import { b2ContactFilter, b2Fixture, b2RayCastInput, b2RayCastOutput, b2TimeStep, b2Vec2 } from "@box2d/core";
import type { b2ParticleSystem } from "./b2_particle_system";
export declare abstract class b2FixtureParticleQueryCallback {
    protected m_system: b2ParticleSystem;
    constructor(system: b2ParticleSystem);
    ReportFixture(fixture: b2Fixture): boolean;
    abstract ReportFixtureAndParticle(_fixture: b2Fixture, _childIndex: number, _index: number): void;
}
export declare class b2ParticleSystem_UpdateBodyContactsCallback extends b2FixtureParticleQueryCallback {
    m_contactFilter: b2ContactFilter | null;
    ShouldCollideFixtureParticle(fixture: b2Fixture, particleIndex: number): boolean;
    ReportFixtureAndParticle(fixture: b2Fixture, childIndex: number, a: number): void;
    static readonly ReportFixtureAndParticle_s_n: b2Vec2;
    static readonly ReportFixtureAndParticle_s_rp: b2Vec2;
}
export declare class b2ParticleSystem_SolveCollisionCallback extends b2FixtureParticleQueryCallback {
    m_step: b2TimeStep | null;
    ReportFixtureAndParticle(fixture: b2Fixture, childIndex: number, a: number): void;
    static readonly ReportFixtureAndParticle_s_p1: b2Vec2;
    static readonly ReportFixtureAndParticle_s_output: b2RayCastOutput;
    static readonly ReportFixtureAndParticle_s_input: b2RayCastInput;
    static readonly ReportFixtureAndParticle_s_p: b2Vec2;
    static readonly ReportFixtureAndParticle_s_v: b2Vec2;
    static readonly ReportFixtureAndParticle_s_f: b2Vec2;
}
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