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
1.9 KiB
Go
70 lines
1.9 KiB
Go
package shop
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/datetime"
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
|
|
)
|
|
|
|
// Bid is an offer by a bidder at a time.
|
|
type Bid struct {
|
|
Bidder string
|
|
Amount int
|
|
At time.Time
|
|
}
|
|
|
|
type BidTickerOptions struct {
|
|
Currency Currency
|
|
// Width is in dots; zero means 240.
|
|
Width int
|
|
}
|
|
|
|
// BidTicker lists bids, newest first, crowning the highest.
|
|
func BidTicker(c *ui.Context, text string, bids []Bid, o BidTickerOptions) *ui.Element {
|
|
k := pixel.K(c)
|
|
top := -1
|
|
for i, b := range bids {
|
|
amount("BidTicker", b.Amount)
|
|
if b.Bidder == "" || b.At.IsZero() {
|
|
panic(fmt.Sprintf("shop: BidTicker bid %d has no bidder or time", i))
|
|
}
|
|
// The first to reach the highest keeps the crown.
|
|
if top < 0 || b.Amount > bids[top].Amount {
|
|
top = i
|
|
}
|
|
}
|
|
list := ui.Column(c).Width(k.D(pixel.Or("BidTicker Width", o.Width, 240))).Gap(k.D(2)).Role(ui.RoleList).Label(text)
|
|
if top >= 0 {
|
|
_, word := coin(k, o.Currency)
|
|
list.Description(fmt.Sprintf(k.Msg("highest"), bids[top].Bidder, bids[top].Amount, word))
|
|
}
|
|
return list.Children(func() {
|
|
for i := len(bids) - 1; i >= 0; i-- {
|
|
b, crowned := bids[i], i == top
|
|
// New bids come in on top; rows keep keys.
|
|
ui.Row(c).Key(i).FillWidth().Gap(k.D(4)).AlignItems(ui.Center).Role(ui.RoleListItem).Children(func() {
|
|
ui.Box(c).Size(k.D(12), k.D(12)).Draw(func(p *ui.Painter, r ui.Rect) {
|
|
if crowned {
|
|
k.Canvas(p, r).Sprite(0, 0, icon.Crown, 0, pixel.Ink, 1)
|
|
}
|
|
})
|
|
ink := pixel.Ink
|
|
if crowned {
|
|
ink = pixel.Warn
|
|
}
|
|
pixel.Text(c, b.Bidder, pixel.TextOptions{Wrap: true, MaxLines: 1, Slot: ink}).Grow(1)
|
|
money(c, k, o.Currency, b.Amount, ink)
|
|
datetime.RelativeTime(c, b.At, datetime.RelativeTimeOptions{})
|
|
})
|
|
}
|
|
if len(bids) == 0 {
|
|
pixel.Text(c, k.Msg("empty"), pixel.TextOptions{Slot: pixel.Faint})
|
|
}
|
|
})
|
|
}
|