CNAT - Contact Attachment

In multiple places the engine uses ContactAttachment values (a bitmask) to manage the orientation of objects and processes. For example, a vertex of an object can have the CNAT bit left. If that object has ContactCalls activated, the engine calls on every contact of that vertex with the landscape the object script function ContactLeft. CNAT values are composed of the following bits:

CNAT	Beschreibung
CNAT_Left	Richtung: Links
CNAT_Right	Richtung: Rechts
CNAT_Top	Richtung: Oben
CNAT_Bottom	Richtung: Unten
CNAT_Center	Richtung: Mitte (nicht für Attachment)
CNAT_MultiAttach	Zusatz-Flag: neues Attachment-Verhalten für Objekte mit gleicher Richtung an mehreren Vertices.
CNAT_NoCollision	Zusatz-Flag: kollisionsfreier Vertex
CNAT_PhaseHalfVehicle	Extra flag: Entirely suppress collisions with HalfVehicle

CNAT:

A vertex can have multiple CNAT values, they can be combined them with the | operator. Example:

Attach = CNAT_Bottom | CNAT_Left