418 lines
13 KiB
TypeScript
418 lines
13 KiB
TypeScript
module es {
|
||
export class EntityComparer implements IComparer<Entity> {
|
||
public compare(self: Entity, other: Entity): number {
|
||
let compare = self.updateOrder - other.updateOrder;
|
||
if (compare == 0)
|
||
compare = self.id - other.id;
|
||
return compare;
|
||
}
|
||
}
|
||
|
||
export class Entity implements IEqualityComparable {
|
||
public static _idGenerator: number = 0;
|
||
public static entityComparer: IComparer<Entity> = new EntityComparer();
|
||
/**
|
||
* 当前实体所属的场景
|
||
*/
|
||
public scene: Scene;
|
||
/**
|
||
* 实体名称。用于在场景范围内搜索实体
|
||
*/
|
||
public name: string;
|
||
/**
|
||
* 此实体的唯一标识
|
||
*/
|
||
public readonly id: number;
|
||
/**
|
||
* 封装实体的位置/旋转/缩放，并允许设置一个高层结构
|
||
*/
|
||
public readonly transform: Transform;
|
||
/**
|
||
* 当前附加到此实体的所有组件的列表
|
||
*/
|
||
public readonly components: ComponentList;
|
||
/**
|
||
* 指定应该调用这个entity update方法的频率。1表示每一帧，2表示每一帧，以此类推
|
||
*/
|
||
public updateInterval: number = 1;
|
||
/**
|
||
* 返回一个BitSet实例，包含实体拥有的组件的位
|
||
*/
|
||
public componentBits: BitSet;
|
||
|
||
constructor(name: string) {
|
||
this.components = new ComponentList(this);
|
||
this.transform = new Transform(this);
|
||
this.name = name;
|
||
this.id = Entity._idGenerator++;
|
||
|
||
if (Core.entitySystemsEnabled)
|
||
this.componentBits = new BitSet();
|
||
}
|
||
|
||
public _isDestroyed: boolean;
|
||
|
||
/**
|
||
* 如果调用了destroy，那么在下一次处理实体之前这将一直为true
|
||
*/
|
||
public get isDestroyed() {
|
||
return this._isDestroyed;
|
||
}
|
||
|
||
private _tag: number = 0;
|
||
|
||
/**
|
||
* 你可以随意使用。稍后可以使用它来查询场景中具有特定标记的所有实体
|
||
*/
|
||
public get tag(): number {
|
||
return this._tag;
|
||
}
|
||
|
||
/**
|
||
* 你可以随意使用。稍后可以使用它来查询场景中具有特定标记的所有实体
|
||
* @param value
|
||
*/
|
||
public set tag(value: number) {
|
||
this.setTag(value);
|
||
}
|
||
|
||
private _enabled: boolean = true;
|
||
|
||
/**
|
||
* 启用/禁用实体。当禁用碰撞器从物理系统和组件中移除时，方法将不会被调用
|
||
*/
|
||
public get enabled() {
|
||
return this._enabled;
|
||
}
|
||
|
||
/**
|
||
* 启用/禁用实体。当禁用碰撞器从物理系统和组件中移除时，方法将不会被调用
|
||
* @param value
|
||
*/
|
||
public set enabled(value: boolean) {
|
||
this.setEnabled(value);
|
||
}
|
||
|
||
private _updateOrder: number = 0;
|
||
|
||
/**
|
||
* 更新此实体的顺序。updateOrder还用于对scene.entities上的标签列表进行排序
|
||
*/
|
||
public get updateOrder() {
|
||
return this._updateOrder;
|
||
}
|
||
|
||
/**
|
||
* 更新此实体的顺序。updateOrder还用于对scene.entities上的标签列表进行排序
|
||
* @param value
|
||
*/
|
||
public set updateOrder(value: number) {
|
||
this.setUpdateOrder(value);
|
||
}
|
||
|
||
public get parent(): Transform {
|
||
return this.transform.parent;
|
||
}
|
||
|
||
public set parent(value: Transform) {
|
||
this.transform.setParent(value);
|
||
}
|
||
|
||
public get childCount() {
|
||
return this.transform.childCount;
|
||
}
|
||
|
||
public get position(): Vector2 {
|
||
return this.transform.position;
|
||
}
|
||
|
||
public set position(value: Vector2) {
|
||
this.transform.setPosition(value.x, value.y);
|
||
}
|
||
|
||
public get localPosition(): Vector2 {
|
||
return this.transform.localPosition;
|
||
}
|
||
|
||
public set localPosition(value: Vector2) {
|
||
this.transform.setLocalPosition(value);
|
||
}
|
||
|
||
public get rotation(): number {
|
||
return this.transform.rotation;
|
||
}
|
