//main program, starts here
static void Main(string[] args)
{
bool win = false;
bool continueExecution = true;
int numberOfWinnings = 0;
simulation sim = new simulation();
randomNumberGen rg = new randomNumberGen();
//get the consoleInterface, display welcome screen
consoleInterface ic = consoleInterface.getInterface();
ic.displayWelcome();
//conitnue while user wants to
while (continueExecution == true)
{
numberOfWinnings = 0;
//start simulation of not switching doors
ic.startWithoutSwitching();
for (int i = 0; i < 10000; i++)
{
int seed = rg.getNumber(100, i + Environment.TickCount);
win = sim.runSimWithoutSwitching(seed);
if (win == true)
{
numberOfWinnings += 1;
}
}
//calculate ratio which should be around 1/3
double withoutSwitchingRatio = numberOfWinnings / 10000.0;
//Displays results and resets numberOfWinnings variable
ic.resultsWithoutSwitching(numberOfWinnings, withoutSwitchingRatio);
numberOfWinnings = 0;
//start simulation with switching
ic.startWithSiwtching();
for (int i = 0; i < 10000; i++)
{
int seed = rg.getNumber(100, i + Environment.TickCount);
win = sim.runWithSwitching(seed);
if (win == true)
{
numberOfWinnings += 1;
}
}
//calculate ratio which should be around 2/3
double withSwitchingRatio = numberOfWinnings / 10000.0;
//Displays results
ic.resultsWithSwitching(numberOfWinnings, withSwitchingRatio);
continueExecution = ic.compareRatio(withoutSwitchingRatio, withSwitchingRatio);
}
}
public bool runSimWithoutSwitching(int s)
{
//boolean to see if you won.
bool win = false;
randomNumberGen randGen = new randomNumberGen();
//first pick the winning door, and user choice
int winningDoor = randGen.getNumber(4, s);
int userChoice = randGen.getNumber(4, s + s);
if (winningDoor == userChoice)
{
win = true;
}
return(win);
}
public bool runWithSwitching(int s)
{
bool win = false;
randomNumberGen randGen = new randomNumberGen();
//pick winning door
int winningDoor = randGen.getNumber(4, s);
int userChoice = randGen.getNumber(4, s + s);
int doorShown = 0;
List <int> losingDoors = new List <int>();
//place losing doors in array, so Monte Hall will know them
for (int i = 1; i < 4; i++)
{
if (i != winningDoor)
{
losingDoors.Add(i);
}
}
//Monte Hall displays a losing door
if (userChoice == losingDoors[0])
{
//door shown = losingDoors[1]
doorShown = losingDoors[1];
}
else
{
//door shown = losingDoor[0]
doorShown = losingDoors[0];
}
//switch door to door that was not shown
if (doorShown == 2 && userChoice == 1)
{
userChoice = 3;
}
else if (doorShown == 2 && userChoice == 3)
{
userChoice = 1;
}
else if (doorShown == 1 && userChoice == 2)
{
userChoice = 3;
}
else if (doorShown == 1 && userChoice == 3)
{
userChoice = 2;
}
else if (doorShown == 3 && userChoice == 1)
{
userChoice = 2;
}
else if (doorShown == 3 && userChoice == 2)
{
userChoice = 1;
}
//see if user won
if (userChoice == winningDoor)
{
win = true;
}
return(win);
}
