71 lines
2.2 KiB
TypeScript
71 lines
2.2 KiB
TypeScript
import { EntitySystem, Entity, Matcher, Time } from '@esengine/ecs-framework';
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import { Transform, Velocity } from '../components';
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/**
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* 移动系统
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* 处理具有Transform和Velocity组件的实体移动
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*/
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export class MovementSystem extends EntitySystem {
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constructor() {
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// 使用Matcher设置系统处理的组件类型
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super(Matcher.empty().all(Transform, Velocity));
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}
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/**
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* 处理所有实体
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*/
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protected process(entities: Entity[]): void {
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const deltaTime = Time.deltaTime;
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for (const entity of entities) {
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this.processEntity(entity, deltaTime);
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}
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}
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/**
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* 处理单个实体
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*/
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private processEntity(entity: Entity, deltaTime: number): void {
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const transform = entity.getComponent(Transform);
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const velocity = entity.getComponent(Velocity);
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if (!transform || !velocity) return;
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// 应用摩擦力
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velocity.applyFriction();
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// 根据速度更新位置
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const deltaX = velocity.velocity.x * deltaTime;
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const deltaY = velocity.velocity.y * deltaTime;
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const deltaZ = velocity.velocity.z * deltaTime;
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transform.move(deltaX, deltaY, deltaZ);
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// 简单的边界检查 (假设游戏世界是 -500 到 500)
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const bounds = 500;
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if (transform.position.x > bounds) {
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transform.position.x = bounds;
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velocity.velocity.x = -Math.abs(velocity.velocity.x) * 0.5; // 反弹并减速
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} else if (transform.position.x < -bounds) {
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transform.position.x = -bounds;
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velocity.velocity.x = Math.abs(velocity.velocity.x) * 0.5;
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}
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if (transform.position.y > bounds) {
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transform.position.y = bounds;
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velocity.velocity.y = -Math.abs(velocity.velocity.y) * 0.5;
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} else if (transform.position.y < -bounds) {
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transform.position.y = -bounds;
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velocity.velocity.y = Math.abs(velocity.velocity.y) * 0.5;
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}
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}
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/**
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* 系统初始化时调用
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*/
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public initialize(): void {
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super.initialize();
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console.log('🏃 移动系统已启动');
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}
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}
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