qcsrc/lib/replicate.qh

   1 #pragma once
   2
   3 #ifdef SVQC
   4 // copies a string to a tempstring (so one can strunzone it)
   5 string strcat1(string s) = #115; // FRIK_FILE
   6 #endif
   7
   8 #if defined(CSQC)
   9 #define REPLICATE_FIELD(type, name) type name
  10 #elif defined(SVQC)
  11 #define REPLICATE_FIELD(type, name) .type name
  12 #endif
  13
  14 #ifdef GAMEQC
  15
  16     /**
  17      * Replicate a client cvar into a server field
  18      *
  19      * @param fld   The field to replicate into
  20      * @param type  The field type
  21      * @param cvar  The cvar name
  22      */
  23         #define REPLICATE(...) EVAL_REPLICATE(OVERLOAD(REPLICATE, __VA_ARGS__))
  24         #define EVAL_REPLICATE(...) __VA_ARGS__
  25
  26         #if defined(SVQC)
  27         ACCUMULATE void ReplicateVars(entity this, entity store, string thisname, int i) {}
  28         #elif defined(CSQC)
  29         ACCUMULATE void ReplicateVars(int mode) {}
  30         #endif
  31
  32         #define REPLICATE_3(fld, type, var) REPLICATE_4(fld, type, var, )
  33         #define REPLICATE_4(fld, type, var, func) REPLICATE_##type(fld, var, func)
  34         #if defined(SVQC)
  35                 #define REPLICATE_string(fld, var, func) \
  36                         REPLICATE_7(fld, string, var, , \
  37                 { strcpy(field, it); }, \
  38                 { strfree(field); }, \
  39                 { \
  40                         /* also initialize to the default value of func when requesting cvars */ \
  41                         string s = func(this, strcat1(field)); \
  42                         if (s != field) \
  43                         { \
  44                                 strcpy(field, s); \
  45                         } \
  46                 })
  47                 #define REPLICATE_float(fld, var, func) REPLICATE_7(fld, float, var, func,  { field = stof(it); },          , )
  48                 #define REPLICATE_bool(fld, var, func) REPLICATE_7(fld, bool, var, func,   { field = boolean(stoi(it)); }, , )
  49                 #define REPLICATE_int(fld, var, func) REPLICATE_7(fld, int, var, func,    { field = stoi(it); },          , )
  50
  51                 #define REPLICATE_7(fld, type, var, func, create, destroy, after) \
  52                         void ReplicateVars(entity this, entity store, string thisname, int i) \
  53                         { \
  54                                 type field = store.fld; \
  55                                 if (i < 0) { destroy } \
  56                                 else \
  57                                 { \
  58                                         string it = func(argv(i + 1)); \
  59                                         bool current = thisname == var; \
  60                                         if (i > 0) \
  61                                         { \
  62                                                 if (current) { create } \
  63                                         } \
  64                                         else \
  65                                         { \
  66                                                 stuffcmd(this, strcat("cl_cmd sendcvar ", var, "\n")); \
  67                                         } \
  68                                         if (current) { after } \
  69                                 } \
  70                                 store.fld = field; \
  71                         }
  72         #elif defined(CSQC)
  73                 noref float ReplicateVars_time;
  74                 #define ReplicateVars_NOT_SENDING() (time > ReplicateVars_time)
  75                 #define ReplicateVars_DELAY(t) ReplicateVars_time = time + t
  76                 #define ReplicateVars_DELAY_1FRAME() ReplicateVars_time = time
  77                 #define REPLICATE_string(fld, var, func) REPLICATE_7(fld, float, var, func, (fld != cvar_string(var)), { strcpy(fld, cvar_string(var)); }, { strfree(fld); })
  78                 #define REPLICATE_float(fld, var, func) REPLICATE_7(fld, float, var, func, (fld != cvar(var)), { fld = cvar(var); }, )
  79                 #define REPLICATE_bool(fld, var, func) REPLICATE_7(fld, bool, var, func, (fld != cvar(var)), { fld = cvar(var); }, )
  80                 #define REPLICATE_int(fld, var, func) REPLICATE_7(fld, int, var, func, (fld != cvar(var)), { fld = cvar(var); }, )
  81
  82                 void ReplicateVars_Destroy() { ReplicateVars(1); }
  83                 void ReplicateVars_Send_All() { ReplicateVars(-1); }
  84                 void ReplicateVars_Check()
  85                 {
  86                         // if a cvar has changed send it and check cvars again next frame
  87                         ReplicateVars(0);
  88                         if (ReplicateVars_NOT_SENDING()) // if no cvar has changed
  89                                 ReplicateVars_DELAY(0.8 + random() * 0.4); // check cvars after a while
  90                 }
  91                 void ReplicateVars_Send(string cvarname) { localcmd(strcat("cl_cmd sendcvar ", cvarname, "\n")); }
  92
  93                 #define REPLICATE_7(fld, type, var, func, check, update, destroy) \
  94                         void ReplicateVars(int mode) \
  95                         { \
  96                                 if (mode == 1) { destroy } \
  97                                 else if (mode == -1) { ReplicateVars_Send(var); update } \
  98                                 else if (ReplicateVars_NOT_SENDING() && check) \
  99                                 { \
 100                                         ReplicateVars_Send(var); \
 101                                         ReplicateVars_DELAY_1FRAME(); \
 102                                         update \
 103                                         return; \
 104                                 } \
 105                         }
 106
 107                 #define REPLICATE_SIMPLE(field, cvarname) MACRO_BEGIN \
 108                         if (ReplicateVars_NOT_SENDING()) \
 109                         { \
 110                                 float thecvar = cvar(cvarname); \
 111                                 if(field != thecvar) \
 112                                 { \
 113                                         ReplicateVars_Send(cvarname); \
 114                                         ReplicateVars_DELAY_1FRAME(); \
 115                                         field = thecvar; \
 116                                         return; \
 117                                 } \
 118                         } \
 119                 MACRO_END
 120         #endif
 121
 122 #endif