import type * as spec from '@galacean/effects-specification';
import type { GraphContext, InstantiationContext } from './graph-context';
import type { PoseResult } from './pose-result';
export declare const InvalidIndex = -1;
export declare class GraphNode {
    private initializationCount;
    private lastUpdateID;
    constructor();
    getNodeData<T extends GraphNodeData>(): T;
    isValid(): boolean;
    isInitialized(): boolean;
    initialize(context: GraphContext): void;
    /**
     * Shutdown this node
     */
    shutdown(context: GraphContext): void;
    isNodeActive(updateID: number): boolean;
    isUpdated(context: GraphContext): boolean;
    /**
     * Mark this node as active for the current update
     */
    markNodeActive(context: GraphContext): void;
    /**
     * Internal initialization logic
     */
    protected initializeInternal(context: GraphContext): void;
    /**
     * Internal shutdown logic
     */
    protected shutdownInternal(context: GraphContext): void;
}
export declare abstract class GraphNodeData {
    index: number;
    abstract instantiate(context: InstantiationContext): void;
    load(data: spec.GraphNodeData): void;
    protected createNode<T extends GraphNode>(nodeType: new () => T, context: InstantiationContext): T;
}
export interface PoseNodeDebugInfo {
    duration: number;
    currentTime: number;
    previousTime: number;
}
export declare abstract class PoseNode extends GraphNode {
    protected duration: number;
    protected previousTime: number;
    protected currentTime: number;
    /**
     * Get current clamped percentage over the duration
     */
    getCurrentTime(): number;
    /**
     * Get previous clamped percentage over the duration
     */
    getPreviousTime(): number;
    /**
     * Get node duration
     */
    getDuration(): number;
    getDebugInfo(): PoseNodeDebugInfo;
    abstract evaluate(context: GraphContext, result: PoseResult): PoseResult;
    protected initializeInternal(context: GraphContext): void;
}
export declare abstract class ValueNode extends GraphNode {
    setValue<T>(value: T): void;
    abstract getValue<T>(context: GraphContext): T;
}
export declare abstract class FloatValueNode extends ValueNode {
}
export declare abstract class BoolValueNode extends ValueNode {
}