protected Joint(JointDef def)
{
Debug.Assert(def.bodyA != def.bodyB);
_type = def.type;
_bodyA = def.bodyA;
_bodyB = def.bodyB;
_collideConnected = def.collideConnected;
_userData = def.userData;
_edgeA = new JointEdge();
_edgeB = new JointEdge();
}
internal static Joint Create(JointDef def)
{
Joint joint = null;
switch (def.type)
{
case JointType.Distance:
{
joint = new DistanceJoint((DistanceJointDef)def);
}
break;
case JointType.Mouse:
{
joint = new MouseJoint((MouseJointDef)def);
}
break;
case JointType.Prismatic:
{
joint = new PrismaticJoint((PrismaticJointDef)def);
}
break;
case JointType.Revolute:
{
joint = new RevoluteJoint((RevoluteJointDef)def);
}
break;
case JointType.Pulley:
{
joint = new PulleyJoint((PulleyJointDef)def);
}
break;
case JointType.Gear:
{
joint = new GearJoint((GearJointDef)def);
}
break;
case JointType.Line:
{
joint = new LineJoint((LineJointDef)def);
}
break;
case JointType.Weld:
{
joint = new WeldJoint((WeldJointDef)def);
}
break;
case JointType.Friction:
{
joint = new FrictionJoint((FrictionJointDef)def);
}
break;
case JointType.MaxDistance:
{
joint = new MaxDistanceJoint((MaxDistanceJointDef)def);
}
break;
default:
Debug.Assert(false);
break;
}
return joint;
}
protected Joint(JointDef def)
{
Debug.Assert(def.bodyA != def.bodyB);
_type = def.type;
_bodyA = def.bodyA;
_bodyB = def.bodyB;
_collideConnected = def.collideConnected;
_userData = def.userData;
_edgeA = new JointEdge();
_edgeB = new JointEdge();
}
/// Create a joint to rain bodies together. No reference to the definition
/// is retained. This may cause the connected bodies to cease colliding.
/// @warning This function is locked during callbacks.
public Joint CreateJoint(JointDef def)
{
Debug.Assert(!IsLocked);
if (IsLocked)
{
return(null);
}
Joint j = Joint.Create(def);
// Connect to the world list.
j._prev = null;
j._next = _jointList;
if (_jointList != null)
{
_jointList._prev = j;
}
_jointList = j;
++_jointCount;
// Connect to the bodies' doubly linked lists.
j._edgeA.Joint = j;
j._edgeA.Other = j._bodyB;
j._edgeA.Prev = null;
j._edgeA.Next = j._bodyA._jointList;
if (j._bodyA._jointList != null)
{
j._bodyA._jointList.Prev = j._edgeA;
}
j._bodyA._jointList = j._edgeA;
j._edgeB.Joint = j;
j._edgeB.Other = j._bodyA;
j._edgeB.Prev = null;
j._edgeB.Next = j._bodyB._jointList;
if (j._bodyB._jointList != null)
{
j._bodyB._jointList.Prev = j._edgeB;
}
j._bodyB._jointList = j._edgeB;
Body bodyA = def.bodyA;
Body bodyB = def.bodyB;
bool staticA = bodyA.GetType() == BodyType.Static;
bool staticB = bodyB.GetType() == BodyType.Static;
// If the joint prevents collisions, then flag any contacts for filtering.
if (def.collideConnected == false)
{
ContactEdge edge = bodyB.GetContactList();
while (edge != null)
{
if (edge.Other == bodyA)
{
// Flag the contact for filtering at the next time step (where either
// body is awake).
edge.Contact.FlagForFiltering();
}
edge = edge.Next;
}
}
// Note: creating a joint doesn't wake the bodies.
return(j);
}
/// <summary>
/// Create a joint to rain bodies together. No reference to the definition
/// is retained. This may cause the connected bodies to cease colliding.
/// @warning This function is locked during callbacks.
/// </summary>
/// <param name="def"></param>
/// <returns></returns>
public Joint CreateJoint(JointDef def)
{
Debug.Assert(!IsLocked);
if (IsLocked)
{
return null;
}
Joint j = Joint.Create(def);
// Connect to the world list.
j._prev = null;
j._next = _jointList;
if (_jointList != null)
{
_jointList._prev = j;
}
_jointList = j;
++_jointCount;
// Connect to the bodies' doubly linked lists.
j._edgeA.Joint = j;
j._edgeA.Other = j._bodyB;
j._edgeA.Prev = null;
j._edgeA.Next = j._bodyA._jointList;
if (j._bodyA._jointList != null)
j._bodyA._jointList.Prev = j._edgeA;
j._bodyA._jointList = j._edgeA;
j._edgeB.Joint = j;
j._edgeB.Other = j._bodyA;
j._edgeB.Prev = null;
j._edgeB.Next = j._bodyB._jointList;
if (j._bodyB._jointList != null)
j._bodyB._jointList.Prev = j._edgeB;
j._bodyB._jointList = j._edgeB;
Body bodyA = def.bodyA;
Body bodyB = def.bodyB;
bool staticA = bodyA.GetType() == BodyType.Static;
bool staticB = bodyB.GetType() == BodyType.Static;
// If the joint prevents collisions, then flag any contacts for filtering.
if (def.collideConnected == false)
{
ContactEdge edge = bodyB.GetContactList();
while (edge != null)
{
if (edge.Other == bodyA)
{
// Flag the contact for filtering at the next time step (where either
// body is awake).
