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.
29 lines
782 B
Go
29 lines
782 B
Go
package game
|
|
|
|
import (
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/layout"
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
|
|
)
|
|
|
|
type LetterboxOptions struct {
|
|
// Bar is each bar's height in dots; zero means 16.
|
|
Bar int
|
|
}
|
|
|
|
// Letterbox slides cutscene bars over content in four steps.
|
|
func Letterbox(c *ui.Context, on bool, o LetterboxOptions, content func()) *ui.Element {
|
|
k := pixel.K(c)
|
|
bar := pixel.Or("Letterbox Bar", o.Bar, 16)
|
|
var cover *ui.Element
|
|
e := layout.Layers(c, content, func() { cover = ui.Box(c).Fill().PassThrough() })
|
|
h := bar * k.Toward(c, e, on, 8, 4) / 4
|
|
cover.Draw(func(p *ui.Painter, r ui.Rect) {
|
|
g := k.Canvas(p, r)
|
|
g.Rect(0, 0, g.W, h, pixel.Ink)
|
|
g.Rect(0, g.H-h, g.W, h, pixel.Ink)
|
|
})
|
|
return e
|
|
}
|