forest-net
an overlay networks for large-scale virtual worlds
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Avatar.h
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1 
9 #ifndef AVATAR_H
10 #define AVATAR_H
11 
12 #include <set>
13 #include <list>
14 #include <bitset>
15 #include "Forest.h"
16 #include "Packet.h"
17 #include "CtlPkt.h"
18 #include "NetBuffer.h"
19 #include "PacketStore.h"
20 #include "HashSet.h"
21 
22 namespace forest {
23 
36 class Avatar {
37 public:
38  Avatar(ipa_t, comt_t, comt_t);
39  ~Avatar();
40 
41  bool init(ipa_t, string&, string&, char*);
42  void run(uint32_t);
43  const static int STATUS_REPORT = 1;
44 private:
45  const static int UPDATE_PERIOD = 50;
46  const static int LISTEN_PORT = 30130;
47  const static int NUM_ITEMS = 10;
48  const static int GRID = 10000;
49  const static int MAXNEAR = 1000;
50  // speeds below are the amount avatar moves during an update period
51  const static int SLOW =100;
52  const static int MEDIUM=250;
53  const static int FAST =600;
54  const static int STOPPED = 0;
55 
56  // network parameters
57  fAdr_t myAdr;
58  ipa_t myIp;
59  fAdr_t rtrAdr;
60  ipa_t rtrIp;
61  ipp_t rtrPort;
62  fAdr_t ccAdr;
63  int sock;
64  ipp_t listenPort;
65  int listenSock;
66  int connSock;
67  uint64_t nonce;
68 
69  // comtrees
70  comt_t comt;
71  comt_t firstComt;
72  comt_t lastComt;
73 
74  // avatar properties
75  int x;
76  int y;
77  double direction;
78  double deltaDir;
79  double speed;
80 
81  // data structures defining walls in virtual world
82  const static int MAX_VIS=20;
83  int worldSize;
84  char* walls;
85  set<int> *myVisSet;
86 
88  // data for managing signalling interactions with ComtCtl
89  const static uint32_t SWITCH_TIMEOUT = 500000;
90  const static bool RETRY = true;
91  enum STATE {
92  IDLE, JOINING, LEAVING
93  };
94  STATE switchState;
95  uint32_t switchTimer;
96  int switchCnt;
97  comt_t nextComt;
98  int seqNum;
99  long long subSeqNum;
100 
101  // data structures for multicast subscriptions and other avatars
102  set<int> *mySubs;
103  HashSet *visibleAvatars;
104  HashSet *nearAvatars;
105  int numVisible;
107  int numNear;
108 
109  PacketStore *ps;
110 
111  // private helper methods
112  int groupNum(int, int);
113  bool login(ipa_t,string,string);
114  bool setupWalls(const char*);
115  bool separated(int, int);
116  void updateVisSet();
117  void computeVisSet(int, set<int>&);
118  bool isVis(int, int);
119  bool linesIntersect( double, double, double, double,
120  double, double, double, double);
121 
122  void updateStatus(uint32_t);
123  void updateNearby(int);
124  void updateSubs();
125  void sendStatus(int);
126 
127  void startComtSwitch(comt_t, uint32_t);
128  bool completeComtSwitch(pktx, uint32_t);
129  void send2comtCtl(CtlPkt::CpType,bool=false);
130  comt_t check4command();
131  void forwardReport(uint32_t,int,int=0);
132 
133  void subscribeAll();
134  void unsubscribeAll();
135  void subscribe(list<int>&);
136  void unsubscribe(list<int>&);
137 
138  bool connect();
139  bool disconnect();
140  void send(int);
141  int receive();
142 };
143 
144 } // ends namespace
145 
146 #endif