36 lines
856 B
Go
36 lines
856 B
Go
package display
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import (
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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 FlagOptions struct {
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// Slot is the cloth; zero means Bad.
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Slot pixel.Slot
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Scale int
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Label string
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}
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// Flag waves on its pole, stepped at 6 fps.
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func Flag(c *ui.Context, o FlagOptions) *ui.Element {
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k, sc := pixel.K(c), scale(o.Scale)
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cloth := slotOr(o.Slot, pixel.Bad)
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return art(c, k, o.Label, 20*sc, 26*sc, func(g pixel.Canvas) {
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step := g.Step(6)
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g.Rect(sc, 2*sc, sc, 24*sc, pixel.Edge)
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g.Rect(0, 0, 3*sc, 2*sc, pixel.Warn)
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for col := range 16 {
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dy := [4]int{0, 1, 1, 0}[(step+col/4)%4]
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x, y := (2+col)*sc, (3+dy)*sc
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g.Rect(x, y, sc, 10*sc, cloth)
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if (step+col/4)%4 == 2 {
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g.Rect(x, y, sc, 10*sc, pixel.Shade)
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g.Veil(x, y, sc, 10*sc, cloth, 8)
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}
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g.Rect(x, y, sc, sc, pixel.Lit)
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}
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})
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}
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