import { Command } from "../commands/Command";
import { CommandQueue } from "../commands/CommandQueue";
export declare class DOMEnvironment {
    commands: CommandQueue;
    _el: HTMLCanvasElement;
    _gfx: CanvasRenderingContext2D;
    _onclick: (x: number, y: number) => void;
    private _ctx;
    private _renderRequested;
    private _activelyRendering;
    private _lastRenderedAt;
    constructor();
    emit(command: Command): void;
    setOnClick(handler: (x: number, y: number) => void): void;
    render(timestamp: number): void;
    private initGfx(gfx);
    private initTurtle();
    private requestRender();
}