// Select the connection to the actual Bullet implementation.
// The main engine selection is the engineName up to the first hypen.
// So "Bullet-2.80-OpenCL-Intel" specifies the 'bullet' class here and the whole name
// is passed to the engine to do its special selection, etc.
private BSAPITemplate SelectUnderlyingBulletEngine(string engineName)
{
// For the moment, do a simple switch statement.
// Someday do fancyness with looking up the interfaces in the assembly.
BSAPITemplate ret = null;
string selectionName = engineName.ToLower();
int hyphenIndex = engineName.IndexOf("-");
if (hyphenIndex > 0)
{
selectionName = engineName.ToLower().Substring(0, hyphenIndex - 1);
}
switch (selectionName)
{
case "bulletunmanaged":
ret = new BSAPIUnman(engineName, this);
break;
case "bulletxna":
ret = new BSAPIXNA(engineName, this);
break;
}
if (ret == null)
{
MainConsole.Instance.ErrorFormat(
"{0) COULD NOT SELECT BULLET ENGINE: '[BulletSim]PhysicsEngine' must be either 'BulletUnmanaged-*' or 'BulletXNA-*'",
LogHeader);
}
else
{
MainConsole.Instance.WarnFormat("{0} Selected bullet engine {1} -> {2}/{3}", LogHeader, engineName,
ret.BulletEngineName, ret.BulletEngineVersion);
}
return(ret);
}
public override void Initialise(IMesher meshmerizer, IScene scene)
{
Scene = scene;
mesher = meshmerizer;
_taintOperations = new List<TaintCallbackEntry>();
_postTaintOperations = new Dictionary<string, TaintCallbackEntry>();
_postStepOperations = new List<TaintCallbackEntry>();
PhysObjects = new Dictionary<uint, BSPhysObject>();
Shapes = new BSShapeCollection(this);
// Allocate pinned memory to pass parameters.
UnmanagedParams = new ConfigurationParameters[1];
// Set default values for physics parameters plus any overrides from the ini file
GetInitialParameterValues(scene.Config);
// Get the connection to the physics engine (could be native or one of many DLLs)
PE = SelectUnderlyingBulletEngine(BulletEngineName);
// Enable very detailed logging.
// By creating an empty logger when not logging, the log message invocation code
// can be left in and every call doesn't have to check for null.
/*if (m_physicsLoggingEnabled)
{
PhysicsLogging = new Logging.LogWriter(m_physicsLoggingDir, m_physicsLoggingPrefix, m_physicsLoggingFileMinutes);
PhysicsLogging.ErrorLogger = m_log; // for DEBUG. Let's the logger output error messages.
}
else
{
PhysicsLogging = new Logging.LogWriter();
}*/
// Allocate memory for returning of the updates and collisions from the physics engine
m_collisionArray = new CollisionDesc[m_maxCollisionsPerFrame];
m_updateArray = new EntityProperties[m_maxUpdatesPerFrame];
// The bounding box for the simulated world. The origin is 0,0,0 unless we're
// a child in a mega-region.
// Bullet actually doesn't care about the extents of the simulated
// area. It tracks active objects no matter where they are.
Vector3 worldExtent = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionHeight);
World = PE.Initialize(worldExtent, Params, m_maxCollisionsPerFrame, ref m_collisionArray,
m_maxUpdatesPerFrame, ref m_updateArray);
Constraints = new BSConstraintCollection(World);
TerrainManager = new BSTerrainManager(this);
TerrainManager.CreateInitialGroundPlaneAndTerrain();
MainConsole.Instance.WarnFormat("{0} Linksets implemented with {1}", LogHeader,
(BSLinkset.LinksetImplementation)BSParam.LinksetImplementation);
InTaintTime = false;
m_initialized = true;
}