Distorted Android

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

// Copyright 2022 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is proprietary software licensed under an EULA which you should have received      //

// along with the code. If not, check https://distorted.org/magic/License-Magic-Cube.html        //

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

package org.distorted.examples.flatblur2;

import android.content.res.Resources;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Paint;

import org.distorted.examples.R;

import org.distorted.library.effect.EffectQuality;

import org.distorted.library.effect.FragmentEffectAlpha;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.PostprocessEffectGlow;

import org.distorted.library.effect.VertexEffectMove;

import org.distorted.library.effect.VertexEffectScale;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.main.InternalOutputSurface;

import org.distorted.library.mesh.MeshJoined;

import org.distorted.library.mesh.MeshQuad;

import org.distorted.library.message.EffectListener;

import org.distorted.library.type.Dynamic;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic2D;

import org.distorted.library.type.Dynamic3D;

import org.distorted.library.type.Dynamic4D;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import java.util.Random;

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

public class OverlayStars extends OverlayGeneric implements EffectListener

{

   private static final int DUR_APP =  3500;

   private static final int DUR_MOV = 17500;

   private static final int DUR_GLO =  2600;

   private ListenerOverlay mListener;

   private DistortedNode mNodeFalling, mNodeCentral;

   private DistortedScreen mScreen;

   private DistortedTexture mTexture;

   private Bitmap mCountBitmap, mStarBitmap;

   private Canvas mCountCanvas;

   private Paint mPaint;

   private int mBmpW, mBmpH;

   private float mWidth, mHeight;

   private Random mRandom;

   private long mMoveID, mGlow1ID, mGlow2ID, mAlphaID;

   private int mTotalStars, mNewStars;

   private FragmentEffectAlpha mAlpha;

   private Dynamic1D mAlphaStrength;

   private boolean mIncrease;

   private float mTextHeight;

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

   private Dynamic3D createRandomMove(boolean increase)

      {

      Dynamic3D move = new Dynamic3D();

      move.setMode(Dynamic.MODE_PATH);

      move.setDuration(DUR_MOV);

      move.setCount(0.5f);

      float widthS = (mRandom.nextFloat()-0.5f)*mWidth*1.10f;

      float widthM = widthS + (mRandom.nextFloat()-0.5f)*mWidth*0.2f;

      float heighS = mRandom.nextFloat()*mHeight*0.2f;

      float heighM = (mRandom.nextFloat()-0.5f)*mHeight*0.2f;

      Static3D pointS = new Static3D(widthS,mHeight*0.55f+heighS,0);

      Static3D pointM = new Static3D(widthM,mHeight*0.25f+heighM,0);

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

      Static3D pointF = new Static3D(0,0,-10000);

      if( increase )

         {

         move.add(pointS);

         move.add(pointM);

         move.add(pointE);

         move.add(pointF);

         }

      else

         {

         move.add(pointF);

         move.add(pointE);

         move.add(pointM);

         move.add(pointS);

         }

      return move;

      }

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

   private void createAlphaEffect(boolean appear)

      {

      if( mAlpha==null )

         {

         mAlphaStrength = new Dynamic1D();

         mAlphaStrength.setMode(Dynamic.MODE_PATH);

         mAlphaStrength.setDuration(DUR_APP);

         mAlphaStrength.setCount(0.5f);

         equipAlpha(mAlphaStrength,appear);

         mAlpha = new FragmentEffectAlpha(mAlphaStrength);

         }

      else

         {

         mAlphaStrength.resetToBeginning();

         equipAlpha(mAlphaStrength,appear);

         }

      }

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

   private void equipAlpha(Dynamic1D alpha, boolean appear)

      {

      Static1D point0 = new Static1D(0.0f);

      Static1D point1 = new Static1D(1.0f);

      alpha.removeAll();

      if( appear )

        {

        alpha.add(point0);

        alpha.add(point1);

        }

      else

        {

        alpha.add(point1);

        alpha.add(point0);

        }

      }

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

   private float computeQuotientAndTextHeight(int total)

      {

      if( total>=10000 )

         {

         mTextHeight = 0.610f;

         return 0.16f;

         }

      if( total>= 1000 )

         {

         mTextHeight = 0.625f;

         return 0.20f;

         }

      if( total>=  100 )

         {

         mTextHeight = 0.640f;

         return 0.26f;

         }

      mTextHeight = 0.655f;

      return 0.28f;

      }

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

   private void createBitmap(Resources res, int total)

      {

      mStarBitmap = BitmapFactory.decodeResource(res, R.raw.yellow_star);

      mBmpW = mStarBitmap.getWidth();

      mBmpH = mStarBitmap.getHeight();

      mCountBitmap = Bitmap.createBitmap(mBmpW,mBmpH,Bitmap.Config.ARGB_8888);

      mCountCanvas = new Canvas(mCountBitmap);

      float quotient = computeQuotientAndTextHeight(total);

      mPaint = new Paint();

      mPaint.setColor(0xff000000);

      mPaint.setTextSize(mBmpH*quotient);

      mPaint.setAntiAlias(true);

      mPaint.setTextAlign(Paint.Align.CENTER);

      }

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

   private DistortedNode createNodeFalling(boolean increase)

      {

      DistortedTexture texture = new DistortedTexture();

      texture.setTexture(mStarBitmap);

      MeshQuad[] mesh = new MeshQuad[mNewStars];

