Animation Stagger element

src/main/java/org/saturnclient/ui2/elements/AnimationStagger.java

@@ -0,0 +1,52 @@
+package org.saturnclient.ui2.elements;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.saturnclient.ui2.Element;
+import org.saturnclient.ui2.ElementContext;
+import org.saturnclient.ui2.RenderScope;
+import org.saturnclient.ui2.components.ElementRenderer;
+
+public class AnimationStagger extends Element {
+    protected List<Element> children = new ArrayList<>();
+    public int duration;
+
+    public AnimationStagger(int duration) {
+        this.duration = duration;
+    }
+
+    @Override
+    public void render(RenderScope renderScope, ElementContext ctx) {
+        ElementRenderer.render(children, ctx.elapsed, renderScope,
+                ctx.mouseX,
+                ctx.mouseY);
+    }
+
+    @Override
+    public void click(int mouseX, int mouseY) {
+        ElementRenderer.mouseClicked(children, mouseX, mouseY, 0);
+    }
+
+    public void draw(Element element) {
+        if (element.animation != null) {
+            element.animation.duration = duration * (children.size() + 1);
+        }
+        children.add(element);
+    }
+
+    @Override
+    public void keyPressed(int keyCode, int scanCode, int modifiers) {
+        ElementRenderer.keyPressed(children, keyCode, scanCode, modifiers);
+    }
+
+    @Override
+    public void mouseDragged(double mouseX, double mouseY, int button, double deltaX, double deltaY) {
+        ElementRenderer.mouseDragged(children, mouseX, mouseY, button, deltaX, deltaY);
+    }
+
+    @Override
+    public void mouseReleased(double mouseX, double mouseY, int button) {
+        ElementRenderer.mouseReleased(children, mouseX, mouseY, button);
+    }
+}