@erikyuzwa/rogue-punk/dist-es/Engine.js

a JavaScript library to help you build your roguelike adventures

import { Stage } from './Stage';
export class Engine {
    constructor(options) {
        this.stage = new Stage(options);
        this.init();
    }
    init() {
        const engine = this;
        const bindEventToScreen = ((event) => {
            window.addEventListener(event, (e) => {
                if (engine.currentWorld) {
                    engine.currentWorld.handleInput(event, e);
                }
            }, false);
        });
        bindEventToScreen('keydown');
    }
    getStage() {
        return this.stage;
    }
    refresh() {
        this.stage.clear();
        if (this.currentWorld) {
            this.currentWorld.render(this.stage.getDisplay());
        }
    }
    switchWorld(newWorld) {
        if (this.currentWorld) {
            this.currentWorld.end();
        }
        this.currentWorld = newWorld;
        if (this.currentWorld) {
            this.currentWorld.begin();
            this.refresh();
        }
    }
}