Improved animation system.

Now supports animation delays, canceling, and forcibly finishing animations.
See GuiComponent::cancelAnimation(), finishAnimation(), and new parameters for setAnimation().

src/GuiComponent.cpp

@@ -202,28 +202,31 @@ void GuiComponent::textInput(const char* text)
 	}
 }
 
-void GuiComponent::setAnimation(Animation* anim, std::function<void()> finishedCallback, bool reverse, unsigned char slot)
+void GuiComponent::setAnimation(Animation* anim, int delay, std::function<void()> finishedCallback, bool reverse, unsigned char slot)
 {
 	assert(slot < MAX_ANIMATIONS);
 
 	AnimationController* oldAnim = mAnimationMap[slot];
-	mAnimationMap[slot] = new AnimationController(anim, finishedCallback, reverse);
+	mAnimationMap[slot] = new AnimationController(anim, delay, finishedCallback, reverse);
 
 	if(oldAnim)
 		delete oldAnim;
 }
 
-void GuiComponent::stopAnimation(unsigned char slot)
+bool GuiComponent::stopAnimation(unsigned char slot)
 {
 	assert(slot < MAX_ANIMATIONS);
 	if(mAnimationMap[slot])
 	{
 		delete mAnimationMap[slot];
 		mAnimationMap[slot] = NULL;
+		return true;
+	}else{
+		return false;
 	}
 }
 
-void GuiComponent::cancelAnimation(unsigned char slot)
+bool GuiComponent::cancelAnimation(unsigned char slot)
 {
 	assert(slot < MAX_ANIMATIONS);
 	if(mAnimationMap[slot])
@@ -231,6 +234,26 @@ void GuiComponent::cancelAnimation(unsigned char slot)
 		mAnimationMap[slot]->removeFinishedCallback();
 		delete mAnimationMap[slot];
 		mAnimationMap[slot] = NULL;
+		return true;
+	}else{
+		return false;
+	}
+}
+
+bool GuiComponent::finishAnimation(unsigned char slot)
+{
+	assert(slot < MAX_ANIMATIONS);
+	if(mAnimationMap[slot])
+	{
+		// skip to animation's end
+		const bool done = mAnimationMap[slot]->update(mAnimationMap[slot]->getAnimation()->getDuration() - mAnimationMap[slot]->getTime());
+		assert(done);
+
+		delete mAnimationMap[slot]; // will also call finishedCallback
+		mAnimationMap[slot] = NULL;
+		return true;
+	}else{
+		return false;
 	}
 }
 

src/GuiComponent.h

@@ -58,9 +58,10 @@ public:
 	bool isAnimationPlaying(unsigned char slot) const;
 	bool isAnimationReversed(unsigned char slot) const;
 	int getAnimationTime(unsigned char slot) const;
-	void setAnimation(Animation* animation, std::function<void()> finishedCallback = nullptr, bool reverse = false, unsigned char slot = 0);
-	void stopAnimation(unsigned char slot);
-	void cancelAnimation(unsigned char slot); // like stopAnimation, but doesn't call finishedCallback - only removes the animation, leaving things in their current state
+	void setAnimation(Animation* animation, int delay = 0, std::function<void()> finishedCallback = nullptr, bool reverse = false, unsigned char slot = 0);
+	bool stopAnimation(unsigned char slot);
+	bool cancelAnimation(unsigned char slot); // like stopAnimation, but doesn't call finishedCallback - only removes the animation, leaving things in their current state
+	bool finishAnimation(unsigned char slot); // calls update(1.f) and finishedCallback, then deletes the animation - basically skips to the end
 	void stopAllAnimations();
 	void cancelAllAnimations();
 

src/animations/AnimationController.cpp

@@ -1,7 +1,7 @@
 #include "AnimationController.h"
 
-AnimationController::AnimationController(Animation* anim, std::function<void()> finishedCallback, bool reverse)
-	: mAnimation(anim), mFinishedCallback(finishedCallback), mReverse(reverse), mTime(0)
+AnimationController::AnimationController(Animation* anim, int delay, std::function<void()> finishedCallback, bool reverse)
+	: mAnimation(anim), mFinishedCallback(finishedCallback), mReverse(reverse), mTime(-delay), mDelay(delay)
 {
 }
 
@@ -16,6 +16,10 @@ AnimationController::~AnimationController()
 bool AnimationController::update(int deltaTime)
 {
 	mTime += deltaTime;
+
+	if(mTime < 0) // are we still in delay?
+		return false;
+
 	float t = (float)mTime / mAnimation->getDuration();
 
 	if(t > 1.0f)

src/animations/AnimationController.h

@@ -8,7 +8,7 @@ class AnimationController
 {
 public:
 	// Takes ownership of anim (will delete in destructor).
-	AnimationController(Animation* anim, std::function<void()> finishedCallback = nullptr, bool reverse = false);
+	AnimationController(Animation* anim, int delay = 0, std::function<void()> finishedCallback = nullptr, bool reverse = false);
 	virtual ~AnimationController();
 
 	// Returns true if the animation is complete.
@@ -16,7 +16,9 @@ public:
 
 	inline bool isReversed() const { return mReverse; }
 	inline int getTime() const { return mTime; }
+	inline int getDelay() const { return mDelay; }
 	inline const std::function<void()>& getFinishedCallback() const { return mFinishedCallback; }
+	inline Animation* getAnimation() const { return mAnimation; }
 
 	inline void removeFinishedCallback() { mFinishedCallback = nullptr; }
 
@@ -25,4 +27,5 @@ private:
 	std::function<void()> mFinishedCallback;
 	bool mReverse;
 	int mTime;
+	int mDelay;
 };

src/views/ViewController.cpp

@@ -112,12 +112,12 @@ void ViewController::launch(FileData* game, Eigen::Vector3f center)
 	center += mCurrentView->getPosition();
 	stopAnimation(1); // make sure the fade in isn't still playing
 	mLockInput = true;
-	setAnimation(new LaunchAnimation(mCamera, mFadeOpacity, center, 1500), [this, origCamera, center, game] 
+	setAnimation(new LaunchAnimation(mCamera, mFadeOpacity, center, 1500), 0, [this, origCamera, center, game] 
 	{
 		game->getSystem()->launchGame(mWindow, game);
 		mCamera = origCamera;
 		mLockInput = false;
-		setAnimation(new LaunchAnimation(mCamera, mFadeOpacity, center, 600), nullptr, true);
+		setAnimation(new LaunchAnimation(mCamera, mFadeOpacity, center, 600), 0, nullptr, true);
 		this->onFileChanged(game, FILE_METADATA_CHANGED);
 	});
 }

src/views/gamelist/DetailedGameListView.cpp

@@ -224,7 +224,7 @@ void DetailedGameListView::updateInfoPanel()
 			{
 				comp->setOpacity((unsigned char)(lerp<float>(0.0f, 1.0f, t)*255));
 			};
-			comp->setAnimation(new LambdaAnimation(func, 150), nullptr, fadingOut);
+			comp->setAnimation(new LambdaAnimation(func, 150), 0, nullptr, fadingOut);
 		}
 	}
 }