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Adding and removing collide masks

/ Published in: Python
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  1. def addCollideMask(np,mask):
  2.     """Add mask to the NodePath's existing collide mask (do a binary OR of
  3.     the two bitmasks)."""
  4.     np.setCollideMask(np.getCollideMask() | mask)
  5.  
  6. def removeCollideMask(np,mask):
  7.     """Remove mask from the NodePath's existing collide mask (all bits set
  8.     to 1 in mask will be set to 0 in the NodePath's mask)."""
  9.     # Need to copy mask first to avoid modifying it in place.
  10.     copy = mask & BitMask32.allOn()
  11.     copy.invertInPlace()
  12.     np.setCollideMask(np.getCollideMask() & copy)

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