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UPDATED PLINKO SIMULATION

rantiv (101)
I need help with formatting. I cant get my winnings from path of a single drop get .00, and also i think my whole loop condition isnt doing what i want it to do.

This is how the output should look like

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: -1

INVALID SELECTION. Please enter 0, 1 or 2

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 3

INVALID SELECTION. Please enter 0, 1 or 2

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 1

*** DROP SINGLE CHIP ***

Which slot do you want to drop the chip in (0-8)? -1

INVALID SLOT.

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 1

*** DROP SINGLE CHIP ***

Which slot do you want to drop the chip in (0-8)? 9

INVALID SLOT.

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 1

*** DROP SINGLE CHIP ***

Which slot do you want to drop the chip in (0-8)? 5

*** DROPPING CHIP INTO SLOT 5 ***
PATH: [5.0 4.5 4.0 4.5 5.0 4.5 4.0 4.5 4.0 4.5 5.0 4.5 5.0]
WINNINGS: $0.00

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 2

*** DROP MULTIPLE CHIPS ***

How many chips do you want to drop (>0)? -1

INVALID NUMBER OF CHIPS.

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 2

*** DROP MULTIPLE CHIPS ***

How many chips do you want to drop (>0)? 142

Which slot do you want to drop the chip in (0-8)? 7

Total Winnings on 142 chips: 115100.00
Average winnings per chip: 810.56

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now: 0

GOODBYE! 

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#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <iomanip>
#include <stdlib.h>

using namespace std;

const double PRIZE_0 = 100.00;
const double PRIZE_1 = 500.00;
const double PRIZE_2 = 1000.00;
const double PRIZE_3 = 0.00;
const double PRIZE_4 = 10000.00;
const double PRIZE_5 = 0.00;
const double PRIZE_6 = 1000.00;
const double PRIZE_7 = 500.00;
const double PRIZE_8 = 100.00;

int main()
{
	
	int menuChoice;
	srand(42);
	
   cout << "Welcome to the plinko simulator!" << endl << endl;
   
	do
	{
		cout << "MENU: Please select one of the following options:" << endl << endl;
		cout << "0 - Quit the program" << endl;
		cout << "1 - Drop a single chip into one slot" << endl;
		cout << "2 - Drop multiple chips into one slot" << endl << endl;
		cout << "Enter your selection now: " << endl;
		cin >> menuChoice;

		switch (menuChoice)
		{
		case 1:
			cout << "*** DROP SINGLE CHIP ***" << endl << endl;
			cout << "Which slot do you want to drop the chip in (0-8)? ";
			int slotNumber;
			cin >> slotNumber;
			if (slotNumber > 8 || slotNumber < 0)
				{
					cout << "INVALID SLOT. Please enter an integar between 0 and 8" << endl <<endl;
					break;
				}
			else
				{
					double slotNumberDouble = slotNumber;
					cout << fixed << setprecision(1);
					cout << endl;
					cout << "*** DROPPING CHIP INTO SLOT " << slotNumber << " ***";
					cout << endl;
					
					
					cout << "PATH: [" << slotNumberDouble;

					double chipLocation = slotNumber;
										
					for (int i = 0; i < 12; i++)
					{
						int randomNumber = rand();
						if (randomNumber % 2 == 1)
						{
							chipLocation += 0.5;
							if (chipLocation > 8)
							{
								chipLocation -= 1.0;
								cout << " " << chipLocation;
							}
							else
							{
								cout << " " << chipLocation;
							}
						}
						else
						{
							chipLocation -= 0.5;
							if (chipLocation < 0)
							{
								chipLocation += 1.0;
								cout << " " << chipLocation;
							}
							else
							{
								cout << " " << chipLocation;
							}
						}
					}

					cout << "]";
					
					int finalLocationChip2 = chipLocation;

					switch (finalLocationChip2)
					{
						case 0:
							finalLocationChip2 = PRIZE_0;
							break;
						case 1:
							finalLocationChip2 = PRIZE_1;
							break;
						case 2:
							finalLocationChip2 = PRIZE_2;
							break;
						case 3:
							finalLocationChip2 = PRIZE_3;
							break;
						case 4:
							finalLocationChip2 = PRIZE_4;
							break;
						case 5:
							finalLocationChip2 = PRIZE_5;
							break;
						case 6:
							finalLocationChip2 = PRIZE_6;
							break;
						case 7:
							finalLocationChip2 = PRIZE_7;
							break;
						case 8:
							finalLocationChip2 = PRIZE_8;
							break;
					}
					cout << fixed << setprecision(2) << "\nWINNINGS: $" << finalLocationChip2 << endl << endl;
				}
			break;

