优化 ECS 和 MVVM 相关代码的性能与可读性

- ECS.ts: 简化实体创建的类型转换,修复实体复用时的 isValid 标记逻辑
- ECSEntity.ts: 添加辅助方法注释,优化组件属性访问
- VMBase.ts: 优化路径解析逻辑
- CCView.ts: 重构 MVVM 路径替换和 VM 组件获取逻辑,提升性能
- GamePrefabDecorator.ts: 优化装饰器中的类型转换

所有变更均为内部实现优化,不影响对外 API
This commit is contained in:
dgflash
2026-02-26 22:52:49 +08:00
parent 13cfa37bf3
commit 2efe3a1982
5 changed files with 47 additions and 79 deletions

View File

@@ -186,16 +186,14 @@ export namespace ecs {
// 缓存中没有同类实体,则创建一个新的
if (!entity) {
entity = new ctor();
(entity as ECSEntity).eid = ECSModel.eid++; // 实体唯一编号
(entity as ECSEntity).name = entityName;
entity.eid = ECSModel.eid++; // 实体唯一编号
entity.name = entityName;
}
// 触发实体初始化逻辑
const entityWithInit = entity as ECSEntity & { init?: () => void };
if (entityWithInit.init) {
entityWithInit.isValid = true;
entityWithInit.init();
}
entity.isValid = true; // 无论新建还是复用,都标记为有效
if (entityWithInit.init) entityWithInit.init();
ECSModel.eid2Entity.set((entity as ECSEntity).eid, entity as ECSEntity);
return entity;
@@ -267,7 +265,7 @@ export namespace ecs {
/** 创建实体 */
function createEntity<E extends Entity = Entity>(): E {
const entity = new Entity();
(entity as ECSEntity).eid = ECSModel.eid++; // 实体id也是有限的资源
entity.eid = ECSModel.eid++; // 实体id也是有限的资源
ECSModel.eid2Entity.set((entity as ECSEntity).eid, entity as ECSEntity);
return entity as E;
}
@@ -278,7 +276,7 @@ export namespace ecs {
*/
function createEntityWithComp<T extends IComp>(ctor: CompCtor<T>): T {
const entity = createEntity();
return (entity as ECSEntity).add(ctor);
return entity.add(ctor);
}
//#region 过滤器

View File

@@ -76,8 +76,14 @@ function destroyEntity(entity: ECSEntity): void {
}
// 限制对象池大小,防止内存无限增长
if (entitys.length < ECSModel.MAX_ENTITY_POOL_SIZE) {
// 池未满:保留 Uint32Array仅清空位图复用时零开销
entity.getMask().clear();
entitys.push(entity);
}
else {
// 池已满:实体真正丢弃,将 Uint32Array 回收到 MaskPool 供后续复用
entity.getMask().destroy();
}
ECSModel.eid2Entity.delete(entity.eid);
}
else {
@@ -342,9 +348,6 @@ export class ECSEntity {
// 清理缓存的组件对象,防止内存泄漏
this.compTid2Obj.clear();
// 回收 mask 到对象池
this.mask.destroy();
}
private _remove(comp: CompType<ecs.IComp>): void {

View File

@@ -28,7 +28,7 @@ export class VMBase extends Component {
templateMode = false;
/** watch 多路径 */
protected watchPathArr: string[] = [];
watchPathArr: string[] = [];
/** 储存模板多路径的值 */
protected templateValueArr: any[] = [];

