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
2.0 KiB
Go
70 lines
2.0 KiB
Go
package shop
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import (
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"fmt"
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"log/slog"
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"strings"
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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/navigation"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type CheckoutOptions struct {
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Disabled bool
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}
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type CheckoutResult struct {
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Element *ui.Element
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// Done reports the order placed this frame.
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Changed, Done bool
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}
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// Checkout walks CART, PAY and CONFIRM, then says THANK YOU!
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func Checkout(c *ui.Context, text string, step *int, o CheckoutOptions, content func()) CheckoutResult {
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k := pixel.K(c)
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labels := strings.Fields(k.Msg("checkout_steps"))
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last := len(labels) - 1
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if *step < 0 || *step > last {
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panic(fmt.Sprintf("shop: Checkout step %d of %d", *step, len(labels)))
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}
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old := *step
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var res CheckoutResult
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res.Element = ui.Column(c).Gap(k.D(6)).Role(ui.RoleGroup).Label(text).Children(func() {
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navigation.Steps(c, labels, *step, navigation.StepsOptions{})
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if *step == last {
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pixel.Text(c, k.Msg("thank_you"), pixel.TextOptions{Slot: pixel.Good, Scale: 2})
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return
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}
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// A wrapper per step keeps NEXT in place; off, veiled.
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in := pixel.Current(c)
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in.Inert = in.Inert || o.Disabled
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ui.Column(c).Key(*step).Children(func() { pixel.Scope(c, in, content) }).DrawOver(func(p *ui.Painter, r ui.Rect) {
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if o.Disabled {
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g := k.Canvas(p, r)
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g.Checker(0, 0, g.W, g.H, pixel.Face)
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}
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})
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ui.Row(c).Gap(k.D(6)).Children(func() {
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if input.Button(c, k.Msg("back"), input.ButtonOptions{Disabled: o.Disabled || *step == 0}).Clicked {
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*step--
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}
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// The last step before THANK YOU! places the order.
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next := k.Msg("next_step")
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if *step == last-1 {
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next = k.Msg("place_order")
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}
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if input.Button(c, next, input.ButtonOptions{Variant: input.Primary, Disabled: o.Disabled}).Clicked {
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*step++
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}
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})
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})
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res.Changed, res.Done = *step != old, *step == last && old != last
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if res.Changed {
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slog.Debug("8bit: checkout", "label", text, "step", *step)
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}
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return res
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}
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