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/*
core/physics.cc
This file is part of the Osirion project and is distributed under
the terms and conditions of the GNU General Public License version 2
*/
#include "model/collisionmesh.h"
#include "core/physics.h"
#include "core/zone.h"
#include "BulletCollision/Gimpact/btGImpactCollisionAlgorithm.h"
namespace core {
btDefaultCollisionConfiguration *Physics::physics_configuration = 0;
btCollisionDispatcher *Physics::physics_dispatcher = 0;
btSequentialImpulseConstraintSolver *Physics::physics_solver = 0;
unsigned long Physics::physics_timestamp = 0;
void Physics::init()
{
con_print << "^BInitializing physics engine..." << std::endl;
model::CollisionModel::init();
physics_configuration = new btDefaultCollisionConfiguration();
physics_dispatcher = new btCollisionDispatcher(physics_configuration);
btGImpactCollisionAlgorithm::registerAlgorithm(physics_dispatcher);
physics_solver = new btSequentialImpulseConstraintSolver;
physics_timestamp = 0;
}
void Physics::done()
{
con_print << "^BShutting down physics engine..." << std::endl;
model::CollisionModel::shutdown();
delete physics_solver;
delete physics_dispatcher;
delete physics_configuration;
physics_configuration = 0;
physics_dispatcher = 0;
physics_solver = 0;
}
void Physics::frame(const unsigned long timestamp)
{
if (!timestamp)
return;
const float seconds = (float) (timestamp - physics_timestamp) / 1000.0f;
for (core::Zone::Registry::iterator it = core::Zone::registry().begin(); it != core::Zone::registry().end(); it++) {
(*it).second->physics()->stepSimulation(seconds);
}
physics_timestamp = timestamp;
}
} // namespace core
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