janwas
4027a8f11b
Long iterator type names are better expressed via typedefs, anyway :) (or 'auto' keyword of upcoming C++09) This was SVN commit r6226.
147 lines
3.6 KiB
C++
147 lines
3.6 KiB
C++
/**
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* =========================================================================
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* File : SoundGroupMgr.h
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* Project : 0 A.D.
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* Description : Manages and updates SoundGroups
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* =========================================================================
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*/
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// license: GPL; see sound/license.txt
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// Example usage:
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// size_t index;
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// CSoundGroupMgr *sgm = CSoundGroupMgr::GetInstance();
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// index = sgm->AddGroup("SoundGroup.xml");
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// sgm->UpdateSoundGroups(TimeSinceLastFrame); // call in Frame()
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// sgm->PlayNext(index); // wash-rinse-repeat
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// sgm->RemoveGroup(index); // Remove the group if you like
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// sgm->DeleteInstance(); // Delete instance in shutdown
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#include "precompiled.h"
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#include "SoundGroupMgr.h"
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typedef std::vector<CSoundGroup*> SoundGroups;
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typedef SoundGroups::iterator SoundGroupIt;
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CSoundGroupMgr *CSoundGroupMgr::m_pInstance = 0;
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CSoundGroupMgr::CSoundGroupMgr()
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{
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}
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CSoundGroupMgr *CSoundGroupMgr::GetInstance()
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{
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if(!m_pInstance)
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m_pInstance = new CSoundGroupMgr();
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return m_pInstance;
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}
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void CSoundGroupMgr::DeleteInstance()
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{
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if(m_pInstance)
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{
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SoundGroupIt vIter = m_pInstance->m_Groups.begin();
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while(vIter != m_pInstance->m_Groups.end())
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vIter = m_pInstance->RemoveGroup(vIter);
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delete m_pInstance;
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}
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m_pInstance = 0;
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}
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///////////////////////////////////////////
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// AddGroup()
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// in: const char *XMLFile - the filename of the SoundGroup.xml to open
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// out: size_t index into m_Groups
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// Loads the given XML file and returns an index for later use
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///////////////////////////////////////////
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size_t CSoundGroupMgr::AddGroup(const char *XMLFile)
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{
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CSoundGroup* newGroup = new CSoundGroup(XMLFile);
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m_Groups.push_back(newGroup);
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return m_Groups.size() - 1;
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}
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///////////////////////////////////////////
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// RemoveGroup()
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// in: size_t index into m_Groups
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// out: SoundGroupIt - one past the index removed (sometimes useful)
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// Removes and Releases a given soundgroup
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///////////////////////////////////////////
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SoundGroupIt CSoundGroupMgr::RemoveGroup(size_t index)
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{
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SoundGroupIt vIter = m_Groups.begin();
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if(index >= m_Groups.size())
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return vIter;
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CSoundGroup *temp = (*vIter);
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(*vIter)->ReleaseGroup();
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vIter = m_Groups.erase(vIter+index);
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delete temp;
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return vIter;
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}
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///////////////////////////////////////////
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// RemoveGroup()
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// in: SoundGroupIt - item to remove
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// out: SoundGroupIt - one past the index removed (sometimes useful)
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// Removes and Releases a given soundgroup
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///////////////////////////////////////////
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SoundGroupIt CSoundGroupMgr::RemoveGroup(SoundGroupIt iter)
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{
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(*iter)->ReleaseGroup();
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CSoundGroup *temp = (*iter);
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iter = m_Groups.erase(iter);
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delete temp;
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return iter;
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}
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///////////////////////////////////////////
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// UpdateSoundGroups()
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// updates all soundgroups, call in Frame()
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///////////////////////////////////////////
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void CSoundGroupMgr::UpdateSoundGroups(float TimeSinceLastFrame)
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{
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SoundGroupIt vIter = m_Groups.begin();
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while(vIter != m_Groups.end())
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{
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(*vIter)->Update(TimeSinceLastFrame);
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vIter++;
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}
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}
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///////////////////////////////////////////
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// PlayNext()
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// in: size_t index - index into m_Groups
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// Plays the next queued sound in an indexed group
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///////////////////////////////////////////
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void CSoundGroupMgr::PlayNext(size_t index, const CVector3D& position)
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{
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if(index < m_Groups.size())
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m_Groups[index]->PlayNext(position);
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else
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debug_printf("SND: PlayNext(%d) invalid, %d groups defined\n", index, m_Groups.size());
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}
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