Files
8bitMyGoUI/feedback/shake.go
T
ZacharyZhang-NY 8be66c09f2 Add fx components 291-320 and the home scene; Kit.Shot, Kit.Toward
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.
2026-10-12 04:05:25 -04:00

24 lines
578 B
Go

package feedback
import (
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type ShakeOptions struct {
// Cue shakes the child each time it changes.
Cue int
}
// shakes are the child's offsets in dots, a step each.
var shakes = [...]int{2, -2, 2, -2, 1, -1, 0}
// Shake jolts its child side to side briefly.
func Shake(c *ui.Context, o ShakeOptions, content func()) *ui.Element {
k := pixel.K(c)
e := ui.Box(c)
dx := shakes[k.Shot(c, e, o.Cue, 20, len(shakes)-1)]
return e.Padding(0, k.D(2-dx), 0, k.D(2+dx)).Children(content)
}