public static float getAnglePredictPlayerPos(Enemy e, Player p)
{
Vector2 vect1 = p.Position - e.Position;
float a = p.Velocity.LengthSquared() - (15 * 15);
float b = 2 * (Vector2.Dot(p.Velocity, vect1));
float c = vect1.LengthSquared();
if ((b * b - 4 * a * c) > 0 && a != 0)
{
float t1 = (-b + (float)Math.Sqrt((double)(b * b - 4 * a * c))) / (2 * a);
float t2 = (-b + (float)Math.Sqrt((double)(b * b - 4 * a * c))) / (2 * a);
float goodtime;
if (t1 > 0 && t2 > 0)
{
if (t1 > t2)
goodtime = t2;
else
goodtime = t1;
}
else if (t1 > 0) { goodtime = t1; }
else { goodtime = t2; }
Vector2 predictPos = p.Position + p.Velocity * goodtime * -3;
return getAnglePointingAt(e.Position, predictPos);
}
else
{
return -1;
}
}
protected void HandleMessage(NetIncomingMessage msg)
{
int packetId = msg.ReadByte();
switch (packetId)
{
case 99: // server wants client ID!
SendMessage(this.ClientID);
break;
case 1: // player disconnected
this.GameController.removePlayer(msg.ReadString());
break;
case 5: // position and rotation of some player (maybe us)
svrID = msg.ReadString();
// not in list yet so we need to create a new player entity
if (!this.GameController.inPlayerList(svrID))
{
Player newP = new Player();
newP.Name = svrID;
this.GameController.addPlayer(newP);
}
// in list already so just update
else if (this.GameController.inPlayerList(svrID))
{
if (this.ClientID == svrID) // this is us!
{
// cool story bro!
}
this.GameController.getPlayer(svrID).setSvrPosRot(msg.ReadFloat(), msg.ReadFloat(), msg.ReadFloat());
}
break;
case 10: // projectile
int key = msg.ReadByte();
if (this.GameController.inProjectileList(key))
{
this.GameController.getProjectile(key).setSvrPosRot(msg.ReadFloat(), msg.ReadFloat(), msg.ReadFloat());
}
else
{
float f1, f2, f3;
f1 = msg.ReadFloat();
f2 = msg.ReadFloat();
f3 = msg.ReadFloat();
this.GameController.projectiles.Add(new Projectile(new Vector2(f1, f2), f3, key, this.ClientID));
}
break;
case 11: // enemy
int ekey = msg.ReadByte();
if (this.GameController.inEnemyList(ekey))
{
this.GameController.getEnemy(ekey).setSvrPosRot(msg.ReadFloat(), msg.ReadFloat(), msg.ReadFloat());
}
else
{
float f1, f2, f3;
f1 = msg.ReadFloat();
f2 = msg.ReadFloat();
f3 = msg.ReadFloat();
this.GameController.enemies.Add(new Enemy(new Vector2(f1, f2), ekey));
}
break;
case 15: // bullet collision
this.GameController.getPlayer(msg.ReadString()).getHit();
int tempID = msg.ReadByte();
if (this.GameController.inProjectileList(tempID))
this.GameController.getProjectile(tempID).Active = false;
break;
default:
// unknown packet id
break;
}
}
public void Start()
{
this.server.Start();
this.running = true;
double nextSendUpdates = NetTime.Now;
double now;
while (running)
{
NetIncomingMessage msg;
while ((msg = server.ReadMessage()) != null)
{
switch (msg.MessageType)
{
case NetIncomingMessageType.DiscoveryRequest:
// Respond to the discovery request.
server.SendDiscoveryResponse(null, msg.SenderEndpoint);
break;
case NetIncomingMessageType.VerboseDebugMessage:
case NetIncomingMessageType.DebugMessage:
case NetIncomingMessageType.WarningMessage:
case NetIncomingMessageType.ErrorMessage:
// Print the message.
// TODO log errors?
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.StatusChanged:
NetConnectionStatus status = (NetConnectionStatus)msg.ReadByte();
if (status == NetConnectionStatus.Connected)
{
// Console.WriteLine(NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier) + " connected!");
}
else if (status == NetConnectionStatus.Disconnected)
{
// closing client makes it timeout and after a few seconds sends this message?
