@woosh/meep-engine/src/engine/graphics/particles/node-based/nodes/attribute/WriteVector3Attribute.js

Pure JavaScript game engine. Fully featured and production ready.

import { ShaderNode } from "../ShaderNode.js";
import { ParticleDataTypes } from "../ParticleDataTypes.js";
import { PortDirection } from "../../../../../../core/model/node-graph/node/PortDirection.js";
import { NodeParameterDataType } from "../../../../../../core/model/node-graph/node/parameter/NodeParameterDataType.js";

export class WriteVector3Attribute extends ShaderNode {
    constructor() {
        super();

        this.id = 30008;
        this.name = "Write V3 Attribute";

        this.createPort(ParticleDataTypes.Vector3, 'value', PortDirection.In);

        this.createParameter('name', NodeParameterDataType.String, '');
    }

    generate_code(instance, output, context, port_variables) {
        const attribute_name = instance.getParameterValue(0);

        const source = port_variables[0];

        output.add(`out_${attribute_name} = ${source};`);
    }
}