import type { Disposable } from "@goldenratio/core-utils";
import type { Karlib } from "./karlib.js";
import type { Texture } from "./texture.js";
import type { DrawTextureOptions } from "./types/types.js";
export interface AnimatedTextureOptions {
    /**
     * Ordered frames for the animation.
     */
    readonly frames: readonly Texture[] | readonly string[];
    /**
     * @default 0
     */
    readonly start_frame_index?: number;
    /**
     * Default per-frame duration (in milliseconds)
     * @default 100
     */
    readonly frame_duration?: number;
    /**
     * Number of times to loop. Use Infinity for infinite loop.
     * @default Infinity
     */
    readonly loop?: number;
    /**
     * If true, play A->B->A (ping-pong).
     * @default false
     */
    readonly ping_pong?: boolean;
    /**
     * Global playback speed multiplier.
     * @default 1
     */
    readonly speed?: number;
    /**
     * Start in playing state.
     * @default true
     */
    readonly autoplay?: boolean;
}
export type DrawAnimatedTextureOptions = Omit<DrawTextureOptions, "texture">;
export declare class AnimatedTexture implements Disposable {
    private readonly kl;
    private readonly frames;
    private readonly frame_duration;
    private readonly ping_pong;
    private speed;
    private playing;
    private idx;
    private dir;
    private acc;
    private loops_remaining;
    private animation_complete_callback?;
    constructor(kl: Karlib, options: AnimatedTextureOptions);
    get_current_frame_index(): number;
    set_speed(value: number): void;
    set_on_animation_complete(fn: () => void): void;
    dispose(): void;
    stop(): void;
    play(): void;
    pause(): void;
    /**
     * Jump to the given frame index, clamped to [0, length-1].
     */
    goto_frame(frame_index: number): void;
    /**
     * Update loop
     * @param delta_time Scalar representing the delta time factor (value between 0 to 1)
     */
    update(delta_time: number): void;
    /**
     * Draw
     */
    draw(options?: DrawAnimatedTextureOptions): void;
    private animation_complete;
    private advance_index_by;
    private advance_index;
}