export declare function parseHex(hex: string): {
    r: number;
    g: number;
    b: number;
};
/**
 * Cross-platform PNG encoder that works in both browser and NodeJS environments.
 * Provides pre-encoded placeholder textures for reliable cross-platform use.
 */
export default class PngEncoder {
    /**
     * Create a simple solid-color texture.
     *
     * @param width Texture width
     * @param height Texture height
     * @param hexColor Hex color (e.g., "#FF0000")
     * @returns PNG data as Uint8Array
     */
    static createSolidColorPng(width: number, height: number, hexColor: string): Uint8Array | undefined;
    /**
     * Create a checkerboard pattern texture with two colors.
     *
     * @param width Texture width
     * @param height Texture height
     * @param primaryHex Primary color hex
     * @param secondaryHex Secondary color hex
     * @param cellSize Size of each checkerboard cell
     * @returns PNG data as Uint8Array
     */
    static createCheckerboardPng(width: number, height: number, primaryHex: string, secondaryHex: string, cellSize?: number): Uint8Array | undefined;
    /**
     * Async version of createCheckerboardPng that works in browser environments.
     * Falls back to sync encoding first, then tries browser Canvas API.
     */
    static createCheckerboardPngAsync(width: number, height: number, primaryHex: string, secondaryHex: string, cellSize?: number): Promise<Uint8Array | undefined>;
    /**
     * Get a pre-encoded placeholder texture.
     * These work in all environments without requiring runtime PNG encoding.
     *
     * @param type Type of placeholder: "entity" (64x64), "block" (16x16), or "item" (16x16)
     * @returns PNG data as Uint8Array
     */
    static getPlaceholderTexture(type: "entity" | "block" | "item"): Uint8Array;
}