v0.8.0: corrected various rare errors with evil eye sprites

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/sprites/EyeSprite.java

@@ -51,11 +51,6 @@ public class EyeSprite extends MobSprite {
 		charging = new Animation( 12, true);
 		charging.frames( frames, 3, 4 );
 		
-		chargeParticles = centerEmitter();
-		chargeParticles.autoKill = false;
-		chargeParticles.pour(MagicMissile.MagicParticle.ATTRACTING, 0.05f);
-		chargeParticles.on = false;
-		
 		run = new Animation( 12, true );
 		run.frames( frames, 5, 6 );
 		
@@ -72,15 +67,39 @@ public class EyeSprite extends MobSprite {
 	@Override
 	public void link(Char ch) {
 		super.link(ch);
+		
+		chargeParticles = centerEmitter();
+		chargeParticles.autoKill = false;
+		chargeParticles.pour(MagicMissile.MagicParticle.ATTRACTING, 0.05f);
+		chargeParticles.on = false;
+		
 		if (((Eye)ch).beamCharged) play(charging);
 	}
 
 	@Override
 	public void update() {
 		super.update();
-		chargeParticles.pos(center());
+		if (chargeParticles != null){
+			chargeParticles.pos( center() );
 			chargeParticles.visible = visible;
 		}
+	}
+
+	@Override
+	public void die() {
+		super.die();
+		if (chargeParticles != null){
+			chargeParticles.on = false;
+		}
+	}
+
+	@Override
+	public void kill() {
+		super.kill();
+		if (chargeParticles != null){
+			chargeParticles.killAndErase();
+		}
+	}
 
 	public void charge( int pos ){
 		turnTo(ch.pos, pos);
@@ -89,7 +108,7 @@ public class EyeSprite extends MobSprite {
 
 	@Override
 	public void play(Animation anim) {
-		chargeParticles.on = anim == charging;
+		if (chargeParticles != null) chargeParticles.on = anim == charging;
 		super.play(anim);
 	}