34 lines
835 B
TypeScript
34 lines
835 B
TypeScript
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import type { Component } from "../components";
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import { ComponentNotFoundError } from "../exceptions";
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export abstract class Entity {
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private static ID = 0;
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public readonly id: number;
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public readonly components: Map<string, Component>;
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constructor() {
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this.id = Entity.ID++;
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this.components = new Map();
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}
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public addComponent(component: Component) {
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this.components.set(component.name, component);
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}
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public getComponent<T extends Component>(name: string): T {
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if (!this.hasComponent(name)) {
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throw new Error("Entity does not have component " + name);
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}
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return this.components.get(name) as T;
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}
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public getComponents(): Component[] {
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return Array.from(this.components.values());
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}
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public hasComponent(name: string): boolean {
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return this.components.has(name);
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}
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}
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