edge.Contact.FlagForFiltering();
}
edge = edge.Next;
}
}
// Note: creating a joint doesn't wake the bodies.
return j;
}
public static Joint SetJointWithReflection(this IJointable ithis, string instName, JointDef jointDef)
{
Joint result = null;
Type t = ithis.GetType();
int index = -1;
FieldInfo fi = t.GetField(instName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
if (fi == null)
{
Match m = lastDigits.Match(instName);
if (m.Groups.Count > 2 && t.GetField(instName) == null)
{
instName = m.Groups[1].Value;
index = int.Parse(m.Groups[2].Value, System.Globalization.NumberStyles.None);
fi = t.GetField(instName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
}
}
if (fi != null)
{
Type ft = fi.FieldType;
// apply attributes
System.Attribute[] attrs = System.Attribute.GetCustomAttributes(fi); // reflection
foreach (System.Attribute attr in attrs)
{
if (jointDef is DistanceJointDef && attr is DistanceJointAttribute)
{
((DistanceJointAttribute)attr).ApplyAttribtues((DistanceJointDef)jointDef);
}
else if (jointDef is GearJointDef && attr is GearJointAttribute)
{
((GearJointAttribute)attr).ApplyAttribtues((GearJointDef)jointDef);
}
else if (jointDef is LineJointDef && attr is LineJointAttribute)
{
((LineJointAttribute)attr).ApplyAttribtues((LineJointDef)jointDef);
}
else if (jointDef is PrismaticJointDef && attr is PrismaticJointAttribute)
{
((PrismaticJointAttribute)attr).ApplyAttribtues((PrismaticJointDef)jointDef);
}
else if (jointDef is PulleyJointDef && attr is PulleyJointAttribute)
{
((PulleyJointAttribute)attr).ApplyAttribtues((PulleyJointDef)jointDef);
}
else if (jointDef is RevoluteJointDef && attr is RevoluteJointAttribute)
{
((RevoluteJointAttribute)attr).ApplyAttribtues((RevoluteJointDef)jointDef);
}
}
result = ithis.VScreen.world.CreateJoint(jointDef);
if (ft.IsArray)
{
object array = fi.GetValue(ithis);
Type elementType = ft.GetElementType();
if (array == null)
{
int arrayLength = GetJointArrayLength(ithis, instName);
array = Array.CreateInstance(elementType, arrayLength);
fi.SetValue(ithis, array);
}
MethodInfo mi = array.GetType().GetMethod("SetValue", new Type[] { elementType, index.GetType() });
mi.Invoke(array, new object[] { result, index });
}
else if (typeof(System.Collections.ICollection).IsAssignableFrom(ft))
{
Type[] genTypes = ft.GetGenericArguments();
if (genTypes.Length == 1) // only support single type generics (eg List<>) for now
{
Type gt = genTypes[0];
object collection = fi.GetValue(ithis);
if (collection == null) // ensure list created
{
ConstructorInfo ci = ft.GetConstructor(new Type[] { });
collection = ci.Invoke(new object[] { });
fi.SetValue(ithis, collection);
}
PropertyInfo cm = collection.GetType().GetProperty("Count");
int cnt = (int)cm.GetValue(collection, new object[] { });
// pad with nulls if needs to skip indexes (order is based on flash depth, not index)
while (index > cnt)
{
MethodInfo mia = collection.GetType().GetMethod("Add");
mia.Invoke(collection, new object[] { null });
cnt = (int)cm.GetValue(collection, new object[] { });
}
if (index < cnt)
{
MethodInfo mia = collection.GetType().GetMethod("RemoveAt");
mia.Invoke(collection, new object[] { index });
}
MethodInfo mi = collection.GetType().GetMethod("Insert");
mi.Invoke(collection, new object[] { index, result });
}
}
else if (ft.Equals(typeof(Joint)) || ft.IsSubclassOf(typeof(Joint)))
{
fi.SetValue(ithis, result);
}
else
{
throw new ArgumentException("Not supported field type. " + ft.ToString() + " " + instName);
}
}
else
{
result = ithis.VScreen.world.CreateJoint(jointDef);
}
return result;
}
internal static Joint Create(JointDef def)
{
Joint joint = null;
switch (def.type)
{
case JointType.Distance:
{
joint = new DistanceJoint((DistanceJointDef)def);
}
break;
case JointType.Mouse:
{
joint = new MouseJoint((MouseJointDef)def);
}
break;
case JointType.Prismatic:
{
joint = new PrismaticJoint((PrismaticJointDef)def);
}
break;
case JointType.Revolute:
{
joint = new RevoluteJoint((RevoluteJointDef)def);
}
break;
case JointType.Pulley:
{
joint = new PulleyJoint((PulleyJointDef)def);
}
break;
case JointType.Gear:
{
joint = new GearJoint((GearJointDef)def);
}
break;
case JointType.Line:
{
joint = new LineJoint((LineJointDef)def);
}
break;
case JointType.Weld:
{
joint = new WeldJoint((WeldJointDef)def);
}
break;
case JointType.Friction:
{
joint = new FrictionJoint((FrictionJointDef)def);
}
break;
case JointType.MaxDistance:
{
joint = new MaxDistanceJoint((MaxDistanceJointDef)def);
}
break;
default:
Debug.Assert(false);
break;
}
return(joint);
}
