git-svn-id: https://reactphysics3d.googlecode.com/svn/trunk@82 92aac97c-a6ce-11dd-a772-7fcde58d38e6

sources/reactphysics3d/engine/PhysicsEngine.h

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+/****************************************************************************
+* Copyright (C) 2009      Daniel Chappuis                                  *
+****************************************************************************
+* This file is part of ReactPhysics3D.                                     *
+*                                                                          *
+* ReactPhysics3D 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.                                      *
+*                                                                          *
+* ReactPhysics3D 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 ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>.   *
+***************************************************************************/
+
+#ifndef PHYSICSENGINE_H
+#define PHYSICSENGINE_H
+
+// Libraries
+#include "PhysicsWorld.h"
+#include "Timer.h"
+
+// Namespace ReactPhysics3D
+namespace reactphysics3d {
+
+/*  -------------------------------------------------------------------
+    Class PhysicsEngine :
+        This is an abstract class that represents the physics engine
+        of the library.
+    -------------------------------------------------------------------
+*/
+class PhysicsEngine {
+    private :
+        PhysicsEngine(const PhysicsEngine&);    // Copy-constructor is private because we don't want it to be used
+
+    protected :
+        PhysicsWorld world;                     // Physics world of the physics engine
+        Timer timer;                            // Timer of the physics engine
+
+    public :
+        PhysicsEngine();                        // Constructor
+        virtual ~PhysicsEngine();               // Destructor
+
+        virtual void update()=0;                // Update the physics simulation
+};
+
+}
+
+#endif

sources/reactphysics3d/engine/PhysicsWorld.cpp

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+/****************************************************************************
+* Copyright (C) 2009      Daniel Chappuis                                  *
+****************************************************************************
+* This file is part of ReactPhysics3D.                                     *
+*                                                                          *
+* ReactPhysics3D 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.                                      *
+*                                                                          *
+* ReactPhysics3D 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 ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>.   *
+***************************************************************************/
+
+// Libraries
+#include "World.h"
+
+// We want to use the ReactPhysics3D namespace
+using namespace reactphysics3d;
+
+// Constructor
+PhysicsWorld::PhysicsWorld(const Vector3D& gravity) : gravity(gravity) {
+
+}
+
+// Destructor
+PhysicsWorld::~PhysicsWorld() {
+
+}
+
+// Add a body to the physics world
+void PhysicsWorld::addBody(Body* body) throw(std::invalid_argument) {
+    // Check if the body pointer is not null
+    if (body != 0) {
+        // Check if the body pointer isn't already in the bodyList
+        for(std::vector<Body*>::iterator it = bodyList.begin(); it != bodyList.end(); ) {
+            if (*it == body) {
+                // The body is already in the bodyList, therefore we throw an exception
+                throw std::invalid_argument("Exception in PhysicsWorld::addBody() : The argument body is already in the PhysicsWorld");
+            }
+        }
+
+        // The body isn't already in the bodyList, therefore we add it to the list
+        bodyList.push_back(body);
+    }
+    else {
+        // Throw an exception
+        throw std::invalid_argument("Exception in PhysicsWorld::addBody() : The argument pointer cannot be NULL");
+    }
+}
+
+// Remove a body from the physics world
+void PhysicsWorld::removeBody(Body const* const body) throw(std::invalid_argument) {
+    // Check if the body pointer is not null
+    if (body != 0) {
+        // Look for the body to remove in the bodyList
+        std::vector<Body*>::iterator it = bodyList.begin();
+        while(it != bodyList.end() && *it != body) {
+            // Increment the iterator
+            ++it;
+        }
+
+        // If we have found the body to remove in the bodyList
+        if (*it == body) {
+            // Remove the body
+            bodyList.erase(it);
+        } else {
+            // The body is not in the bodyList, therfore we throw an exception
+            throw std::invalid_argument("Exception in PhysicsWorld::removeBody() : The argument body to remove is not in the PhysicsWorld");
+        }
+    }
+    else {
+        // Throw an exception
+        throw std::invalid_argument("Exception in PhysicsWorld::removeBody() : The argument pointer cannot be NULL");
+    }
+}

sources/reactphysics3d/engine/PhysicsWorld.h

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+/****************************************************************************
+* Copyright (C) 2009      Daniel Chappuis                                  *
+****************************************************************************
+* This file is part of ReactPhysics3D.                                     *
+*                                                                          *
+* ReactPhysics3D 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.                                      *
+*                                                                          *
+* ReactPhysics3D 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 ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>.   *
+***************************************************************************/
+
+#ifndef WORLD_H
+#define WORLD_H
+
+// Libraries
+#include <vector>
+#include <stdexcept>
+#include "../mathematics/mathematics.h"
+#include "../body/Body.h"
+
+// Namespace reactphysics3d
+namespace reactphysics3d {
+
+/*  -------------------------------------------------------------------
+    Class PhysicsWorld :
+        This is an (abstract) class that represents the world of the
+        physics engine. A physics world contains all the bodies of the physics
+        engine.
+    -------------------------------------------------------------------
+*/
+class PhysicsWorld {
+    private :
+        PhysicsWorld(const PhysicsWorld&);          // Copy-constructor is private because we don't want it to be used
+
+    protected :
+        std::vector<Body*> bodyList;                // list that contains all bodies of the physics world
+        Vector3D gravity;                           // Gravity vector of the world
+
+    public :
+        PhysicsWorld(const Vector3D& gravity);      // Constructor
+        virtual ~PhysicsWorld();                    // Destructor
+
+        void addBody(Body* body) throw(std::invalid_argument);                  // Add a body to the physics world
+        void removeBody(Body const* const body) throw(std::invalid_argument);   // Remove a body from the physics world
+};
+
+}   // End of the ReactPhysics3D namespace
+
+ #endif