test: fix an alignment issue with btVector3/vec3 casts.

test/Physics/EasyPhysics.cpp

@@ -129,7 +129,7 @@ void EasyPhysics::SetMass(float mass)
 	if (m_rigid_body)
 	{
 		SetLocalInertia(m_mass);
-		m_rigid_body->setMassProps(mass, LOL2BT_VEC3(m_local_inertia));
+		m_rigid_body->setMassProps(mass, m_local_inertia);
 	}
 }
 

test/Physics/LolBtPhysicsIntegration.h

@@ -26,7 +26,7 @@ namespace lol
 #define LOL2BT_SIZE				0.5f
 #define BT2LOL_SIZE				2.0f
 
-#define LOL2BT_VEC3(ELEMENT)	(*(btVector3*)(&(ELEMENT)))
+#define LOL2BT_VEC3(ELEMENT)	btVector3((ELEMENT).x, (ELEMENT).y, (ELEMENT).z)
 #define BT2LOL_VEC3(ELEMENT)	(*(lol::vec3*)(&(ELEMENT)))
 
 #define LOL2BT_QUAT(ELEMENT)	btQuaternion((ELEMENT).x, (ELEMENT).y, (ELEMENT).z, (ELEMENT).w)