import type { OcclusionResolver } from './system.js';
import { type Vec3 } from '@quake2ts/shared';
export type TraceFn = (start: Vec3, end: Vec3, mins: Vec3 | undefined, maxs: Vec3 | undefined) => {
    fraction: number;
    allsolid?: boolean;
    startsolid?: boolean;
    contents?: number;
};
export declare class AudioOcclusion {
    private readonly trace;
    constructor(trace: TraceFn);
    resolve: OcclusionResolver;
}
export declare function createOcclusionResolver(trace: TraceFn): OcclusionResolver;
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