playcanvas/build/playcanvas.dbg/src/scene/shader-lib/chunk-builder.js

PlayCanvas WebGL game engine

// helper class for combining shader chunks together
// ensures every chunk ends with a new line otherwise shaders can be ill-formed
class ChunkBuilder {
    append() {
        for(var _len = arguments.length, chunks = new Array(_len), _key = 0; _key < _len; _key++){
            chunks[_key] = arguments[_key];
        }
        chunks.forEach((chunk)=>{
            if (chunk.endsWith('\n')) {
                this.code += chunk;
            } else {
                this.code += "" + chunk + "\n";
            }
        });
    }
    prepend() {
        for(var _len = arguments.length, chunks = new Array(_len), _key = 0; _key < _len; _key++){
            chunks[_key] = arguments[_key];
        }
        chunks.forEach((chunk)=>{
            if (chunk.endsWith('\n')) {
                this.code = chunk + this.code;
            } else {
                this.code = chunk + "\n" + this.code;
            }
        });
    }
    constructor(){
        this.code = '';
    }
}

export { ChunkBuilder };