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Turn noglobals into setglobals, move the extra global variable handling to gamestateglobals.

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This commit is contained in:
Jaime Passos 2019-12-23 18:33:39 -03:00
parent 61b72203a8
commit d0f7877fd0
1 changed files with 17 additions and 11 deletions
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28
src/lua_script.c
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@ -79,8 +79,22 @@ FUNCNORETURN static int LUA_Panic(lua_State *L)
#endif
}
// See lib_getenum in dehacked.c.
static boolean gamestateglobals(const char *csname, lua_State *L)
{
if (fastcmp(csname,"redscore"))
redscore = (UINT32)luaL_checkinteger(L, 2);
else if (fastcmp(csname,"bluescore"))
bluescore = (UINT32)luaL_checkinteger(L, 2);
else
return false;
// Global variable set, so return and don't error.
return true;
}
// This function decides which global variables you are allowed to set.
static int noglobals(lua_State *L)
static int setglobals(lua_State *L)
{
const char *csname;
char *name;
@ -106,16 +120,8 @@ static int noglobals(lua_State *L)
return 0;
}
if (fastcmp(csname,"redscore"))
{
redscore = (UINT32)luaL_checkinteger(L, 2);
if (gamestateglobals(csname, L))
return 0;
}
else if (fastcmp(csname,"bluescore"))
{
bluescore = (UINT32)luaL_checkinteger(L, 2);
return 0;
}
Z_Free(name);
return luaL_error(L, "Implicit global " LUA_QS " prevented. Create a local variable instead.", csname);
@ -155,7 +161,7 @@ static void LUA_ClearState(void)
// lock the global namespace
lua_getmetatable(L, LUA_GLOBALSINDEX);
lua_pushcfunction(L, noglobals);
lua_pushcfunction(L, setglobals);
lua_setfield(L, -2, "__newindex");
lua_newtable(L);
lua_setfield(L, -2, "__metatable");