/**
 * RagdollSystem.ts
 *
 * Ragdoll physics system for articulated character bodies.
 * Creates rigid body chains with cone/hinge constraints for humanoid and quadruped skeletons.
 *
 * @module physics
 */
import { IVector3, IRigidBodyConfig, Constraint } from './PhysicsTypes';
export interface BoneDefinition {
    id: string;
    parentBone?: string;
    length: number;
    radius: number;
    mass: number;
    localOffset: IVector3;
    jointType: 'cone' | 'hinge';
    jointLimits?: {
        swingSpan1?: number;
        swingSpan2?: number;
        twistSpan?: number;
        low?: number;
        high?: number;
    };
}
export interface RagdollDefinition {
    id: string;
    bones: BoneDefinition[];
}
export interface RagdollInstance {
    id: string;
    definition: RagdollDefinition;
    bodies: IRigidBodyConfig[];
    constraints: Constraint[];
    rootPosition: IVector3;
}
export declare const HUMANOID_PRESET: BoneDefinition[];
export declare const QUADRUPED_PRESET: BoneDefinition[];
export declare class RagdollSystem {
    private ragdolls;
    /**
     * Create a ragdoll from a definition at a given world position.
     */
    createRagdoll(definition: RagdollDefinition, rootPosition: IVector3): RagdollInstance;
    /**
     * Create humanoid ragdoll from preset.
     */
    createHumanoid(id: string, rootPosition: IVector3): RagdollInstance;
    /**
     * Create quadruped ragdoll from preset.
     */
    createQuadruped(id: string, rootPosition: IVector3): RagdollInstance;
    /**
     * Get a ragdoll instance by ID.
     */
    getRagdoll(id: string): RagdollInstance | undefined;
    /**
     * Remove a ragdoll.
     */
    removeRagdoll(id: string): boolean;
    /**
     * Get total mass of a ragdoll.
     */
    getTotalMass(id: string): number;
}
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