animations

3 files changed, 46 insertions, 0 deletions

diff --git a/src/main/java/cc/polyfrost/oneconfig/gui/animations/Animation.java b/src/main/java/cc/polyfrost/oneconfig/gui/animations/Animation.java
index ebb9145..9e2c238 100644
--- a/src/main/java/cc/polyfrost/oneconfig/gui/animations/Animation.java
+++ b/src/main/java/cc/polyfrost/oneconfig/gui/animations/Animation.java
@@ -7,6 +7,7 @@ public abstract class Animation {
     private final float start;
     private final float change;
     private float timePassed = 0;
+    protected final boolean reverse;
 
     /**
      * @param duration The duration of the animation
@@ -23,6 +24,7 @@ public abstract class Animation {
         }
         this.start = start;
         this.change = end - start;
+        this.reverse = reverse;
     }
 
     /**
@@ -49,5 +51,12 @@ public abstract class Animation {
         return timePassed >= duration;
     }
 
+    /**
+     * @return If the animation is reversed
+     */
+    public boolean isReversed() {
+        return reverse;
+    }
+
     protected abstract float animate(float timePassed, float duration, float start, float change);
 }
diff --git a/src/main/java/cc/polyfrost/oneconfig/gui/animations/DummyAnimation.java b/src/main/java/cc/polyfrost/oneconfig/gui/animations/DummyAnimation.java
new file mode 100644
index 0000000..6343123
--- /dev/null
+++ b/src/main/java/cc/polyfrost/oneconfig/gui/animations/DummyAnimation.java
@@ -0,0 +1,15 @@
+package cc.polyfrost.oneconfig.gui.animations;
+
+public class DummyAnimation extends Animation{
+    /**
+     * @param value The value that is returned
+     */
+    public DummyAnimation(float value) {
+        super(value, value, value, false);
+    }
+
+    @Override
+    protected float animate(float timePassed, float duration, float start, float change) {
+        return change;
+    }
+}
diff --git a/src/main/java/cc/polyfrost/oneconfig/gui/animations/EaseOutQuad.java b/src/main/java/cc/polyfrost/oneconfig/gui/animations/EaseOutQuad.java
new file mode 100644
index 0000000..6cc97bf
--- /dev/null
+++ b/src/main/java/cc/polyfrost/oneconfig/gui/animations/EaseOutQuad.java
@@ -0,0 +1,22 @@
+package cc.polyfrost.oneconfig.gui.animations;
+
+public class EaseOutQuad extends Animation {
+
+    /**
+     * @param duration The duration of the animation
+     * @param start    The start of the animation
+     * @param end      The end of the animation
+     * @param reverse  Reverse the animation
+     */
+    public EaseOutQuad(int duration, float start, float end, boolean reverse) {
+        super(duration, start, end, reverse);
+    }
+
+    /**
+     * Adapted from <a href="https://github.com/jesusgollonet/processing-penner-easing">https://github.com/jesusgollonet/processing-penner-easing</a>
+     */
+    @Override
+    protected float animate(float timePassed, float duration, float start, float change) {
+        return -change * (timePassed /= duration) * (timePassed - 2) + start;
+    }
+}