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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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// This file is part of Distorted. //
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// //
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// Distorted is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// Distorted is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.examples.starwars;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Random;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.opengles.GL10;
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import org.distorted.examples.R;
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import org.distorted.library.EffectNames;
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import org.distorted.library.type.Dynamic1D;
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import org.distorted.library.type.Dynamic3D;
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import org.distorted.library.DistortedNode;
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import org.distorted.library.type.Static1D;
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import org.distorted.library.type.Static3D;
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import org.distorted.library.type.Static4D;
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import org.distorted.library.message.EffectListener;
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import org.distorted.library.message.EffectMessage;
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import org.distorted.library.Distorted;
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import org.distorted.library.DistortedBitmap;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Typeface;
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import android.opengl.GLES20;
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import android.opengl.GLSurfaceView;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class StarWarsRenderer implements GLSurfaceView.Renderer, EffectListener
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{
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private final String[] mGFFAString =
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{ "A long time ago, in a galaxy far,",
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"far away...." }; // yes, there really was a four-dot ellipsis
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private final String[] mCRAWLString =
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{ "It is a period of civil war.", // in the original 1977 version, there was no
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"Rebel spaceships, striking", // 'Episode IV New Hope' subtitle line before
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"from a hidden base, have", // the crawl. Lets keep to the classic.
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"won their first victory",
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"against the evil Galactic",
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"Empire.",
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"",
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"During the battle, rebel",
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"spies managed to steal",
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"secret plans to the Empire's",
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"ultimate weapon, the",
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"DEATH STAR, an armored",
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"space station with enough",
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"power to destroy an entire",
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"planet.",
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"",
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"Pursued by the Empire's",
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"sinister agents, Princess",
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"Leia races home aboard her",
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"starship, custodian of the",
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"stolen plans that can save",
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"her people and restore",
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"freedom to the galaxy...." }; // four-dot.
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private final int NUM_STARS = 40;
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private final int CRAWL_COLOR = 0xffffe81f;
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private final int GFFA_COLOR = 0xff0000ff;
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private final int FONT_HEIGHT = 40;
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private final int VERTICAL_SPACING = 10;
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private final String CRAWL_TYPEFACE = "News Gothic";
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private final int CRAWL_WIDTH = 500;
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private final int CRAWL_HEIGHT= (FONT_HEIGHT+VERTICAL_SPACING)*(mCRAWLString.length+1);
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private final int GFFA_WIDTH = 600;
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private final int GFFA_HEIGHT= (FONT_HEIGHT+VERTICAL_SPACING)*(mGFFAString.length+1);
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private final float CRAWL_ANGLE = -30.0f;
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private GLSurfaceView mView;
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private DistortedBitmap mScreen, mGFFA, mLogo, mCrawl, mCrawlBackground;
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private DistortedBitmap[] mStars;
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private long gffaID, logoID, crawlID;
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private Random mRnd = new Random(0);
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private DistortedNode mRoot, mBackground;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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StarWarsRenderer(GLSurfaceView v)
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{
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mView = v;
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Distorted.setFov(60.0f);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void onDrawFrame(GL10 glUnused)
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{
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GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
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mRoot.draw(System.currentTimeMillis());
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void onSurfaceChanged(GL10 glUnused, int width, int height)
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{
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Distorted.onSurfaceChanged(width, height);
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setupScreen(width,height);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void onSurfaceCreated(GL10 glUnused, EGLConfig config)
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{
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GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
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setupBitmaps();
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try
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{
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Distorted.onSurfaceCreated(mView.getContext());
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}
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catch(Exception ex)
