@rpgjs/physic/dist/movement/strategies/Knockback.d.ts

A deterministic 2D top-down physics library for RPG, sandbox and MMO games

import { MovementBody, MovementStrategy } from '../MovementStrategy';
/**
 * Simulates an impulse that pushes an entity away and gradually decays.
 *
 * @example
 * ```typescript
 * movementManager.add(enemy, new Knockback({ x: -1, y: 0 }, 12, 0.25, 0.4));
 * ```
 */
export declare class Knockback implements MovementStrategy {
    private readonly duration;
    private readonly decayFactor;
    private readonly direction;
    private elapsed;
    private currentSpeed;
    /**
     * Creates a knockback movement.
     *
     * @param direction - Direction of the impulse (will be normalized)
     * @param initialSpeed - Initial speed in units per second
     * @param duration - Duration in seconds
     * @param decayFactor - Fraction of speed preserved per second (0-1)
     */
    constructor(direction: {
        x: number;
        y: number;
    }, initialSpeed: number, duration: number, decayFactor?: number);
    update(body: MovementBody, dt: number): void;
    isFinished(): boolean;
}
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