infinite loop in movement function - c++

Question

I have this program that is supposed to simulate fish and sharks moving around on a grid of any given size, but I'm running into an infinite loop in my fish's move function.
the program isn't consistent on when the looping occurs because when I run it sometimes it gets stuck on turn 0, but it could also happen on turn 3; this is possible because of my randomness attached to it
here's my fish_class.cpp where the problem occurs, I've marked where the infinite loop happens. hope anyone could help.
#include "fish_class.h"
#include "world.h"
#include <vector>
#include <stdlib.h>
#include <time.h>
using namespace std;
void FishT::SetFishBreed(int fishBreedRate)
{
fishBreed = fishBreedRate;
//return fishBreed;
}
int FishT::GetFishBreed()
{
return fishBreed;
}
int FishT::IncreaseMoves()
{
if (moveCount == fishBreed) //just incase for unlimited breeding
{
moveCount = 0;
}
moveCount++;
return moveCount;
}
void FishT::Move(WorldT& world)
{
bool HasMoved = false;
srand (time (NULL)); //initialize random seed
//generate a number from 1 to 4 (north, south, east, west) to move to on the world grid
int PlaceToMove = static_cast<int>(rand() % 4 + 1);
while (HasMoved == false)
{
if (PlaceToMove == 1 and world.IsInBoundry(x, y - 1) and world.IsEmpty(x, y - 1)) //checking if north is empty and in bounds
{
//cout << "moving fish north" << endl;
//update fish's position
world.SetEmpty(x, y);
world.SetFishPlacement(x, y - 1);
y = y - 1;
HasMoved = true;
Turn(world); //increase our move tracker
}
else if (PlaceToMove == 2 and world.IsInBoundry(x, y + 1) and world.IsEmpty(x, y + 1)) //checking if south is empty and in bounds
{
//cout << "moving fish south" << endl;
//update fish's position
world.SetEmpty(x, y);
world.SetFishPlacement(x, y + 1);
y = y + 1;
HasMoved = true;
Turn(world);
}
else if (PlaceToMove == 3 and world.IsInBoundry(x + 1, y) and world.IsEmpty(x + 1, y)) //checking if east is empty
{
//cout << "moving fish east" << endl;
//update fish's position
world.SetEmpty(x, y);
world.SetFishPlacement(x + 1, y);
x = x + 1;
HasMoved = true;
Turn(world);
}
else if (PlaceToMove == 4 and world.IsInBoundry(x - 1, y) and world.IsEmpty(x - 1, y)) //checking if west is empty
{
//cout << "moving fish west" << endl;
//update fish's position
world.SetEmpty(x, y);
world.SetFishPlacement(x - 1, y);
x = x - 1;
HasMoved = true;
Turn(world);
}
else
{
// *** this is where the loop problem occurs ***
//cout << "updating fish's placetomove" << endl;
PlaceToMove = PlaceToMove % 4 + 1;
}
}
if (PlaceToMove == 1 and moveCount == fishBreed)
{
//cout << "in reproduce north" << endl;
//cout << "fish breed is: " << GetFishBreed() << endl;
//cout << "move count is: " << moveCount << endl;
Reproduce(x, y + 1, world);
}
else if (PlaceToMove == 2 and moveCount == fishBreed)
{
//cout << "in reproduce south" << endl;
//cout << "fish breed is: " << GetFishBreed() << endl;
//cout << "move count is: " << moveCount << endl;
Reproduce(x, y - 1, world);
}
else if (PlaceToMove == 3 and moveCount == fishBreed)
{
//cout << "in reproduce east" << endl;
//cout << "fish breed is: " << GetFishBreed() << endl;
//cout << "move count is: " << moveCount << endl;
Reproduce(x - 1, y, world);
}
else if (PlaceToMove == 4 and moveCount == fishBreed)
{
//cout << "in reproduce west" << endl;
//cout << "fish breed is: " << GetFishBreed() << endl;
//cout << "move count is: " << moveCount << endl;
Reproduce(x + 1, y, world);
}
}
void FishT::Reproduce(int x, int y, WorldT& world)
{
//cout << "in reproduce function" << endl;
world.SetFishPlacement(x, y);
world.AddNewFish(x, y);
}
void FishT::Turn(WorldT& world)
{
IncreaseMoves(); //keep track of move turns
}
void FishT::Die(WorldT& world)
{
world.FishDie(x, y);
}