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engines/hpl1/engine/impl/PhysicsJointNewton.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#ifndef HPL_PHYSICS_JOINT_NEWTON_H
+#define HPL_PHYSICS_JOINT_NEWTON_H
+
+#include "hpl1/engine/impl/PhysicsBodyNewton.h"
+#include "hpl1/engine/impl/PhysicsWorldNewton.h"
+#include "hpl1/engine/libraries/newton/Newton.h"
+
+#include "hpl1/engine/system/low_level_system.h"
+
+namespace hpl {
+
+template<typename T>
+class iPhysicsJointNewton : public T {
+public:
+	iPhysicsJointNewton(const tString &asName, iPhysicsBody *apParentBody, iPhysicsBody *apChildBody,
+						iPhysicsWorld *apWorld, const cVector3f &avPivotPoint)
+		: T(asName, apParentBody, apChildBody, apWorld, avPivotPoint) {
+		cPhysicsWorldNewton *pNWorld = static_cast<cPhysicsWorldNewton *>(apWorld);
+
+		mpNewtonWorld = pNWorld->GetNewtonWorld();
+
+		cPhysicsBodyNewton *pNParent = static_cast<cPhysicsBodyNewton *>(apParentBody);
+		cPhysicsBodyNewton *pNChild = static_cast<cPhysicsBodyNewton *>(apChildBody);
+
+		if (apParentBody == NULL)
+			mpNewtonParentBody = NULL;
+		else
+			mpNewtonParentBody = pNParent->GetNewtonBody();
+
+		mpNewtonChildBody = pNChild->GetNewtonBody();
+	}
+
+	virtual ~iPhysicsJointNewton() {
+		// Skip this for now and let newton handle it..
+		// Log("Destroying newton joint!\n");
+		if (this->mpChildBody || this->mpParentBody)
+			NewtonDestroyJoint(mpNewtonWorld, mpNewtonJoint);
+	}
+
+	///////////////////////
+
+	void SetCollideBodies(bool abX) {
+		NewtonJointSetCollisionState(mpNewtonJoint, abX ? 1 : 0);
+	}
+
+	bool GetCollideBodies() {
+		return NewtonJointGetCollisionState(mpNewtonJoint) == 0 ? false : true;
+	}
+
+	///////////////////////
+
+	void SetStiffness(float afX) {
+		NewtonJointSetStiffness(mpNewtonJoint, afX);
+	}
+	float GetStiffness() {
+		return NewtonJointGetStiffness(mpNewtonJoint);
+	}
+
+	///////////////////////
+
+protected:
+	NewtonJoint *mpNewtonJoint;
+	NewtonWorld *mpNewtonWorld;
+	NewtonBody *mpNewtonParentBody;
+	NewtonBody *mpNewtonChildBody;
+};
+
+} // namespace hpl
+
+#endif // HPL_PHYSICS_JOINT_NEWTON_H