Orkuncakilkaya
19fcf60599
ludic migrate state packages <every example program> packages/ludic.lab/example/plate.ludic 1804 vars into 126 states, 64 into lets; 23498 edits in 460 files Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
61 lines
2.5 KiB
Text
61 lines
2.5 KiB
Text
# ui_hold.ludic — on-hold fires every frame a button is held, by the pointer (still when it is dragged
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# off, until let go) or by Enter or the pad's A on the focus, with event.dt and event.t on the ui clock,
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# the same at 60 and 240 Hz; on-down and on-up still mark the ends.
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import "ludic.ui"
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program UiHold {
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numbers float
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state UiHoldState {
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now: float = 0.0
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held: float = 0.0
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frames: int = 0
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last_t: float = 0.0
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ends: string = ""
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}
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view Craft (ui_hold_st: mut UiHoldState) {
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on tick(dt: float, t: float) {
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ui_hold_st.held = ui_hold_st.held + dt
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ui_hold_st.frames = ui_hold_st.frames + 1
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ui_hold_st.last_t = t
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}
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on down() { ui_hold_st.ends = ui_hold_st.ends + "d" }
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on up() { ui_hold_st.ends = ui_hold_st.ends + "u" }
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}
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const PAGE: string = "<ui><screen name='h'><button on-hold='tick(event.dt, event.t)' on-down='down()' on-up='up()'>Make</button></screen></ui>"
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function clock(ui_hold_st: UiHoldState) -> float { return ui_hold_st.now }
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function frame(ui_st: mut UiState, i: UiInput) -> UiNode {
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ui_input(ui_st, i)
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ui_show(ui_st, "h", view_craft(), 0.0, 0.0, 400.0, 400.0)
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let r: UiNode = ui_nodes(ui_st, "h", view_craft())
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ui_place(ui_st, r, 0.0, 0.0, 400.0, 400.0)
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return r.children[0]
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}
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# held for `secs` at `hz`, by the pointer (off the button after the first frame) or by A
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function hold(ui_hold_st: mut UiHoldState, ui_st: mut UiState, b: UiNode, secs: float, hz: int, pad: bool) -> string {
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ui_hold_st.held = 0.0
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ui_hold_st.frames = 0
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let n = int(secs * float(hz) + 0.5)
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for k in 0 .. n + 1 {
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let i = new UiInput
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i.pad_a = pad
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i.down = not pad
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i.x = b.x + 5.0
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i.y = b.y + 5.0
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if k > 0 and not pad { i.x = 390.0 }
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frame(ui_st, i)
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ui_hold_st.now = ui_hold_st.now + 1.0 / float(hz)
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}
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frame(ui_st, new UiInput)
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ui_hold_st.now = ui_hold_st.now + 1.0 / float(hz)
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return `{ui_hold_st.frames} frames {int(Math.round(ui_hold_st.held * 1000.0))} ms t {int(Math.round(ui_hold_st.last_t * 1000.0))}`
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}
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entry (ui_hold_st: mut UiHoldState, ui_st: mut UiState) {
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ui_backend(ui_st, new UiBackend)
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ui_clock(ui_st, fn clock)
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ui_load_text(ui_st, PAGE, "h.xml")
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let b = frame(ui_st, new UiInput)
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let slow = hold(ui_hold_st, ui_st, b, 0.5, 60, false)
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let fast = hold(ui_hold_st, ui_st, b, 0.5, 240, false)
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let pad = hold(ui_hold_st, ui_st, b, 0.25, 60, true)
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print(`{slow} | {fast} | pad {pad} | {ui_hold_st.ends}`)
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}
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}
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