Execute Dat Frame Start issue

General TouchDesigner Discussion
1

Hi, I have a strange behavior with my execute Dat. I run it every frame to get position form a Kinect. It works perfectly except when I lunch TouchDesigner. I have to manually change a value and then save again to make it works.

Player1_x = op('Kinect/output_spine_x')['p1/spine:tx']
Player2_x = op('Kinect/output_spine_x')['p2/spine:tx']
Player3_x = op('Kinect/output_spine_x')['p3/spine:tx']
Player4_x = op('Kinect/output_spine_x')['p4/spine:tx']
Player5_x = op('Kinect/output_spine_x')['p5/spine:tx']
Player6_x = op('Kinect/output_spine_x')['p6/spine:tx']

players_x = [Player1_x, Player2_x, Player3_x, Player4_x, Player5_x, Player6_x]

Player1_z = op('Kinect/output_spine_z')['p1/spine:tz']
Player2_z = op('Kinect/output_spine_z')['p2/spine:tz']
Player3_z = op('Kinect/output_spine_z')['p3/spine:tz']
Player4_z = op('Kinect/output_spine_z')['p4/spine:tz']
Player5_z = op('Kinect/output_spine_z')['p5/spine:tz']
Player6_z = op('Kinect/output_spine_z')['p6/spine:tz']

players_z = [Player1_z, Player2_z, Player3_z, Player4_z, Player5_z, Player6_z]

p1_pos_id = 0
p2_pos_id = 0
p3_pos_id = 0
p4_pos_id = 0
p5_pos_id = 0
p6_pos_id = 0

players_pos_id = [p1_pos_id, p2_pos_id, p3_pos_id, p4_pos_id, p5_pos_id, p6_pos_id]

p_detect1 = op('Kinect/output_id')['p1/id']
p_detect2 = op('Kinect/output_id')['p2/id']
p_detect3 = op('Kinect/output_id')['p3/id']
p_detect4 = op('Kinect/output_id')['p4/id']
p_detect5 = op('Kinect/output_id')['p5/id']
p_detect6 = op('Kinect/output_id')['p6/id']

players_detection = [p_detect1, p_detect2, p_detect3, p_detect4, p_detect5, p_detect6]

index_G = op('ecran_G/ecran_Jeu_G/null1')['index'] 
index_C = op('ecran_C/ecran_Jeu_C/null1')['index'] 
index_D = op('ecran_D/ecran_Jeu_D/null1')['index']
index_transition_G = op('ecran_G/ecran_Jeu_G/null2')['index']
index_transition_C = op('ecran_C/ecran_Jeu_C/null2')['index']
index_transition_D = op('ecran_D/ecran_Jeu_D/null2')['index']
lenght = 1334
lenght_transition = 117


def onFrameStart(frame):
	leftOn = False
	centerOn = False
	rightOn = False
	

	# Players ID
	for i in range(len(players_x)) :
		
		if players_detection[i] != 0 and players_z[i] < 5.0 : # <- inscrire la distance maximum en z ici
			if players_x[i] <=0.33 :
				players_pos_id[i] = 1

			elif players_x[i] > 0.33 and players_x[i] <= 0.66 :
				players_pos_id[i] = 2

			elif players_x[i] > 0.66 :
				players_pos_id[i] = 3
				
			# conditions
			if players_pos_id[i] == 1 :
				leftOn = True

			if players_pos_id[i] == 2 :
				centerOn = True

			if players_pos_id[i] == 3 :
				rightOn = True
		
	# -------------- LEFT --------------- #
	# ----- ON ----- #
	if leftOn :
		op('ecran_G/ecran_Jeu_G/playback').par.value0  = 60
		op('ecran_G/ecran_Veille_G/On_Off').par.value0 = 0
		op('ecran_G/ecran_Veille_G/BG_alpha').par.value0 = 0
		op('ecran_G/ecran_Veille_G/aspiration').par.value0 = 25

		if index_G == lenght -1 :
			op('ecran_G/ecran_Jeu_G/limit1').par.min = 0

		if index_transition_G > lenght_transition   :
			op('ecran_G/ecran_Jeu_G/playback_transition').par.value0  = 0
		else :
			op('ecran_G/ecran_Jeu_G/playback_transition').par.value0  = 60