||
|
||
public set rotation(value: number) {
|
||
this.transform.setRotation(value);
|
||
}
|
||
|
||
public get rotationDegrees(): number {
|
||
return this.transform.rotationDegrees;
|
||
}
|
||
|
||
public set rotationDegrees(value: number) {
|
||
this.transform.setRotationDegrees(value);
|
||
}
|
||
|
||
public get localRotation(): number {
|
||
return this.transform.localRotation;
|
||
}
|
||
|
||
public set localRotation(value: number) {
|
||
this.transform.setLocalRotation(value);
|
||
}
|
||
|
||
public get localRotationDegrees(): number {
|
||
return this.transform.localRotationDegrees;
|
||
}
|
||
|
||
public set localRotationDegrees(value: number) {
|
||
this.transform.setLocalRotationDegrees(value);
|
||
}
|
||
|
||
public get scale(): Vector2 {
|
||
return this.transform.scale;
|
||
}
|
||
|
||
public set scale(value: Vector2) {
|
||
this.transform.setScale(value);
|
||
}
|
||
|
||
public get localScale(): Vector2 {
|
||
return this.transform.localScale;
|
||
}
|
||
|
||
public set localScale(value: Vector2) {
|
||
this.transform.setLocalScale(value);
|
||
}
|
||
|
||
public get worldInverseTransform(): Matrix2D {
|
||
return this.transform.worldInverseTransform;
|
||
}
|
||
|
||
public get localToWorldTransform(): Matrix2D {
|
||
return this.transform.localToWorldTransform;
|
||
}
|
||
|
||
public get worldToLocalTransform(): Matrix2D {
|
||
return this.transform.worldToLocalTransform;
|
||
}
|
||
|
||
public onTransformChanged(comp: transform.Component) {
|
||
// 通知我们的子项改变了位置
|
||
this.components.onEntityTransformChanged(comp);
|
||
}
|
||
|
||
/**
|
||
* 设置实体的标记
|
||
* @param tag
|
||
*/
|
||
public setTag(tag: number): Entity {
|
||
if (this._tag != tag) {
|
||
// 我们只有在已经有场景的情况下才会调用entityTagList。如果我们还没有场景，我们会被添加到entityTagList
|
||
if (this.scene)
|
||
this.scene.entities.removeFromTagList(this);
|
||
this._tag = tag;
|
||
if (this.scene)
|
||
this.scene.entities.addToTagList(this);
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
/**
|
||
* 设置实体的启用状态。当禁用碰撞器从物理系统和组件中移除时，方法将不会被调用
|
||
* @param isEnabled
|
||
*/
|
||
public setEnabled(isEnabled: boolean) {
|
||
if (this._enabled != isEnabled) {
|
||
this._enabled = isEnabled;
|
||
|
||
if (this._enabled)
|
||
this.components.onEntityEnabled();
|
||
else
|
||
this.components.onEntityDisabled();
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
/**
|
||
* 设置此实体的更新顺序。updateOrder还用于对scene.entities上的标签列表进行排序
|
||
* @param updateOrder
|
||
*/
|
||
public setUpdateOrder(updateOrder: number) {
|
||
if (this._updateOrder != updateOrder) {
|
||
this._updateOrder = updateOrder;
|
||
if (this.scene) {
|
||
this.scene.entities.markEntityListUnsorted();
|
||
this.scene.entities.markTagUnsorted(this.tag);
|
||
}
|
||
|
||
return this;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 从场景中删除实体并销毁所有子元素
|
||
*/
|
||
public destroy() {
|
||
this._isDestroyed = true;
|
||
this.scene.entities.remove(this);
|
||
this.transform.parent = null;
|
||
|
||
// 销毁所有子项
|
||
for (let i = this.transform.childCount - 1; i >= 0; i--) {
|
||
let child = this.transform.getChild(i);
|
||
child.entity.destroy();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 将实体从场景中分离。下面的生命周期方法将被调用在组件上:OnRemovedFromEntity
|
||
*/
|
||
public detachFromScene() {
|
||
this.scene.entities.remove(this);
|
||
