SECTION II: FREE RESPONSE

4. Part (a)

Position RandomPosition(const Environment & env)
// postcondition: A random position (row, col) with
// 				  0 <= row < env.NumRows()
// 				  0 <= col < env.NumCols() is returned
{
	RandGen randomVals;
	int row = randomVals.RandInt(env.NumRows());
	int col = randomVals.RandInt(env.NumCols());
	return Position(row, col);
}

Part (b)

bool Simulation::CreateFish (Environment & env)
// postcondition: If a random empty position in env is found
// 				  in five or fewer attempts, then a new fish
// 				  is added at that position and true is
// 				  returned; otherwise false is returned
{
	int try;
	Position pos;
	for (try = 1; try <= 5; try++)
	{
		pos = RandomPosition(env);
		if (env.IsEmpty(pos))
		{
			env.AddFish(pos);
			return true;
		}
	}
	return false;
}