add generic btConeTwistConstraint::setLimit, and change defaults for limit drawing

src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.h

@@ -114,6 +114,31 @@ public:
 		m_angularOnly = angularOnly;
 	}
 
+	void	setLimit(int limitIndex,btScalar limitValue)
+	{
+		switch (limitIndex)
+		{
+		case 3:
+			{
+				m_swingSpan1 = limitValue;
+				break;
+			}
+		case 4:
+			{
+				m_swingSpan2 = limitValue;
+				break;
+			}
+		case 5:
+			{
+				m_twistSpan = limitValue;
+				break;
+			}
+		default:
+			{
+			}
+		};
+	}
+
 	void	setLimit(btScalar _swingSpan1,btScalar _swingSpan2,btScalar _twistSpan,  btScalar _softness = 0.8f, btScalar _biasFactor = 0.3f, btScalar _relaxationFactor = 1.0f)
 	{
 		m_swingSpan1 = _swingSpan1;

src/BulletDynamics/ConstraintSolver/btTypedConstraint.cpp

@@ -19,6 +19,8 @@ subject to the following restrictions:
 
 static btRigidBody s_fixed(0, 0,0);
 
+#define DEFAULT_DEBUGDRAW_SIZE btScalar(5.f)
+
 btTypedConstraint::btTypedConstraint(btTypedConstraintType type)
 :m_userConstraintType(-1),
 m_userConstraintId(-1),
@@ -26,7 +28,7 @@ m_constraintType (type),
 m_rbA(s_fixed),
 m_rbB(s_fixed),
 m_appliedImpulse(btScalar(0.)),
-m_DbgDrawSize(btScalar(-1.f))
+m_dbgDrawSize(DEFAULT_DEBUGDRAW_SIZE)
 {
 	s_fixed.setMassProps(btScalar(0.),btVector3(btScalar(0.),btScalar(0.),btScalar(0.)));
 }
@@ -37,7 +39,7 @@ m_constraintType (type),
 m_rbA(rbA),
 m_rbB(s_fixed),
 m_appliedImpulse(btScalar(0.)),
-m_DbgDrawSize(btScalar(-1.f))
+m_dbgDrawSize(DEFAULT_DEBUGDRAW_SIZE)
 {
 		s_fixed.setMassProps(btScalar(0.),btVector3(btScalar(0.),btScalar(0.),btScalar(0.)));
 
@@ -51,7 +53,7 @@ m_constraintType (type),
 m_rbA(rbA),
 m_rbB(rbB),
 m_appliedImpulse(btScalar(0.)),
-m_DbgDrawSize(btScalar(-1.f))
+m_dbgDrawSize(DEFAULT_DEBUGDRAW_SIZE)
 {
 		s_fixed.setMassProps(btScalar(0.),btVector3(btScalar(0.),btScalar(0.),btScalar(0.)));
 

src/BulletDynamics/ConstraintSolver/btTypedConstraint.h

@@ -53,7 +53,7 @@ protected:
 	btRigidBody&	m_rbA;
 	btRigidBody&	m_rbB;
 	btScalar	m_appliedImpulse;
-	btScalar	m_DbgDrawSize;
+	btScalar	m_dbgDrawSize;
 
 
 public:
@@ -165,11 +165,11 @@ public:
 	
 	void setDbgDrawSize(btScalar dbgDrawSize)
 	{
-		m_DbgDrawSize = dbgDrawSize;
+		m_dbgDrawSize = dbgDrawSize;
 	}
 	btScalar getDbgDrawSize()
 	{
-		return m_DbgDrawSize;
+		return m_dbgDrawSize;
 	}
 	
 };