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d8fbe1b05b
* Add annotations to files under core/events * Add annotations to files under core/interfaces * Add annotations to files under core/keyboard_nav * Add annotations to files under core/renderers * Add annotations to files under core/serialization * Add annotations to files under core/theme * Add annotations to files under core/toolbox * Add annotations to files under core/utils * Add annotations to files under core
65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
/**
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* @license
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* Copyright 2019 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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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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* 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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* @namespace Blockly.utils.math
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*/
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goog.module('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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* @alias Blockly.utils.math.toRadians
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*/
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const toRadians = function(angleDegrees) {
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return angleDegrees * Math.PI / 180;
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};
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exports.toRadians = toRadians;
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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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* @alias Blockly.utils.math.toDegrees
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*/
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const toDegrees = function(angleRadians) {
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return angleRadians * 180 / Math.PI;
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};
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exports.toDegrees = toDegrees;
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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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* @alias Blockly.utils.math.clamp
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*/
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const clamp = function(lowerBound, number, upperBound) {
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if (upperBound < lowerBound) {
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const 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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exports.clamp = clamp;
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