1 | /*! |
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2 | * @file entity_manager.h |
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3 | * Manages creation and destruction of entities |
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4 | */ |
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5 | |
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6 | #ifndef _NETWORK_GAME_MANGER |
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7 | #define _NETWORK_GAME_MANAGER |
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8 | |
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9 | /* include this file, it contains some default definitions */ |
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10 | #include "netdefs.h" |
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11 | |
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12 | /* include base_object.h since all classes are derived from this one */ |
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13 | #include "synchronizeable.h" |
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14 | |
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15 | |
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16 | class TiXmlElement; |
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17 | class PNode; |
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18 | |
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19 | /** |
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20 | * protocol definition |
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21 | * |
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22 | * CREATE_ENTITY: >> CLASS_ID, UNIQUE_ID, OWNER |
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23 | * REMOVE_ENTITY: >> UNIQUE_ID |
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24 | * |
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25 | * CREATE_ENTITY_LIST: >> NUMBER, [CLASS_ID, UNIQUE_ID, OWNER][0..NUMBER] |
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26 | * REMOVE_ENTITY_LIST: >> NUMBER, [UNIQUE_ID][0..NUMBER] |
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27 | * |
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28 | * REQUEST_CREATE: >> CLASS_ID |
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29 | * << [Sync Info] |
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30 | * REQUEST_REMOVE: >> UNIQUE_ID |
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31 | * << [Sync Info] |
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32 | * |
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33 | * //REQUEST_CREATE_LIST: NUMBER, [CLASS_ID][0..NUMBER] |
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34 | * //REQUEST_CREATE_LIST: NUMBER, [UNIQUE_ID][0..NUMBER] |
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35 | * |
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36 | * REQUEST_ENTITY_LIST: //request the whole world :D |
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37 | * REQUEST_SYNC: >> UNIQUE_ID |
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38 | * << [Sync Info] |
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39 | * //REQUEST_SYNC_LIST: NUMBER, [UNIQUE_ID][0..NUMBER] |
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40 | * |
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41 | * YOU_ARE_ENTITY: >> UNIQUE_ID |
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42 | * |
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43 | * REQUEST_PNODE_PATH >> UNIQUE_ID_START UNIQUE_ID_STOP |
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44 | * << UNIQUE_ID_1 UNIQUE_ID_2 UNIQUE_ID_3 ... UNIQUE_ID_N |
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45 | * |
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46 | * SEND_PNODE_PATH >> UNIQUE_ID_START UNIQUE_ID_STOP NUMBER [UNIQUE_ID][0..NUMBER] |
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47 | */ |
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48 | |
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49 | typedef enum NetworkGameManagerProtocol { |
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50 | NET_CREATE_ENTITY = 0, |
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51 | NET_REMOVE_ENTITY, |
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52 | NET_CREATE_ENTITY_LIST, |
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53 | NET_REMOVE_ENTITY_LIST, |
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54 | NET_REQUEST_CREATE, |
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55 | NET_REQUEST_REMOVE, |
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56 | NET_REQUEST_SYNC, |
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57 | NET_YOU_ARE_ENTITY, |
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58 | NET_REQUEST_ENTITY_LIST, |
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59 | NET_REQUEST_PNODE_PATH, |
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60 | NET_SEND_PNODE_PATH, |
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61 | |
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62 | NET_NUMBER |
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63 | }; |
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64 | |
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65 | struct clientBuffer |
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66 | { |
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67 | int length; |
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68 | int maxLength; |
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69 | byte * buffer; |
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70 | }; |
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71 | |
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72 | /*! |
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73 | * a class that can create and remove entities |
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74 | */ |
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75 | class NetworkGameManager: public Synchronizeable |
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76 | { |
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77 | public: |
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78 | virtual ~NetworkGameManager(); |
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79 | |
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80 | static NetworkGameManager* NetworkGameManager::getInstance() |
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81 | { if (!NetworkGameManager::singletonRef) NetworkGameManager::singletonRef = new NetworkGameManager(); return NetworkGameManager::singletonRef; } |
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82 | |
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83 | virtual int writeBytes(const byte* data, int length, int sender); |