		case 2: 
		   cout << endl;
			cout << "*** DROP MULTIPLE CHIPS ***"<< endl;
			cout << "How many chips do you want to drop (>0)? ";
			int chipNumber;
			cin >> chipNumber;
			if (chipNumber < 1)
			{
				cout << "INVALID NUMBER OF CHIPS. Please enter an integar greater than zero." << endl << endl;
				break;
			}
			else
			{
				cout << "Which slot do you want to drop the chip in (0-8)? ";
				int slotNumber2;
				cin >> slotNumber2;
				if (slotNumber2 > 8 || slotNumber2 < 0)
				{
					cout << "INVALID SLOT. Please enter an integar between 0 and 8";
					cout<< endl << endl;
					break;
				}
				else
				{
					double totalWinnings = 0;
					for (int i = 0; i < chipNumber; i++)
					{
						double chipLocation = slotNumber2;

						for (int i = 0; i < 12; i++)
						{
							int randomNumber = rand();
							if (randomNumber % 2 == 1)
							{
								chipLocation += 0.5;
								if (chipLocation > 8)
								{
									chipLocation -= 1.0;
								}
							}
							else
							{
								chipLocation -= 0.5;
								if (chipLocation < 0)
								{
									chipLocation += 1.0;
								}
							}

						}
						int finalLocationChip2 = chipLocation;

						switch (finalLocationChip2)
						{
						case 0:
							finalLocationChip2 = PRIZE_0;
							break;
						case 1:
							finalLocationChip2 = PRIZE_1;
							break;
						case 2:
							finalLocationChip2 = PRIZE_2;
							break;
						case 3:
							finalLocationChip2 = PRIZE_3;
							break;
						case 4:
							finalLocationChip2 = PRIZE_4;
							break;
						case 5:
							finalLocationChip2 = PRIZE_5;
							break;
						case 6:
							finalLocationChip2 = PRIZE_6;
							break;
						case 7:
							finalLocationChip2 = PRIZE_7;
							break;
						case 8:
							finalLocationChip2 = PRIZE_8;
							break;
						}

						totalWinnings += finalLocationChip2;
					}
						cout << fixed << setprecision(2);
						cout << "Total winnings on " << chipNumber << " chips: $" << totalWinnings << endl;
						double averageWinningsPerChip = totalWinnings / chipNumber;
						cout << "Average winnings per chip: $" << averageWinningsPerChip << endl << endl;
				}
			}
				break;
		case 3: 
			cout << "GOODBYE!" << endl << endl;
			//system("pause");
			return 0;
			break;
		default:
			cout << "INVALID SELECTION.  Please enter 0, 1 or 2.\n\n";
			break;
		}
	} while (menuChoice >= 0 && menuChoice <0);
	//system("pause");
	return 0;
}
SakurasouBusters (732)
What part would you like us to debug?
What is your assignment?
rantiv (101)
I think my menuChoice while loop is wrong. it outpputs
my outoput
[Welcome to the plinko simulator!

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now:
INVALID SELECTIO]

Expected output starts with

Welcome to the plinko simulator!

MENU: Please select one of the following options:

0 - Quit the program
1 - Drop a single chip into one slot
2 - Drop multiple chips into one slot

Enter your selection now:
GOODBYE!
AbstractionAnon (6954)
One obvious problem is that at line 32, you say to enter 0 to quit. However, line 224 shows your exit code is option 3.

Line 25: srand(42) is always going to set the RNG to the same starting point. This may be useful for debugging.

Line 99-127, 184-214: These lines are identical. They should be placed in a function.
BTW, I absolutely detest nested switch statements.

Line 99-127, 184-214: You're using finalLocationChip2 for two different purposes. Location and prize amount. Not a good practice. It makes your program harder to debug. Better to use independent variables.

Last edited on
rantiv (101)
So how would i get my menu to come up again after an invalid selection? By the way, thanks so much!
AbstractionAnon (6954)
Line 233: Take a look at your while condition. How can that statement EVER be true? menuChoice can not be >= 0 and < 0 and the same time. Therefore, your loop will exit after the first iteration.

Since you already have a way to exit the loop at line 224 and a way to handle invalid selections at line 229, I would simply change the condition to while (true)

rantiv (101)
THANK YOU! Ok, now how do I get my winnings to output with the .00
I tried doing fixed set precision but it still prints 1000 instead of 1000.00
jlb (4973)
You might want to check out some of the std::ios manipulators like std::ios::fixed and std::ios::showpoint.

http://www.cplusplus.com/reference/ios/fixed/
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