Javadoc und kleine Refactorings

src/main/java/schule/ngb/zm/anim/Animation.java

@@ -121,7 +121,8 @@ public abstract class Animation<T> implements Updatable {
 	 * e = Constants.limit(e, 0, 1);
 	 * </code></pre>
 	 *
-	 * @param e
+	 * @param e Fortschritt der Animation nachdem die Easingfunktion angewandt
+	 * 	wurde.
 	 */
 	public abstract void interpolate( double e );
 

src/main/java/schule/ngb/zm/anim/Animations.java

@@ -15,6 +15,7 @@ import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 import java.util.function.*;
 
+@SuppressWarnings( "unchecked" )
 public class Animations {
 
 	public static final <T> Future<T> animateProperty( String propName, T target, double to, int runtime, DoubleUnaryOperator easing ) {
@@ -148,7 +149,9 @@ public class Animations {
 	public static final <T> Future<T> animate( T target, int runtime, DoubleUnaryOperator easing, DoubleConsumer stepper ) {
 		return TaskRunner.run(new FramerateLimitedTask() {
 			double t = 0.0;
+
 			final long starttime = System.currentTimeMillis();
+
 			@Override
 			public void update( double delta ) {
 				// One animation step for t in [0,1]