/**
 * A shader effect that sweeps a bright highlight band across the sprite —
 * the classic "shine" pass commonly used for coins, gems, polished metal,
 * and hover-highlighted UI elements. Similar to pixi-filters' ShineFilter.
 *
 * Set `bands` > 1 to tile the sweep into N parallel glints (useful for the
 * "etched grooves" look of a coin's rim). An optional subtle brightness
 * pulse can be layered on top via `pulseDepth` — set to 0 to disable.
 *
 * The `time` uniform must be updated each frame for the animation.
 * @category Effects
 * @see {@link Renderable.shader} for usage
 * @example
 * // single diagonal sweep — classic "button shine"
 * const shine = new ShineEffect(renderer, {
 *     color: [1.0, 0.95, 0.7],
 *     speed: 0.5,
 *     width: 0.18,
 *     angle: 0.5,
 * });
 *
 * // gold coin with ~14 parallel glints and a subtle brightness pulse
 * const coinShine = new ShineEffect(renderer, {
 *     color: [1.0, 0.95, 0.7],
 *     bands: 14.5,
 *     width: 0.15,
 *     intensity: 0.4,
 *     speed: 0.8,
 *     pulseDepth: 0.08,
 * });
 *
 * mySprite.addPostEffect(coinShine);
 *
 * // update each frame
 * coinShine.setTime(timer.getTime() / 1000);
 */
export default class ShineEffect extends ShaderEffect {
    /**
     * @param {import("../webgl_renderer.js").default} renderer - the current renderer instance
     * @param {object} [options] - effect options
     * @param {number[]} [options.color=[1.0, 1.0, 1.0]] - shine color as [r, g, b] (0.0–1.0)
     * @param {number} [options.speed=0.5] - sweeps per second
     * @param {number} [options.width=0.15] - glint half-width as a fraction of one tile (0.0–1.0)
     * @param {number} [options.intensity=0.5] - maximum highlight strength
     * @param {number} [options.angle=0.5] - sweep direction in radians (0 = horizontal L→R, π/2 = vertical T→B)
     * @param {number} [options.bands=1.0] - number of parallel glints (1 = single shine; ~14.5 mimics a coin's etched-rim look)
     * @param {number} [options.pulseDepth=0.0] - subtle base-brightness pulse amplitude (0 disables the pulse)
     * @param {number} [options.pulseSpeed=3.0] - pulse oscillation rate (radians/second)
     */
    constructor(renderer: import("../webgl_renderer.js").default, options?: {
        color?: number[] | undefined;
        speed?: number | undefined;
        width?: number | undefined;
        intensity?: number | undefined;
        angle?: number | undefined;
        bands?: number | undefined;
        pulseDepth?: number | undefined;
        pulseSpeed?: number | undefined;
    });
    /**
     * set the current time (call each frame for animation)
     * @param {number} time - time in seconds
     */
    setTime(time: number): void;
    /**
     * set the shine color
     * @param {number[]} color - shine color as [r, g, b] (0.0–1.0)
     */
    setColor(color: number[]): void;
    /**
     * set the sweep speed
     * @param {number} value - sweeps per second
     */
    setSpeed(value: number): void;
    /**
     * set the highlight intensity
     * @param {number} value - maximum highlight strength
     */
    setIntensity(value: number): void;
    /**
     * set the number of parallel glints
     * @param {number} value - 1 for a single shine, >1 for tiled stripes
     */
    setBands(value: number): void;
}
import ShaderEffect from "../shadereffect.js";
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