69 lines
2.4 KiB
Text
69 lines
2.4 KiB
Text
# dispatch.ludic - asking a Thing its kind's questions: what it is called, what using it would do,
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# doing it, how close it is used from, and a tick for the kinds that have one
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export function thing_kind(t: Thing) -> ThingKind { return ThingKinds[t.kind] }
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# its own name, else its kind's, else ""
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export function thing_name(t: Thing) -> string {
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if t == null or not thing_kind_ok(t.kind) { return "" }
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let k = ThingKinds[t.kind]
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if k.name_of != null {
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let s = k.name_of(t)
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if s != "" { return s }
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}
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return k.name
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}
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export function thing_prompt(t: Thing) -> string {
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if t == null or not thing_kind_ok(t.kind) { return "" }
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let k = ThingKinds[t.kind]
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if k.prompt == null { return "" }
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return k.prompt(t)
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}
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# the kind does what using it does; the use is a fact whatever the kind made of it
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export function thing_use(t: Thing) -> void {
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if t == null or not thing_kind_ok(t.kind) { return }
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let k = ThingKinds[t.kind]
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th_fact(THING_USED, t)
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if k.use != null { k.use(t) }
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}
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export function thing_can_use(t: Thing) -> bool {
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return t != null and thing_kind_ok(t.kind) and ThingKinds[t.kind].use != null
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}
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# the kind's own reach question, else the Thing's reach, else the kind's
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export function thing_reach(t: Thing) -> float {
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if t == null or not thing_kind_ok(t.kind) { return 0.0 }
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let k = ThingKinds[t.kind]
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if k.reach_of != null { return k.reach_of(t) }
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if t.reach > 0.0 { return t.reach }
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return k.reach
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}
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export function thing_is_personal(t: Thing) -> bool { return thing_kind_ok(t.kind) and ThingKinds[t.kind].personal }
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# set down by someone rather than grown by the world: the kind says, and the port has the last word
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export function thing_is_put_down(t: Thing) -> bool { return ThingsWorld.put_down(t) }
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# every active Thing whose kind ticks, `hours` of the world's clock on
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export function things_tick(hours: float) -> void {
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let all = things_all()
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for i in 0 .. len(all) {
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let t = all[i]
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if not t.active or not thing_kind_ok(t.kind) { continue }
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let k = ThingKinds[t.kind]
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if k.tick != null { k.tick(t, hours) }
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}
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}
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# a restock: every Thing the world grew is back, and loses its `used` unless its kind keeps it;
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# what was put down is left as it is
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export function things_restock() -> void {
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let all = things_all()
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for i in 0 .. len(all) {
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let t = all[i]
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if thing_is_put_down(t) { continue }
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if not ThingKinds[t.kind].keeps { t.used = 0 }
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if not t.active { thing_show(t) }
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}
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}
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