y<CUBE_SIZE; y++)

          for(int z=0; z<CUBE_SIZE; z++)

            {

            tmpLeft  = (x==          0 ? mapLeft  :mapBlack);

            tmpRight = (x==CUBE_SIZE-1 ? mapRight :mapBlack);

            tmpFront = (z==CUBE_SIZE-1 ? mapFront :mapBlack);

            tmpBack  = (z==          0 ? mapBack  :mapBlack);

            tmpTop   = (y==CUBE_SIZE-1 ? mapTop   :mapBlack);

            tmpBottom= (y==          0 ? mapBottom:mapBlack);

            mCubes[x][y][z] = new MeshCubes(VERTICES,VERTICES,VERTICES, tmpFront, tmpBack, tmpLeft, tmpRight, tmpTop, tmpBottom);

            cubeVectors[x][y][z] = new Static3D( SIZE*(x-0.5f*(CUBE_SIZE-1)), SIZE*(y-0.5f*(CUBE_SIZE-1)), SIZE*(z-0.5f*(CUBE_SIZE-1)) );

            mEffects[x][y][z] = new DistortedEffects();

            mEffects[x][y][z].apply(move);

            mEffects[x][y][z].apply(scale);

            mEffects[x][y][z].apply(quat1);

            mEffects[x][y][z].apply(quat2);

            mEffects[x][y][z].apply( new MatrixEffectMove(cubeVectors[x][y][z]) );

            }

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      mScreen.render( System.currentTimeMillis() );

      }

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

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

      {

      mScreenMin = width<height ? width:height;

      float w = mTexture.getWidth();

      float h = mTexture.getHeight();

      float d = mTexture.getDepth(mCubes[0][0][0]);

      float factor = 0.6f*(width>height ? height/h:width/w)/CUBE_SIZE;

      mCenter.set(w/2,h/2,d/2);

      mMove.set( (width-factor*w)/2 , (height-factor*h)/2 , -factor*d/2 );

      mScale.set(factor,factor,factor);

      mScreen.resize(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      Bitmap bitmap;

      final int S = 128;

      final int W = 3*S;

      final int H = 2*S;

      final int R = S/10;

      final int M = S/20;

      Paint paint = new Paint();

      bitmap = Bitmap.createBitmap(W,H, Bitmap.Config.ARGB_8888);

      Canvas canvas = new Canvas(bitmap);

      paint.setAntiAlias(true);

      paint.setTextAlign(Paint.Align.CENTER);

      paint.setStyle(Paint.Style.FILL);

      // 3x2 bitmap = 6 squares:

      //

      // RED     GREEN   BLUE

      // YELLOW  WHITE   BROWN

      paint.setColor(0xff000000);                                  // BLACK BACKGROUND

      canvas.drawRect(0, 0, W, H, paint);                          //

      paint.setColor(0xffff0000);                                  // RED

      canvas.drawRoundRect(  0+M, 0+M,   S-M,   S-M, R, R, paint); //

      paint.setColor(0xff00ff00);                                  // GREEN

      canvas.drawRoundRect(  S+M, 0+M, 2*S-M,   S-M, R, R, paint); //

      paint.setColor(0xff0000ff);                                  // BLUE

      canvas.drawRoundRect(2*S+M, 0+M, 3*S-M,   S-M, R, R, paint); //

      paint.setColor(0xffffff00);                                  // YELLOW

      canvas.drawRoundRect(  0+M, S+M,   S-M, 2*S-M, R, R, paint); //

      paint.setColor(0xffffffff);                                  // WHITE

      canvas.drawRoundRect(  S+M, S+M, 2*S-M, 2*S-M, R, R, paint); //

      paint.setColor(0xffb5651d);                                  // BROWN

      canvas.drawRoundRect(2*S+M, S+M, 3*S-M, 2*S-M, R, R, paint); //

      if( mTexture==null ) mTexture = new DistortedTexture(SIZE,SIZE);

      mTexture.setTexture(bitmap);

      mScreen.detachAll();

      for(int x=0; x<CUBE_SIZE; x++)

        for(int y=0; y<CUBE_SIZE; y++)

          for(int z=0; z<CUBE_SIZE; z++)

             mScreen.attach(mTexture,mEffects[x][y][z],mCubes[x][y][z]);

      try

        {

        Distorted.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

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

        }

      }

}