Console.WriteLine(msg.SenderConnection.Tag.ToString() + " disconnected!");
disconnectEvent = true;
if (cloudGC.pList.TryGetValue(msg.SenderConnection.RemoteUniqueIdentifier, out val))
{
disconnectPlayer = val;
disconnectRID = msg.SenderConnection.RemoteUniqueIdentifier;
}
}
else if (status == NetConnectionStatus.Disconnecting)
{
// can't get this one to trigger just yet.
Console.WriteLine(NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier) + " disconnecting!");
}
break;
case NetIncomingMessageType.Data: // handle message from client
//Console.WriteLine(string.Format("got msg from: " + NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier)));
handleMessage(msg);
break;
}
}
now = NetTime.Now;
if (now > nextSendUpdates)
{
foreach (NetConnection connection in server.Connections)
{
// storing client id in Tag. If it's null, ask client to send it over.
// Also send client it's session id.
if (connection.Tag == null)
{
NetOutgoingMessage sendMsg = server.CreateMessage();
sendMsg.Write((byte)99);
server.SendMessage(sendMsg, connection, NetDeliveryMethod.ReliableUnordered);
}
else
{
// tell player of everyone's position including itself.
foreach (NetConnection player in server.Connections)
{
if (player.Tag != null) // have client id
{
p1 = cloudGC.getPlayer(player.Tag.ToString());
if (p1 != null) // player still connected
{
NetOutgoingMessage sendMsg = server.CreateMessage();
sendMsg.Write((byte)5); // packet id
sendMsg.Write(player.Tag.ToString()); // client id
sendMsg.Write(p1.Position.X);
sendMsg.Write(p1.Position.Y);
sendMsg.Write(p1.Rotation);
server.SendMessage(sendMsg, connection, NetDeliveryMethod.Unreliable);
}
}
}
// tell player of the bullets
foreach (Projectile proj in cloudGC.projectiles)
{
if (proj.Active)
{
NetOutgoingMessage sendMsg = server.CreateMessage();
sendMsg.Write((byte)10); // packet id
sendMsg.Write((byte)proj.ID);
sendMsg.Write(proj.Position.X);
sendMsg.Write(proj.Position.Y);
sendMsg.Write(proj.Rotation);
server.SendMessage(sendMsg, connection, NetDeliveryMethod.Unreliable);
}
}
// tell player of the enemies
if (cloudGC.enemyList.Count != 0)
{
foreach (Enemy enemy in cloudGC.enemyList)
{
NetOutgoingMessage sendMsg = server.CreateMessage();
sendMsg.Write((byte)11);
sendMsg.Write((byte)enemy.ID);
sendMsg.Write(enemy.Position.X);
sendMsg.Write(enemy.Position.Y);
sendMsg.Write(enemy.Rotation);
server.SendMessage(sendMsg, connection, NetDeliveryMethod.Unreliable);
}
}
// tell player of collisions
if (cloudGC.collisionList.Count != 0)
{
foreach (Collision c in cloudGC.collisionList)
{
NetOutgoingMessage sendMsg = server.CreateMessage();
sendMsg.Write((byte)15); // packet id
sendMsg.Write(c.player.Name);
sendMsg.Write(c.projectile.ID);
server.SendMessage(sendMsg, connection, NetDeliveryMethod.Unreliable);
}
}
// inform player someone disconnected
if (disconnectEvent)
{
NetOutgoingMessage sendMsg = server.CreateMessage();
sendMsg.Write((byte)1); // packet id
sendMsg.Write(disconnectPlayer); // client id
server.SendMessage(sendMsg, connection, NetDeliveryMethod.Unreliable);
}
}
}
cloudGC.clearCollisionsList();
if (disconnectEvent)
{
disconnectEvent = false;
cloudGC.removePlayer(disconnectPlayer, disconnectRID);
}
nextSendUpdates += (1.0 / messagesPerSecond);
}
Thread.Sleep(1);
}
this.server.Shutdown("Server stopping.");
}
public void createBullet(Player player)
{
if (player.canShoot())
{
projectiles.Add(new Projectile(player.Position, player.Rotation, bulletkey, player.Name));
player.firecounter = player.FireRate;
bulletkey++;
}
}
public void addPlayer(String name, long remoteID)
{
Player newP = new Player();
newP.Name = name;
playerList.Add(newP);
pList.Add(remoteID, name);
}
public Collision(Player p, Projectile proj)
: this()
{
this.player = p;
this.projectile = proj;
}
public void addPlayer(Player p)
{
playerList.Add(p);
}