/*
 * Pixel Dungeon
 * Copyright (C) 2012-2015 Oleg Dolya
 *
 * Shattered Pixel Dungeon
 * Copyright (C) 2014-2016 Evan Debenham
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>
 */
package com.shatteredpixel.shatteredpixeldungeon.effects.particles;

import com.watabou.noosa.particles.Emitter;
import com.watabou.noosa.particles.Emitter.Factory;
import com.watabou.noosa.particles.PixelParticle;
import com.watabou.utils.Random;

public class SmokeParticle extends PixelParticle {
	
	public static final Factory FACTORY = new Factory() {
		@Override
		public void emit( Emitter emitter, int index, float x, float y ) {
			((SmokeParticle)emitter.recycle( SmokeParticle.class )).reset( x, y );
		}
	};
	
	public SmokeParticle() {
		super();
		
		color( 0x222222 );
		
		acc.set( 0, -40 );
	}
	
	public void reset( float x, float y ) {
		revive();
		
		this.x = x;
		this.y = y;
		
		left = lifespan = Random.Float( 0.6f, 1f );
		speed.set( Random.Float( -4, +4 ), Random.Float( -8, +8 ) );
	}
	
	@Override
	public void update() {
		super.update();
		
		float p = left / lifespan;
		am = p > 0.8f ? 2 - 2*p : p * 0.5f;
		size( 16 - p * 8 );
	}
}