mirror of
https://github.com/google/blockly.git
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71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
/**
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* @license
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* Visual Blocks Editor
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*
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* Copyright 2019 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Utility methods for math.
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* These methods are not specific to Blockly, and could be factored out into
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* a JavaScript framework such as Closure.
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* @author fraser@google.com (Neil Fraser)
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*/
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'use strict';
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/**
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* @name Blockly.utils.math
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* @namespace
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*/
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goog.provide('Blockly.utils.math');
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/**
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* Converts degrees to radians.
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* Copied from Closure's goog.math.toRadians.
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* @param {number} angleDegrees Angle in degrees.
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* @return {number} Angle in radians.
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*/
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Blockly.utils.math.toRadians = function(angleDegrees) {
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return angleDegrees * Math.PI / 180;
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};
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/**
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* Converts radians to degrees.
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* Copied from Closure's goog.math.toDegrees.
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* @param {number} angleRadians Angle in radians.
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* @return {number} Angle in degrees.
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*/
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Blockly.utils.math.toDegrees = function(angleRadians) {
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return angleRadians * 180 / Math.PI;
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};
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/**
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* Clamp the provided number between the lower bound and the upper bound.
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* @param {number} lowerBound The desired lower bound.
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* @param {number} number The number to clamp.
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* @param {number} upperBound The desired upper bound.
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* @return {number} The clamped number.
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*/
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Blockly.utils.math.clamp = function(lowerBound, number, upperBound) {
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if (upperBound < lowerBound) {
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var temp = upperBound;
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upperBound = lowerBound;
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lowerBound = temp;
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}
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return Math.max(lowerBound, Math.min(number, upperBound));
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};
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