/* MIT License Copyright(c) 2019 Mitchel Thompson www.angryarugula.com Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /* void Usage() { float meters = 7.5f; float yards = meters.ConvertUnits(Unit.Meters, Unit.Yards); Debug.Log(yards.ToString(Unit.Yards)); } */ using System; using System.Collections; using System.Collections.Generic; using UnityEngine; namespace Arugula.Math { public enum Unit { //length Millimeters, Centimeters, Decimeters, Meters, Kilometers, Inches, Feet, Yards, Miles, //angle Degrees, Radians, //temperature Fahrenheit, Celsius, Kevlin, //speed MPH, FeetPerSecond, KPH, MetersPerSecond, Knots } public static class UnitConversion { delegate float Conversion(float input); delegate string UnitPrinter(float input); static Dictionary, Conversion> complexConversions = new Dictionary, Conversion>(); static Dictionary, float> constantConversions = new Dictionary, float>(); static Dictionary printers = new Dictionary(); static UnitConversion() { //lengths Map(Unit.Millimeters, Unit.Millimeters, 1, false); Map(Unit.Millimeters, Unit.Centimeters, 0.1f); Map(Unit.Millimeters, Unit.Decimeters, 0.01f); Map(Unit.Millimeters, Unit.Meters, 0.001f); Map(Unit.Millimeters, Unit.Kilometers, 0.000001f); Map(Unit.Millimeters, Unit.Inches, 0.0393701f); Map(Unit.Millimeters, Unit.Feet, 0.00328084f); Map(Unit.Millimeters, Unit.Yards, 0.00109361f); Map(Unit.Millimeters, Unit.Miles, 6.2137e-7f); Map(Unit.Centimeters, Unit.Centimeters, 1, false); Map(Unit.Centimeters, Unit.Decimeters, 0.1f); Map(Unit.Centimeters, Unit.Meters, 0.01f); Map(Unit.Centimeters, Unit.Kilometers, 0.00001f); Map(Unit.Centimeters, Unit.Inches, 0.393701f); Map(Unit.Centimeters, Unit.Feet, 0.0328084f); Map(Unit.Centimeters, Unit.Yards, 0.0109361f); Map(Unit.Centimeters, Unit.Miles, 6.2137e-6f); Map(Unit.Decimeters, Unit.Decimeters, 1, false); Map(Unit.Decimeters, Unit.Meters, 0.1f); Map(Unit.Decimeters, Unit.Kilometers, 0.0001f); Map(Unit.Decimeters, Unit.Inches, 3.93701f); Map(Unit.Decimeters, Unit.Feet, 0.328084f); Map(Unit.Decimeters, Unit.Yards, 0.109361f); Map(Unit.Decimeters, Unit.Miles, 6.2137e-5f); Map(Unit.Meters, Unit.Meters, 1, false); Map(Unit.Meters, Unit.Kilometers, 0.001f); Map(Unit.Meters, Unit.Inches, 39.3701f); Map(Unit.Meters, Unit.Feet, 3.28084f); Map(Unit.Meters, Unit.Yards, 1.09361f); Map(Unit.Meters, Unit.Miles, 6.2137e-4f); Map(Unit.Kilometers, Unit.Kilometers, 1, false); Map(Unit.Kilometers, Unit.Inches, 393.701f); Map(Unit.Kilometers, Unit.Feet, 32.8084f); Map(Unit.Kilometers, Unit.Yards, 10.9361f); Map(Unit.Kilometers, Unit.Miles, 6.2137e-3f); Map(Unit.Inches, Unit.Inches, 1, false); Map(Unit.Feet, Unit.Inches, 12f); Map(Unit.Inches, Unit.Yards, 0.0277778f); Map(Unit.Inches, Unit.Miles, 1.5783e-5f); Map(Unit.Feet, Unit.Feet, 1, false); Map(Unit.Yards, Unit.Feet, 3f); Map(Unit.Miles, Unit.Feet, 5280f); Map(Unit.Miles, Unit.Miles, 1, false); Map(Unit.Miles, Unit.Yards, 1760f); //angles Map(Unit.Degrees, Unit.Radians, Mathf.Deg2Rad, false); Map(Unit.Radians, Unit.Radians, Mathf.Rad2Deg, false); //temperature