LucianoScarpaci_Lab2-3

/*
COP 2220 Lab 2: User-defined functions
Date 2/11/2021
Purpose - User-defined functions, function prototypes and function calls
Author: Luciano Scarpaci
*/

#include <stdio.h>
#define RATE_PER_MILE 0.35
#include <math.h>

//Function Prototypes (ensure names are relevant)

/* Function that calculates the difference in the number of miles traveled. 
(begin and end odom reading)*/
double mileDif(double begMile, double endMile);

/*Function that uses the number of miles traveled to calculate the value of 
reinbursement*/
double calcReimbursement(double milesTraveled);

/*Function that calculates the MPG (miles/gallon)*/
double calcMPG(double milesTraveled, double galConsumed);

/*Simple display function to print the data we have calculated so far*/
void printResults(double milesTraveled, double reinbursement, double MPG);

int main()
{
    double begRead, endRead, begMile, endMile;
    double milesTraveled, galConsumed, reimbursement, MPG;
    printf("MILEAGE REIMBURSEMENT AND MPG CALCULATOR\n");
    printf("Enter beginning odometer reading => ");
    scanf("%lf", &begRead);

    printf("Enter ending odometer reading => ");
    scanf("%lf", &endRead);

    printf("Enter gallons of gas consumed => ");
    scanf("%lf", &galConsumed);
    /* Use function calls to calculate the miles travelled, reimbursement
    * value and MPG of the vehicle.
    */
   mileDif(begMile, endMile);
   calcReimbursement(milesTraveled);
   calcMPG(milesTraveled, galConsumed);
   // Use the fourth function to display the information
   printResults(milesTraveled, reimbursement, MPG);

   return 0;
    

}

//Function 1 the function should accept two double types and return 
// the difference of the two values.
// begMile 1 endMile 2
double mileDif(double begMile, double endMile)
{
    
    double difference;
    difference = (fabs(begMile - endMile));
    //returning the difference
    return difference;

}
//Function 2 function take the miles traveled and calculates the 
// reimbursement amount based on the reimbursement rate of 0.35 /mile.
    
double calcReimbursement(double milesTraveled)
{
    
    double reimbursementAmount = (milesTraveled * RATE_PER_MILE);
    //returning the reimbursement amount
    return reimbursementAmount;
}
//Function 3 definition the function should take the miles travelled 
//and number of gallons of gas consumed and return the gas consumption
//of the vehicle in miles per gallon (mpg).
double calcMPG(double milesTraveled, double galConsumed)
{
    double totalGasConsumption;
    totalGasConsumption = (milesTraveled / galConsumed);
    //returning the gas consumption of the vehicle
    return totalGasConsumption;
}
//Function 4 defintion The function should print 3 inputs as follows
/* You traveled 305.4 miles. At $0.35 per mile, your reinbursement is
* $106.89.
* Your vehicle gas consumption is : 25.5 mpg
* */
void printResults(double milesTraveled, double reinbursement, double MPG)
{
    printf("You traveled %lf miles. At $0.35 per mile,\n", endRead-begRead, (endRead-begRead * 0.35));
    printf("your reimbursement is $%lf.\n", calcReimbursement);
    printf("Your vehicle gas consumption is: %lf MPG\n", calcMPG);

}