104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
/*
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* This file is part of the Colobot: Gold Edition source code
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* Copyright (C) 2001-2018, Daniel Roux, EPSITEC SA & TerranovaTeam
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* http://epsitec.ch; http://colobot.info; http://github.com/colobot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://gnu.org/licenses
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*/
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#include "CBot/CBotInstr/CBotPreIncExpr.h"
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#include "CBot/CBotInstr/CBotExprVar.h"
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#include "CBot/CBotStack.h"
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#include "CBot/CBotVar/CBotVar.h"
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namespace CBot
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{
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////////////////////////////////////////////////////////////////////////////////
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CBotPreIncExpr::CBotPreIncExpr()
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{
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m_instr = nullptr;
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}
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////////////////////////////////////////////////////////////////////////////////
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CBotPreIncExpr::~CBotPreIncExpr()
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{
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delete m_instr;
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}
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////////////////////////////////////////////////////////////////////////////////
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bool CBotPreIncExpr::Execute(CBotStack* &pj)
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{
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CBotStack* pile = pj->AddStack(this);
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if (pile->IfStep()) return false;
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CBotVar* var1;
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if (pile->GetState() == 0)
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{
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CBotStack* pile2 = pile;
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// retrieves the variable fields and indexes according
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// pile2 is modified on return
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if (!(static_cast<CBotExprVar*>(m_instr))->ExecuteVar(var1, pile2, nullptr, true)) return false;
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if (var1->IsNAN())
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{
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pile->SetError(CBotErrNan, &m_token);
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return pj->Return(pile); // operation performed
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}
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if (!var1->IsDefined())
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{
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pile->SetError(CBotErrNotInit, &m_token);
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return pj->Return(pile); // operation performed
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}
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if (GetTokenType() == ID_INC) var1->Inc();
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else var1->Dec(); // ((CBotVarInt*)var1)->m_val
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pile->IncState();
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}
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if (!m_instr->Execute(pile)) return false;
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return pj->Return(pile); // operation performed
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}
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////////////////////////////////////////////////////////////////////////////////
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void CBotPreIncExpr::RestoreState(CBotStack* &pj, bool bMain)
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{
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if (!bMain) return;
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CBotStack* pile = pj->RestoreStack(this);
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if (pile == nullptr) return;
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if (pile->GetState() == 0)
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{
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return;
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}
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m_instr->RestoreState(pile, bMain);
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}
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std::map<std::string, CBotInstr*> CBotPreIncExpr::GetDebugLinks()
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{
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auto links = CBotInstr::GetDebugLinks();
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links["m_instr"] = m_instr;
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return links;
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}
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} // namespace CBot
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