xchess/lib/log.js

Chess Engine

export {GameLog}

class GameLog {

	#context;

	constructor(context){
		this.#context = context;
	}

	get first(){
		const firstState = this.#context.first;
		if(firstState) return firstState.handler;
		return null;
	}

	* list(){
		let stateHandler = this.first;
		while(stateHandler){
			yield stateHandler;
			stateHandler = stateHandler.next;
		}
	}

	[Symbol.iterator](){
		return this.list();
	}

	toArray(){
		return [... this];
	}
}