/* Starshatter OpenSource Distribution Copyright (c) 1997-2004, Destroyer Studios LLC. All Rights Reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name "Destroyer Studios" nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 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SUBSYSTEM: Stars.exe FILE: NetGame.cpp AUTHOR: John DiCamillo OVERVIEW ======== Network Game Manager and Player classes */ #include "MemDebug.h" #include "NetPacket.h" #include "NetLink.h" #include "NetMsg.h" #include "Ship.h" #include "Game.h" // +--------------------------------------------------------------------+ const int PING_SIZE = 8; const int SHIP_LOC_SIZE = 36; const int JOIN_REQ_SIZE = 116; const int JOIN_ANN_SIZE = 116; const int QUIT_ANN_SIZE = 8; // +--------------------------------------------------------------------+ NetPacket::NetPacket(NetMsg* g) : msg(g) { } NetPacket::NetPacket(DWORD netid, BYTE type) { int len = 0; char buf[256]; ZeroMemory(buf, 256); switch (type) { case NET_PING: len = PING_SIZE; break; case NET_PONG: len = PING_SIZE; break; case NET_OBJ_LOC: len = SHIP_LOC_SIZE; break; case NET_JOIN_REQUEST: len = JOIN_REQ_SIZE; break; case NET_JOIN_ANNOUNCE: len = JOIN_ANN_SIZE; break; case NET_QUIT_ANNOUNCE: len = QUIT_ANN_SIZE; break; default: len = JOIN_REQ_SIZE; break; } msg = new(__FILE__,__LINE__) NetMsg(netid, type, buf, len); } NetPacket::~NetPacket() { delete msg; } bool NetPacket::Send(NetLink& link) { bool sent = false; if (msg) sent = link.SendMessage(msg); msg = 0; return sent; } // +--------------------------------------------------------------------+ DWORD NetPacket::NetID() const { if (msg) return msg->NetID(); return 0; } BYTE NetPacket::Type() const { if (msg) return msg->Type(); return 0; } // +--------------------------------------------------------------------+ DWORD NetPacket::GetPingSequence() { if (msg && msg->Length() >= PING_SIZE) { DWORD* data = (DWORD*) (msg->Data()+4); return *data; } return 0; } void NetPacket::SetPingSequence(DWORD seq) { if (msg && msg->Length() >= PING_SIZE) { DWORD* data = (DWORD*) (msg->Data()+4); *data = seq; } } // +--------------------------------------------------------------------+ DWORD NetPacket::GetNetID() { if (msg && msg->Length() >= PING_SIZE) { DWORD* data = (DWORD*) (msg->Data()+4); return *data; } return 0; } void NetPacket::SetNetID(DWORD id) { if (msg && msg->Length() >= PING_SIZE) { DWORD* data = (DWORD*) (msg->Data()+4); *data = id; } } // +--------------------------------------------------------------------+ Point NetPacket::GetShipLocation() { if (msg && msg->Length() >= SHIP_LOC_SIZE) { long* data = (long*) (msg->Data()+8); long x = *(data + 0); long y = *(data + 1); long z = *(data + 2); return Point(x/100.0, y/100.0, z/100.0); } return Point(); } void NetPacket::SetShipLocation(const Point& loc) { if (msg && msg->Length() >= SHIP_LOC_SIZE) { long x = (long) (loc.x * 100); long y = (long) (loc.y * 100); long z = (long) (loc.z * 100); long* data = (long*) (msg->Data()+8); *(data + 0) = x; *(data + 1) = y; *(data + 2) = z; } } // +--------------------------------------------------------------------+ Point NetPacket::GetShipVelocity() { if (msg && msg->Length() >= SHIP_LOC_SIZE) { short* data = (short*) (msg->Data()+20); short dx = *(data + 0); short dy = *(data + 1); short dz = *(data + 2); return Point(dx, dy, dz); } return Point(); } void NetPacket::SetShipVelocity(const Point& vel) { if (msg && msg->Length() >= SHIP_LOC_SIZE) { short* data = (short*) (msg->Data()+20); *(data + 0) = (short) vel.x; *(data + 1) = (short) vel.y; *(data + 2) = (short) vel.z; } } // +--------------------------------------------------------------------+ Point NetPacket::GetShipOrientation() { if (msg && msg->Length() >= SHIP_LOC_SIZE) { short* data = (short*) (msg->Data()+26); short r = *(data + 0); short p = *(data + 1); short y = *(data + 2); return Point(2*PI*r/32767, 2*PI*p/32767, 2*PI*y/32767); } return Point(); } void NetPacket::SetShipOrientation(const Point& rpy) { if (msg && msg->Length() >= SHIP_LOC_SIZE) { short* data = (short*) (msg->Data()+26); *(data + 0) = (short) (32767*rpy.x/(2*PI)); *(data + 1) = (short) (32767*rpy.y/(2*PI)); *(data + 2) = (short) (32767*rpy.z/(2*PI)); } } // +--------------------------------------------------------------------+ double NetPacket::GetThrottle() { if (msg && msg->Length() >= SHIP_LOC_SIZE) { BYTE* data = (BYTE*) msg->Data()+32; return (double) *data; } return 0; } void NetPacket::SetThrottle(double t) { if (msg && msg->Length() >= SHIP_LOC_SIZE) { BYTE* data = (BYTE*) msg->Data()+32; *data = (BYTE) t; } } // +--------------------------------------------------------------------+ bool NetPacket::GetTrigger(int i) { if (i >= 0 && i < 8 && msg && msg->Length() >= SHIP_LOC_SIZE) { BYTE* data = (BYTE*) msg->Data()+33; BYTE select = 1 << i; return (*data & select)?true:false; } return false; } void NetPacket::SetTrigger(int i, bool trigger) { if (i >= 0 && i < 8 && msg && msg->Length() >= SHIP_LOC_SIZE) { BYTE* data = (BYTE*) msg->Data()+33; BYTE select = 1 << i; if (trigger) *data = *data | select; else *data = *data & ~select; } } // +--------------------------------------------------------------------+ const char* NetPacket::GetName() { if (msg && msg->Length() >= JOIN_REQ_SIZE) { BYTE* data = (BYTE*) msg->Data()+20; return (const char*) data; } return 0; } void NetPacket::SetName(const char* name) { if (msg && msg->Length() >= JOIN_REQ_SIZE) { BYTE* data = (BYTE*) msg->Data()+20; strncpy((char*) data, name, 32); } } // +--------------------------------------------------------------------+ const char* NetPacket::GetDesign() { if (msg && msg->Length() >= JOIN_REQ_SIZE) { BYTE* data = (BYTE*) msg->Data()+52; return (const char*) data; } return 0; } void NetPacket::SetDesign(const char* design) { if (msg && msg->Length() >= JOIN_REQ_SIZE) { BYTE* data = (BYTE*) msg->Data()+52; strncpy((char*) data, design, 32); } } // +--------------------------------------------------------------------+ const char* NetPacket::GetRegion() { if (msg && msg->Length() >= JOIN_REQ_SIZE) { BYTE* data = (BYTE*) msg->Data()+84; return (const char*) data; } return 0; } void NetPacket::SetRegion(const char* rgn_name) { if (msg && msg->Length() >= JOIN_REQ_SIZE) { BYTE* data = (BYTE*) msg->Data()+84; strncpy((char*) data, rgn_name, 32); } } // +--------------------------------------------------------------------+