102 lines
2.2 KiB
Java
102 lines
2.2 KiB
Java
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/*
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* Pixel Dungeon
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* Copyright (C) 2012-2014 Oleg Dolya
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*
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* This program 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 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package com.watabou.pixeldungeon.effects;
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import javax.microedition.khronos.opengles.GL10;
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import android.opengl.GLES20;
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import com.watabou.noosa.Group;
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import com.watabou.noosa.particles.PixelParticle;
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import com.watabou.utils.PointF;
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import com.watabou.utils.Random;
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public class Identification extends Group {
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private static int[] DOTS = {
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-1, -3,
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0, -3,
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+1, -3,
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-1, -2,
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+1, -2,
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+1, -1,
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0, 0,
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+1, 0,
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0, +1,
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0, +3
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};
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public Identification( PointF p ) {
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for (int i=0; i < DOTS.length; i += 2) {
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add( new Speck( p.x, p.y, DOTS[i], DOTS[i+1] ) );
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add( new Speck( p.x, p.y, DOTS[i], DOTS[i+1] ) );
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}
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}
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@Override
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public void update() {
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super.update();
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if (countLiving() == 0) {
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killAndErase();
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}
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}
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@Override
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public void draw() {
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GLES20.glBlendFunc( GL10.GL_SRC_ALPHA, GL10.GL_ONE );
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super.draw();
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GLES20.glBlendFunc( GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA );
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}
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public static class Speck extends PixelParticle {
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public Speck( float x0, float y0, int mx, int my ) {
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super();
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color( 0x4488CC );
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float x1 = x0 + mx * 3;
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float y1 = y0 + my * 3;
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PointF p = new PointF().polar( Random.Float( 2 * PointF.PI ), 8 );
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x0 += p.x;
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y0 += p.y;
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float dx = x1 - x0;
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float dy = y1 - y0;
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x = x0;
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y = y0;
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speed.set( dx, dy );
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acc.set( -dx / 4, -dy / 4 );
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left = lifespan = 2f;
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}
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@Override
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public void update() {
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super.update();
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am = 1 - Math.abs( left / lifespan - 0.5f ) * 2;
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am *= am;
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size( am * 2 );
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}
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}
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}
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