ZacharyZhang-NY
8be66c09f2
Palette cycling, sky, sun and moon, clouds, starfield, rain, snow, petals, leaves, fireflies, waterfall, ocean, campfire, lava, aurora, lightning, mountains and a season scene; scanlines, vignette, screen shake, flash, dither fades, iris wipes, dissolves, mosaics, glitches, sparkles, explosions and confetti. Home opens on a live scene in the palette's season and a strip of all eight palettes. pixel adds Canvas.Cycled, Sprite.At, SpriteOf, Kit.Toward and Kit.Shot, which spends a cue under Reduce Motion so it never replays; display exports Reduce. Gallery grids and the sidebar are one Tab stop each.
33 lines
863 B
Go
33 lines
863 B
Go
package fx
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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 PetalsOptions struct {
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// Width and Height are dots; zeros mean 160 by 96.
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Width, Height int
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Label string
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}
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// Petals fall on a breeze, turning as they go.
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func Petals(c *ui.Context, o PetalsOptions) *ui.Element {
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k := pixel.K(c)
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w, h := size("Petals", o.Width, o.Height, 160, 96)
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return box(c, k, o.Label, w, h).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Clip(0, 0, g.W, g.H, func() { petals(g, g.Step(8)) })
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})
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}
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// petals fall a row a step, drifting left every three.
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func petals(g pixel.Canvas, step int) {
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for i := range g.W * g.H / 260 {
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y := wrap(rnd(i, 50)+step, g.H+6) - 3
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x := wrap(rnd(i, 51)-step/3+sway(step+rnd(i, 52), 24, 3), g.W+4) - 2
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g.Sprite(x, y, petal, step/2+i, pixel.Ink, 1)
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}
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}
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