v1.4.2: fixed rare race condition crashes with animation callbacks

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

@@ -245,33 +245,30 @@ public class CharSprite extends MovieClip implements Tweener.Listener, MovieClip
 	}
 	
 	public void attack( int cell ) {
-		turnTo( ch.pos, cell );
-		play( attack );
+		attack( cell, null );
 	}
 	
-	public void attack( int cell, Callback callback ) {
+	public synchronized void attack( int cell, Callback callback ) {
 		animCallback = callback;
 		turnTo( ch.pos, cell );
 		play( attack );
 	}
 	
 	public void operate( int cell ) {
-		turnTo( ch.pos, cell );
-		play( operate );
+		operate( cell, null );
 	}
 	
-	public void operate( int cell, Callback callback ) {
+	public synchronized void operate( int cell, Callback callback ) {
 		animCallback = callback;
 		turnTo( ch.pos, cell );
 		play( operate );
 	}
 	
 	public void zap( int cell ) {
-		turnTo( ch.pos, cell );
-		play( zap );
+		zap( cell, null );
 	}
 	
-	public void zap( int cell, Callback callback ) {
+	public synchronized void zap( int cell, Callback callback ) {
 		animCallback = callback;
 		zap( cell );
 	}
@@ -732,7 +729,7 @@ public class CharSprite extends MovieClip implements Tweener.Listener, MovieClip
 	}
 
 	@Override
-	public void onComplete( Animation anim ) {
+	public synchronized void onComplete( Animation anim ) {
 		
 		if (animCallback != null) {
 			Callback executing = animCallback;

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

@@ -124,7 +124,7 @@ public class HeroSprite extends CharSprite {
 		play( fly );
 	}
 
-	public void read() {
+	public synchronized void read() {
 		animCallback = new Callback() {
 			@Override
 			public void call() {