63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package feedback
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import (
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"log/slog"
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"time"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type ReadyGoOptions struct {
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// Cue starts the count each time it changes.
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Cue int
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}
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type ReadyGoResult struct {
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Element *ui.Element
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// Done comes once, as GO! shows.
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Done bool
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}
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type goKey struct{}
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// ready is a count's cue, start, and Done flag.
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type ready struct {
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n int
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at time.Time
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said bool
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}
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// ReadyGo counts 3, 2, 1, GO! in big digits.
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func ReadyGo(c *ui.Context, o ReadyGoOptions) ReadyGoResult {
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k := pixel.K(c)
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e := ui.Box(c)
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s := ui.Local(e, goKey{}, func() ready { return ready{n: o.Cue} })
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if s.n != o.Cue {
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*s = ready{n: o.Cue, at: k.Now()}
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}
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res := ReadyGoResult{Element: e}
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sec := k.Since(c, s.at, 10, 40) / 10
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// Done comes once, even when time jumps past GO!.
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if sec >= 3 && !s.said && !s.at.IsZero() {
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s.said, res.Done = true, true
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slog.Debug("8bit: ready go")
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}
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if sec >= 4 {
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return res
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}
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word := [...]string{"3", "2", "1", k.Msg("go")}[sec]
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e.Role(ui.RoleStatus).Label(word).Size(k.D(120), k.D(4*pixel.LineHeight)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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ink := pixel.Warn
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if sec == 3 {
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ink = pixel.Good
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}
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w := pixel.Measure(word) * 4
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g.Text((g.W-w)/2+2, 2, word, pixel.Shade, 4)
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g.Text((g.W-w)/2, 0, word, ink, 4)
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})
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return res
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}
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