this.components.deregisterAllComponents();
|
||
|
||
for (let i = 0; i < this.transform.childCount; i++)
|
||
this.transform.getChild(i).entity.detachFromScene();
|
||
}
|
||
|
||
/**
|
||
* 将一个先前分离的实体附加到一个新的场景
|
||
* @param newScene
|
||
*/
|
||
public attachToScene(newScene: Scene) {
|
||
this.scene = newScene;
|
||
newScene.entities.add(this);
|
||
this.components.registerAllComponents();
|
||
|
||
for (let i = 0; i < this.transform.childCount; i++) {
|
||
this.transform.getChild(i).entity.attachToScene(newScene);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 在提交了所有挂起的实体更改后，将此实体添加到场景时调用
|
||
*/
|
||
public onAddedToScene() {
|
||
}
|
||
|
||
/**
|
||
* 当此实体从场景中删除时调用
|
||
*/
|
||
public onRemovedFromScene() {
|
||
// 如果已经被销毁了，移走我们的组件。如果我们只是分离，我们需要保持我们的组件在实体上。
|
||
if (this._isDestroyed)
|
||
this.components.removeAllComponents();
|
||
}
|
||
|
||
/**
|
||
* 每帧进行调用进行更新组件
|
||
*/
|
||
public update() {
|
||
this.components.update();
|
||
}
|
||
|
||
/**
|
||
* 将组件添加到组件列表中。返回组件。
|
||
* @param component
|
||
*/
|
||
public addComponent<T extends Component>(component: T): T {
|
||
component.entity = this;
|
||
this.components.add(component);
|
||
component.initialize();
|
||
return component;
|
||
}
|
||
|
||
/**
|
||
* 获取类型T的第一个组件并返回它。如果没有找到组件，则返回null。
|
||
* @param type
|
||
*/
|
||
public getComponent<T extends Component>(type): T {
|
||
return this.components.getComponent(type, false) as T;
|
||
}
|
||
|
||
/**
|
||
* 检查实体是否具有该组件
|
||
* @param type
|
||
*/
|
||
public hasComponent<T extends Component>(type) {
|
||
return this.components.getComponent<T>(type, false) != null;
|
||
}
|
||
|
||
/**
|
||
* 获取类型T的第一个组件并返回它。如果没有找到组件，将创建组件。
|
||
* @param type
|
||
*/
|
||
public getOrCreateComponent<T extends Component>(type) {
|
||
let comp = this.components.getComponent<T>(type, true);
|
||
if (!comp) {
|
||
comp = this.addComponent<T>(new type());
|
||
}
|
||
|
||
return comp;
|
||
}
|
||
|
||
/**
|
||
* 获取typeName类型的所有组件，但不使用列表分配
|
||
* @param typeName
|
||
* @param componentList
|
||
*/
|
||
public getComponents(typeName: any, componentList?) {
|
||
return this.components.getComponents(typeName, componentList);
|
||
}
|
||
|
||
/**
|
||
* 从组件列表中删除组件
|
||
* @param component
|
||
*/
|
||
public removeComponent(component: Component) {
|
||
this.components.remove(component);
|
||
}
|
||
|
||
/**
|
||
* 从组件列表中删除类型为T的第一个组件
|
||
* @param type
|
||
*/
|
||
public removeComponentForType<T extends Component>(type) {
|
||
let comp = this.getComponent<T>(type);
|
||
if (comp) {
|
||
this.removeComponent(comp);
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
/**
|
||
* 从实体中删除所有组件
|
||
*/
|
||
public removeAllComponents() {
|
||
for (let i = 0; i < this.components.count; i++) {
|
||
this.removeComponent(this.components.buffer[i]);
|
||
}
|
||
}
|
||
|
||
public compareTo(other: Entity): number {
|
||
let compare = this._updateOrder - other._updateOrder;
|
||
if (compare == 0)
|
||
compare = this.id - other.id;
|
||
return compare;
|
||
}
|
||
|
||
public equals(other: Entity): boolean {
|
||
return this.compareTo(other) == 0;
|
||
}
|
||
|
||
public getHashCode(): number {
|
||
return this.id;
|
||
}
|
||
|
||
public toString(): string {
|
||
return `[Entity: name: ${this.name}, tag: ${this.tag}, enabled: ${this.enabled}, depth: ${this.updateOrder}]`;
|
||
}
|
||
}
|
||
}
|