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ecs: only register events when used in a system instance

This commit is contained in:
Steven Hugg 2022-02-24 12:59:45 -06:00
parent 30db34837c
commit d87a05747e
1 changed files with 4 additions and 1 deletions
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5
src/common/ecs/ecs.ts
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@ -1117,6 +1117,7 @@ export class EntityScope implements SourceLocated {
if (!inst) throw new Error();
inst.id = this.instances.length+1;
this.instances.push(inst);
this.em.registerSystemEvents(inst.system);
return inst;
}
newSystemInstanceWithDefaults(system: System) {
@ -1649,13 +1650,15 @@ export class EntityManager {
defineSystem(system: System) {
let existing = this.systems[system.name];
if (existing) throw new ECSError(`system ${system.name} already defined`, existing);
return this.systems[system.name] = system;
}
registerSystemEvents(system: System) {
for (let a of system.actions) {
let event = a.event;
let list = this.event2systems[event];
if (list == null) list = this.event2systems[event] = [];
if (!list.includes(system)) list.push(system);
}
return this.systems[system.name] = system;
}
addArchetype(atype: EntityArchetype): EntityArchetype {
let key = atype.components.map(c => c.name).join(',');