Adding ViroKit. Needs AWSCore :(

mobile/ios/ViroKit.framework/Headers/VROAnimation.h

@@ -0,0 +1,85 @@
+//
+//  VROAnimation.h
+//  ViroRenderer
+//
+//  Created by Raj Advani on 12/15/15.
+//  Copyright © 2015 Viro Media. All rights reserved.
+//
+
+#ifndef VROAnimation_h
+#define VROAnimation_h
+
+#include <stdio.h>
+#include <memory>
+#include <functional>
+#include "VROAnimatable.h"
+
+/*
+ Represents the animation of a property. Subclasses identify the type
+ of the property (e.g. animating a floating point value, animating a
+ VROVector3f, etc.).
+ */
+class VROAnimation {
+    
+public:
+    
+    VROAnimation() {}
+    VROAnimation(std::function<void(VROAnimatable *const)> finishCallback) :
+        _finishCallback(finishCallback)
+    {}
+    
+    virtual ~VROAnimation() {}
+    
+    /*
+     Set the animatable. This is typically the object holding the 
+     property to be animated. It is stored by a weak_ptr so we can
+     ensure it hasn't been deallocated before invoking the animation
+     each frame.
+     */
+    void setAnimatable(std::shared_ptr<VROAnimatable> animatable) {
+        _animatable = animatable;
+    }
+    
+    /*
+     Set a function to invoke when the animation completes.
+     */
+    void setFinishCallback(std::function<void(VROAnimatable *const)> callback) {
+        _finishCallback = callback;
+    }
+    
+    /*
+     Move the property to its value corresponding to t [0, 1].
+     */
+    virtual void processAnimationFrame(float t) = 0;
+    
+    /*
+     Immediately finish this animation by moving its value to the
+     end state.
+     */
+    virtual void finish() = 0;
+    
+    /*
+     Invoke after the animation is completed.
+     */
+    void onTermination() {
+        finish();
+        
+        std::shared_ptr<VROAnimatable> animatable = _animatable.lock();
+        if (animatable == nullptr){
+            return;
+        }
+
+        animatable->onAnimationFinished();
+        if (_finishCallback) {
+            _finishCallback(animatable.get());
+        }
+    }
+    
+protected:
+    
+    std::weak_ptr<VROAnimatable> _animatable;
+    std::function<void(VROAnimatable *const)> _finishCallback;
+    
+};
+
+#endif /* VROAnimation_h */