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84 | virtual int readBytes(byte* data, int maxLength, int * reciever); |
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85 | virtual void writeDebug() const; |
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86 | virtual void readDebug() const; |
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87 | |
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88 | int createEntity( ClassID classID, int owner = 0 ); |
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89 | BaseObject* createEntity(const TiXmlElement* element); |
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90 | void removeEntity( int uniqueID ); |
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91 | void sendYouAre( int uniqueID, int userID ); |
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92 | |
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93 | void sync(int uniqueID, int owner); |
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94 | |
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95 | void sendEntityList(int userID); |
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96 | |
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97 | bool signalNewPlayer(int userId); |
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98 | bool signalLeftPlayer(int userID); |
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99 | |
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100 | |
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101 | private: |
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102 | NetworkGameManager(); |
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103 | |
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104 | |
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105 | /* some network signal handlers */ |
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106 | bool handleRequestCreate( int& i, const byte* data, int length, int sender ); |
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107 | bool handleRequestRemove( int& i, const byte* data, int length, int sender ); |
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108 | bool handleCreateEntity( int& i, const byte* data, int length, int sender ); |
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109 | bool handleRemoveEntity( int& i, const byte* data, int length, int sender ); |
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110 | bool handleCreateEntityList( int& i, const byte* data, int length, int sender ); |
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111 | bool handleRemoveEntityList( int& i, const byte* data, int length, int sender ); |
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112 | bool handleYouAreEntity( int& i, const byte* data, int length, int sender ); |
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113 | bool handleRequestSync( int& i, const byte* data, int length, int sender ); |
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114 | bool handleRequestPNodePath(int& i, const byte* data, int length, int sender); |
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115 | bool handleSendPNodePath(int& i, const byte* data, int length, int sender); |
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116 | |
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117 | |
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118 | /* some network handlers helper functions */ |
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119 | void requestCreateEntity(ClassID classID); |
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120 | int executeCreateEntity(ClassID classID, int uniqueID = 0, int owner = 0); |
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121 | BaseObject* doCreateEntity(ClassID classID, int uniqueID, int owner); |
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122 | |
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123 | void requestRemoveEntity(int uniqueID); |
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124 | void executeRemoveEntity(int uniqueID); |
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125 | void doRemoveEntity(int uniqueID); |
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126 | |
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127 | void executeRequestSync( int uniqueID, int user ); |
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128 | void doRequestSync(int uniqueID, int userID); |
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129 | |
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130 | void doYouAre( int uniqueID ); |
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131 | |
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132 | void requestPNodePath(const PNode* node1, const PNode* node2); |
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133 | void executeRequestPNodePath(const PNode* node2, const PNode* node2); |
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134 | void doRequestPNodePath(const PNode* node1, const PNode* node2); |
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135 | |
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136 | bool canCreateEntity(ClassID classID); |
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137 | |
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138 | void resizeBufferVector(int n); |
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139 | |
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140 | bool writeToClientBuffer( clientBuffer &cb, byte*data, int length ); |
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141 | bool writeToClientBuffer( clientBuffer &cb, byte b ); |
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142 | bool writeToClientBuffer( clientBuffer &cb, int i ); |
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143 | bool readFromClientBuffer( clientBuffer &cb, byte*data, int length ); |
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144 | |
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145 | |
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146 | private: |
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147 | std::vector<clientBuffer> outBuffer; |
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148 | //clientBuffer allOutBuffer; |
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149 | static NetworkGameManager* singletonRef; |
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150 | bool hasRequestedWorld; |
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151 | }; |
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152 | |
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153 | #endif /*_ENTITY_MANGER*/ |
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