ZacharyZhang-NY
5605d785de
Fifteen shop components: PriceTag, Wallet, ShopItem, Cart, Receipt, Checkout, CurrencyConvert, SaleBadge, Quantity, PricingTiers, Coupon, DailyReward, BidTicker, TradeWindow and VendingMachine. Receipt prints dot by dot with feed holes and a torn edge; Coupon cuts real notches; SaleBadge is a sixteen-point starburst; VendingMachine sells A1 to D4 by code and drops the snack into its tray. Sums are checked against overflow, TradeWindow withdraws both confirms on any change to an offer, and a disabled Checkout veils its inert content. text.Odometer now counts digits as text, steps at 15 fps as S5 asks, draws exact digits at rest and lands rolls that floats would stall.
70 lines
2.2 KiB
Go
70 lines
2.2 KiB
Go
package shop
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import (
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"fmt"
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"log/slog"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/input"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/layout"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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// Ware is something for sale.
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type Ware struct {
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Name string
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// Sprite is at most 16 dots square.
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Sprite *pixel.Sprite
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Price int
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// Was is the price before a sale; zero means none.
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Was int
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Currency Currency
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}
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type ShopItemOptions struct {
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// Short says the wallet cannot pay; BUY turns off.
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Short bool
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Disabled bool
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}
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type ShopItemResult struct {
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Element *ui.Element
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Bought bool
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}
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// ShopItem is a ware's sprite, name, price and BUY.
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func ShopItem(c *ui.Context, w Ware, o ShopItemOptions) ShopItemResult {
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k := pixel.K(c)
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if w.Name == "" || w.Sprite == nil || w.Sprite.W > 16 || w.Sprite.H > 16 {
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panic(fmt.Sprintf("shop: ShopItem %q needs a sprite of 16 dots at most", w.Name))
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}
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var res ShopItemResult
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res.Element = layout.Panel(c, layout.PanelOptions{Style: pixel.Raised}, func() {
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ui.Column(c).Width(k.D(96)).Gap(k.D(3)).AlignItems(ui.Center).Children(func() {
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ui.Box(c).Size(k.D(32), k.D(32)).Draw(func(p *ui.Painter, r ui.Rect) {
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k.Canvas(p, r).Sprite(16-w.Sprite.W, 16-w.Sprite.H, w.Sprite, 0, pixel.Ink, 2)
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})
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name := pixel.Wrap(w.Name, 92, 1)[0]
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ui.Box(c).FillWidth().Height(k.D(pixel.LineHeight)).Role(ui.RoleText).Label(w.Name).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Text((g.W-pixel.Measure(name))/2, 0, name, pixel.Ink, 1)
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})
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PriceTag(c, w.Price, PriceTagOptions{Was: w.Was, Currency: w.Currency})
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res.Bought = input.Button(c, k.Msg("buy"), input.ButtonOptions{Variant: input.Primary, Size: input.Small, Disabled: o.Disabled || o.Short, Label: k.Msg("buy") + " " + w.Name}).Clicked
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// The line is kept, so shelves of cards stay even.
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short := ""
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if o.Short {
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short = k.Msg("not_enough")
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}
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ui.Box(c).Size(k.D(pixel.Measure(short)), k.D(pixel.LineHeight)).Role(ui.RoleText).Label(short).Draw(func(p *ui.Painter, r ui.Rect) {
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k.Canvas(p, r).Text(0, 0, short, pixel.Bad, 1)
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})
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})
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})
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if res.Bought {
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slog.Debug("8bit: shop buy", "ware", w.Name)
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}
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return res
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}
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