114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
// * This file is part of the COLOBOT source code
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// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
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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. See the
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// * 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://www.gnu.org/licenses/.
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#include "common/iman.h"
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#include <cassert>
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template<> CInstanceManager* CSingleton<CInstanceManager>::m_instance = nullptr;
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CInstanceManager::CInstanceManager()
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{
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for (int i = 0; i < CLASS_MAX; i++)
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{
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m_table[i].maxCount = 0;
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m_table[i].usedCount = 0;
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m_table[i].instances = nullptr;
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}
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}
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CInstanceManager::~CInstanceManager()
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{
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Flush();
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}
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void CInstanceManager::Flush()
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{
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for (int i = 0; i < CLASS_MAX; i++)
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{
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if (m_table[i].instances != nullptr)
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delete[] m_table[i].instances;
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m_table[i].instances = nullptr;
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}
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}
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void CInstanceManager::Flush(ManagedClassType classType)
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{
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if (classType < 0 || classType >= CLASS_MAX) return;
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if (m_table[classType].instances == nullptr) return;
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delete[] m_table[classType].instances;
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m_table[classType].instances = nullptr;
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}
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bool CInstanceManager::AddInstance(ManagedClassType classType, void* instance, int max)
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{
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if (classType < 0 || classType >= CLASS_MAX) return false;
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if (m_table[classType].instances == nullptr)
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{
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m_table[classType].instances = new void*[max];
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m_table[classType].maxCount = max;
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m_table[classType].usedCount = 0;
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}
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if (m_table[classType].usedCount >= m_table[classType].maxCount) return false;
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int i = m_table[classType].usedCount++;
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m_table[classType].instances[i] = instance;
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return true;
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}
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bool CInstanceManager::DeleteInstance(ManagedClassType classType, void* instance)
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{
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if (classType < 0 || classType >= CLASS_MAX) return false;
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for (int i = 0; i < m_table[classType].usedCount; i++)
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{
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if (m_table[classType].instances[i] == instance)
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m_table[classType].instances[i] = nullptr;
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}
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Compress(classType);
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return true;
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}
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void* CInstanceManager::SearchInstance(ManagedClassType classType, int rank)
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{
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if (classType < 0 || classType >= CLASS_MAX) return nullptr;
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if (m_table[classType].instances == nullptr) return nullptr;
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if (rank >= m_table[classType].usedCount) return nullptr;
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return m_table[classType].instances[rank];
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}
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void CInstanceManager::Compress(ManagedClassType classType)
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{
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if (classType < 0 || classType >= CLASS_MAX) return;
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int j = 0;
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for (int i = 0; i < m_table[classType].usedCount; i++)
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{
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if (m_table[classType].instances[i] != nullptr)
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m_table[classType].instances[j++] = m_table[classType].instances[i];
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}
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m_table[classType].usedCount = j;
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}
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