@awayjs/graphics/lib/animators/states/ParticleUVState.ts

AwayJS graphics classes

import { Vector3D } from '@awayjs/core';

import { ShaderBase, _Render_RenderableBase, AnimationRegisterData } from '@awayjs/renderer';

import { AnimationElements } from '../data/AnimationElements';
import { ParticleUVNode } from '../nodes/ParticleUVNode';

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

import { ParticleStateBase } from './ParticleStateBase';

/**
 * ...
 */
export class ParticleUVState extends ParticleStateBase {
	/** @private */
	public static UV_INDEX: number = 0;

	private _particleUVNode: ParticleUVNode;

	constructor(animator: ParticleAnimator, particleUVNode: ParticleUVNode) {
		super(animator, particleUVNode);

		this._particleUVNode = particleUVNode;
	}

	public setRenderState(shader: ShaderBase, renderable: _Render_RenderableBase, animationElements: AnimationElements, animationRegisterData: AnimationRegisterData): void {
		if (!shader.usesUVTransform) {
			const index: number = animationRegisterData.getRegisterIndex(this._pAnimationNode, ParticleUVState.UV_INDEX);
			const data: Vector3D = this._particleUVNode._iUvData;
			shader.setVertexConst(index, data.x, data.y);
		}
	}

}