import { Camera } from "@babylonjs/core/Cameras/camera";
import { Matrix, Vector3 } from "@babylonjs/core/Maths/math.vector";
import { Observable } from "@babylonjs/core/Misc/observable";
import type { Scene } from "@babylonjs/core/scene";
import type { Nullable } from "@babylonjs/core/types";
import type { IMmdBindableCameraAnimation } from "./Animation/IMmdBindableAnimation";
import type { IMmdRuntimeCameraAnimation } from "./Animation/IMmdRuntimeAnimation";
import type { MmdCompositeRuntimeCameraAnimation } from "./Animation/mmdCompositeRuntimeCameraAnimation";
import type { MmdRuntimeCameraAnimation } from "./Animation/mmdRuntimeCameraAnimation";
import type { MmdRuntimeCameraAnimationGroup } from "./Animation/mmdRuntimeCameraAnimationGroup";
type RuntimeCameraAnimation = MmdRuntimeCameraAnimation | MmdRuntimeCameraAnimationGroup | MmdCompositeRuntimeCameraAnimation | IMmdRuntimeCameraAnimation;
/**
 * MMD camera
 *
 * The MMD camera is a type of Arc Rotate Camera that determines the transform of the camera by the center position, rotation(yaw pitch roll), and distance parameters
 */
export declare class MmdCamera extends Camera {
    /**
     * Gets or sets a boolean indicating that the scaling of the parent hierarchy will not be taken in account by the camera
     */
    ignoreParentScaling: boolean;
    /**
     * Define the current rotation of the camera
     */
    rotation: Vector3;
    /**
     * Define the current distance of the camera from its target (default: -45)
     */
    distance: number;
    private readonly _viewMatrix;
    private readonly _tmpUpVector;
    private readonly _tmpTargetVector;
    /**
     * Observable triggered when the current animation is changed
     */
    readonly onCurrentAnimationChangedObservable: Observable<Nullable<RuntimeCameraAnimation>>;
    private readonly _animations;
    private readonly _animationIndexMap;
    private _currentAnimation;
    /**
     * Creates a new MMD camera
     * @param name Defines the name of the camera in the scene
     * @param position Defines the position of the camera
     * @param scene Defines the scene the camera belongs too
     * @param setActiveOnSceneIfNoneActive Defines if the camera should be set as active after creation if no other camera have been defined in the scene
     */
    constructor(name: string, position?: Vector3, scene?: Scene, setActiveOnSceneIfNoneActive?: boolean);
    /**
     * Add an animation to the camera
     * @param animation  MMD animation or MMD camera animation group to add
     */
    addAnimation(animation: IMmdBindableCameraAnimation): void;
    /**
     * Remove an animation from the camera
     *
     * If index is out of range, this method does nothing
     * @param index The index of the animation to remove
     */
    removeAnimation(index: number): void;
    /**
     * Set the current animation of the camera
     *
     * If name is null, the current animation is set to null
     * @param name The name of the animation to set
     * @throws {Error} if the animation is not found
     */
    setAnimation(name: Nullable<string>): void;
    /**
     * Get the animations of the camera
     */
    get runtimeAnimations(): readonly RuntimeCameraAnimation[];
    /**
     * Get the current animation of the camera
     */
    get currentAnimation(): Nullable<RuntimeCameraAnimation>;
    /**
     * Animate the camera
     * @param frameTime The 30fps frame time
     */
    animate(frameTime: number): void;
    private _storedPosition;
    private _storedRotation;
    private _storedDistance;
    /**
     * Store current camera state of the camera (fov, position, rotation, etc..)
     * @returns the camera
     */
    storeState(): Camera;
    /**
     * Restored camera state. You must call storeState() first
     * @returns whether it was successful or not
     * @internal
     */
    _restoreStateValues(): boolean;
    /** @internal */
    _initCache(): void;
    /**
     * @internal
     */
    _updateCache(ignoreParentClass?: boolean): void;
    /** @internal */
    _isSynchronizedViewMatrix(): boolean;
    private static readonly _RotationMatrix;
    private static readonly _CameraEyePosition;
    private static readonly _UpVector;
    private static readonly _TargetVector;
    /** @internal */
    _getViewMatrix(): Matrix;
    /**
     * Gets the current object class name.
     * @returns the class name
     */
    getClassName(): string;
}
export {};