Simple wordle C program for ICS4U

wordle.c

#include <stdio.h>
#include <ctype.h>
#include <time.h>
#include <stdlib.h>

typedef char *string;

typedef enum boolean
{
    false,
    true
} boolean;

typedef enum Color
{
    REGULAR,
    GRAY,
    YELLOW,
    GREEN
} Color;

string word;
char guesses[6][6];
int stage = 0;

string getColor(Color color)
{
    switch (color)
    {
    case REGULAR:
        return "\033[0m";
    case GRAY:
        return "\033[1;30m";
    case YELLOW:
        return "\033[1;33m";
    case GREEN:
        return "\033[1;32m";
    }
}

boolean contains(char character)
{
    for (int i = 0; i < 5; i++)
        if (word[i] == character)
            return true;

    return false;
}

boolean win() {
    for (int i = 0; i < 5; i++)
        if (word[i] != guesses[stage][i])
            return false;

    return true;
}

void randomWord() {
    srand(time(NULL));
    int random = rand() % 5;

    switch(random) {
    case 0:
        word = "THROW";
        break;
    case 1:
        word = "LOVED";
        break;
    case 2:
        word = "TREAT";
        break;
    case 3:
        word = "REPOS";
        break;
    case 4:
        word = "BLADE";
        break;
    }
}

void convertUpper()
{
    for (int i = 0; i < 5; i++)
        guesses[stage][i] = toupper(guesses[stage][i]);
    
}

void printChart()
{
    printf("\n\nStage %d/6\n", stage + 1);

    for (int i = 0; i < stage + 1; i++)
    {
        for (int j = 0; j < 5; j++)
        {
            string color = getColor(GRAY);

            if (word[j] == guesses[i][j])
                color = getColor(GREEN);
            else if (contains(guesses[i][j]))
                color = getColor(YELLOW);

            printf("%s%c ", color, guesses[i][j]);
        }
        printf("%s\n", getColor(REGULAR));
    }
}

int main()
{
    randomWord();

    printf("\nWelcome to %sWO%sR%sD%sLE%s!\n", getColor(GREEN), getColor(YELLOW), getColor(GRAY), getColor(GREEN), getColor(REGULAR));

    for (; stage < 6; stage++)
    {
        printf("\nPlease enter a 5 letter word: ");
        scanf("%s", guesses[stage]);
        convertUpper();
        printChart();
        if (win()) {
            printf("\nYou guessed the correct word in %d rounds. Good job!\n", stage + 1);
            return 0;
        }
    }

    printf("\nYou were unable to guess the correct word.\nThe correct word was %s%s%s. Feel free to play again!\n", getColor(GREEN), word, getColor(REGULAR));

}