ZacharyZhang-NY
b4b4d67b92
A cross-cutting pass, each fix with a test that failed first. Veils: MyGo still hands a key to a base that turned off this frame, so every element key now goes through pixel.Shortcut, which an archtest enforces. Input handlers record and the build applies them only while enabled; the editor turns away a veil-frame letter or copy; value bases get a copy and keep only enabled turns. Popups give a held focus back to their opener when the veil lifts. Motion: S5 is enforced at the clock. Every Tick, Since, Step, Toward and Shot runs at 4-15 fps; blinks keep 1 Hz on 4 fps steps, fast animations step at 15, and drawn time is quantized to frames. Clocks stepping back: Since holds at zero without overflow, and k.Elapsed moves a stored start to now, so nothing goes negative, runs backward or indexes out of range. Also: logs count typed text instead of holding it, gallery names use glyphs the font has, removable rows are keyed, components take their own Options (archtest), and sweeps over all 508 demos check veiled keys, clicks, wheels, the clock stepping back and names.
87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
package game
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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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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/data"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type HotbarOptions struct {
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Disabled bool
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}
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type HotbarResult struct {
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Element *ui.Element
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Changed bool
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// Used is the slot used this frame, or -1.
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Used int
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}
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type wheelKey struct{}
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// wheel holds unspent scroll and a turn not yet reported.
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type wheel struct {
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left float32
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moved bool
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}
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// Hotbar rows nine slots; 1–9, arrows or the wheel choose.
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func Hotbar(c *ui.Context, text string, items []data.Item, selected *int, o HotbarOptions) HotbarResult {
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k := pixel.K(c)
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n := len(items)
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if n == 0 || n > 9 || *selected < 0 || *selected >= n {
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panic(fmt.Sprintf("game: Hotbar slot %d of %d; it holds 1–9", *selected, n))
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}
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old := *selected
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shell, base, st, used := pixel.Pad(c, text, n, n, data.SlotSize, data.SlotSize, selected, o.Disabled)
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for i := range n {
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if pixel.Shortcut(base, 0, ui.Key1+ui.Key(i)) {
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*selected = i
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}
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}
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wh := ui.Local(base, wheelKey{}, func() wheel { return wheel{} })
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notch := k.D(pixel.LineHeight)
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// The handler runs before this frame knows it is off.
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base.HandleInput(func(ev ui.InputEvent) bool {
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if ev.Kind != ui.InputScroll {
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return false
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}
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wh.left += ev.DY
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return true
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})
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if base.IsDisabled() {
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wh.left = 0
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}
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// A notch moves one slot; the bar wraps around.
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for wh.left >= notch || wh.left <= -notch {
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d := 1
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if wh.left < 0 {
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d = -1
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}
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wh.left -= float32(d) * notch
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*selected, wh.moved = ((*selected+d)%n+n)%n, true
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}
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res := HotbarResult{Element: shell, Changed: *selected != old || wh.moved, Used: used}
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wh.moved = false
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base.Description(items[*selected].String())
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if res.Changed {
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slog.Debug("8bit: hotbar", "label", text, "slot", *selected)
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}
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sel, shown := *selected, append([]data.Item(nil), items...)
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shell.Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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for i, it := range shown {
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x := i * data.SlotSize
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data.DrawSlot(g, x, 0, it, data.ItemSlotOptions{Selected: i == sel})
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g.Micro(x+3, 3, strconv.Itoa(i+1), pixel.Faint, 1)
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}
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g.Finish(st)
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})
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return res
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}
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