# LSlip:	It shows a smiley on yer screen!
# 			Also outputs the average longitudinal slip of the rear tyres to a comma separated list (OFF BY DEFAULT).
# Date:		20-Aug-2013
# Filename: LSplit.py
# Folder: <AC_path>\apps\python\LSplit\

import ac
import acsys

#												Smiley settings, you can change these.
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#																																				#
# SmileyShowTime		0 to 3	(float, seconds). Default: 0.5																					#
#		Action needs to last this long in order to be shown. 0 (instant), 3 (likely to miss ":)" and ":D").										#
#																																				#
# SlipLimitLow			0 to ~4000	(Scalar). Default: 3000																						#
#		Anything below this is ":|" (no slip). Too low and you never see it; too high and it's all you see.										#
#																																				#
# SlipLimitMid			~2000 to ~6000	(Scalar). Default: 4000																					#
#		Between Low and Mid is ":)". Reduce to see less ":)" and more ":D". Increase to see more ":)" and less ":D".							#
#																																				#
# SlipLimitHigh			~4000+ (Scalar). Over 32k may be out of bounds.	Default: 5500															#
#		Between Mid and High is ":D". More than High is ":O". Reduce to see more ":O" and less ":D". Increase to see less ":O" and more ":D".	#
#																																				#
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SmileyShowTime = 0.5	
SlipLimitLow = 3000		
SlipLimitMid = 4000
SlipLimitHigh = 5500

#												Slip value output settings, you can change these.
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#																																				#
# OutputFile			String.																													#
#		Full path and file name of output file.																									#
#																																				#
# WriteToFile			0 or 1	(bool). 																										#
#		0 = output to file is disabled.	1 = output to file is enabled. A 1:25 lap is around 35kB.												#
#																																				#
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OutputFile = 'd:\out.txt'
WriteToFile = 0

### Code starts here, stay away! ###
CurLap = 0
SlipValues = ''
IsFileReset = 0
SmileyTimer = 0
SmileyText = 0

def acMain(ac_version):
	global SmileyText
	
	# Frame settings.
	appWindow = ac.newApp('LSlip')
	ac.setSize(appWindow, 120, 60)
	
	# Text settings.
	SmileyText = ac.addLabel(appWindow, 'Value')
	ac.setPosition(SmileyText, 10, 30)
	ac.setFontAlignment(SmileyText, 'center')
	ac.setSize(SmileyText, 100, 30)
	
	return 'LSlip'
	
def acUpdate(deltaT):
	global SmileyText, CurLap, SlipValues, IsFileReset, SmileyTimer, SmileyShowTime, OutputFile, SlipLimitLow, SlipLimitMid, SlipLimitHigh
	
	# Smiley section.
	FL, FR, RL, RR = ac.getCarState(0, acsys.CS.TyreSlip)
	CurSlipValue = round( (RL+RR)/2 )
	
	if SmileyTimer > SmileyShowTime:
		if SlipLimitLow < CurSlipValue < SlipLimitMid+1:
			ac.setText(SmileyText, ':)')
		elif SlipLimitMid < CurSlipValue < SlipLimitHigh:
			ac.setText(SmileyText, ':D')
		elif CurSlipValue >= SlipLimitHigh:
			ac.setText(SmileyText, ':O')
		else:
			ac.setText(SmileyText, ':|')
		SmileyTimer = 0
	else:
		SmileyTimer += deltaT

	# Slip value output section.
	CurLapCount = ac.getCarState(0, acsys.CS.LapCount)
	
	if WriteToFile:
		# Remove old output file at initial load.
		if not IsFileReset:
			open(OutputFile, 'w').close()
			IsFileReset = 1
				
		# Write to file if lap has changed.
		if CurLapCount > CurLap:
			f = open(OutputFile, 'a')
			f.write(SlipValues)
			f.close()
			SlipValues = ''		# remove written data from memory.
			CurLap = CurLap + 1
		else:
			# Ignore small slip values, can be changed.
			if CurSlipValue > 75:
				SlipValues += str(CurSlipValue) + ','