106 lines
3.9 KiB
Text
106 lines
3.9 KiB
Text
# rail.ludic - the rail: once a pass (a second by default) the most urgent true cards, up to a few,
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# muted ones left out; in a tie the registry's order decides
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export state HintsState {
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hn_mute: []bool = null
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hn_foreign: []string = null # muted keys with no card in this build, written back as read
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hn_shown: int = 3 # how many the rail holds
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hn_every: float = 1.0 # seconds between passes
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hn_top: []int = null # the cards on the rail this pass
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hn_n: int = 0
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hn_t: float = 0.0 # seconds to the next pass
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hn_pick: int = 0 # which chip the key would open
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hn_card: int = -1 # the card being read, or -1
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hn_facts: Queue<HintsFact> = null
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}
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export function hints_facts(base_st: mut BaseState, hints_st: mut HintsState) -> Queue<HintsFact> {
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if hints_st.hn_facts == null { hints_st.hn_facts = queue_new(base_st, "hints.facts") }
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return hints_st.hn_facts
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}
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function hn_fact(base_st: mut BaseState, hints_st: mut HintsState, what: int, card: int) -> void {
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let f = new HintsFact
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f.what = what
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f.card = card
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q_push(base_st, hints_facts(base_st, hints_st), f)
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}
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# how many the rail holds and how often it is sorted
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export function hints_config(hints_st: mut HintsState, shown: int, every: float) -> void {
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hints_st.hn_shown = shown
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hints_st.hn_every = every
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hints_st.hn_top = null
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}
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function hn_ensure(hints_st: mut HintsState) -> void {
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if hints_st.hn_top == null or len(hints_st.hn_top) != hints_st.hn_shown {
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hints_st.hn_top = new []int
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for i in 0 .. hints_st.hn_shown { push(hints_st.hn_top, -1) }
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}
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hn_mute_ensure(hints_st)
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}
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# the next pass comes on the next tick rather than in a second
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export function hints_refresh(hints_st: mut HintsState) -> void { hints_st.hn_t = 0.0 }
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export function hints_tick(hints_st: mut HintsState, dt: float) -> void {
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hn_ensure(hints_st)
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hints_st.hn_t = hints_st.hn_t - dt
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if hints_st.hn_t > 0.0 { return }
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hints_st.hn_t = hints_st.hn_every
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hints_sort(hints_st)
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}
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# one pass now: the rail re-sorted, the pick kept in range, and the card following its subject
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# along the rail - or put down when what it was about stopped being true
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export function hints_sort(hints_st: mut HintsState) -> void {
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hn_ensure(hints_st)
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hints_st.hn_n = 0
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let on = HintsWorld.showing()
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for u in 0 .. 4 {
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let want = HINTS_URGENT - u
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for id in 0 .. HINT_COUNT {
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if not on or hints_st.hn_n >= hints_st.hn_shown { break }
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if Hints[id].urgency != want or hints_muted(hints_st, id) { continue }
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if not HintsWorld.true_now(id) { continue }
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hints_st.hn_top[hints_st.hn_n] = id
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hints_st.hn_n += 1
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}
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}
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if hints_st.hn_pick >= hints_st.hn_n { hints_st.hn_pick = 0 }
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if hints_st.hn_card < 0 { return }
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if not on or hints_muted(hints_st, hints_st.hn_card) or not HintsWorld.true_now(hints_st.hn_card) {
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hints_st.hn_card = -1
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return
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}
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for k in 0 .. hints_st.hn_n { if hints_st.hn_top[k] == hints_st.hn_card { hints_st.hn_pick = k } }
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}
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# the cards on the rail, most urgent first (empty while the rail is not showing)
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export function hints_rail(hints_st: mut HintsState) -> []int {
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hn_ensure(hints_st)
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let out = new []int
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if not HintsWorld.showing() { return out }
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for k in 0 .. hints_st.hn_n { push(out, hints_st.hn_top[k]) }
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return out
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}
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export function hints_count(hints_st: HintsState) -> int { return hints_st.hn_n }
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export function hints_at(hints_st: HintsState, k: int) -> int {
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if k < 0 or k >= hints_st.hn_n { return -1 }
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return hints_st.hn_top[k]
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}
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export function hints_pick(hints_st: HintsState) -> int { return hints_st.hn_pick }
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export function hints_hot(hints_st: HintsState, k: int) -> bool { return k == hints_st.hn_pick }
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export function hints_reset(base_st: mut BaseState, hints_st: mut HintsState) -> void {
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hints_st.hn_top = null
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hints_st.hn_n = 0
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hints_st.hn_t = 0.0
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hints_st.hn_pick = 0
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hints_st.hn_card = -1
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q_clear(base_st, hints_facts(base_st, hints_st))
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}
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