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#include <stdio.h>
#include <math.h>
#include <string.h>
#define NUMCARDS 9
#define PRODUCTION 1 /** 0=debug-mode | 1=production mode **/
int getCards(int *);
void displayCards(int *, int);
int getSuit(int codedNumber);
int getCardValue(int codedNumber);
int calculateHandValue(int *, int);
int simpleSumCards(int *, int numCards);
int hasThreeOrMoreNonNumberCards(int *, int numCards);
int isPrime(unsigned int number);
int nextHighestPowerOfTwo(int value);
int main() {
int numCards;
printf("\n Welcome to Up-To-9-Cards Game!");
printf("\n================================\n");
#if PRODUCTION == 1
/** User Interface - Production mode **/
int cards[NUMCARDS];
numCards = getCards(&cards[0]);
#endif // PRODUCTION
#if PRODUCTION == 0
/** Test Code - Debug mode **/
printf("\nRunning program in Debug mode\n");
// int cards[] = {4,5,6,7,40,41,42,43,51}; //simpleValue = 50
// int cards[] = {22, 8, 16, 45, 2}; // example 1 - 22 points
// int cards[] = {47,9,40,48}; // example 2 - 1232 points
// int cards[] = {24}; // example 3 - 15 points
int cards[] = {50, 49, 2}; // example 4 - 1003 points
numCards = sizeof(cards) / sizeof(int);
#endif // PRODUCTION
displayCards(&cards[0], numCards);
printf("\n\nDone!\n");
return 0;
}
int getSuit(int codedNumber) {
return codedNumber % 4;
}
int getCardValue(int codedNumber) {
return (codedNumber / 4) + 1;
}
int getCards(int arr[]) {
int numCards = 0;
int input;
while (numCards <= 8) {
printf("Please enter a card or enter -1 to end: ");
scanf("%d", &input);
if (input <= 51 && input >= 0) {
arr[numCards] = input;
} else if (input == -1) {
return numCards;
} else {
printf("Not a valid card entry\n");
continue;
}
numCards++;
}
return numCards;
}
void displayCards(int arr[], int size) {
printf("Your hand is:\n");
for (int i = 0; i < size; i++) {
int cardValue = getCardValue(arr[i]);
int suitNum = getSuit(arr[i]);
char suit[10];
if (suitNum == 0) {
strncpy(suit, "Clubs", 10);
} else if (suitNum == 1) {
strncpy(suit, "Spades", 10);
} else if (suitNum == 2) {
strncpy(suit, "Diamonds", 10);
} else {
strncpy(suit, "Hearts", 10);
}
printf(" %d of %s\n", cardValue, suit);
}
printf("\n");
int handValue = calculateHandValue(arr, size);
printf("The Total value of your hand is:\n%d", handValue);
}
int calculateHandValue(int arr[], int size) {
int baseScore = simpleSumCards(arr, size);
int totalValue = baseScore;
if (hasThreeOrMoreNonNumberCards(arr, size)) {
totalValue = totalValue * totalValue + 7;
}
if (isPrime(totalValue)) {
totalValue = totalValue + nextHighestPowerOfTwo(totalValue);
}
return totalValue;
}
int nextHighestPowerOfTwo(int value) {
return pow(2, ceil(log2(value)));
}
int simpleSumCards(int arr[], int numCards) {
int sum = 0;
for (int i = 0; i < numCards; i++) {
sum = sum + getCardValue(arr[i]) - getSuit(arr[i]);
}
return sum;
}
int hasThreeOrMoreNonNumberCards(int arr[], int numCards) {
int count = 0;
for (int i = 0; i < numCards; i++) {
if (getCardValue(arr[i]) >= 11 || getCardValue(arr[i]) == 1) {
count++;
}
}
return count >= 3;
}
int isPrime(unsigned int number) {
unsigned int i;
for (i = 2; i * i <= number / 2; i++) {
if (number % i == 0) return 0;
}
return 1;
}
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