// when we hit something, update state
public void ShotHit(Rectangle rect, bool sunk)
{
var coords = Calculation.CharCoordsToInt(rect.Uid);
int x = coords[0], y = coords[1];
this._state[x, y] = sunk ? State.Sunk : State.Hit;
// if we know that we just sunk a ship at (x,y), look at adjacent locations to see if we
// had to have sunk a given ship (i.e. if there's only one remaining ship that has a size
// less than the sunk length, that ship must have sunk.)
if (sunk)
{
var localLeft = x;
while (localLeft > 0 && (this._state[localLeft - 1, y] == State.Hit || this._state[localLeft - 1, y] == State.Sunk))
{
--localLeft;
}
var localRight = x;
while (localRight < GameSize - 1 && (this._state[localRight + 1, y] == State.Hit || this._state[localRight + 1, y] == State.Sunk))
{
++localRight;
}
var localAbove = y;
while (localAbove > 0 && (this._state[x, localAbove - 1] == State.Hit || this._state[x, localAbove - 1] == State.Sunk))
{
--localAbove;
}
var localBelow = y;
while (localBelow < GameSize - 1 && (this._state[x, localBelow + 1] == State.Hit || this._state[x, localBelow + 1] == State.Sunk))
{
++localBelow;
}
var sunkWidth = localRight - localLeft + 1;
var sunkHeight = localBelow - localAbove + 1;
if (sunkWidth > 1)
{
var numShips = 0;
foreach (var w in this._remainingShips)
{
if (w <= sunkWidth)
{
++numShips;
}
}
if (numShips == 1)
{
this._remainingShips.Remove(sunkWidth);
}
}
else if (sunkHeight > 1)
{
var numShips = 0;
foreach (var w in this._remainingShips)
{
if (w <= sunkHeight)
{
++numShips;
}
}
if (numShips == 1)
{
this._remainingShips.Remove(sunkHeight);
}
}
}
}
