brandonsantana / calorie-counter-csharp

Calorie Counter as a Console Application in C#

Calorie Counter

Calorie Counter as a Visual Studio Console Application in C#

Author: Brandon Xavier Santana

This program provides a recommended daily calorie intake based on the user's goal weight and allocates the calories into the three primary macronutrients: Protein, Carbohydrates and Fats. The user decides what percentages of each macro is relevant to their overall diet to meet their fitness goals.

Tip: There are 4 calories in 1 gram of Protein and in 1 gram of Carbohydrates. There are 9 calories in 1 gram of Fat.

The code shown below can be found in the directory CalorieCounter/Program.cs

using System;
    
    namespace CalorieCounter 
    {
        class Calculation
        {
            static void Main(string[] args)
            {
                genderCheck();
                weightCheck();
                calorieCalc();
                getUserMacros();
                Console.Write("\nPress any key to close...");
                Console.ReadLine();
    
            public static int weight, multiplier, numCalories;
    
            //Gets gender of the user
            private static void genderCheck(bool onlyLetters = false)
            {
                Console.Write("Are you a male or female?\n");
                string gender = Console.ReadLine();
    
                for (int i = 0; i < gender.Length; i++)
                {
                    if (gender == "Male" || gender == "male" || gender == "Female" || gender == "female")
                    {
                        onlyLetters = true;
                        Console.WriteLine("You are a " + gender.ToLower() + ".\n");
                        break;
                    }
                    else
                    {
                        onlyLetters = false;
                    }
                }
    
                if (onlyLetters == false)
                {
                    Console.WriteLine("Please enter a valid gender.\n");
                    genderCheck();
                }
            }
    
            //Gets weight of the user
            private static void weightCheck()
            {
    
                Console.Write("Please enter your goal weight in lbs.\n");
                string lbs = Console.ReadLine();
    
                int.TryParse(lbs, out weight);
    
                Console.Write("Your goal weight is " + weight + " lbs.\n");
    
            }
    
            //Calculates macros of the user
            private static void calorieCalc()
            {
                Console.Write("\nA multiplier determines calorie intake for cutting, maintenance or bulking diets.\n");
                Console.Write("\nPlease select a calorie multiplier between 10 and 20:\n");
                
                string multSelect = Console.ReadLine();
    
                //Converts multiplier to integer
                int.TryParse(multSelect, out multiplier);
    
                Console.Write("Your multiplier is " + multiplier + ".\n");
    
                numCalories = weight * multiplier;
    
                Console.Write("\nYou should eat " + numCalories + " calories per day.\n");
    
                Console.Write("\nEnter the percentages of each macronutrient (must add up to 100%).\n");
            }
    
            private static void getUserMacros()
            {
    
                //Gets protein percentage from user
                Console.Write("Protein: ");
                string proteinNumber = Console.ReadLine();
    
                float proteinPercent;
                float.TryParse(proteinNumber, out proteinPercent);
    
                //Gets the carb percentage from user
                Console.Write("\nCarbs: ");
                string carbNumber = Console.ReadLine();
    
                float carbPercent;
                float.TryParse(carbNumber, out carbPercent);
    
    
                //Gets the fat percentage from user
                Console.Write("\nFat: ");
                string fatNumber = Console.ReadLine();
    
                float fatPercent;
                float.TryParse(fatNumber, out fatPercent);
    
                //Verifies user input adds up to 100%
                if (proteinPercent + carbPercent + fatPercent != 100)
                {
                    Console.Write("\nSorry! Your selected percentages must add up to 100%. Please try again.\n");
                    getUserMacros();
                }
                else
                {
                    //Calculate Protein Numbers
                    float proteinCalories = numCalories * (proteinPercent / 100);
                    float proteinGrams = proteinCalories / 4;
    
    
                    //Calculate Carb Numbers
                    float carbCalories = numCalories * (carbPercent / 100);
                    float carbGrams = carbCalories / 4;
    
    
                    //Calculate Fat Numbers
                    float fatCalories = numCalories * (fatPercent / 100);
                    float fatGrams = fatCalories / 9;
    
    
                    Console.Write("\nYour recommended macronutrient distribution:\n\n");
                    Console.Write("Protein: " + proteinCalories + " calories (" + proteinGrams.ToString("#.##") + "g)\n");
                    Console.Write("Carbs: " + carbCalories + " calories (" + carbGrams.ToString("#.##") + "g)\n");
                    Console.Write("Fat: " + fatCalories + " calories (" + fatGrams.ToString("#.##") + "g)\n");
                }
            }
        }
    }