Method process

packages/core/tests/ECS/Systems/EntitySystem.test.ts:998–1014

(entities: readonly Entity[])

                    super(Matcher.all(CComponent));
                }
                protected override process(entities: readonly Entity[]): void {
                    for (const entity of entities) {
                        const c = entity.getComponent(CComponent);
                        if (c) {
                            const a = this.scene!.findEntityById(c.aId);
                            if (a && !a.hasComponent(DComponent)) {
                                console.log('CSystem: Adding D to Entity A');
                                a.addComponent(new DComponent());
                            }
                            const b = this.scene!.findEntityById(c.bId);
                            if (b && !b.hasComponent(DComponent)) {
                                console.log('CSystem: Adding D to Entity B');
                                b.addComponent(new DComponent());
                            }
                        }
                    }
                }
            }

            // DSystem: 在 lateProcess 中移除 D 组件