61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package feedback
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import (
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"strconv"
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"time"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type LevelUpOptions struct{}
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type levelKey struct{}
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// rise is the last level seen, and when it rose.
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type rise struct {
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level int
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at time.Time
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}
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// LevelUp slides in LEVEL UP! with sparkles when level rises.
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func LevelUp(c *ui.Context, level int, o LevelUpOptions) *ui.Element {
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k := pixel.K(c)
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e := ui.Box(c)
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s := ui.Local(e, levelKey{}, func() rise { return rise{level: level} })
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if level > s.level {
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s.at = k.Now()
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}
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s.level = level
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// Ten steps a second: six slide in, twenty stay.
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step := since(c, k, s.at, 10, 26)
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if step >= 26 {
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return e
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}
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slide := 5 - min(step, 5)
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if k.Reduce() {
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slide = 0
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}
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title := k.Msg("level_up") + " LV " + strconv.Itoa(level)
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w := pixel.Measure(title)*2 + 24
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return e.Role(ui.RoleStatus).Label(title).Size(k.D(w), k.D(40)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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x := -slide * w / 5
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g.Clip(0, 0, g.W, g.H, func() {
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g.Frame(x, 4, w, 32, pixel.Window, pixel.Accent)
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g.Text(x+13, 5, title, pixel.Shade, 2)
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g.Text(x+12, 4, title, pixel.AccentInk, 2)
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})
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if slide > 0 {
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return
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}
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for i, at := range [][2]int{{2, 0}, {w - 14, 2}, {w / 2, 28}, {8, 26}} {
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if (g.Step(8)+i)%3 != 0 {
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g.Sprite(at[0], at[1], icon.Sparkle, 0, pixel.Warn, 1)
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}
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}
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})
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}
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