import { AnimationNodeBase } from '@awayjs/renderer';

import { SkeletonBinaryLERPState } from '../states/SkeletonBinaryLERPState';

import { AnimatorBase } from '../AnimatorBase';

/**
 * A skeleton animation node that uses two animation node inputs to blend a lineraly interpolated output of a skeleton pose.
 */
export class SkeletonBinaryLERPNode extends AnimationNodeBase {
	/**
	 * Defines input node A to use for the blended output.
	 */
	public inputA: AnimationNodeBase;

	/**
	 * Defines input node B to use for the blended output.
	 */
	public inputB: AnimationNodeBase;

	/**
	 * Creates a new <code>SkeletonBinaryLERPNode</code> object.
	 */
	constructor() {
		super();

		this._pStateClass = SkeletonBinaryLERPState;
	}

	/**
	 * @inheritDoc
	 */
	public getAnimationState(animator: AnimatorBase): SkeletonBinaryLERPState {
		return <SkeletonBinaryLERPState> animator.getAnimationState(this);
	}
}