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{
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android.util.Log.e("Star Wars", ex.getMessage() );
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void setupScreen(int w, int h)
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{
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mScreen = new DistortedBitmap(w,h,1);
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mRoot = new DistortedNode(mScreen);
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mCrawlBackground = new DistortedBitmap(w,(int)(Math.sqrt(3.0)*h),1);
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int randomA, randomX, randomY, randomTime;
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float randomS, randomAlpha1, randomAlpha2;
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Static3D center = new Static3D(0,0,0);
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Static3D axis = new Static3D(0,0,1);
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Static1D alphaNoise = new Static1D(0.4f);
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for(int i=0; i<NUM_STARS; i++)
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{
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randomX = mRnd.nextInt(w);
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randomY = mRnd.nextInt(h);
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randomS = 0.2f+ mRnd.nextFloat();
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randomA = (int)(180*mRnd.nextFloat());
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randomAlpha1 = 0.2f + 0.8f*mRnd.nextFloat();
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randomAlpha2 = 0.8f + 0.2f*mRnd.nextFloat();
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randomTime = 500+mRnd.nextInt(2000);
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mStars[i].move( new Static3D(randomX,randomY,0) );
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mStars[i].scale( new Static3D(randomS,randomS,randomS) );
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mStars[i].rotate( new Static1D(randomA), axis, center );
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Dynamic1D di = new Dynamic1D(randomTime,0.0f);
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di.setNoise(alphaNoise);
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di.add(new Static1D(randomAlpha1));
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di.add(new Static1D(randomAlpha2));
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mStars[i].alpha(di);
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mRoot.attach(mStars[i]);
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}
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float scale = (0.5f*w/mGFFA.getWidth());
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Dynamic1D di = new Dynamic1D(6000,0.5f);
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di.add(new Static1D(1.0f));
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di.add(new Static1D(1.0f));
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di.add(new Static1D(0.0f));
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mGFFA.move( new Static3D(w/5,h/3,0) );
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mGFFA.scale( new Static3D(scale,scale,scale) );
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mGFFA.alpha(di);
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mRoot.attach(mGFFA);
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mGFFA.addEventListener(this);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void setupBitmaps()
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{
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InputStream is1 = mView.getContext().getResources().openRawResource(R.raw.starwars);
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InputStream is2 = mView.getContext().getResources().openRawResource(R.raw.star);
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Bitmap bitmapStar, bitmapGFFA, bitmapLogo, bitmapText;
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try
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{
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bitmapLogo = BitmapFactory.decodeStream(is1);
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bitmapStar = BitmapFactory.decodeStream(is2);
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}
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finally
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{
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try
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{
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is1.close();
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is2.close();
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}
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catch(IOException e) { }
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}
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Paint paint = new Paint();
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paint.setAntiAlias(true);
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paint.setTextAlign(Paint.Align.LEFT);
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paint.setTextSize(FONT_HEIGHT);
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paint.setColor(GFFA_COLOR);
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Typeface tf = Typeface.create(CRAWL_TYPEFACE, Typeface.BOLD);
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paint.setTypeface(tf);
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///// create GFFA ///////////////////
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mGFFA = new DistortedBitmap(GFFA_WIDTH, GFFA_HEIGHT, 1);
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bitmapGFFA = Bitmap.createBitmap(GFFA_WIDTH,GFFA_HEIGHT,Bitmap.Config.ARGB_8888);
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bitmapGFFA.eraseColor(0x00000000);
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Canvas gffaCanvas = new Canvas(bitmapGFFA);
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for(int i=0; i<mGFFAString.length; i++)
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{
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gffaCanvas.drawText(mGFFAString[i], 0, (i+1)*(FONT_HEIGHT+VERTICAL_SPACING), paint);
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}
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mGFFA.setBitmap(bitmapGFFA);
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///// create Logo ///////////////////
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mLogo = new DistortedBitmap(bitmapLogo, 1);
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///// create CRAWL //////////////////
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mCrawl = new DistortedBitmap(CRAWL_WIDTH, CRAWL_HEIGHT, 1);
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bitmapText = Bitmap.createBitmap(CRAWL_WIDTH,CRAWL_HEIGHT,Bitmap.Config.ARGB_8888);
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bitmapText.eraseColor(0x00000000);
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Canvas textCanvas = new Canvas(bitmapText);
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paint.setColor(CRAWL_COLOR);
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for(int i=0; i<mCRAWLString.length; i++)
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{
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displayJustified(mCRAWLString[i], 0, (i+1)*(FONT_HEIGHT+VERTICAL_SPACING), CRAWL_WIDTH, textCanvas, paint);
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}
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mCrawl.setBitmap(bitmapText);
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///// create Stars ///////////////////
