Initial implementation of cvar aliases, with slowmo as a starting example

[xonotic/darkplaces.git] / cvar.h

diff --git a/cvar.h b/cvar.h
index 2bbcd1dc177bc9a4470d30ff59064ca7127db208..84248c56fb339d539bf22e87d7deabf015a447a1 100644 (file)
--- a/cvar.h
+++ b/cvar.h
@@ -76,8 +76,10 @@ interface from being ambiguous.
 #define CVAR_CLIENT 256
 // cvar is accessible in dedicated server
 #define CVAR_SERVER 512
+// cvar is an alias of another cvar
+#define CVAR_ALIAS 1024
 // used to determine if flags is valid
-#define CVAR_MAXFLAGSVAL 1023
+#define CVAR_MAXFLAGSVAL 2047
 // for internal use only!
 #define CVAR_DEFAULTSET (1<<30)
 #define CVAR_ALLOCATED (1<<31)
@@ -149,6 +151,7 @@ typedef struct cvar_s
        //menucvar_t menuinfo;
        struct cvar_s *next;
        struct cvar_s *nextonhashchain;
+       struct cvar_s *alias;
 } cvar_t;
 
 typedef struct cvar_state_s
@@ -172,10 +175,14 @@ void Cvar_MenuOption(cvar_t *variable, int menu, int value[16], const char *name
 
 /// registers a cvar that already has the name, string, and optionally the
 /// archive elements set.
+void Cvar_RegisterAlias(cvar_t *source, cvar_t *target);
+
 void Cvar_RegisterCallback(cvar_t *variable, void (*callback)(char *));
 
 void Cvar_RegisterVariable(cvar_t *variable);
 
+qboolean Cvar_Readonly (cvar_t *var, const char *cmd_name);
+
 /// equivelant to "<name> <variable>" typed at the console
 void Cvar_Set (cvar_state_t *cvars, const char *var_name, const char *value);
 
@@ -229,7 +236,7 @@ void Cvar_WriteVariables (cvar_state_t *cvars, qfile_t *f);
 // Writes lines containing "set variable value" for all variables
 // with the archive flag set to true.
 
-cvar_t *Cvar_FindVar(cvar_state_t *cvars, const char *var_name, int neededflags);
+cvar_t *Cvar_FindVar(cvar_state_t *cvars, const char *var_name, int neededflags, qboolean alias);
 cvar_t *Cvar_FindVarAfter(cvar_state_t *cvars, const char *prev_var_name, int neededflags);
 
 int Cvar_CompleteCountPossible(cvar_state_t *cvars, const char *partial, int neededflags);