35 lines
606 B
Go
35 lines
606 B
Go
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package gut
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import "time"
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type Animation interface {
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Animate(start, now time.Duration) bool
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}
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type Animations struct {
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anis []animation
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}
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type animation struct {
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start time.Duration
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ani Animation
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}
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func (a *Animations) Idle() bool {
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return len(a.anis) == 0
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}
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func (a *Animations) Start(now time.Duration, ani Animation) {
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a.anis = append(a.anis, animation{now, ani})
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}
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func (a *Animations) Animate(now time.Duration) {
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active := make([]animation, 0, len(a.anis))
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for _, ani := range a.anis {
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if ani.ani.Animate(ani.start, now) {
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active = append(active, ani)
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}
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}
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a.anis = active
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}
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