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mStars = new DistortedBitmap[NUM_STARS];
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mStars[0] = new DistortedBitmap(bitmapStar,1);
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for(int i=1; i<NUM_STARS; i++)
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{
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mStars[i] = new DistortedBitmap(mStars[0], Distorted.CLONE_BITMAP|Distorted.CLONE_VERTEX);
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}
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gffaID = mGFFA.getID();
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logoID = mLogo.getID();
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crawlID= mCrawl.getID();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void displayJustified(String str, int x, int y, int length, Canvas c, Paint paint)
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{
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int len = str.length();
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int numspaces = retNumSpaces(str);
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if( len>0 && str.charAt(len-1) == ' ' ) numspaces--;
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float left=x,w = (numspaces>0 ? (length-paint.measureText(str))/numspaces : 0);
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String tmp;
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int begin,end=0;
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while( end<len )
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{
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begin=end;
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end = str.indexOf(' ', begin)+1;
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if( end<=0 ) end = len;
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tmp = str.substring(begin,end);
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c.drawText( tmp, left, y, paint);
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left+= (paint.measureText(tmp)+w);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private int retNumSpaces(String str)
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{
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int begin=0, ret=0;
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while( true )
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{
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begin = str.indexOf(' ', begin) +1;
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if( begin>0 ) ret++;
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else break;
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}
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return ret;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// the library sending messages to us. This is running on a library 'MessageSender' thread.
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public void effectMessage(final EffectMessage em, final long effectID, final EffectNames effectName, final long objectID, final String message)
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{
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if( em==EffectMessage.EFFECT_FINISHED )
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{
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if( objectID == gffaID )
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{
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mRoot.detach(mGFFA);
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mGFFA.removeEventListener(this);
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int screenW=mScreen.getWidth();
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int screenH=mScreen.getHeight();
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int logoW = mLogo.getWidth();
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int logoH = mLogo.getHeight();
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int initSize= (int)(3.0f*screenW/logoW);
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int finaSize= (int)(0.1f*screenW/logoW);
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Dynamic3D di = new Dynamic3D(10000,0.5f);
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di.add(new Static3D(initSize,initSize,1));
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di.add(new Static3D(finaSize,finaSize,1));
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mLogo.move( new Static3D(screenW/2,screenH/2,0) );
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mLogo.scale(di);
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mLogo.move( new Static3D(-logoW/2,-logoH/2,0) );
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mRoot.attach(mLogo);
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mLogo.addEventListener(this);
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}
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else if( objectID==logoID )
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{
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mRoot.detach(mLogo);
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mLogo.removeEventListener(this);
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int crawlW = mCrawl.getWidth();
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int crawlH = mCrawl.getHeight();
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int screenW= mScreen.getWidth();
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int screenH= mScreen.getHeight();
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int backH = mCrawlBackground.getHeight();
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float scale= (float)screenW/crawlW;
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Dynamic3D di = new Dynamic3D(60000,0.5f);
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di.add(new Static3D(screenW/2,+backH , 0));
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di.add(new Static3D(screenW/2,-scale*crawlH, 0));
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mCrawlBackground.move( new Static3D(0,screenH-backH,0) );
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mCrawlBackground.rotate( new Static1D(CRAWL_ANGLE), new Static3D(1,0,0), new Static3D(screenW/2,backH,0) );
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final int transpDist = 5;
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Static4D region = new Static4D(screenW/2,(1-transpDist)*backH,transpDist*backH,transpDist*backH);
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mCrawlBackground.alpha(new Static1D(1-transpDist/2), region, true);
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mCrawl.move(di);
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mCrawl.scale( new Static3D(scale,scale,scale) );
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mCrawl.move( new Static3D(-crawlW/2,0,0) );
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mBackground = mRoot.attach(mCrawlBackground);
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mBackground.attach(mCrawl);
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mCrawl.addEventListener(this);
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}
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else if( objectID==crawlID )
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{
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mRoot.detach(mBackground);
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mBackground.detach(mCrawl);
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mCrawl.removeEventListener(this);
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}
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}
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}
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}
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