# ai_list.cpp

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    00001 /* $Id: ai_list.cpp 17692 2009-10-04 17:10:57Z smatz $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include <squirrel.h>
    00013 #include "ai_list.hpp"
    00014
    00015 void AIList::AddItem(int32 item, int32 value)
    00016 {
    00017   AIAbstractList::AddItem(item);
    00018   this->SetValue(item, value);
    00019 }
    00020
    00021 void AIList::ChangeItem(int32 item, int32 value)
    00022 {
    00023   this->SetValue(item, value);
    00024 }
    00025
    00026 void AIList::RemoveItem(int32 item)
    00027 {
    00028   AIAbstractList::RemoveItem(item);
    00029 }
    00030
    00031 SQInteger AIList::_set(HSQUIRRELVM vm)
    00032 {
    00033   if (sq_gettype(vm, 2) != OT_INTEGER) return SQ_ERROR;
    00034   if (sq_gettype(vm, 3) != OT_INTEGER || sq_gettype(vm, 3) == OT_NULL) {
    00035     return sq_throwerror(vm, _SC("you can only assign integers to this list"));
    00036   }
    00037
    00038   SQInteger idx, val;
    00039   sq_getinteger(vm, 2, &idx);
    00040   if (sq_gettype(vm, 3) == OT_NULL) {
    00041     this->RemoveItem(idx);
    00042     return 0;
    00043   }
    00044
    00045   sq_getinteger(vm, 3, &val);
    00046   if (!this->HasItem(idx)) {
    00047     this->AddItem(idx, val);
    00048     return 0;
    00049   }
    00050
    00051   this->ChangeItem(idx, val);
    00052   return 0;
    00053 }