private void OnAdd(AddObjectMessage message)
{
var path = new Path(BaseConstants.EscortAcceleration, new CircularMotion(0, 50, new Angle(0), new Angle(Math.PI / 10), 20, Vector.Zero));
var selectableObject = new SelectableObject(m_Id.Id, message.Name, path);
m_SelectableRepo.AddObject(selectableObject);
m_Renderer.Scene.Add(message.Name, message.Shape);
}
private void OnAdd(AddObjectMessage message)
{
var path = new Path(4, new CircularMotion(0, 50, new Angle(0), new Angle(Math.PI / 10), BaseConstants.EscortSpeed, Vector.Zero));
var selectableObject = new SelectableObject(m_Id.Id, message.Name, path);
m_Objects.Add(selectableObject);
m_VesselRepository.Add(new Vessel(selectableObject));
}
private void OnAdd(AddObjectMessage message)
{
Add(message.Name, message.Shape);
}
/// <summary>
/// The main interface for communicating between behaviours. Using polymorphism, we
/// define a bunch of different messages deriving from BehaviourMessage. Each behaviour
/// can then check for particular upcasted messahe types, and either grab some data
/// from it (set message) or store some data in it (get message).
/// </summary>
/// <param name="msg">The message being communicated to the behaviour.</param>
public override void OnMessage(ref BehaviourMessage msg)
{
if (msg is AddObjectMessage)
{
AddObjectMessage temp = (AddObjectMessage)msg;
// The template name is how we will categorize items.
String newType = temp.mObj_In.pTemplateFileName;
// Assume that the object was not added to the list.
Boolean added = false;
// Index will be needed outside of the loop to figure out where the object
// was added.
Int32 index = 0;
// Loop through ever object in the inventory looking for another object of the
// same type so that this new object can be grouped in with it.
for (; index < mObjects.Count; index++)
{
// Objects are grouped by the template that defined them.
if (mObjects[index].pTemplateFileName == newType)
{
// Put the new object at the front of the group. It doesn't need to
// be at the front, but it is the quickest/easiest. We may at some point
// want it to go at the end of the list, but that won't work in the case
// where temp.mDoSelectObj is true.
mObjects.Insert(index, temp.mObj_In);
// The object has been added so the special handling below can be skipped.
added = true;
break; // index < mObjects.Count
}
}
// If the object wasn't added above, it means that there are no other objects of this type
// yet in the list (including when the list is completely empty). So it needs to be added
// to the end of the list.
if (!added)
{
mObjects.Add(temp.mObj_In);
}
// If at this point there was no selected object, this new object becomes selected by default.
if (-1 == mCurrentObject)
{
mCurrentObject = 0;
}
else if (true == temp.mDoSelectObj_In)
{
// The message can specifically request that the object added be selected. Since it was inserted
// at the front of its group, we just need to update mCurrentObject to be the current index.
mCurrentObject = index;
}
}
else if (msg is GetCurrentObjectMessage)
{
// Trying to pop with an empty queue is an exception.
if (0 != mObjects.Count)
{
System.Diagnostics.Debug.Assert(mCurrentObject != -1, "mObjects isn't empty but mCurrentObject is undefined. This should never happen.");
// Should never happen.
if (-1 == mCurrentObject)
{
return;
}
GetCurrentObjectMessage temp = (GetCurrentObjectMessage)msg;
// Grab the currently selected object.
temp.mObj_Out = mObjects[mCurrentObject];
mObjects.RemoveAt(mCurrentObject);
// No need to change mCurrentObject as we just removed the object at its index and
// so the object that followed it will now become the current object when it inherits
// that index in the list.
// This can happen when placing the last object in the list while there are still other
// types of objects before it.
if (mObjects.Count <= mCurrentObject)
{
mCurrentObject = 0;
}
// If the list becomes empty set the mCurrentObject back to an undefined so that the
// next object added becomes the current object by default.
if (0 == mObjects.Count)
{
mCurrentObject = -1;
}
}
}
else if (msg is PeekCurrentObjectMessage)
{
if (0 != mObjects.Count)
{
System.Diagnostics.Debug.Assert(mCurrentObject != -1, "mObjects isn't empty but mCurrentObject is undefined. This should never happen.");
PeekCurrentObjectMessage temp = (PeekCurrentObjectMessage)msg;
if (-1 != mCurrentObject)
{
temp.mObj_Out = mObjects[mCurrentObject];
String type = mObjects[mCurrentObject].pTemplateFileName;
// We need to also return the number of objects of this type in the inventory.
// Since they are sorted in groups we just loop until we reach an item of
// a different type.
for (Int32 i = mCurrentObject; i < mObjects.Count; i++)
{
// If its the same type, increase the count.
if (mObjects[i].pTemplateFileName == type)
{
temp.mCount_Out++;
}
else
{
// As soon as we hit another type, stop looking.
break;
}
}
}
}
}
else if (msg is SelectNextItemMessage)
{
if (0 != mObjects.Count)
{
System.Diagnostics.Debug.Assert(mCurrentObject != -1, "mObjects isn't empty but mCurrentObject is undefined. This should never happen.");
if (-1 != mCurrentObject)
{
String type = mObjects[mCurrentObject].pTemplateFileName;
Int32 count = mObjects.Count;
// The loop is slightly odd. We loop for the number of object in the list, but
// we don't use i to index into the array. Instead we are incrementing mCurrentObject
// as we go and using that to iterate. Once we hit an object of another type we stop
// looping and mCurrentObject is left pointing at the next object of a different type.
for (Int32 i = 0; i < count; i++)
{
mCurrentObject++;
// Loop back to the start.
if (mCurrentObject >= count)
{
mCurrentObject = 0;
}
// If we hit another type, we are done.
if (mObjects[mCurrentObject].pTemplateFileName != type)
{
break;
}
}
}
}
}
}
