# $Id$
# Documentation for SCA_ISensor
from SCA_ILogicBrick import *

class SCA_ISensor(SCA_ILogicBrick):
	"""
	Base class for all sensor logic bricks.
	"""
	
	def isPositive():
		"""
		True if this sensor brick has been activated.
		"""
	
	def getUsePosPulseMode():
		"""
		True if the sensor is in positive pulse mode.
		"""
	def setUsePosPulseMode(pulse):
		"""
		Sets positive pulse mode.
		
		@type pulse: boolean
		@param pulse: If True, will activate positive pulse mode for this sensor.
		"""
	def getFrequency():
		"""
		The frequency for pulse mode sensors.
		
		@rtype: integer
		@return: the pulse frequency in 1/50 sec.
		"""
	def setFrequency(freq):
		"""
		Sets the frequency for pulse mode sensors.
		
		@type freq: integer
		@return: the pulse frequency in 1/50 sec.
		"""
	def getUseNegPulseMode():
		"""
		True if the sensor is in negative pulse mode.
		"""
	def setUseNegPulseMode(pulse):
		"""
		Sets negative pulse mode.
		
		@type pulse: boolean
		@param pulse: If True, will activate negative pulse mode for this sensor.
		"""
	def getInvert():
		"""
		True if this sensor activates on negative events.
		"""
	def setInvert(invert):
		"""
		Sets if this sensor activates on positive or negative events.
		
		@type invert: boolean
		@param invert: true if activates on negative events; false if activates on positive events.
		"""
	def getLevel():
		"""
		Returns whether this sensor is a level detector or a edge detector.
		It makes a difference only in case of logic state transition (state actuator).
		A level detector will immediately generate a pulse, negative or positive
		depending on the sensor condition, as soon as the state is activated.
		A edge detector will wait for a state change before generating a pulse.
		
		@rtype: boolean
		@return: true if sensor is level sensitive, false if it is edge sensitive
		"""
	def setLevel(level):
		"""
		Set whether to detect level or edge transition when entering a state.
		
		@param level: Detect level instead of edge? (KX_TRUE, KX_FALSE)
		@type level: boolean
		"""