mirror of
https://github.com/google/blockly.git
synced 2026-01-10 18:37:09 +01:00
57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2019 Google LLC
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @fileoverview Utility methods for math.
|
|
* These methods are not specific to Blockly, and could be factored out into
|
|
* a JavaScript framework such as Closure.
|
|
* @author fraser@google.com (Neil Fraser)
|
|
*/
|
|
'use strict';
|
|
|
|
/**
|
|
* @name Blockly.utils.math
|
|
* @namespace
|
|
*/
|
|
goog.provide('Blockly.utils.math');
|
|
|
|
|
|
/**
|
|
* Converts degrees to radians.
|
|
* Copied from Closure's goog.math.toRadians.
|
|
* @param {number} angleDegrees Angle in degrees.
|
|
* @return {number} Angle in radians.
|
|
*/
|
|
Blockly.utils.math.toRadians = function(angleDegrees) {
|
|
return angleDegrees * Math.PI / 180;
|
|
};
|
|
|
|
/**
|
|
* Converts radians to degrees.
|
|
* Copied from Closure's goog.math.toDegrees.
|
|
* @param {number} angleRadians Angle in radians.
|
|
* @return {number} Angle in degrees.
|
|
*/
|
|
Blockly.utils.math.toDegrees = function(angleRadians) {
|
|
return angleRadians * 180 / Math.PI;
|
|
};
|
|
|
|
/**
|
|
* Clamp the provided number between the lower bound and the upper bound.
|
|
* @param {number} lowerBound The desired lower bound.
|
|
* @param {number} number The number to clamp.
|
|
* @param {number} upperBound The desired upper bound.
|
|
* @return {number} The clamped number.
|
|
*/
|
|
Blockly.utils.math.clamp = function(lowerBound, number, upperBound) {
|
|
if (upperBound < lowerBound) {
|
|
var temp = upperBound;
|
|
upperBound = lowerBound;
|
|
lowerBound = temp;
|
|
}
|
|
return Math.max(lowerBound, Math.min(number, upperBound));
|
|
};
|