import {
    Core, Scene, Entity, Component, EntitySystem,
    Matcher, Time, ECSComponent, ECSSystem
} from '@esengine/ecs-framework';

// Define components (data only)
@ECSComponent('Position')
class Position extends Component {
    x = 0;
    y = 0;
}

@ECSComponent('Velocity')
class Velocity extends Component {
    dx = 0;
    dy = 0;
}

// Define system (logic)
@ECSSystem('Movement')
class MovementSystem extends EntitySystem {
    constructor() {
        super(Matcher.all(Position, Velocity));
    }

    protected process(entities: readonly Entity[]): void {
        for (const entity of entities) {
            const pos = entity.getComponent(Position);
            const vel = entity.getComponent(Velocity);
            pos.x += vel.dx * Time.deltaTime;
            pos.y += vel.dy * Time.deltaTime;
        }
    }
}

// Initialize
Core.create();
const scene = new Scene();
scene.addSystem(new MovementSystem());

const player = scene.createEntity('Player');
player.addComponent(new Position());
player.addComponent(new Velocity());

Core.setScene(scene);

// Integrate with your game loop
function gameLoop(currentTime: number) {
    Core.update(currentTime / 1000);
    requestAnimationFrame(gameLoop);
}
requestAnimationFrame(gameLoop);

import { Component as CCComponent, _decorator } from 'cc';
import { Core, Scene, Matcher, EntitySystem } from '@esengine/ecs-framework';
import { BehaviorTreeExecutionSystem } from '@esengine/behavior-tree';

const { ccclass } = _decorator;

@ccclass('GameManager')
export class GameManager extends CCComponent {
    private ecsScene!: Scene;

    start() {
        Core.create();
        this.ecsScene = new Scene();

        // Add ECS systems
        this.ecsScene.addSystem(new BehaviorTreeExecutionSystem());
        this.ecsScene.addSystem(new MyGameSystem());

        Core.setScene(this.ecsScene);
    }

    update(dt: number) {
        Core.update(dt);
    }
}

import { Core, Scene } from '@esengine/ecs-framework';
import { FSMSystem } from '@esengine/fsm';

const { regClass } = Laya;

@regClass()
export class ECSManager extends Laya.Script {
    private ecsScene = new Scene();

    onAwake(): void {
        Core.create();
        this.ecsScene.addSystem(new FSMSystem());
        Core.setScene(this.ecsScene);
    }

    onUpdate(): void {
        Core.update(Laya.timer.delta / 1000);
    }

    onDestroy(): void {
        Core.destroy();
    }
}