Animation stagger and a few slide fixes

src/main/java/org/saturnclient/ui2/Element.java

@@ -43,7 +43,8 @@ public class Element {
 
     public void playAnimationFrame(long elapsed) {
         if (this.animation != null && elapsed >= this.animation.delay) {
-            this.animation.tick(this.curve.apply(Math.min(1.0, (double) elapsed / this.animation.duration)), this);
+            this.animation.tick(this.curve
+                    .apply(Math.min(1.0, (double) (elapsed - this.animation.delay) / this.animation.duration)), this);
         }
     }
 

src/main/java/org/saturnclient/ui2/anim/Fade.java

@@ -11,12 +11,12 @@ public class Fade extends Animation {
 
     @Override
     public void tick(double progress, Element element) {
-        element.opacity = targetOpacity * (float) progress;
+        element.opacity = Math.max(0.1f, targetOpacity * (float) progress);
     }
 
     @Override
     public void init(Element element) {
         targetOpacity = element.opacity;
-        element.opacity = 0;
+        element.opacity = 0.1f;
     }
 }

src/main/java/org/saturnclient/ui2/anim/SlideFade.java

@@ -0,0 +1,32 @@
+package org.saturnclient.ui2.anim;
+
+import org.saturnclient.ui2.Element;
+
+public class SlideFade extends Animation {
+    public Fade fade;
+    public SlideY slideY;
+
+    public SlideFade(int duration, int offset) {
+        super(duration);
+        this.fade = new Fade(duration);
+        this.slideY = new SlideY(duration, offset);
+    }
+
+    @Override
+    public void tick(double progress, Element element) {
+        fade.delay = this.delay;
+        fade.duration = this.duration;
+
+        slideY.delay = this.delay;
+        slideY.duration = this.duration;
+
+        fade.tick(progress, element);
+        slideY.tick(progress, element);
+    }
+
+    @Override
+    public void init(Element element) {
+        fade.init(element);
+        slideY.init(element);
+    }
+}

src/main/java/org/saturnclient/ui2/anim/SlideY.java

@@ -5,7 +5,7 @@ import org.saturnclient.ui2.Element;
 public class SlideY extends Animation {
     int offset = 20;
     int maxOffset = 20;
-    int elementY;
+    double startY;
 
     public SlideY(int duration) {
         super(duration);
@@ -24,15 +24,16 @@ public class SlideY extends Animation {
         this.offset = offset;
         this.maxOffset = offset;
     }
-    
-    @Override
-    public void tick(double progress, Element element) {
-        element.y = elementY + (int) (offset * progress);
-    }
 
     @Override
     public void init(Element element) {
-        element.y -= offset;
-        elementY = element.y;
+        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;
     }
 }

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

@@ -30,9 +30,9 @@ public class AnimationStagger extends Element {
 
     public void draw(Element element) {
         if (element.animation != null) {
-            element.animation.delay = delay * (children.size() + 1);
+            element.animation.delay = delay * children.size();
         }
-        children.add(element);
+        ElementRenderer.draw(children, element);
     }
 
     @Override

src/main/java/org/saturnclient/ui2/screens/TitleMenu.java

@@ -7,7 +7,9 @@ import org.saturnclient.ui2.resources.Textures;
 import org.saturnclient.ui2.screens.cosmetics.CloakMenu;
 import org.saturnclient.ui2.SaturnScreen;
 import org.saturnclient.ui2.anim.Fade;
+import org.saturnclient.ui2.anim.SlideFade;
 import org.saturnclient.ui2.anim.SlideY;
+import org.saturnclient.ui2.elements.AnimationStagger;
 import org.saturnclient.ui2.elements.Button;
 import org.saturnclient.ui2.elements.ImageTexture;
 import org.saturnclient.ui2.elements.TextureButton;
@@ -19,7 +21,7 @@ import net.minecraft.client.gui.screen.world.SelectWorldScreen;
 
 public class TitleMenu extends SaturnScreen {
     public TitleMenu() {
-        super("Tile Menu");
+        super("Title Menu");
     }
 
     @Override
@@ -31,21 +33,25 @@ public class TitleMenu extends SaturnScreen {
         draw(new ImageTexture(SaturnClientConfig.getLogo()).dimensions(98, 98).centerOffset(width, height, 0, -82)
                 .animation(new SlideY(700, -20)));
 
-        draw(new Button("SINGLEPLAYER", () -> {
+        AnimationStagger stagger = new AnimationStagger(120);
+
+        stagger.draw(new Button("SINGLEPLAYER", () -> {
             client.setScreen(new SelectWorldScreen(new TitleMenu()));
-        }).scale(0.69f).dimensions(420, 52).centerOffset(width, height, 0, 0));
+        }).scale(0.69f).dimensions(420, 52).position(0, 0).animation(new SlideFade(1000, -10)));
 
-        draw(new Button("MULTIPLAYER", () -> {
+        stagger.draw(new Button("MULTIPLAYER", () -> {
             client.setScreen(new MultiplayerScreen(new TitleMenu()));
-        }).scale(0.69f).dimensions(420, 52).centerOffset(width, height, 0, 40));
+        }).scale(0.69f).dimensions(420, 52).position(0, 40).animation(new SlideFade(1000, -10)));
 
-        draw(new Button("OPTIONS", () -> {
+        stagger.draw(new Button("OPTIONS", () -> {
             client.setScreen(new OptionsScreen(new TitleMenu(), SaturnClient.client.options));
-        }).scale(0.69f).dimensions(206, 52).centerOffset(width, height, -73, 80));
+        }).scale(0.69f).dimensions(206, 52).position(0, 80).animation(new SlideFade(1000, -10)));
 
-        draw(new Button("QUIT", () -> {
+        stagger.draw(new Button("QUIT", () -> {
             client.scheduleStop();
-        }).scale(0.69f).dimensions(206, 52).centerOffset(width, height, 73, 80));
+        }).scale(0.69f).dimensions(206, 52).position(146, 80).animation(new SlideFade(1000, -10)));
+
+        draw(stagger.dimensions(289, 143).centerOffset(width, height, 0, 60));
 
         int s = Fonts.getHeight() + 20;