private void bttnPlace_Click(object sender, EventArgs e)
{
try
{
int controlRow; // gets starting row for ship placement
int controlColumn; // gets starting column for ship placement
string direction; //gets direction for ship placement
string shipType; //gets shiptype for ship placement
bool shipValid; //keeps track of whether ship placement is valid
//LINQ to find which radio is checked
var checkedRadio = tableLayoutPanel2.Controls.OfType <RadioButton>()
.FirstOrDefault(r => r.Checked);
controlRow = tableLayoutPanel2.GetRow(checkedRadio); //gets radiobutton row
controlColumn = tableLayoutPanel2.GetColumn(checkedRadio); //gets radiobutton column
checkedRadio.Checked = false;
//Linq to find which direction is selected
checkedRadio = gbDirection.Controls.OfType <RadioButton>()
.FirstOrDefault(r => r.Checked);
direction = checkedRadio.Text;
checkedRadio.Checked = false;
//Linq to find out type of ship selected
checkedRadio = gbShip.Controls.OfType <RadioButton>()
.FirstOrDefault(r => r.Checked);
shipType = checkedRadio.Tag.ToString();
//sends user data to isShipPlaceValid() to see if ship placement is valid
shipValid = GameMechanics.PlacingShips(ref playerShips, controlColumn, controlRow, direction, shipType);
//if ship placement is valid sets ship placement in object list
if (shipValid == true)
{
foreach (Ship s in playerShips.Where(s => s.ShipType == shipType)) //LINQ to get right ship to set
{
s.IsPlaced = true;
}
checkedRadio.Enabled = false; //disables set ship radio button
checkedRadio.Checked = false; // unselects ship
}
else //if ships placement is not valid sends message to user
{
MessageBox.Show("Ship placement invalid.");
}
tableLayoutPanel2.Refresh();
}
catch (ArgumentNullException)//catch statement to catch unselected radio buttons
{
MessageBox.Show("Please select a ship location on the grid.");
}
catch (NullReferenceException)//catch statement to catch unselected radio buttons
{
MessageBox.Show("Please choose a ship or a direction for the ship.");
}
}
public static void SettingAIShips(ref List <Ship> computerShips)
{
//sets the ships for the computer in random places
//Direction Constants
const string UP = "Up";
const string DOWN = "Down";
const string LEFT = "Left";
const string RIGHT = "Right";
Random r = new Random();
bool shipValid = false;
int startingColumn;
int startingRow;
int directionNum;
string direction = UP;
foreach (Ship s in computerShips) //setting location for each ship
{
while (shipValid == false) // repeat until ship placement is valid
{
// getting new random numbers
startingColumn = r.Next(12);
startingRow = r.Next(12);
directionNum = r.Next(4);
//switch case to convert number to direction
switch (directionNum)
{
case 0:
direction = UP;
break;
case 1:
direction = LEFT;
break;
case 2:
direction = RIGHT;
break;
case 3:
direction = DOWN;
break;
}
//send to check if placement is valid
shipValid = GameMechanics.PlacingShips(ref computerShips, startingColumn, startingRow, direction, s.ShipType);
}
s.IsPlaced = true; // sets ship property to ship is placed
shipValid = false; // reseting shipValid
}
}
