gistfile1.txt

#include <locale.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <wchar.h>

// get random number from 0 up to `max` [0 - `(max - 1)` inclusive]
int getRandom(int max);

// fill the array with emotes yay
void fillEmotes(wchar_t *arr, int len);

// fill the "drum" with values
void randomiseDrum(int *drum, int drumWidth, int emotesLength);

// change one column of the drum
int nudgeDrum(int *drum, int drumWidth, int emotesLength, int toNudge);

// print the value of the drum. if `showColNums != 0` then the column numbers will be printed below the drum
void printDrum(int *drum, int drumWidth, int *emotes, int showColNums);

// get an integer value from the user
int getNumFromUser(char *prompt);

// get a single character from the user
char getCharFromUser(char *prompt);

// 0 - loss, 1 - normal win, 2 - jackpot
int getVictoryLevel(int *drum, int drumWidth, int emotesLength);

// print out all the emotes in use this game
void printEmotes(wchar_t *emotes, int emotesLength);

// entrypoint
int main() {
  setlocale(LC_CTYPE, "");
  srand(time(NULL));

  int difficulty = -1;
  while (!(difficulty >= 3 && difficulty <= 6)) {
    difficulty = getNumFromUser("how many symbols? [3 - 6] \u03BB ");
  }

  int emotesLength = difficulty;
  wchar_t emotes[emotesLength];
  fillEmotes(emotes, emotesLength);

  printEmotes(emotes, emotesLength);

  difficulty = -1;
  while (!(difficulty >= 3)) {
    difficulty = getNumFromUser("how wide should the drum be? \u03BB ");
  }

  wprintf(L"to get the jackpot, you will need %d of one symbol\n" \
          L"to win normally, you will need at least %d of one symbol\n\n", difficulty, ( ( difficulty / 2 ) + 1 ));

  int drumWidth = difficulty;
  int drum[drumWidth];
  randomiseDrum(drum, drumWidth, emotesLength);

  for (int i = 0; i < 15; i++) {
    printDrum(drum, drumWidth, emotes, 0);
    randomiseDrum(drum, drumWidth, emotesLength);
  }
  printDrum(drum, drumWidth, emotes, 1);

  char res = getCharFromUser("would you like to nudge a column? [y / n] \u03BB ");
  if (res == 'y' || res == 'Y') {
    int res2 = getNumFromUser("which column? enter a number not listed to cancel [0..n] \u03BB ");
    if (nudgeDrum(drum, drumWidth, emotesLength, res2)) {
      printDrum(drum, drumWidth, emotes, 1);
    } else {
      wprintf(L"nudge cancelled - calculating victory...\n");
    }
  }

  switch (getVictoryLevel(drum, drumWidth, emotesLength)) {
    wchar_t emote;
    case 1: { // normal win
      emote = 0x1F4B8;
      wprintf(L" %lc you win! reckon you can get a jackpot next time?", emote);
      break;
    }
    case 2: { // jackpot win
      emote = 0x1F911;
      wprintf(L" %lc JACKPOT!!! can you do it again though?", emote);
      break;
    }
    default: { // loss
      emote = 0x1F61E;
      wprintf(L" %lc tough luck... maybe you'll do better in the next game", emote);
      break;
    }
  }

  return 0;
}

void fillEmotes(wchar_t *arr, int len) {

  wchar_t storage[] = { // 6
    0x1F514, // bell
    0x1F34A, // orange
    0x1F352, // cherry
    0x1F4B0, // moneybag
    0x1F34E, // apple
    0x1F3E6  // bank
  };

  for (int i = 0; i < len; i++) {
    arr[i] = storage[i];
  }

}

int getRandom(int max) {
  return rand() % max;
}

void randomiseDrum(int *drum, int drumWidth, int emotesLength) {
  for (int i = 0; i < drumWidth; i++) {
    drum[i] = getRandom(emotesLength);
  }
}

int nudgeDrum(int *drum, int drumWidth, int emotesLength, int toNudge) {
  if (toNudge >= drumWidth || toNudge < 0) {
    return 0;
  }
  drum[toNudge] = getRandom(emotesLength);
  return 1;
}

void printDrum(int *drum, int drumWidth, int *emotes, int showColNums) {
  wprintf(L" | ");

  for (int i = 0; i < drumWidth; i++) {
    wprintf(L"%lc | ", emotes[drum[i]]);
  }
  if (showColNums) {
    wprintf(L"\n | ");
    for (int i = 0; i < drumWidth; i++) {
      wprintf(L"%-*d | ", 2, i);
    }
    wprintf(L"\n");
  } else {
    wprintf(L"\n");
  }
}

int getNumFromUser(char *prompt) {
  int res;
  wprintf(L"%s", prompt);
  wscanf(L" %d", &res);

  int c;
  while ((c = getchar()) != '\n' && c != EOF)
    continue;

  return res;
}

char getCharFromUser(char *prompt) {
  char res;
  wprintf(L"%s", prompt);
  wscanf(L" %lc", &res);

  return res;
}

int getVictoryLevel(int *drum, int drumWidth, int emotesLength) { // this should work for all sizes of drum
  int successLevel = 0;
  int counts[emotesLength];

  // wprintf(L"Debug: Counting %d emotes...\n", emotesLength); // DEBUG

  for (int emote = 0; emote < emotesLength; emote++) { // count each emote
    // wprintf(L"  Counting emote #%d\n", emote); // DEBUG
    counts[emote] = 0;

    for (int drumCol = 0; drumCol < drumWidth; drumCol++) { // loop through drum
      counts[emote] += drum[drumCol] == emote ? 1 : 0;
      // wprintf(L"    %d\n", counts[emote]); // DEBUG
    }


    if (counts[emote] == drumWidth) { // [ width ] - jackpot
      successLevel = 2;
      // wprintf(L"  Jackpot counted\n"); // DEBUG
      break; // short circuit
    } else if (counts[emote] >= (( drumWidth / 2 ) + 1 )) { // [ ( width / 2 ) + 1 ] - not jackpot but no other emote will have more
      successLevel = 1;
      // wprintf(L"  Normal victory counted\n"); // DEBUG
      break; // short circuit
    }
  }

  return successLevel;
}

void printEmotes(wchar_t *emotes, int emotesLength) {
  wprintf(L"symbols in play: ");

  for (int i = 0; i < emotesLength; i++) {
    wprintf(L"%lc ", emotes[i]);
  }

  wprintf(L"\n");
}