import * as THREE from "three";
import { BodyResolved } from "../modules/body";
import { ECSContext } from "../core/ecs";
export declare class Transform {
    position: THREE.Vector3;
    rotation: THREE.Quaternion;
    scale: THREE.Vector3;
    constructor(position?: THREE.Vector3, rotation?: THREE.Quaternion | THREE.Euler, scale?: THREE.Vector3);
    setRotationFromEuler(euler: THREE.Euler): void;
    get xAxis(): THREE.Vector3;
    get yAxis(): THREE.Vector3;
    get zAxis(): THREE.Vector3;
}
/**
 * Calculate bounding box from body parts recursively in local space
 */
export declare function calculateLocalBodyBounds(parts: BodyResolved["parts"]): THREE.Box3;
/**
 * Calculate bounding box from body parts recursively
 */
export declare function calculateBodyBounds(parts: BodyResolved["parts"], parentTransform?: THREE.Matrix4): THREE.Box3;
export interface Vec3 {
    x: number;
    y: number;
    z: number;
}
/**
 * Yaw in XZ plane (rotation around Y axis).
 * Returns radians.
 */
export declare function yawXZ(from: Vec3, to: Vec3): number;
/**
 * Pitch (tilt up/down around X axis).
 * Returns radians.
 */
export declare function pitchY(from: Vec3, to: Vec3): number;
/**
 * Get world space bounds center for an entity with a Body component
 * @param ctx - ECS context
 * @param eid - Entity ID
 * @returns World space bounds center, or null if entity has no body
 */
export declare function getWorldSpaceBoundsCenter(ctx: ECSContext, eid: number): Vec3 | null;
export declare function setWorldRotationFromEuler(object: THREE.Object3D, x: number, y: number, z: number): void;
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