Function nhl_get_xy_params

src/nhlua.c:494–523

}

RESTORE_WARNING_UNREACHABLE_CODE

/* get parameters (XX,YY) or ({ x = XX, y = YY }) or ({ XX, YY }),
   and set the x and y values.
   return TRUE if there are such params in the stack.
   Note that this does not adjust the values of x and y at all from what is
   specified in the level file; so, it returns absolute coordinates rather
   than map-relative coordinates. Callers of this function must decide if
   they want to interpret the values as absolute or as map-relative, and
   adjust accordingly.
 */
boolean
nhl_get_xy_params(lua_State *L, lua_Integer *x, lua_Integer *y)
{
    int argc = lua_gettop(L);
    boolean ret = FALSE;

    if (argc == 2) {
        *x = lua_tointeger(L, 1);
        *y = lua_tointeger(L, 2);
        ret = TRUE;
    } else if (argc == 1 && lua_type(L, 1) == LUA_TTABLE) {
        lua_Integer ax, ay;

        ret = get_coord(L, 1, &ax, &ay);
        *x = ax;
        *y = ay;
    }
    return ret;
}

DISABLE_WARNING_UNREACHABLE_CODE