playcanvas
Version:
Open-source WebGL/WebGPU 3D engine for the web
49 lines (46 loc) • 1.31 kB
JavaScript
import { ScopeId } from './scope-id.js';
/**
* The scope for variables.
*
* @category Graphics
*/ class ScopeSpace {
/**
* Get (or create, if it doesn't already exist) a variable in the scope.
*
* @param {string} name - The variable name.
* @returns {ScopeId} The variable instance.
*/ resolve(name) {
// add new ScopeId if it does not exist yet
if (!this.variables.has(name)) {
this.variables.set(name, new ScopeId(name));
}
// return the ScopeId instance
return this.variables.get(name);
}
/**
* Clears value for any uniform with matching value (used to remove deleted textures).
*
* @param {*} value - The value to clear.
* @ignore
*/ removeValue(value) {
for (const uniform of this.variables.values()){
if (uniform.value === value) {
uniform.value = null;
}
}
}
/**
* Create a new ScopeSpace instance.
*
* @param {string} name - The scope name.
*/ constructor(name){
/**
* The scope name.
*
* @type {string}
*/ this.name = name;
// Create map which maps a uniform name into ScopeId
this.variables = new Map();
}
}
export { ScopeSpace };