const int IFLAG_INTERNALMASK = IFLAG_VALID | IFLAG_PREVALID;
// call this BEFORE reading an entity update
-void InterpolateOrigin_Undo();
+void InterpolateOrigin_Undo(entity this);
// call this AFTER receiving an entity update
-void InterpolateOrigin_Note();
+void InterpolateOrigin_Note(entity this);
// call this when the entity got teleported, before InterpolateOrigin_Note
-void InterpolateOrigin_Reset();
+void InterpolateOrigin_Reset(entity this);
// call this BEFORE drawing
-void InterpolateOrigin_Do();
+void InterpolateOrigin_Do(entity this);
// in case we interpolate that:
.vector v_angle;