Description Build a casino where the user can play the following games in C prog
ID: 3863364 • Letter: D
Question
Description
Build a casino where the user can play the following games in C programming language.
1) Lucky Seven
2) High Card
3) Match Card
The user starts with $100. The user is then prompted to pick a game. All inputs must be error checked. The user is then asked how much they want to bet on the game. (Cannot be 0 or more than the user currently has.) Depending on the user’s outcome, the user either wins or loses the amount they bet. All the games require a deck of cards (simulated with an array). The cards will need to be shuffled before each game. The user is kicked out of the casino if they have no money left.
Game Descriptions
Lucky Seven
The user draws a card. If the card value is equal to 7, the user wins 7X the amount bet. If the card value is not 7, the user loses the amount bet.
High Card
The user draws a card from the deck, and the computer picks a random (different) card. If the computer’s card is higher, then the player loses. If the player’s card is higher, then the player wins. For this version, all cards are different numbers.
Match Card
The user does not bet for this game. Works similar to high card, except there will be 4 “decks of cards” in play. (Use a 2D array) The user will choose a deck and a card. The computer will pick a random card from a random deck. If the value of the user’s card matches the computer’s card, then the user doubles their total money. If the user loses, then the user loses everything.
Random Number Generator
Use the rand() function from <stdlib.h> to generate random numbers. The output will need to be between 0-12 for card operations. Use rand() and the % operator. SIZE is a global constant. Treat it like a variable that you can’t change. Use it for all card operations where you need the value for size of the deck.
To use the functions srand and rand:
#include <stdlib.h>
#include <time.h>
#define SIZE 13 //You are dealing with only 13 cards not 52 just an FYI
Goes at the top of your code, and:
srand(time(NULL));
As the first line of code inside of main()
Win/loss calculation table
Example
For Lucky Seven, if the user has an initial amount of $100, bets $25 and wins, then total = 100 + 7 * 25->$275
If they lose, then the total = 100 - 25 -> $75
Function Prototypes & Descriptions
void display_menu();
/*
Displays the menu for choosing a game. Should only have printf statements.
Arguments – None
Return Nothing
*/
int error_check(int);
/*
Argument – int: option chosen in main
Check if the options chosen is valid or not
Returns 1 if input is valid, 0 otherwise.
*/
void shuffle(int[]);
/* Argument – int Array signifying deck of cards, which was created in main
Return Nothing
Takes in the deck of cards array, loads with values from 1-13 and shuffles the order. Do not create a new array. Hint: Pass by reference!
Remember: Index of an array starts from location 0, your deck must have card values from 1-13. To shuffle the order use rand() function to get a random index and then swap the values. Example: After loading the deck with values from 1-13 in the locations 0-12, your deck is loaded. Now to shuffle, as of now at location 0, value is 1 and at location 1 value is 2 and so on. Imagine rand() returns a random index 3(which has the card value 4 in it now), you have to swap this with whatever is in location 0. This was just a one-time swap; you have to do it for all the 13 locations. How do you do it??
Hint: Bubble sort logic (but you are not sorting anything here).
*/
int draw_card(int[]);
/*
Picks the first card that hasn’t been drawn already, marks it as “taken” and
returns the value of the card.
Change value to -1 at the location to indicate “taken”
Arguments— int[] deck of cards, which was created in main()
return – int: value of card drawn.
*/
int lucky_seven(int);
/*
Implements lucky seven game logic. Takes in one card value and checks if it is equal to 7.
return 1 if value matches indicating the user won, return 0 if user loses.
*/
int high_card(int, int);
/*
High Card game logic. Takes in card values and checks which one is higher.
return 1 if user card is greater than dealer card indicating user wins, return 0 if user loses.
*/
double calculate_winnings(int, int, double);
/*
Calculates winnings based on game played and if the user won.
Arguments- int: game played, int: win or loss, double: amount bet
return double: amount won or lost.
Refer the table above.
*/
int match_card(int, int);
/*
Game is only played when the user decides to quit. (Give them a last minute chance to double their money)
Takes in card values and checks if they are the same.
return 1 if user wins, return 0 if user loses
*/
int main(void) {}
/*
Acts as user interaction, creates arrays, calls other functions, keeps track of user’s total money.
First display the menu of games to play.
Declare all the variable you need to use and also the array representing the deck
Every time a game is played, display the amount the user has left and ask the user to enter the amount he wants to bet. Assume the user won’t mess up (brownie points if you check this too).
Next, display the result of the game (display if the user won or lost, display the card(s) drawn, and the amount of money gained/lost).
