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.
105 lines
3.0 KiB
Go
105 lines
3.0 KiB
Go
package shop
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import (
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"fmt"
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"log/slog"
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"strconv"
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"strings"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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// Tier is a plan: its price and its perks.
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type Tier struct {
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Price int
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Perks []string
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}
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type PricingTiersOptions struct {
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Currency Currency
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Disabled bool
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}
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type PricingTiersResult struct {
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Element *ui.Element
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Changed bool
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}
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const tierW = 112
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var metals = [3]string{"bronze", "silver", "gold"}
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// PricingTiers lays bronze, silver and gold plans to choose.
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func PricingTiers(c *ui.Context, text string, tiers [3]Tier, chosen *int, o PricingTiersOptions) PricingTiersResult {
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k := pixel.K(c)
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if *chosen < -1 || *chosen > 2 {
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panic(fmt.Sprintf("shop: PricingTiers choice %d", *chosen))
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}
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sp, word := coin(k, o.Currency)
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most := 0
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for _, t := range tiers {
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amount("PricingTiers price", t.Price)
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for _, p := range t.Perks {
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if p == "" {
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panic("shop: PricingTiers has an empty perk")
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}
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}
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most = max(most, len(t.Perks))
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}
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// Band, name, price, perks, then the foot line under them.
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h := 8 + pixel.LineHeight + 4 + 2*pixel.LineHeight + 2 + most*pixel.LineHeight + pixel.LineHeight + 7
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old := *chosen
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var res PricingTiersResult
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res.Element = ui.Row(c).Gap(k.D(6)).FocusGroup(ui.Horizontal).Role(ui.RoleRadioGroup).Label(text).Children(func() {
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for i, t := range tiers {
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name, price := k.Msg(metals[i]), strconv.Itoa(t.Price)
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sel := *chosen
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// The shell draws the card; the radio stays bare.
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shell, base, st := pixel.Shell(c, func() *ui.Element {
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return ui.RadioBase(c, &sel, i).Label(name + ", " + price + " " + word).Disabled(o.Disabled)
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})
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// The radio picks before it is told it is off.
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if sel != *chosen && !base.IsDisabled() {
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*chosen = sel
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}
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base.Description(strings.Join(t.Perks, ", "))
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on := i == *chosen
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shell.Size(k.D(tierW), k.D(h)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Frame(0, 0, tierW, h, pixel.Raised, pixel.Face)
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// A band in medal metal; the name sits on Face.
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band := []pixel.Slot{pixel.Warn, pixel.Lit, pixel.Warn}[i]
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g.Rect(2, 2, tierW-4, 6, band)
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if i == 0 {
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g.Veil(2, 2, tierW-4, 6, pixel.Bad, 8)
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}
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g.Text((tierW-pixel.Measure(name))/2, 10, name, pixel.Ink, 1)
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y := 10 + pixel.LineHeight + 4
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g.Sprite((tierW-pixel.Measure(price)*2-14)/2, y+6, sp, 0, pixel.Ink, 1)
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g.Text((tierW-pixel.Measure(price)*2-14)/2+14, y, price, pixel.Ink, 2)
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y += 2*pixel.LineHeight + 2
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for _, perk := range t.Perks {
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g.Text(6, y, "•", pixel.Accent, 1)
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g.Text(14, y, pixel.Wrap(perk, tierW-18, 1)[0], pixel.Faint, 1)
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y += pixel.LineHeight
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}
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foot, ink := k.Msg("choose"), pixel.Faint
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if on {
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foot, ink = k.Msg("chosen"), pixel.Accent
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g.Rect(0, 0, tierW, 2, pixel.Accent)
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g.Rect(0, h-2, tierW, 2, pixel.Accent)
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}
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g.Text((tierW-pixel.Measure(foot))/2, h-pixel.LineHeight-3, foot, ink, 1)
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g.Finish(st)
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})
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}
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})
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res.Changed = *chosen != old
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if res.Changed {
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slog.Debug("8bit: pricing tier", "label", text, "tier", *chosen)
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}
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return res
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}
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