/* Program that will simulate a mathematics quiz game
Author: Dylan Heathcote c19434966
Date: 29/10/2019
*/

#include <stdio.h>
int main()
{
    //display menu section
    int choice;
    int quizTotal = 0;
    int correctAnswer = 0;
    int incorrectAnswer = 0;
    int i;
    int quizAttempt = 0;



    do
    {
        printf("\n1). Quiz Duration\n");
        printf("2). Start Quiz\n");
        printf("3). Display the number of questions that were answered correctly and incorrectly\n");
        printf("4). Exit Program\n\n");
        scanf(" %d", &choice);
        while(getchar()!='\n');



        //menu input
        switch(choice)
        {

            //menu selection 1
            case(1):
            { //start case
                printf("How many questions would you like to be asked between 1 and 5?\n");


                //check user input for menu selection 1
                scanf("%d", &quizTotal);

                if(quizTotal == 1)
                {
                    printf("\nYou will be asked %d question(s)\n\n", quizTotal);
                }


                else if(quizTotal == 2)
                {
                    printf("\nYou will be asked %d question(s)\n\n", quizTotal);
                }


                else if(quizTotal == 3)
                {
                    printf("\nYou will be asked %d question(s)\n\n", quizTotal);
                }


                else if(quizTotal == 4)
                {
                    printf("\nYou will be asked %d question(s)\n\n", quizTotal);
                }


                else if(quizTotal == 5)
                {
                    printf("\nYou will be asked %d question(s)\n\n", quizTotal);
                }


                //error check
                else
                {
                        do
                        {
                            printf("\nPlease enter a valid input \n\n");
                            scanf("%d", &quizTotal);
                        }
                        while(quizTotal >= 6 || quizTotal <= 0);
                } //end else


            break;
            } //end case 1



            //menu selection 2
            case(2):
            { // start case


                /*
                                    tells the program that the quiz was completed
                                    to satisfy the condition for menu selection 3
                                */
                quizAttempt++;



                // user inputs for menu selection 2
                    printf("You will now be asked %d question(s)\n\n", quizTotal);


                    //quiz questions
                    for(i = 0; i == quizTotal; i++)
                    {
                        //local variable
                        int answer;




                        //question 1
                        printf("What is 2 + 2?\n");
                        scanf("%d", &answer);

                        if(answer == 4)
                        {
                            printf("Correct!\n\n");
                            i++;
                            correctAnswer++;
                        }

                        else
                        {
                            printf("Incorrect! - The answer was: 4\n\n");
                            i++;
                            incorrectAnswer++;
                        }



                        //question 2
                        printf("What is 9 * 3?\n");
                        scanf("%d", &answer);

                        if(answer == 27)
                        {
                            printf("Correct!\n\n");
                            i++;
                            correctAnswer++;
                        } //end if question 2

                        else
                        {
                            printf("Incorrect! - The answer was: 27\n\n");
                            i++;
                            incorrectAnswer++;
                        } //end else question 2



                        //question 3
                        printf("What is 4 / 2?\n");
                        scanf("%d", &answer);

                        if(answer == 2)
                        {
                            printf("Correct!\n\n");
                            i++;
                            correctAnswer++;
                        } //end if question 3

                        else
                        {
                            printf("Incorrect! - The answer was: 2\n\n");
                            i++;
                            incorrectAnswer++;
                        } //end else question 3



                        //question 4
                        printf("What is 95 - 7?\n");
                        scanf("%d", &answer);

                        if(answer == 88)
                        {
                            printf("Correct!\n\n");
                            i++;
                            correctAnswer++;
                        } //end if question 4

                        else
                        {
                            printf("Incorrect! - The answer was: 88\n\n");
                            i++;
                            incorrectAnswer++;
                        } //end else question 4



                        //question 5
                        printf("What is 45 * 2?\n");
                        scanf("%d", &answer);

                        if(answer == 90)
                        {
                            printf("Correct!\n\n");
                            i++;
                            correctAnswer++;
                        } //end if question 5

                        else
                        {
                            printf("Incorrect! - The answer was: 90\n\n");
                            i++;
                            incorrectAnswer++;
                        } //end else question 5

                    } //end for


            break;
            } //end case 2



            //menu selection 3
                case(3):
                {
                    if(quizAttempt < 1)
                    {
                        printf("Sorry you must first complete the test");
                    }

                    else
                    {
                        printf("\nYou have scored %d question(s) correct\n", correctAnswer);
                        printf("\nYou have scored %d question(s) incorrect\n", incorrectAnswer);
                    } //end else

                break;
                } //end case 3


            //menu selection 4
            case(4):
            {
                printf("\n\nProgram will now end\n");
                printf("Press any key to exit\n");

            break;
            } //end case 4



            default:
            printf("Invalid input\n\n");
        } //end switch



    } // end outer do
    while(choice != 4);



    flushall();
    getchar();
    return 0;
} //end main