View File

@@ -83,18 +83,24 @@ export abstract class CCView<T extends CCEntity> extends GameComponent implement
* 需要绑定的私有数据
* 注意:子类应该显式初始化此属性
*/
protected data?: any;
protected data?: object;
/**
* 组件加载时调用
* 注意:如果子类需要覆盖此方法,必须调用 super.onLoad()
*/
onLoad() {
// 只有启用 MVVM 且数据存在时才初始化 VM
// 使用位运算优化布尔判断(虽然现代引擎已优化,但这是极致优化)
if (this.mvvm && this.data !== undefined && this.data !== null) {
this.initializeVM();
if (!this.mvvm) return;
// onBind 语义为"绑定初始化",与 data 是否存在解耦,始终调用
this.onBind();
if (this.data === undefined || this.data === null) {
console.warn(`[CCView] ${this.constructor.name}: mvvm=true 但 data 未定义VM 绑定已跳过`);
return;
}
this.initializeVM();
}
/**
@@ -102,19 +108,13 @@ export abstract class CCView<T extends CCEntity> extends GameComponent implement
* @private
*/
private initializeVM() {
this.onBind();
// 优化:使用模板字符串(现代引擎优化更好),并缓存 uuid
// 使用 split/join 替换 uuid 中所有的点,避免 VM.add 内部校验失败
const uuid = this.node.uuid;
// 优化:只在必要时替换点号,使用更快的 replaceAll如果支持
this.tag = `_temp<${uuid.replace('.', '')}>`;
this.tag = `_temp<${uuid.split('.').join('')}>`;
VM.add(this.data!, this.tag);
// 搜寻所有节点:找到 watch path
const comps = this.getVMComponents();
const len = comps.length;
// 优化:避免属性查找,缓存 tag
const tag = this.tag;
for (let i = 0; i < len; i++) {
this.replaceVMPath(comps[i], tag);
@@ -139,70 +139,37 @@ export abstract class CCView<T extends CCEntity> extends GameComponent implement
* 替换 VM 组件的路径
* @private
*/
private replaceVMPath(comp: Component, tag: string) {
// 优化:使用 any 类型避免多次类型转换
const vmComp: any = comp;
const path: string = vmComp.watchPath;
// 优化:使用严格相等避免类型转换
if (vmComp.templateMode === true) {
const pathArr: string[] = vmComp.watchPathArr;
if (pathArr) {
const len = pathArr.length;
// 优化:避免在循环中重复声明变量
for (let i = 0; i < len; i++) {
// 优化:直接修改数组元素,避免中间变量
pathArr[i] = pathArr[i].replace('*', tag);
}
}
}
else if (path) {
// 优化:使用 startsWith 比 split 更快
// 优化:避免不必要的 split 操作
if (path.charCodeAt(0) === 42) { // 42 是 '*' 的字符码
vmComp.watchPath = path.replace('*', tag);
private replaceVMPath(comp: VMBase, tag: string) {
if (comp.templateMode) {
const pathArr = comp.watchPathArr;
const len = pathArr.length;
for (let i = 0; i < len; i++) {
pathArr[i] = pathArr[i].replace('*', tag);
}
} else if (comp.watchPath.charCodeAt(0) === 42) { // 42 是 '*' 的字符码
comp.watchPath = comp.watchPath.replace('*', tag);
}
}
/**
* 优化的遍历节点,获取 VM 组件
* 获取当前节点下属于本 CCView 管辖的 VMBase 组件(排除嵌套启用 MVVM 的子 CCView 管辖范围)
* @private
*/
private getVMComponents(): Component[] {
private getVMComponents(): VMBase[] {
const comps = this.node.getComponentsInChildren(VMBase);
if (comps.length === 0) return comps;
// 优化:提前返回,避免不必要的计算
if (comps.length === 0) {
return comps;
}
// 优化:只在有嵌套 CCView 时才获取 parents
const parents = this.node.getComponentsInChildren(CCView);
// 优化:使用数组长度判断,避免创建新数组
let hasNested = false;
const len = parents.length;
const myUuid = this.uuid;
// 单次遍历:同时判断是否有嵌套 MVVM CCView并构建过滤集合
const filterSet = new Set<VMBase>();
const len = parents.length;
let hasNested = false;
for (let i = 0; i < len; i++) {
const p = parents[i];
if (p.uuid !== myUuid && p.mvvm) {
hasNested = true;
break;
}
}
// 如果没有嵌套的启用了 MVVM 的 CCView直接返回所有组件
if (!hasNested) {
return comps;
}
// 优化:使用 Set 过滤,但避免多次遍历
const filterSet = new Set<Component>();
for (let i = 0; i < len; i++) {
const p = parents[i];
if (p.uuid !== myUuid && p.mvvm) {
const childComps = p.node.getComponentsInChildren(VMBase);
const childLen = childComps.length;
for (let j = 0; j < childLen; j++) {
@@ -211,15 +178,15 @@ export abstract class CCView<T extends CCEntity> extends GameComponent implement
}
}
// 优化:使用传统 for 循环比 filter 更快
const result: Component[] = [];
if (!hasNested) return comps;
const result: VMBase[] = [];
const compsLen = comps.length;
for (let i = 0; i < compsLen; i++) {
if (!filterSet.has(comps[i])) {
result.push(comps[i]);
}
}
return result;
}
//#endregion
@@ -261,7 +228,6 @@ export abstract class CCView<T extends CCEntity> extends GameComponent implement
this.tag = undefined;
}
// @ts-ignore - 优化:显式清空引用,帮助 GC
this.data = undefined;
}

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@@ -25,8 +25,9 @@ export namespace prefab {
export function register(path: string, bundleName?: string): (ctor: GameComponentCtor) => void {
return function (ctor: GameComponentCtor): void {
const bundle = bundleName || resLoader.defaultBundleName;
(ctor as any).GAME_PREFAB_PATH = path;
(ctor as any).GAME_PREFAB_BUNDLE = bundle;
const c = ctor as any;
c.GAME_PREFAB_PATH = path;
c.GAME_PREFAB_BUNDLE = bundle;
};
}
}