SpringAnimations #600
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SpringAnimations #600
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Includes `Spring` struct, and variables in `C4ViewAnimation` for
handling the application of springs.
Example:
```
let view = C4View(frame: canvas.frame)
let c = C4Circle(center: C4Point(), radius: 50)
canvas.add(c)
C4ShapeLayer.disableActions = false
canvas.addTapGestureRecognizer { (location, state) -> () in
let a = C4ViewAnimation(duration: 1.0) {
c.center = location
c.fillColor = C4Color(red: random01(), green: random01(), blue:
random01(), alpha: 1.0)
}
a.spring = Spring(damping:0.5)
a.animate()
}
```
Includes:
- Initializer for C4Shape(shape: C4Shape)
- Initializer for C4Image() //empty image
- Initializing contents of C4Shape to a {1,1} clear image, otherwise
animating between nil and cgimageref doesn’t animate
Fixes: #592
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