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Author Topic: sf::Coach - header-only extension for managing animations  (Read 2092 times)

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MrOnlineCoder

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sf::Coach - header-only extension for managing animations
« on: April 05, 2017, 10:10:41 pm »
Hello. I came here to share my extension - sfCoach. I created it for personal needs, but maybe it will be useful for someone. So it helps you to animate objects.

Short documentation
There are 2 main classes: Animation and Coach in sfCoach namespace. The first one is abstract calss and has an update() method. The second one is just a simple container. Let's create a circle:
sf::CircleShape shape(50);
shape.setPosition(150, 150);
shape.setFillColor(sf::Color::Green);

Now, you need to create instance of Coach class:
sfCoach::Coach coach;

Also, you should call Coach update() method every frame:
while (window.isOpen) {
  //Handle events....
 

  coach.update();

  window.clear();

  window.display();
}

Now you can animate your objects. You can animate: Sprite, Text, CircleShape, RectangleShape. Currently, there are 3 types of animation: DisplayAnimation, FadeAnimation, MoveAnimation.

DisplayAnimation hides or shows the target after specified amount of time.
FadeAnimation fades the target in or out.
MoveAnimation moves object from point A to point B (interpolation).

Creating animation (for example):
sfCoach::DisplayAnimation hide(sfCoach::createTarget(shape), 3.2f); //3.2f is delay in seconds after which shape will be hidden

sfCoach::createTarget is a factory method. It is overloaded for most drawables to create universal animatable targets.

The last step is simple: play it!
coach.playAnimation(&hide);

You can find example and source code in GitHub repository:

https://github.com/MrOnlineCoder/sfCoach

Thanks to therocode for factory methods idea

 

anything