	# ----- OFF ----- #
	else :
		op('ecran_G/ecran_Veille_G/On_Off').par.value0 = 0.4
		op('ecran_G/ecran_Veille_G/BG_alpha').par.value0 = 1
		op('ecran_G/ecran_Veille_G/aspiration').par.value0 = 2
		op('ecran_G/ecran_Jeu_G/limit1').par.min = 0
		
		if  op('ecran_G/ecran_Jeu_G/null3')['vitesse'] < 3 :
			op('ecran_G/ecran_Jeu_G/playback').par.value0  = 0

		else :
			op('ecran_G/ecran_Jeu_G/playback').par.value0 = -60

		if index_transition_G < 3  :
			op('ecran_G/ecran_Jeu_G/playback_transition').par.value0  = 0
		else :
			op('ecran_G/ecran_Jeu_G/playback_transition').par.value0  = -60


	# -------------- CENTER ---------------- #
	# ----- ON ----- #
	if centerOn :
		op('ecran_C/ecran_Jeu_C/playback').par.value0  = 60
		op('ecran_C/ecran_Veille_C/On_Off').par.value0 = 0
		op('ecran_C/ecran_Veille_C/BG_alpha').par.value0 = 0
		op('ecran_C/ecran_Veille_C/aspiration').par.value0 = 25

		if index_C == lenght -1 :
			op('ecran_C/ecran_Jeu_C/limit1').par.min = 0

		if index_transition_C > lenght_transition  :
			op('ecran_C/ecran_Jeu_C/playback_transition').par.value0  = 0
		else :
			op('ecran_C/ecran_Jeu_C/playback_transition').par.value0  = 60

	# ----- OFF ----- #
	else :
		op('ecran_C/ecran_Veille_C/On_Off').par.value0 = 0.4
		op('ecran_C/ecran_Veille_C/BG_alpha').par.value0 = 1
		op('ecran_C/ecran_Veille_C/aspiration').par.value0 = 2
		op('ecran_C/ecran_Jeu_C/limit1').par.min = 0

		if  op('ecran_C/ecran_Jeu_C/null3')['vitesse'] < 3 :
			op('ecran_C/ecran_Jeu_C/playback').par.value0  = 0

		else : 
			op('ecran_C/ecran_Jeu_C/playback').par.value0 = -60

		if index_transition_C < 3  :
			op('ecran_C/ecran_Jeu_C/playback_transition').par.value0  = 0
		else :
			op('ecran_C/ecran_Jeu_C/playback_transition').par.value0  = -60
			

	# -------------- RIGHT ---------------- #
	# ----- ON ----- #
	if rightOn :
		op('ecran_D/ecran_Jeu_D/playback').par.value0  = 60
		op('ecran_D/ecran_Veille_D/On_Off').par.value0 = 0
		op('ecran_D/ecran_Veille_D/BG_alpha').par.value0 = 0
		op('ecran_D/ecran_Veille_D/aspiration').par.value0 = 25

		if index_D == lenght -1 :
			op('ecran_D/ecran_Jeu_D/limit1').par.min = 0

		if index_transition_D > lenght_transition  :
			op('ecran_D/ecran_Jeu_D/playback_transition').par.value0  = 0
		else :
			op('ecran_D/ecran_Jeu_D/playback_transition').par.value0  = 60


	# ----- OFF ----- #
	else :
		op('ecran_D/ecran_Veille_D/On_Off').par.value0 = 0.4
		op('ecran_D/ecran_Veille_D/BG_alpha').par.value0 = 1
		op('ecran_D/ecran_Veille_D/aspiration').par.value0 = 2
		op('ecran_D/ecran_Jeu_D/limit1').par.min = 0

		if  op('ecran_D/ecran_Jeu_D/null3')['vitesse'] < 3 :
			op('ecran_D/ecran_Jeu_D/playback').par.value0  = 0

		else :
			op('ecran_D/ecran_Jeu_D/playback').par.value0  = -60

		if index_transition_D < 3 :
			op('ecran_D/ecran_Jeu_D/playback_transition').par.value0  = 0
		else :
			op('ecran_D/ecran_Jeu_D/playback_transition').par.value0  = -60
			
	return

It says : cannot find function named : OnFrameStart as an error on my script.

Do you have any way to make this work without having to change it manually?

Thanks

2

The code is only compiled once, (or when text changes), so it may be an order issue.
Looks like its failing to compile on startup.
Perhaps the ops aren’t loaded yet.

It’s less efficient, but does it at least work if you move that code inside the callback?

If so, you could explore options of using storage (and especially startup values) to set up those objects the first time its called.

docs.derivative.ca/OP_Class#Storage

Cheers,
Rob.