import { AgentSet, CellGrid } from '../structures';
import Vector2 from '../numbers/Vector2';
import Agent, { type AgentConstructor } from './Agent';
import Cell from './Cell';
export interface ParticleConstructor extends AgentConstructor {
    initialVelocity: [number, number];
    mass?: number;
}
export default abstract class Particle extends Agent {
    acceleration: Vector2;
    velocity: Vector2;
    mass: number;
    constructor(opts: ParticleConstructor);
    get kineticEnergy(): number;
    get momentum(): Vector2;
    /**
     * Applies an acceleration to the particle proportionate to the net gravitational attraction of all other particles in the given set.
     */
    resolveGravitation<T extends Particle>(world: CellGrid<Cell>, particles: AgentSet<T>): void;
    resolveCollisions<U extends Cell, T extends Particle>(world: CellGrid<U>, particles: AgentSet<T>, options?: {
        particle?: boolean;
    }): void;
    private resolveParticleCollision;
    private resolveBoundaryCollision;
    private resolveGravitationPair;
}