ZacharyZhang-NY
81003b21ee
Fifteen pieces of a games night: Dice, DiceTray, PlayingCard, CardHand, Deck, Chessboard, GoBoard, MahjongTile, Domino, Roulette, CoinFlip, BingoCard, TicTacToe, ScoreTrack and Meeple. Component number 500 is a meeple, which seems right. Dice tumble, coins turn and wheels spin on a cue, a frame at a time, and land at once under Reduce Motion. Hands lift the card you point at and play the one drawn on top; pieces and stones pick the lighter of Lit and Ink for White, so they read in every palette; the computer plays a fair O; FREE is a star in every language. New 12x12 icons: Spade, Club, Diamond, Meeple, King, Queen, Rook, Bishop, Knight and Pawn.
65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
package tabletop
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import (
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"math"
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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 CoinFlipOptions struct {
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// Cue tosses it: a new cue flips, then it lands.
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Cue int
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}
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// The coin's width and lift, a toss's frame by frame.
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var (
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turns = [...]int{24, 16, 6, 2, 6, 16, 24, 16, 6, 2, 6, 16}
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toss = [...]int{0, 6, 11, 14, 16, 16, 14, 11, 7, 4, 2, 0}
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)
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const coinUp = 18
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// CoinFlip tosses a coin on a new Cue.
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func CoinFlip(c *ui.Context, text string, heads bool, o CoinFlipOptions) *ui.Element {
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k := pixel.K(c)
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word := k.Msg("tails")
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if heads {
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word = k.Msg("heads")
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}
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e := ui.Column(c).Gap(k.D(2)).AlignItems(ui.Center).AlignSelf(ui.Start).Role(ui.RoleGroup).Label(text).Description(word)
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// A toss turns twelve frames; reduced, it lands at once.
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f := max(0, k.Shot(c, e, o.Cue, 15, len(turns)))
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return e.Children(func() {
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ui.Box(c).Size(k.D(26), k.D(26+coinUp)).Role(ui.RoleNone).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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w, y, up := 24, coinUp, heads
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if f < len(turns) {
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// Each half turn shows the other face.
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w, y, up = turns[f], coinUp-toss[f], heads == (f/3%2 == 0)
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}
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for dy := -12; dy <= 12; dy++ {
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half := int(math.Round(float64(w) / 2 * math.Sqrt(1-float64(dy*dy)/144)))
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g.HLine(13-half, y+12+dy, 2*half, pixel.Edge)
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if half > 1 {
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g.HLine(14-half, y+12+dy, 2*half-2, pixel.Warn)
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}
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}
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if w == 24 {
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face := icon.Star
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if up {
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face = icon.Crown
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}
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g.Sprite(7, y+6, face, 0, pixel.Ink, 1)
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}
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})
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if f >= len(turns) {
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pixel.Text(c, word, pixel.TextOptions{})
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} else {
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ui.Box(c).Height(k.D(pixel.LineHeight))
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}
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})
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}
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