Beispiel #1
0
        // 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;
        }