66 lines
1.3 KiB
JavaScript
66 lines
1.3 KiB
JavaScript
import {System} from '@/ecs/index.js';
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import SpatialHash from '@/util/spatial-hash.js';
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export default class MaintainColliderHash extends System {
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hash;
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deindex(entities) {
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super.deindex(entities);
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for (const id of entities) {
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this.hash.remove(id);
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}
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}
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static get priority() {
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return {
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after: 'IntegratePhysics',
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};
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}
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reindex(entities) {
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for (const id of entities) {
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if (1 === id) {
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const {AreaSize} = this.ecs.get(1);
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if (AreaSize) {
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this.hash = new SpatialHash(AreaSize);
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}
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}
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}
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super.reindex(entities);
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for (const id of entities) {
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this.updateHash(this.ecs.get(id));
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}
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}
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updateHash(entity) {
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if (!entity.Collider || !this.hash) {
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return;
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}
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this.hash.update(entity.Collider.aabb, entity.id);
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}
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tick() {
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for (const entity of this.ecs.changed(['Direction'])) {
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if (!entity.Collider) {
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continue;
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}
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entity.Collider.updateAabbs();
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}
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for (const entity of this.ecs.changed(['Position'])) {
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this.updateHash(entity);
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}
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}
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within(query) {
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const within = new Set();
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if (this.hash) {
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for (const id of this.hash.within(query)) {
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within.add(this.ecs.get(id));
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}
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}
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return within;
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}
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}
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