Map(Unit.Fahrenheit, Unit.Celsius, (x) => (x - 32) * (5f / 9f)); Map(Unit.Fahrenheit, Unit.Kevlin, (x) => (x - 32) * (5f / 9f) + 273.15f); Map(Unit.Celsius, Unit.Fahrenheit, (x) => (x * (9f / 5f)) + 32); Map(Unit.Celsius, Unit.Kevlin, (x) => x + 273.15f); Map(Unit.Kevlin, Unit.Celsius, (x) => x - 273.15f); //speeds Map(Unit.MetersPerSecond, Unit.MetersPerSecond, 1, false); Map(Unit.MetersPerSecond, Unit.KPH, 3.6f); Map(Unit.MetersPerSecond, Unit.MPH, 2.23694f); Map(Unit.MetersPerSecond, Unit.Knots, 1.94384f); Map(Unit.MetersPerSecond, Unit.FeetPerSecond, 3.28084f); Map(Unit.KPH, Unit.KPH, 1, false); Map(Unit.KPH, Unit.MPH, 0.621371f); Map(Unit.KPH, Unit.Knots, 0.539957f); Map(Unit.KPH, Unit.FeetPerSecond, 0.911344f); Map(Unit.MPH, Unit.MPH, 1, false); Map(Unit.MPH, Unit.Knots, 0.868976f); Map(Unit.MPH, Unit.FeetPerSecond, 1.46667f); Map(Unit.Knots, Unit.Knots, 1, false); Map(Unit.Knots, Unit.FeetPerSecond, 1.68781f); Map(Unit.FeetPerSecond, Unit.FeetPerSecond, 1, false); //length Label(Unit.Millimeters, (x) => $"{x}mm"); Label(Unit.Centimeters, (x) => $"{x}cm"); Label(Unit.Decimeters, (x) => $"{x}dm"); Label(Unit.Meters, (x) => $"{x}m"); Label(Unit.Kilometers, (x) => $"{x}km"); Label(Unit.Inches, (x) => $"{x.ToString("f3")}\""); Label(Unit.Feet, (x) => { if (x < 1) return x.ConvertUnits(Unit.Feet, Unit.Inches).ToString(Unit.Inches); float inches = x.ConvertUnits(Unit.Feet, Unit.Inches); return $"{((int)(inches / 12))}' {inches % 12}\""; }); Label(Unit.Yards, (x) => { if (x < 1) return x.ConvertUnits(Unit.Yards, Unit.Feet).ToString(Unit.Feet); float feet = x.ConvertUnits(Unit.Yards, Unit.Feet); return $"{(int)(feet / 3)}yd{(x >= 2 ? "s" : "")} {(feet % 3).ToString(Unit.Feet)}"; }); //speed Label(Unit.KPH, (x) => $"{x}km/h"); Label(Unit.MetersPerSecond, (x) => $"{x}m/s"); Label(Unit.Miles, (x) => $"{x}mi"); Label(Unit.MPH, (x) => $"{x}MPH"); Label(Unit.FeetPerSecond, (x) => $"{x}fps"); Label(Unit.Knots, (x) => $"{x}kt"); //angles Label(Unit.Degrees, (x) => $"{x}°"); Label(Unit.Radians, (x) => $"{x}rad"); //temperature Label(Unit.Fahrenheit, (x) => $"{x}°F"); Label(Unit.Celsius, (x) => $"{x}°C"); Label(Unit.Celsius, (x) => $"{x}K"); } static void Map(Unit from, Unit to, float constant, bool reciprocal = true) { constantConversions.Add(new Tuple(from, to), constant); if (reciprocal) constantConversions.Add(new Tuple(to, from), 1f / constant); } static void Map(Unit from, Unit to, Conversion conv) { complexConversions.Add(new Tuple(from, to), conv); } static void Label(Unit unit, UnitPrinter printer) { printers.Add(unit, printer); } public static float ConvertUnits(this float value, Unit from, Unit to) { var key = new Tuple(from, to); if (constantConversions.ContainsKey(key)) { return constantConversions[key] * value; } if (complexConversions.ContainsKey(key)) { return complexConversions[key](value); } throw new Exception($"Cannot convert from {from} to {to}!"); } public static string ToString(this float val, Unit unit) { if (printers.ContainsKey(unit)) return printers[unit](val); throw new Exception($"Cannot beautify {unit} yet!"); } } }