57 lines
976 B
Go
57 lines
976 B
Go
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package tins2020
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import "time"
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type Animation struct {
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active bool
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start time.Time
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interval time.Duration
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lastUpdate time.Duration
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}
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func NewAnimation(interval time.Duration) Animation {
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return Animation{
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active: true,
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start: time.Now(),
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interval: interval,
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}
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}
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func NewAnimationPtr(interval time.Duration) *Animation {
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ani := NewAnimation(interval)
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return &ani
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}
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func (a *Animation) Animate() bool {
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since := time.Since(a.start)
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if !a.active || since < a.lastUpdate+a.interval {
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return false
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}
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a.lastUpdate += a.interval
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return true
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}
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func (a *Animation) AnimateFn(fn func()) {
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since := time.Since(a.start)
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for a.active && since > a.lastUpdate+a.interval {
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fn()
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a.lastUpdate += a.interval
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}
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}
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func (a *Animation) Pause() {
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a.active = false
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}
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func (a *Animation) Run() {
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if a.active {
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return
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}
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a.active = true
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a.start = time.Now()
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}
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func (a *Animation) SetInterval(interval time.Duration) {
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a.interval = interval
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}
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