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Compress physical object state

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This commit is contained in:
Benau 2018-07-13 13:46:15 +08:00
parent 5330951842
commit ef65d70f77
2 changed files with 62 additions and 9 deletions
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57
src/network/compress_network_body.hpp Normal file
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@ -0,0 +1,57 @@
//
// SuperTuxKart - a fun racing game with go-kart
// Copyright (C) 2018 SuperTuxKart-Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 3
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifndef HEADER_COMPRESS_NETWORK_BODY_HPP
#define HEADER_COMPRESS_NETWORK_BODY_HPP
#include "network/network_string.hpp"
#include "utils/mini_glm.hpp"
namespace CompressNetworkBody
{
using namespace MiniGLM;
// ------------------------------------------------------------------------
inline void compress(const btTransform& t, const Vec3& lv, const Vec3& av,
BareNetworkString* bns)
{
bns->add(t.getOrigin());
bns->addUInt32(compressQuaternion(t.getRotation()));
bns->addUInt16(toFloat16(lv.x()))
.addUInt16(toFloat16(lv.y())).addUInt16(toFloat16(lv.z()));
bns->addUInt16(toFloat16(av.x()))
.addUInt16(toFloat16(av.y())).addUInt16(toFloat16(av.z()));
} // compress
// ------------------------------------------------------------------------
inline void decompress(const BareNetworkString* bns, btTransform* t,
Vec3* lv, Vec3* av)
{
t->setOrigin(bns->getVec3());
t->setRotation(decompressbtQuaternion(bns->getUInt32()));
short vec[3];
vec[0] = bns->getUInt16();
vec[1] = bns->getUInt16();
vec[2] = bns->getUInt16();
*lv = Vec3(toFloat32(vec[0]), toFloat32(vec[1]), toFloat32(vec[2]));
vec[0] = bns->getUInt16();
vec[1] = bns->getUInt16();
vec[2] = bns->getUInt16();
*av = Vec3(toFloat32(vec[0]), toFloat32(vec[1]), toFloat32(vec[2]));
} // compress
};
#endif // HEADER_COMPRESS_NETWORK_BODY_HPP

14
src/physics/physical_object.cpp
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@ -28,7 +28,7 @@
#include "io/xml_node.hpp"
#include "physics/physics.hpp"
#include "physics/triangle_mesh.hpp"
#include "network/network_string.hpp"
#include "network/compress_network_body.hpp"
#include "network/rewind_manager.hpp"
#include "tracks/track.hpp"
#include "tracks/track_object.hpp"
@ -816,10 +816,8 @@ BareNetworkString* PhysicalObject::saveState(std::vector<std::string>* ru)
m_last_transform = cur_transform;
m_last_lv = m_body->getLinearVelocity();
m_last_av = m_body->getAngularVelocity();
buffer->add(m_last_transform.getOrigin());
buffer->add(m_last_transform.getRotation());
buffer->add(m_last_lv);
buffer->add(m_last_av);
CompressNetworkBody::compress(m_last_transform, m_last_lv, m_last_av,
buffer);
return buffer;
} // saveState
@ -827,10 +825,8 @@ BareNetworkString* PhysicalObject::saveState(std::vector<std::string>* ru)
void PhysicalObject::restoreState(BareNetworkString *buffer, int count)
{
m_no_server_state = false;
m_last_transform.setOrigin(buffer->getVec3());
m_last_transform.setRotation(buffer->getQuat());
m_last_lv = buffer->getVec3();
m_last_av = buffer->getVec3();
CompressNetworkBody::decompress(buffer, &m_last_transform, &m_last_lv,
&m_last_av);
m_body->setWorldTransform(m_last_transform);
m_motion_state->setWorldTransform(m_last_transform);