import type { Vec3 } from '@quake2ts/shared';
import { Entity } from './entity.js';
import { EntitySystem } from './system.js';
export declare function isZeroVector(vector: Vec3): boolean;
export declare function setMovedir(angles: Vec3): Vec3;
export declare function touchTriggers(ent: Entity, system: EntitySystem): void;
export declare function velocityForDamage(damage: number, kick: number, rng: {
    crandom: () => number;
}): Vec3;
export declare function clipVelocity(inVel: Vec3, normal: Vec3, overbounce: number): Vec3;
export declare function G_PickTarget(targetName: string | undefined | null, context: EntitySystem): Entity | null;
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