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#include "UnityPrefix.h"
#include "NetworkViewIDAllocator.h"
#if ENABLE_NETWORK
NetworkViewIDAllocator::NetworkViewIDAllocator()
{
Clear(kDefaultViewIDBatchSize, kMinimumViewIDs, 0, kUndefindedPlayerIndex);
}
UInt32 NetworkViewIDAllocator::AllocateBatch (NetworkPlayer player)
{
UInt32 batchIndex = m_AllocatedViewIDBatches.size();
m_AllocatedViewIDBatches.push_back(player);
return batchIndex;
}
NetworkViewID NetworkViewIDAllocator::AllocateViewID ()
{
if (!m_AvailableBatches.empty())
{
AvailableBatch& batch = m_AvailableBatches.front();
NetworkViewID viewID;
viewID.SetAllocatedID(batch.first);
batch.first++;
batch.count--;
if (batch.count == 0)
m_AvailableBatches.erase(m_AvailableBatches.begin());
return viewID;
}
else
{
return NetworkViewID();
}
}
NetworkPlayer NetworkViewIDAllocator::FindOwner (NetworkViewID viewID)
{
if (viewID.IsSceneID())
{
return m_ServerPlayer;
}
else
{
UInt32 index = viewID.GetIndex();
index /= m_BatchSize;
// On Clients we use received batches. On the client we can only find out if the batch is ours.
// Otherwise it defaults to the server
if (!m_ReceivedBatches.empty())
{
for (ReceivedBatches::iterator i=m_ReceivedBatches.begin();i != m_ReceivedBatches.end();i++)
{
if (*i == index)
return m_ClientPlayer;
}
return m_ServerPlayer;
}
// The Server allocates all network view id's so he knows all players for all view ids
else
{
if (index < m_AllocatedViewIDBatches.size())
return m_AllocatedViewIDBatches[index];
else
return kUndefindedPlayerIndex;
}
return 0;
}
}
void NetworkViewIDAllocator::FeedAvailableBatchOnClient (UInt32 batchIndex)
{
m_ReceivedBatches.push_back(batchIndex);
AvailableBatch batch;
batch.first = batchIndex * m_BatchSize;
batch.count = m_BatchSize;
m_AvailableBatches.push_back(batch);
}
void NetworkViewIDAllocator::FeedAvailableBatchOnServer (UInt32 batchIndex)
{
AvailableBatch batch;
batch.first = batchIndex * m_BatchSize;
batch.count = m_BatchSize;
if (batchIndex == 0)
{
batch.first++;
batch.count--;
}
m_AvailableBatches.push_back(batch);
}
int NetworkViewIDAllocator::ShouldRequestMoreBatches ()
{
// Count how many id's we have left
int viewIDsLeft = 0;
for (int i=0;i<m_AvailableBatches.size();i++)
viewIDsLeft += m_AvailableBatches[i].count;
// Do we need to request new id batches
viewIDsLeft += m_BatchSize * m_RequestedBatches;
if (viewIDsLeft < m_MinAvailableViewIDs)
{
int extraRequiredViewIDs = m_MinAvailableViewIDs - viewIDsLeft;
int requestedBatches = ((extraRequiredViewIDs -1) / m_BatchSize) + 1;
return requestedBatches;
}
return 0;
}
void NetworkViewIDAllocator::Clear (int batchSize, int minimumViewIDs, NetworkPlayer server, NetworkPlayer client)
{
m_MinAvailableViewIDs = minimumViewIDs;
m_BatchSize = batchSize;
m_AllocatedViewIDBatches.clear();
m_AvailableBatches.clear();
m_ReceivedBatches.clear();
m_RequestedBatches = 0;
m_ClientPlayer = client;
m_ServerPlayer = server;
}
#endif
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