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getActionName: added support for custom actions (A_ prefix functions only)

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Monster Iestyn 2017-10-31 16:47:24 +00:00
parent 440ada120d
commit 42b955f4ca
1 changed files with 45 additions and 9 deletions
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36
src/dehacked.c
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@ -8331,6 +8331,8 @@ int LUA_EnumLib(lua_State *L)
// getActionName(action) -> return action's string name // getActionName(action) -> return action's string name
static int lib_getActionName(lua_State *L) static int lib_getActionName(lua_State *L)
{ {
if (lua_isuserdata(L, 1)) // arg 1 is built-in action, expect action userdata
{
actionf_t *action = *((actionf_t **)luaL_checkudata(L, 1, META_ACTION)); actionf_t *action = *((actionf_t **)luaL_checkudata(L, 1, META_ACTION));
const char *name = NULL; const char *name = NULL;
if (!action) if (!action)
@ -8340,6 +8342,40 @@ static int lib_getActionName(lua_State *L)
return 0; return 0;
lua_pushstring(L, name); lua_pushstring(L, name);
return 1; return 1;
}
else if (lua_isfunction(L, 1)) // arg 1 is a function (either C or Lua)
{
lua_settop(L, 1); // set top of stack to 1 (removing any extra args, which there shouldn't be)
// get the name for this action, if possible.
lua_getfield(gL, LUA_REGISTRYINDEX, LREG_ACTIONS);
lua_pushnil(gL);
// Lua stack at this point:
// 1 ... -2 -1
// arg ... LREG_ACTIONS nil
while (lua_next(gL, -2))
{
// Lua stack at this point:
// 1 ... -3 -2 -1
// arg ... LREG_ACTIONS "A_ACTION" function
if (lua_rawequal(gL, -1, 1)) // is this the same as the arg?
{
// make sure the key (i.e. "A_ACTION") is a string first
// (note: we don't use lua_isstring because it also returns true for numbers)
if (lua_type(L, -2) == LUA_TSTRING)
{
lua_pushvalue(L, -2); // push "A_ACTION" string to top of stack
return 1;
}
lua_pop(gL, 2); // pop the name and function
break; // probably should have succeeded but we didn't, so end the loop
}
lua_pop(gL, 1);
}
lua_pop(gL, 1); // pop LREG_ACTIONS
return 0; // return nothing (don't error)
}
return luaL_typerror(L, 1, "action userdata or Lua function");
} }
int LUA_SOCLib(lua_State *L) int LUA_SOCLib(lua_State *L)