/// <summary>
/// Hit detection between rock and the ship
/// </summary>
/// <param name="gr">graphics object to check the regions on</param>
private void ShipVsRock(Graphics gr)
{
PointF shipCenter = myShip.CenterPoint();
for (int i = 0; i < rockList.Count; i++)
{
PointF thisRock = rockList[i].Pos;
//if the rock is dangerous
if (rockList[i].isDangerous)
{
//check if the shapes are near each other
if (GetDistance(shipCenter, thisRock) <= (ShipModel.SHIPRAD / 2 + rockList[i].RockSize))
{
//intersect the regions
Region shipReg = myShip.GetRegion();
Region rockReg = rockList[i].GetRegion();
shipReg.Intersect(rockReg);
if (!shipReg.IsEmpty(gr))
{
//if the regions intersect set the death bool of the ship and the rock to true
myShip.IsMarkedForDeath = rockList[i].IsMarkedForDeath = true;
}
}
}
}
}