@woosh/meep-engine/src/engine/logging/ConsoleLoggerBackend.js

Pure JavaScript game engine. Fully featured and production ready.

import { LoggerBackend } from "./LoggerBackend.js";
import { LogLevel } from "./LogLevel.js";

let instance;

/**
 * Directs output into system console
 * @see https://developer.mozilla.org/en-US/docs/Web/API/console
 */
export class ConsoleLoggerBackend extends LoggerBackend {
    log(level, message) {
        switch (level) {
            case LogLevel.Error:
            //fallthrough
            case LogLevel.Severe:
                console.error(message);
                return;
            case LogLevel.Warning:
                console.warn(message);
                return;

            default:
            //fallthrough
            case LogLevel.Info:
                console.log(message);
        }
    }

    /**
     * Singleton instance
     * NOTE: you can still create additional instances if you find that useful
     * @return {ConsoleLoggerBackend}
     */
    static get INSTANCE() {
        if (instance === undefined) {
            instance = new ConsoleLoggerBackend();
        }

        return instance;
    }
}