Adding more implementations and fixes

src/main/java/org/saturnclient/ui/anim/SlideY.java

@@ -0,0 +1,39 @@
+package org.saturnclient.ui.anim;
+
+import org.saturnclient.config.AnimationConfig;
+import org.saturnclient.ui.Element;
+
+public class SlideY extends Animation {
+    int offset = 20;
+    double startY;
+
+    public SlideY(AnimationConfig config) {
+        super(config);
+    }
+
+    public SlideY(AnimationConfig config, int offset) {
+        super(config);
+        this.offset = offset;
+    }
+
+    public SlideY(int duration) {
+        super(duration);
+    }
+
+    public SlideY(int duration, int offset) {
+        super(duration);
+        this.offset = offset;
+    }
+
+    @Override
+    public void init(Element element) {
+        startY = element.y - offset;
+        element.y = (int) startY;
+    }
+
+    @Override
+    public void tick(double progress, Element element) {
+        double currentY = startY + offset * progress;
+        element.y = (int) currentY;
+    }
+}