// add a ship to gameboard
private Ship PlaceShip(int length, string type)
{
int bowX = rnd.Next(10);
int bowY = rnd.Next(10);
int direction = rnd.Next(1, 5);
bool validBow = board.FreeSpace(bowX, bowY);
int stern;
int sternX = -1;
int sternY = -1;
if (validBow == false)
{
while (validBow == false)
{
bowX = rnd.Next(10);
bowY = rnd.Next(10);
direction = rnd.Next(1, 5);
validBow = board.FreeSpace(bowX, bowY);
}
}
if (validBow == true)
{
switch (direction)
{
case 1: // stern is north of the bow
stern = (bowY - length + 1);
if (stern >= 0)
{
for (int i = stern; i <= bowY; i++)
{
if (board.FreeSpace(bowX, i) == false)
{
goto case 2;
}
else
{
sternX = bowX;
sternY = stern;
break;
}
}
break;
}
else
{
goto case 2;
}
case 2: // stern is east of the bow
stern = (bowX + length - 1);
if (stern <= 9)
{
for (int i = bowX; i <= stern; i++)
{
if (board.FreeSpace(i, bowY) == false)
{
goto case 3;
}
else
{
sternX = stern;
sternY = bowY;
break;
}
}
break;
}
else
{
goto case 3;
}
case 3: // stern is south of the bow
stern = (bowY + length - 1);
if (stern <= 9)
{
for (int i = bowY; i <= stern; i++)
{
if (board.FreeSpace(bowX, i) == false)
{
goto case 4;
}
else
{
sternX = bowX;
sternY = stern;
break;
}
}
break;
}
else
{
goto case 4;
}
case 4: // stern is west of the bow
stern = (bowX - length + 1);
if (stern >= 0)
{
for (int i = stern; stern <= bowX; i++)
{
if (board.FreeSpace(i, bowY) == false)
{
goto default;
}
else
{
sternX = stern;
sternY = bowY;
break;
}
}
break;
}
else
{
goto default;
}
default:
if (direction != 1)
{
goto case 1;
}
else
{
sternX = 0;
sternY = 0;
Console.WriteLine("bow position failed to find valid positioning");
break;
}
}
}
Ship temp = new Ship(length, bowX, bowY, sternX, sternY, type);
board.AddShipIcon(bowX, bowY, sternX, sternY, temp);
return(temp);
}
