@babylonjs/core
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Getting started? Play directly with the Babylon.js API using our [playground](https://playground.babylonjs.com/). It also contains a lot of samples to learn how to use it.
76 lines • 2.56 kB
JavaScript
/** This file must only contain pure code and pure imports */
import { NodeParticleBlockConnectionPointTypes } from "../../Enums/nodeParticleBlockConnectionPointTypes.js";
import { NodeParticleBlock } from "../../nodeParticleBlock.js";
import { _ConnectAtTheEnd } from "../../../Queue/executionQueue.js";
import { RegisterClass } from "../../../../Misc/typeStore.js";
/**
* Block used to provide the basic update functionality for particles.
*/
export class BasicPositionUpdateBlock extends NodeParticleBlock {
/**
* Create a new BasicPositionUpdateBlock
* @param name defines the block name
*/
constructor(name) {
super(name);
this.registerInput("particle", NodeParticleBlockConnectionPointTypes.Particle);
this.registerOutput("output", NodeParticleBlockConnectionPointTypes.Particle);
}
/**
* Gets the particle component
*/
get particle() {
return this._inputs[0];
}
/**
* Gets the output component
*/
get output() {
return this._outputs[0];
}
/**
* Gets the current class name
* @returns the class name
*/
getClassName() {
return "BasicPositionUpdateBlock";
}
/**
* Builds the block
* @param state defines the current build state
*/
_build(state) {
const system = this.particle.getConnectedValue(state);
const processPosition = (particle) => {
state.particleContext = particle;
state.systemContext = system;
particle.direction.scaleToRef(particle._properties.directionScale, particle._properties.scaledDirection);
particle.position.addInPlace(particle._properties.scaledDirection);
};
const positionProcessing = {
process: processPosition,
previousItem: null,
nextItem: null,
};
if (system._updateQueueStart) {
_ConnectAtTheEnd(positionProcessing, system._updateQueueStart);
}
else {
system._updateQueueStart = positionProcessing;
}
this.output._storedValue = system;
}
}
let _Registered = false;
/**
* Register side effects for basicPositionUpdateBlock.
* Safe to call multiple times; only the first call has an effect.
*/
export function RegisterBasicPositionUpdateBlock() {
if (_Registered) {
return;
}
_Registered = true;
RegisterClass("BABYLON.BasicPositionUpdateBlock", BasicPositionUpdateBlock);
}
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