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added the ability to get the # of a mapthing_t in Lua

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This commit is contained in:
Monster Iestyn 2020-05-22 18:32:34 +01:00
parent 7722d41be6
commit 4b7f0f49f1
1 changed files with 12 additions and 0 deletions
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12
src/lua_mobjlib.c
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@ -829,6 +829,15 @@ static int mapthing_set(lua_State *L)
return 0;
}
static int mapthing_num(lua_State *L)
{
mapthing_t *mt = *((mapthing_t **)luaL_checkudata(L, 1, META_MAPTHING));
if (!mt)
return luaL_error(L, "accessed mapthing_t doesn't exist anymore.");
lua_pushinteger(L, mt-mapthings);
return 1;
}
static int lib_iterateMapthings(lua_State *L)
{
size_t i = 0;
@ -893,6 +902,9 @@ int LUA_MobjLib(lua_State *L)
lua_pushcfunction(L, mapthing_set);
lua_setfield(L, -2, "__newindex");
lua_pushcfunction(L, mapthing_num);
lua_setfield(L, -2, "__len");
lua_pop(L,1);
lua_newuserdata(L, 0);