/// <summary>
/// udp数据包解析函数
/// </summary>
/// <param name="buf">字节数组</param>
private void Parse(byte[] buf)
{
MsgType msgType = MsgType.None;
Msg msg = null;
string str = Encoding.UTF32.GetString(buf);
string[] strs = str.Split('|');
msgType = (MsgType)Convert.ToInt32(strs[0]);
//通过不同的消息类型，对消息进行解析
switch (msgType)
{
case MsgType.TankNew:
msg = new TankNewMsg(ctrl);
msg.Parse(buf);
break;
case MsgType.TankMove:
msg = new TankMoveMsg(ctrl);
msg.Parse(buf);
break;
case MsgType.BulletNew:
msg = new BulletNewMsg(ctrl);
msg.Parse(buf);
break;
}
}
private void TankMove(Tank tank)
{
dirOld = tank.Dir;
if (tank.Dir != Direction.Stop)
{
tank.DirOld = tank.Dir;
}
if (dirUp)
{
tank.Dir = Direction.Up;
tank.Move();
}
if (dirDown)
{
tank.Dir = Direction.Down;
tank.Move();
}
if (dirLeft)
{
tank.Dir = Direction.Left;
tank.Move();
}
if (dirRight)
{
tank.Dir = Direction.Right;
tank.Move();
}
if (!dirUp && !dirDown && !dirLeft && !dirRight)
{
tank.Dir = Direction.Stop;
}
//与边界的碰撞检测
if (tank.X < 0 || tank.Y < 0 || tank.X > gameWidth - Tank.size.Width || tank.Y > gameHeight - Tank.size.Height)
{
myTank.X = myTank.XOld;
myTank.Y = myTank.YOld;
tank.Dir = Direction.Stop;
}
//与坦克的碰撞检测
for (int i = 0; i < tanks.Count; i++)
{
if (myTank != null && CollisionDetection(tanks[i].GetRectangle(), myTank.GetRectangle()))
{
myTank.X = myTank.XOld;
myTank.Y = myTank.YOld;
tank.Dir = Direction.Stop;
}
}
//与地图物块的碰撞检测
int tmpX = myTank.X / tis.Width;
int tmpY = myTank.Y / tis.Height;
for (int i = tmpX - 1; i < tmpX + 3; i++)
{
for (int j = tmpY - 1; j < tmpY + 3; j++)
{
if (i < 0 || j < 0 || i >= mapWidth || j >= mapHeight)
{
continue;
}
if (map[i, j] != null)
{
if (CollisionDetection(map[i, j].GetRectangle(), myTank.GetRectangle()))
{
myTank.X = myTank.XOld;
myTank.Y = myTank.YOld;
tank.Dir = Direction.Stop;
}
}
}
}
//改变方向时发包
if (nc != null && tank.Dir != dirOld)
{
TankMoveMsg msg = new TankMoveMsg(tank.Name, tank.X, tank.Y, tank.Dir);
nc.Send(msg);
}
}