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/*
$Id: netvariables.cpp,v 1.4 2001/05/18 11:58:37 mbn Exp $
------------------------------------------------------------------------
ClanLib, the platform independent game SDK.
This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
version 2. See COPYING for details.
For a total list of contributers see CREDITS.
------------------------------------------------------------------------
*/
#include "API/Core/System/cl_assert.h"
#include "API/Network/netvariables.h"
#include "netvariables_generic.h"
#include <vector>
/////////////////////////////////////////////////////////////////////////////
// CL_NetVariables Construction:
CL_NetVariables::CL_NetVariables()
: impl(new CL_NetVariables_Generic)
{
}
CL_NetVariables::~CL_NetVariables()
{
delete impl;
}
/////////////////////////////////////////////////////////////////////////////
// CL_NetVariables Attributes:
bool CL_NetVariables::is_different()
{
std::list<CL_NetVariable *>::iterator it;
for (it = impl->vars.begin(); it != impl->vars.end(); it++)
{
CL_NetVariable *var = *it;
if (var->is_different()) return true;
}
return false;
}
/////////////////////////////////////////////////////////////////////////////
// CL_NetVariables Operations:
void CL_NetVariables::add_bool(bool *var, int array)
{
impl->vars.push_back(new CL_NetVariableT<bool>(var, array));
}
void CL_NetVariables::add_int(int *var, int array)
{
impl->vars.push_back(new CL_NetVariableT<int>(var, array));
}
void CL_NetVariables::add_short(short *var, int array)
{
impl->vars.push_back(new CL_NetVariableT<short>(var, array));
}
void CL_NetVariables::add_float(float *var, int array)
{
impl->vars.push_back(new CL_NetVariableT<float>(var, array, false));
}
void CL_NetVariables::add_double(double *var, int array)
{
impl->vars.push_back(new CL_NetVariableT<double>(var, array, false));
}
void CL_NetVariables::add_vars(CL_NetVariables *variables, int array)
{
for (int i=0; i<array; i++)
{
std::list<CL_NetVariable *>::iterator it;
for (it = variables[i].impl->vars.begin(); it != variables[i].impl->vars.end(); it++)
{
CL_NetVariable *var = *it;
impl->vars.push_back(var->clone());
}
}
}
void CL_NetVariables::save_all(class CL_OutputSource *msg)
{
std::list<CL_NetVariable *>::iterator it;
for (it = impl->vars.begin(); it != impl->vars.end(); it++)
{
CL_NetVariable *var = *it;
var->save(msg);
}
}
void CL_NetVariables::load_all(class CL_InputSource *msg)
{
std::list<CL_NetVariable *>::iterator it;
for (it = impl->vars.begin(); it != impl->vars.end(); it++)
{
CL_NetVariable *var = *it;
var->load(msg);
}
}
void CL_NetVariables::save_diff(class CL_OutputSource *msg)
{
std::vector<unsigned char> diff_bits;
std::list<CL_NetVariable *>::iterator it;
int bitpos;
if (impl->vars.empty()) return;
// Create diff bits.
// For every 8 netvariables, we have a byte indicating which ones
// have changed. If the bit is set, it means we saved the variable.
diff_bits.resize((impl->vars.size()+7) / 8);
for (it = impl->vars.begin(), bitpos = 0; it != impl->vars.end(); it++, bitpos++)
{
CL_NetVariable *var = *it;
if (var->is_different()) diff_bits[bitpos/8] |= (1 << (bitpos % 8));
}
// Save the variables, and store diffbit for every eight variable.
for (it = impl->vars.begin(), bitpos = 0; it != impl->vars.end(); it++, bitpos++)
{
if (bitpos % 8 == 0) msg->write_uchar8(diff_bits[bitpos/8]);
CL_NetVariable *var = *it;
if (var->is_different()) var->save(msg);
}
}
void CL_NetVariables::load_diff(class CL_InputSource *msg)
{
std::list<CL_NetVariable *>::iterator it;
int bitpos;
unsigned char diff_bits = 0;
if (impl->vars.empty()) return;
for (it = impl->vars.begin(), bitpos = 0; it != impl->vars.end(); it++, bitpos++)
{
if (bitpos % 8 == 0) diff_bits = msg->read_uchar8();
CL_NetVariable *var = *it;
if ((diff_bits & 1)) var->load(msg);
diff_bits >>= 1;
}
}
/////////////////////////////////////////////////////////////////////////////
// CL_NetVariables Implementation:
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