highScore.cpp

#include "declarations.h"
#include "prototype.h"

extern Application app;

/// This function compares the existing high score with the players score to see if it is the high score.
/// It stores the high score in a text file
/// Need to pass the users score
/// Int return type
int checkHighScore(int playerScore) {

    //Declare file variable and variables
    int highScore[NUMBER_OF_HIGHSCORES] = {0};
    bool userIsHighScore = false;
    int returnCode = 0;
    int timerCount = 0;
    static bool userScoreAddedToScoreLog = false;
    FILE *fptr;

    // Get timer count
    timerCount = al_get_timer_count(app.displayTimer);

    // Based on the timer count display the event
    switch (timerCount) {
        case 0:
            // Open the high score file and copy the high scores
            fptr = fopen("highScore.txt", "r");
            returnCode = checkIfFileLoaded(fptr);
            if (returnCode != 0) {
                return returnCode;
            }
            for (int i = 0; i < NUMBER_OF_HIGHSCORES; i++) {
               fscanf(fptr, "%d", &highScore[i]);
            }
            fclose(fptr);

            // Print out the current high scores
            al_clear_to_color(SLATEGREY);
            al_draw_textf(app.arial, RED, 620, 0, ALLEGRO_ALIGN_RIGHT, "Score: %d", playerScore);
            al_draw_text(app.arial, BLACK, SCREEN_WIDTH / 2, 100, ALLEGRO_ALIGN_CENTER, "The current high score is:");
            printHighScore(highScore);
            al_flip_display();
            break;
        case 1:
            for (int i = 0; i < NUMBER_OF_HIGHSCORES; i++) {
                if (playerScore > highScore[i]) {
                    // This formula took forever for me to create, I had to create models and so on
                    // Basically it moves every high score down one slot starting where the new high score is taking place.
                    // For example if the new high score is slot number 4 then high score 5 will the previous high score 4.
                    // I really did not want to hard code it because I wanted to make this program as flexible and changeable as possible
                    for (int j = (NUMBER_OF_HIGHSCORES - 1); j > i; j--) {
                        highScore[j] = highScore[j-1];
                    }

                    highScore[i] = playerScore;

                    // Print out the new high scores if the user obtained a high score
                    al_clear_to_color(SLATEGREY);
                    al_draw_textf(app.arial, RED, SCREEN_WIDTH / 2, 25, ALLEGRO_ALIGN_CENTER, "Your score is the new high score in slot %d", i + 1);
                    al_draw_text(app.arial, BLACK, SCREEN_WIDTH / 2, 100, ALLEGRO_ALIGN_CENTER, "The new current high score is:");
                    printHighScore(highScore);

                    // Print out the new high scores into the text file
                    fptr = fopen("highScore.txt", "w");
                    returnCode = checkIfFileLoaded(fptr);
                    if (returnCode != 0){
                        return returnCode;
                    }
                    for (int i = 0; i < NUMBER_OF_HIGHSCORES; i++) {
                        fprintf(fptr, "%d\n", highScore[i]);
                    }
                    fclose(fptr);

                    userIsHighScore = true;
                    al_flip_display();

                }
            }
            // User is not a high score
            if (!userIsHighScore) {
                al_clear_to_color(SLATEGREY);
                al_draw_text(app.arial, BLACK, SCREEN_WIDTH /2, 100, ALLEGRO_ALIGN_CENTER, "Your score is not a high score");
                al_flip_display();
            }
            break;
        case 2:
            al_clear_to_color(SLATEGREY);

            // Find the average high score
            returnCode = averageHighscore(playerScore, userScoreAddedToScoreLog);
            if (returnCode != 0) {
                return returnCode;
            }
            al_flip_display();
            break;
        case 3:
            al_stop_timer(app.displayTimer);
            al_set_timer_count(app.displayTimer, 0);
            userScoreAddedToScoreLog = false;
            break;
    }

    return 0;
}

///`This function prints out the high scores
/// Need to pass the high score
/// No return type
void printHighScore(int highScore[]) {

    for (int i = 0; i < NUMBER_OF_HIGHSCORES; i++) {
        al_draw_textf(app.arial, BLACK, SCREEN_WIDTH / 2, 140+i*30, ALLEGRO_ALIGN_CENTER,  "%d", highScore[i]);
    }
}

/// This calculates the average scores in the score log plus the users current score
/// Need to pass the players score
/// Int return type
int averageHighscore(int playerScore, bool &userScoreAddedToScoreLog) {

    //Declare variables and file
    int scoreFromLog = 0;
    int counter = 0;
    float averageScore = 0;
    int sum = 0;
    int returnCode = 0;
    FILE *fptr;

    // Open and copy the scores from the file
    fptr = fopen("scoreLog.txt", "r");
    returnCode = checkIfFileLoaded(fptr);
    if (returnCode != 0){
        return returnCode;
    }

    while (fscanf(fptr, "%d", &scoreFromLog) != EOF) {
        counter ++;
        sum += scoreFromLog;
    }
    fclose(fptr);

    if (!userScoreAddedToScoreLog){
        // Open and append the users score to the score log
        fptr = fopen("scoreLog.txt", "a");
        returnCode = checkIfFileLoaded(fptr);
        if (returnCode != 0) {
            return returnCode;
        }
        fprintf(fptr, "\n%d", playerScore);
        fclose(fptr);
        userScoreAddedToScoreLog = true;
    }
    // Add the users current score to the sum and calculate average
    sum += playerScore;
    counter ++;
    averageScore = (float)sum / (float)counter;

    // Print average score
    al_draw_textf(app.arial, BLACK, SCREEN_WIDTH / 2, 100, ALLEGRO_ALIGN_CENTER, "The average overall score is %.2f", averageScore);

    return 0;
}