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

         {

         mesh[i] = new MeshQuad();

         mesh[i].setEffectAssociation(0,1,i+1);

         }

      MeshJoined wholeMesh = new MeshJoined(mesh);

      DistortedEffects effects = new DistortedEffects();

      VertexEffectScale scaleE = new VertexEffectScale(mWidth*0.15f);

      scaleE.setMeshAssociation(1,-1);

      effects.apply(scaleE);

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

        {

        Dynamic3D moveP = createRandomMove(increase);

        VertexEffectMove moveE= new VertexEffectMove(moveP);

        moveE.setMeshAssociation(0,i+1);

        effects.apply(moveE);

        if( i==0 )

           {

           mMoveID = moveE.getID();

           moveE.notifyWhenFinished(this);

           }

        }

      return new DistortedNode(texture,effects,wholeMesh);

      }

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

   private DistortedNode createNodeCentral(int numStars)

      {

      mTexture = new DistortedTexture();

      renderStars(numStars);

      MeshQuad mesh = new MeshQuad();

      DistortedEffects effects = new DistortedEffects();

      float scaleM  = mWidth*0.40f;

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

      MatrixEffectMove move  = new MatrixEffectMove(moveM);

      MatrixEffectScale scale= new MatrixEffectScale(scaleM);

      effects.apply(move);

      effects.apply(scale);

      createAlphaEffect(true);

      effects.apply(mAlpha);

      return new DistortedNode(mTexture,effects,mesh);

      }

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

   private void renderStars(int numStars)

      {

      String txt = ""+numStars;

      mCountBitmap.eraseColor(0x00000000);

      mCountCanvas.drawBitmap(mStarBitmap,0,0,null);

      mCountCanvas.drawText(txt,mBmpW*0.5f,mBmpH*mTextHeight,mPaint);

      mTexture.setTexture(mCountBitmap);

      }

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

   public long startOverlay(DistortedScreen screen, ListenerOverlay listener, DataGeneric data)

      {

      mRandom = new Random();

      mScreen = screen;

      mListener= listener;

      DataStars stars = (DataStars)data;

      mTotalStars = stars.getTotal();

      mNewStars   = stars.getNew();

      Resources res = stars.getResources();

      mWidth = mScreen.getWidth();

      mHeight= mScreen.getHeight();

      mIncrease = mNewStars>0;

      if( !mIncrease ) mNewStars = -mNewStars;

      createBitmap(res, mTotalStars);

      mNodeFalling = createNodeFalling(mIncrease);

      mNodeFalling.enableDepthStencil(InternalOutputSurface.NO_DEPTH_NO_STENCIL);

      mScreen.attach(mNodeFalling);

      mNodeCentral = createNodeCentral(mTotalStars);

      mNodeCentral.glDepthMask(false);

      mScreen.attach(mNodeCentral);

      return 0;

      }

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

   private PostprocessEffectGlow constructGlow(boolean firstPhase)

      {

      Dynamic2D haloRadius = new Dynamic2D(DUR_GLO,0.5f);

      Static2D point20 = new Static2D( 0, 0);

      Static2D point21 = new Static2D(15,50);

      Dynamic4D color = new Dynamic4D(DUR_GLO, 0.5f);

      Static4D point40 = new Static4D(1,1,1,0.0f);

      Static4D point41 = new Static4D(1,1,1,0.8f);

      if( firstPhase )

         {

         haloRadius.add(point20);

         haloRadius.add(point21);

         color.add(point40);

         color.add(point41);

         }

      else

         {

         haloRadius.add(point21);

         haloRadius.add(point20);

         color.add(point41);

         color.add(point40);

         }

      PostprocessEffectGlow glow = new PostprocessEffectGlow(haloRadius,color);

      glow.setQuality(EffectQuality.MEDIUM);

      glow.notifyWhenFinished(this);

      return glow;

      }

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

   public void effectFinished(long id)

      {

      if( id==mMoveID )

         {

         PostprocessEffectGlow glow = constructGlow(true);

         mGlow1ID = glow.getID();

         DistortedEffects effects = mNodeCentral.getEffects();

         effects.apply(glow);

         }

      if( id==mGlow1ID )

         {

         renderStars(mTotalStars+(mIncrease ? mNewStars : -mNewStars));

         PostprocessEffectGlow glow = constructGlow(false);

         mGlow2ID = glow.getID();

         DistortedEffects effects = mNodeCentral.getEffects();

         effects.abortById(mGlow1ID);

         effects.apply(glow);

         }

      if( id==mGlow2ID )

         {

         DistortedEffects effects = mNodeCentral.getEffects();

         effects.abortById(mGlow2ID);

         createAlphaEffect(false);

         mAlphaID = mAlpha.getID();

         mAlpha.notifyWhenFinished(this);

         effects.apply(mAlpha);

         }

      if( id==mAlphaID )

         {

         mScreen.detach(mNodeCentral);

         mNodeCentral.markForDeletion();

         mNodeCentral=null;

         mScreen.detach(mNodeFalling);

         mNodeFalling.markForDeletion();

         mNodeFalling=null;

         mListener.overlayFinished(id);

         }

      }

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

  @SuppressWarnings("unused")

  public static void enableEffects()

     {

     FragmentEffectAlpha.enable();

     VertexEffectMove.enable();

     VertexEffectScale.enable();

     PostprocessEffectGlow.enable();

     }

}