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fix(spatial): 修复 GridAOI 可见性更新问题

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- 修复 addObserver 时现有观察者无法检测到新实体的问题
- 修复实体远距离移动时观察者可见性未正确更新的问题
- 重构 demos 抽取公共测试工具
This commit is contained in:
yhh
2025-12-26 22:23:03 +08:00
parent 881ffad3bc
commit d66c18041e
9 changed files with 103 additions and 118 deletions
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63
packages/framework/spatial/src/aoi/GridAOI.ts
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@@ -107,8 +107,13 @@ export class GridAOI<T> implements IAOIManager<T> {
this._observers.set(entity, data);
this._addToCell(cellKey, data);
// Initial visibility check
// Initial visibility check for this observer
this._updateVisibility(data);
// Notify other observers about this new entity
if (data.observable) {
this._updateObserversOfEntity(data);
}
}
/**
@@ -398,40 +403,32 @@ export class GridAOI<T> implements IAOIManager<T> {
* @en Update other observers' visibility of an entity
*/
private _updateObserversOfEntity(movedData: AOIObserverData<T>): void {
const cellRadius = Math.ceil(this._getMaxViewRange() / this._cellSize) + 1;
const centerCell = this._getCellCoords(movedData.position);
// Check all observers for visibility changes
// This handles both: observers who can now see the entity (enter)
// and observers who could see it before but can't anymore (exit)
for (const [, otherData] of this._observers) {
if (otherData === movedData) continue;
for (let dx = -cellRadius; dx <= cellRadius; dx++) {
for (let dy = -cellRadius; dy <= cellRadius; dy++) {
const cellKey = `${centerCell.x + dx},${centerCell.y + dy}`;
const cell = this._cells.get(cellKey);
if (!cell) continue;
const distSq = distanceSquared(otherData.position, movedData.position);
const wasVisible = otherData.visibleEntities.has(movedData.entity);
const isVisible = distSq <= otherData.viewRangeSq;
for (const otherData of cell) {
if (otherData === movedData) continue;
const distSq = distanceSquared(otherData.position, movedData.position);
const wasVisible = otherData.visibleEntities.has(movedData.entity);
const isVisible = distSq <= otherData.viewRangeSq;
if (isVisible && !wasVisible) {
otherData.visibleEntities.add(movedData.entity);
this._emitEvent({
type: 'enter',
observer: otherData.entity,
target: movedData.entity,
position: movedData.position
}, otherData);
} else if (!isVisible && wasVisible) {
otherData.visibleEntities.delete(movedData.entity);
this._emitEvent({
type: 'exit',
observer: otherData.entity,
target: movedData.entity,
position: movedData.position
}, otherData);
}
}
if (isVisible && !wasVisible) {
otherData.visibleEntities.add(movedData.entity);
this._emitEvent({
type: 'enter',
observer: otherData.entity,
target: movedData.entity,
position: movedData.position
}, otherData);
} else if (!isVisible && wasVisible) {
otherData.visibleEntities.delete(movedData.entity);
this._emitEvent({
type: 'exit',
observer: otherData.entity,
target: movedData.entity,
position: movedData.position
}, otherData);
}
}
}