From 321cafa714e582dbff9518f288487cd4cd66a086 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Sun, 28 Jan 2007 03:36:33 +0000
Subject: [PATCH] updated this script (one of the most out of date)

basic workings are the same but its generaly more efficient.

The main problem was it could get the data from every object across all scenes!
This means that on framechange, every mesh would be copied into an NMesh just to see the type was a camera.
---
 release/scripts/camera_changer.py | 79 ++++++++++++++++---------------
 1 file changed, 40 insertions(+), 39 deletions(-)

diff --git a/release/scripts/camera_changer.py b/release/scripts/camera_changer.py
index 0485f54a46e..7ae1bd64c8c 100644
--- a/release/scripts/camera_changer.py
+++ b/release/scripts/camera_changer.py
@@ -74,47 +74,48 @@ import Blender
 from Blender import *
 import string
 
-sc=Scene.GetCurrent()
+header = '# camera.py 1.3 scriptlink'
 
-#import du texte
-lestext=Blender.Text.Get()
-Ntexts=[]
-for txt in lestext:
-	Ntexts.append(txt.getName())
-ecrire=0
+camera_change_scriptlink = header + \
+'''
+import Blender
+def main():
+	scn = Blender.Scene.GetCurrent()
+	frame = str(Blender.Get('curframe'))
 
-if 'camera.py' not in Ntexts:
-	ecrire=1
-else :
-	if lestext[Ntexts.index('camera.py')].asLines()[0] != "# camera.py 1.2 link python #":
-		reecrire=Blender.Draw.PupMenu("WARNING: Text camera.py already exists but is outdated%t|Overwrite|Rename old version text")
-		if reecrire == 1:
-			Text.unlink(lestext[Ntexts.index('camera.py')])
-			ecrire=1
-		if reecrire == 2:
-			lestext[Ntexts.index('camera.py')].name="old_camera.txt"
-			ecrire=1
+	# change the camera if it has the current frame
+	for ob_cam in [ob for ob in scn.objects if ob.type == 'Camera']:
+		for number in ob_cam.name.split(','):
+			if number == frame:
+				scn.setCurrentCamera(ob_cam)
+				return
+main()
+'''
 
+def main():
+	
+	# Get the text
+	try:	cam_text = Blender.Text.Get('camera.py')
+	except:	cam_text = None
+	
+	if cam_text:
+		if cam_text.asLines()[0] != header:
+			ret = Blender.Draw.PupMenu("WARNING: An old camera.py exists%t|Overwrite|Rename old version text")
+			if ret == -1:			return # EXIT DO NOTHING
+			elif ret == 1:		Text.unlink(cam_text)
+			elif ret == 2:		cam_text.name = 'old_camera.txt'
+			cam_text = None
 
+	if not cam_text:
+		scripting=Blender.Text.New('camera.py')
+		scripting.write(camera_change_scriptlink)
+	
+	scn=Scene.GetCurrent()
+	scriptlinks = scn.getScriptLinks('FrameChanged')
+	if not scriptlinks or ('camera.py' not in scriptlinks):
+		scn.addScriptLink('camera.py','FrameChanged')
+		Blender.Draw.PupMenu('FrameChange Scriptlink Added%t|Name camera objects to their activation frame numbers(s) seperated by commas|valid names are "1,10,46" or "1,10,200" or "200" (without quotation marks)')
+		Blender.Window.RedrawAll()
 
-if ecrire == 1:
-	scripting=Blender.Text.New('camera.py')
-	scripting.write("# camera.py 1.2 link python #\nimport Blender\nfrom Blender import *\nfrom math import *\nimport string\n")
-	scripting.write("sc=Scene.GetCurrent()\n#Changement camera\nlescam=[]\nobjets=Blender.Object.Get()\n")
-	scripting.write("for ob in objets:\n	if type(ob.getData())==Blender.Types.CameraType:\n		try:")
-	scripting.write("\n			lesfram=string.split(ob.name,',')\n			for fr in lesfram:\n				lescam.append(ob.name)\n				lescam.append(int(fr))\n		except:\n			pass")
-	scripting.write("\nframe = Blender.Get('curframe')\nif frame in lescam:\n	nom=lescam.index(frame)\n	sc.setCurrentCamera(Blender.Object.Get(lescam[nom-1]))\n")
-
-
-#Linkage
-list=[]
-try:
-	for script in sc.getScriptLinks('FrameChanged'):
-		list.append(script)
-except:
-	pass
-if 'camera.py' not in list:
-	sc.addScriptLink('camera.py','FrameChanged')
-	Blender.Draw.PupMenu("Done! Remember:%t|Name cameras as (a comma separated list of) their activation frame number(s)")
-	Blender.Redraw(-1)
-
+if __name__ == '__main__':
+	main()
\ No newline at end of file