import { CellComplex, VecN } from '@holotope/core';
import { XpbdParticleN, XpbdWorldN } from './xpbd-world.js';
export interface XpbdParticleBindingVertexContextN {
    readonly sourceVertexIndex: number;
    /** Copied source position; callback mutation cannot edit the complex. */
    readonly sourcePosition: VecN;
}
export type XpbdParticleBindingVertexScalarN = number | ((vertex: XpbdParticleBindingVertexContextN) => number);
export type XpbdParticleBindingVertexFixedN = boolean | ((vertex: XpbdParticleBindingVertexContextN) => boolean);
export interface CompileXpbdParticleBindingNOptions {
    readonly id: string;
    readonly source: CellComplex;
    /** Positive inertial mass. Default one. */
    readonly mass?: XpbdParticleBindingVertexScalarN;
    /** Mobility policy kept separate from mass. Default false. */
    readonly fixed?: XpbdParticleBindingVertexFixedN;
    /** Multiplier on world gravity. Default one. */
    readonly gravityScale?: XpbdParticleBindingVertexScalarN;
    readonly velocity?: (vertex: XpbdParticleBindingVertexContextN) => VecN | ArrayLike<number>;
}
export interface XpbdParticleBindingVertexN extends XpbdParticleBindingVertexContextN {
    readonly mass: number;
    readonly fixed: boolean;
    readonly particle: XpbdParticleN;
}
/** Topology-neutral one-particle-per-source-vertex state binding. */
export declare class XpbdParticleBindingN {
    readonly id: string;
    readonly dimension: number;
    readonly source: CellComplex;
    readonly vertices: readonly XpbdParticleBindingVertexN[];
    readonly particles: readonly XpbdParticleN[];
    readonly vertexMasses: Float64Array;
    private attachedWorld;
    private constructor();
    static compile(options: CompileXpbdParticleBindingNOptions): XpbdParticleBindingN;
    particleForSourceVertex(sourceVertexIndex: number): XpbdParticleN;
    /** Registers only the bound particles in one RN point world. */
    addToWorld(world: XpbdWorldN): XpbdWorldN;
    /** Validates all live positions, then copies them into the source buffer. */
    writeSourcePositions(): CellComplex;
}
export declare function compileXpbdParticleBindingN(options: CompileXpbdParticleBindingNOptions): XpbdParticleBindingN;
//# sourceMappingURL=xpbd-particle-binding.d.ts.map