playcanvas/build/playcanvas.prf/src/platform/graphics/stencil-parameters.js

PlayCanvas WebGL game engine

import { FUNC_ALWAYS, STENCILOP_KEEP } from './constants.js';
import { StringIds } from '../../core/string-ids.js';

const stringIds = new StringIds();
class StencilParameters {
		set func(value) {
				this._func = value;
				this._dirty = true;
		}
		get func() {
				return this._func;
		}
		set ref(value) {
				this._ref = value;
				this._dirty = true;
		}
		get ref() {
				return this._ref;
		}
		set fail(value) {
				this._fail = value;
				this._dirty = true;
		}
		get fail() {
				return this._fail;
		}
		set zfail(value) {
				this._zfail = value;
				this._dirty = true;
		}
		get zfail() {
				return this._zfail;
		}
		set zpass(value) {
				this._zpass = value;
				this._dirty = true;
		}
		get zpass() {
				return this._zpass;
		}
		set readMask(value) {
				this._readMask = value;
				this._dirty = true;
		}
		get readMask() {
				return this._readMask;
		}
		set writeMask(value) {
				this._writeMask = value;
				this._dirty = true;
		}
		get writeMask() {
				return this._writeMask;
		}
		constructor(options = {}){
				this._dirty = true;
				this._func = options.func ?? FUNC_ALWAYS;
				this._ref = options.ref ?? 0;
				this._readMask = options.readMask ?? 0xFF;
				this._writeMask = options.writeMask ?? 0xFF;
				this._fail = options.fail ?? STENCILOP_KEEP;
				this._zfail = options.zfail ?? STENCILOP_KEEP;
				this._zpass = options.zpass ?? STENCILOP_KEEP;
				this._evalKey();
		}
		_evalKey() {
				const { _func, _ref, _fail, _zfail, _zpass, _readMask, _writeMask } = this;
				const key = `${_func},${_ref},${_fail},${_zfail},${_zpass},${_readMask},${_writeMask}`;
				this._key = stringIds.get(key);
				this._dirty = false;
		}
		get key() {
				if (this._dirty) {
						this._evalKey();
				}
				return this._key;
		}
		copy(rhs) {
				this._func = rhs._func;
				this._ref = rhs._ref;
				this._readMask = rhs._readMask;
				this._writeMask = rhs._writeMask;
				this._fail = rhs._fail;
				this._zfail = rhs._zfail;
				this._zpass = rhs._zpass;
				this._dirty = rhs._dirty;
				this._key = rhs._key;
				return this;
		}
		clone() {
				const clone = new this.constructor();
				return clone.copy(this);
		}
		static{
				this.DEFAULT = Object.freeze(new StencilParameters());
		}
}

export { StencilParameters };