@awayjs/graphics
Version:
AwayJS graphics classes
63 lines (62 loc) • 3.13 kB
JavaScript
import { __extends } from "tslib";
import { Vector3D } from '@awayjs/core';
import { ParticlePropertiesMode } from '../data/ParticlePropertiesMode';
import { ParticleVelocityState } from '../states/ParticleVelocityState';
import { ParticleNodeBase } from './ParticleNodeBase';
/**
* A particle animation node used to set the starting velocity of a particle.
*/
var ParticleVelocityNode = /** @class */ (function (_super) {
__extends(ParticleVelocityNode, _super);
/**
* Creates a new <code>ParticleVelocityNode</code>
*
* @param mode Defines whether the mode of operation acts on local properties of a particle or global properties of the node.
* @param [optional] velocity Defines the default velocity vector of the node, used when in global mode.
*/
function ParticleVelocityNode(mode, velocity) {
if (velocity === void 0) { velocity = null; }
var _this = _super.call(this, 'ParticleVelocity', mode, 3) || this;
_this._pStateClass = ParticleVelocityState;
_this._iVelocity = velocity || new Vector3D();
return _this;
}
/**
* @inheritDoc
*/
ParticleVelocityNode.prototype.getAGALVertexCode = function (shader, animationSet, registerCache, animationRegisterData) {
var velocityValue = (this._pMode == ParticlePropertiesMode.GLOBAL) ? registerCache.getFreeVertexConstant() : registerCache.getFreeVertexAttribute();
animationRegisterData.setRegisterIndex(this, ParticleVelocityState.VELOCITY_INDEX, velocityValue.index);
var distance = registerCache.getFreeVertexVectorTemp();
var code = '';
code += 'mul ' + distance + ',' + animationRegisterData.vertexTime + ',' + velocityValue + '\n';
code += 'add ' + animationRegisterData.positionTarget + '.xyz,' + distance + ',' + animationRegisterData.positionTarget + '.xyz\n';
if (animationSet.needVelocity)
code += 'add ' + animationRegisterData.velocityTarget + '.xyz,' + velocityValue + '.xyz,' + animationRegisterData.velocityTarget + '.xyz\n';
return code;
};
/**
* @inheritDoc
*/
ParticleVelocityNode.prototype.getAnimationState = function (animator) {
return animator.getAnimationState(this);
};
/**
* @inheritDoc
*/
ParticleVelocityNode.prototype._iGeneratePropertyOfOneParticle = function (param) {
var _tempVelocity = param[ParticleVelocityNode.VELOCITY_VECTOR3D];
if (!_tempVelocity)
throw new Error('there is no ' + ParticleVelocityNode.VELOCITY_VECTOR3D + ' in param!');
this._pOneData[0] = _tempVelocity.x;
this._pOneData[1] = _tempVelocity.y;
this._pOneData[2] = _tempVelocity.z;
};
/**
* Reference for velocity node properties on a single particle (when in local property mode).
* Expects a <code>Vector3D</code> object representing the direction of movement on the particle.
*/
ParticleVelocityNode.VELOCITY_VECTOR3D = 'VelocityVector3D';
return ParticleVelocityNode;
}(ParticleNodeBase));
export { ParticleVelocityNode };