Continue to play the game as long as user does not choose to exit and still has money.
Display final amount of money when the user quits or gets thrown out.
For the bonus, create a 2D Array representing 4 decks of 13 cards each. Shuffle each deck and choose two random cards from two different decks. Display cards drawn and if the user won or lost.
*/
Sample Output
Characters in BOLD are inputs from the user.
./a.out
Welcome to the Casino!
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
4
Invalid choice; Try again.
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
-1
Invalid choice; Try again.
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
1
How much do you want to bet? $5
Lucky Seven
You drew 1.
You lost $5.00. Too bad.
Your total money is $95.00.
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
1
How much do you want to bet? $7
Lucky Seven
You drew 1.
You lost $7.00. Too bad.
Your total money is $88.00.
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
2
How much do you want to bet? $50
High Card
You drew 1. The dealer drew 6.
You lost $50.00. Too bad.
Your total money is $38.00.
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
3
Wait! Before you go, do you want a chance to double your money???
1) Yes
2) No
1
Match Card
You drew 3. The dealer drew 11.
You lost everything!!!
Your total is now $0.00.
Thanks for playing
./a.out
Welcome to the Casino!
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
3 // SHOULD EXIT
Wait! Before you go, do you want a chance to double your money???
1) Yes
2) No
2
Bye!
./a.out
Welcome to the Casino!
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
1
How much do you want to bet? $100
Lucky Seven
You drew 2.
You lost $100.00. Too bad.
Your total money is $0.00.
You have been thrown out of the casino.
Be more careful with your money next time.
./a.out
Welcome to the Casino!
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
1
How much do you want to bet? $57
Lucky Seven
You drew 1.
You lost $57.00. Too bad.
Your total money is $43.00.
Which game do you want to play?
1) Lucky Seven
2) High Card
3) Exit
1
How much do you want to bet? $43
Lucky Seven
You drew 1.
You lost $43.00. Too bad.
Your total money is $0.00.
You have been thrown out of the casino.
Be more careful with your money next time!
Explanation / Answer
//CPP program for converting roman into integers
#include <iostream>
#include <fstream>
#include<cctype>
#include<cstdlib>
#include<string.h>
using namespace std;
// Takes a roman character as input, and will return its integer equivalent,
// given the input is a valid roman character, and returns -1 otherwise.
int value(char roman)
{
switch(roman)
{
case 'I':return 1; //If the input is: I, returns 1.
case 'V':return 5; //If the input is: V, returns 5.
case 'X':return 10; //If the input is: X, returns 10.
case 'L':return 50; //If the input is: L, returns 50.
case 'C':return 100; //If the input is: C, returns 100.
case 'D':return 500; //If the input is: D, returns 500.
case 'M':return 1000; //If the input is: M, returns 1000.
default : return -1; //If neither of the above characters, returns -1.
}
}
//Takes a roman number string as input, and returns its equivalent integer as output.
int get(const string& input)
{
int total=0;
char prev='%';
for(int i=(input.length()-1); i>=0; i--) //From the last character in the input string, down till the first character.
{
if(value(input[i])==-1) //If the character in the input string is not a valid roman literal.
return -1; //Return -1.
if(value(input[i])<total && (input[i]!=prev)) //If the current literal value is less than tha total,
//and current literal is not same as the previous literal.
{
total -= value(input[i]); //Subtract the current literal value, from the total.
prev = input[i]; //Mark the current literal as prev, and move forward.
}
else //If that condition is not satisfied.
{
total += value(input[i]); //Add the current literal value, to the total.
prev = input[i]; //Mark the current literal as prev, and move forward.
}
}
return total; //After the characters in string are exhausted, return the total value.
}
int main()
{
char str[255]; //Declares an array of characters.
int val; //Declares an integer.
ifstream in("Roman.txt"); //Reads the file Roman.txt as input file stream.
if(!in) { //If file is not opened successfully.
cout << "Cannot open input file. "; //Push a message to screen.
return 1; //And stop execution.
}
while(in) { //Keep reading line by line of input from the file, till end of file is reached.
in.getline(str, 255); // delim defaults to ' '
if(in) //If read value is not end of file.
{
val=get(str); //Call the function get, which return the integer equivalent of roman string, and stores the returned value in val.
if(val==-1) //If the read string is invalid.
cout << "Invalid character"<<endl; //Show this message to screen.
else //If valid.
cout << str << " = "<<val<<endl; //Show the integer value to screen.
}
}
in.close(); //After reading all the strings from file, close the file.
return 0; //Stop execution.
}