Merge remote-tracking branch 'origin/master'

SPD-classes/src/main/java/com/watabou/utils/PointF.java

@@ -151,6 +151,10 @@ public class PointF {
 		return (float)Math.atan2( end.y - start.y, end.x - start.x );
 	}
 
+	public static float angle( Point start, Point end ) {
+		return (float)Math.atan2( end.y - start.y, end.x - start.x );
+	}
+
 	@Override
 	public boolean equals(Object o) {
 		if (super.equals(o))

SPD-classes/src/main/java/com/watabou/utils/Random.java

@@ -256,7 +256,18 @@ public class Random {
 	public synchronized static<T> void shuffle( List<?extends T> list){
 		Collections.shuffle(list, generators.peek());
 	}
-	
+
+	public static void shuffle( int[] array ) {
+		for (int i=0; i < array.length - 1; i++) {
+			int j = Int( i, array.length );
+			if (j != i) {
+				int t = array[i];
+				array[i] = array[j];
+				array[j] = t;
+			}
+		}
+	}
+
 	public static<T> void shuffle( T[] array ) {
 		for (int i=0; i < array.length - 1; i++) {
 			int j = Int( i, array.length );