ludic/packages/ludic.fishing/facts.ludic

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# facts.ludic - a fishing fact's record: one no drain holds any more, made fresh (and kept) only when
# every one is held. A cast, a bite, every crossing and run of a fight is a fact, and a record a fact
# is never given back (the ludic.wildlife idiom, facts.ludic there)
function fishing_fact_record(fishing_st: mut FishingState) -> FishingFact {
if fishing_st.fishing_fnext[0] >= len(fishing_st.fishing_ffree) {
q_unheld(fishing_st.fishing_fact_q, fishing_st.fishing_fpool, fishing_st.fishing_ffree)
fishing_st.fishing_fnext[0] = 0
}
if fishing_st.fishing_fnext[0] < len(fishing_st.fishing_ffree) {
let f = fishing_st.fishing_ffree[fishing_st.fishing_fnext[0]]
fishing_st.fishing_fnext[0] += 1
return f
}
return fishing_fact_more(fishing_st)
}
@alloc_ok("a new peak of facts held at once, past the 64 made at the start; kept and reused")
function fishing_fact_more(fishing_st: mut FishingState) -> FishingFact {
let f = new FishingFact
push(fishing_st.fishing_fpool, f)
return f
}
# the records made at the start, with a free list of room for them all
function fishing_fpool_new() -> []FishingFact {
let l = new []FishingFact
for i in 0 .. 64 { push(l, new FishingFact) }
return l
}
function fishing_ffree_new() -> []FishingFact {
let l = fishing_fpool_new()
List.clear(l)
return l
}
# how many fact records have ever been made: the peak held at once, not the facts said
export function fishing_fact_records(fishing_st: FishingState) -> int { return len(fishing_st.fishing_fpool) }