Add screen blackout to qchess

Just because it bugged [BOB] that the screen never went to sleep when using qchess_login.sh
Aren't I nice?

qchess/data/help.txt

@@ -103,6 +103,14 @@ OPTIONS
 		If no time is given, the timeout is disabled.
 
 		By default the timeout is disabled.
+		
+	--blackout[=time]
+		Setting a blackout time will cause the display to become black if the mouse is not moved and no keys or buttons are pressed.
+		If no time is given, the blackout time is disabled.
+		
+		By default the blackout is disabled.
+		
+		This switch was introduced for entirely obscure purposes.
 
 	--classical
 		If this option is used, the game will treat pieces "classically", ie: as in standard chess.

qchess/qchess.py

@@ -1877,6 +1877,7 @@ try:
 except:
 	graphics_enabled = False
 	
+import time
 
 
 
@@ -1897,12 +1898,14 @@ class GraphicsThread(StoppableThread):
 		self.error = 0
 		self.lock = threading.RLock()
 		self.cond = threading.Condition()
+		self.sleep_timeout = None
+		self.last_event = time.time()
 
 		#print "Test font"
 		pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), 32).render("Hello", True,(0,0,0))
 
 		#load_images()
-		create_images(grid_sz)
+		load_images()
 
 		"""
 		for c in images.keys():
@@ -1920,18 +1923,24 @@ class GraphicsThread(StoppableThread):
 		
 		while not self.stopped():
 			
-			#print "Display grid"
-			self.board.display_grid(window = self.window, grid_sz = self.grid_sz) # Draw the board
+			if self.sleep_timeout == None or (time.time() - self.last_event) < self.sleep_timeout:
+			
+				#print "Display grid"
+				self.board.display_grid(window = self.window, grid_sz = self.grid_sz) # Draw the board
 
-			#print "Display overlay"
-			self.overlay()
+				#print "Display overlay"
+				self.overlay()
 
-			#print "Display pieces"
-			self.board.display_pieces(window = self.window, grid_sz = self.grid_sz) # Draw the board		
+				#print "Display pieces"
+				self.board.display_pieces(window = self.window, grid_sz = self.grid_sz) # Draw the board		
+				
+			else:
+				self.window.fill((0,0,0))
 
 			pygame.display.flip()
 
 			for event in pygame.event.get():
+				self.last_event = time.time()
 				if event.type == pygame.QUIT or (event.type == pygame.KEYDOWN and event.key == pygame.K_q):
 					if isinstance(game, GameThread):
 						with game.lock:
@@ -1944,8 +1953,11 @@ class GraphicsThread(StoppableThread):
 					break
 				elif event.type == pygame.MOUSEBUTTONDOWN:
 					self.mouse_down(event)
+					
 				elif event.type == pygame.MOUSEBUTTONUP:
-					self.mouse_up(event)
+					self.mouse_up(event)			
+				
+				
 					
 
 				
@@ -2329,6 +2341,7 @@ import os
 import time
 
 turn_delay = 0.5
+sleep_timeout = None
 [game, graphics] = [None, None]
 
 def make_player(name, colour):
@@ -2381,6 +2394,7 @@ def main(argv):
 	global src_file
 	global graphics_enabled
 	global always_reveal_states
+	global sleep_timeout
 
 	max_moves = None
 	src_file = None
@@ -2462,6 +2476,12 @@ def main(argv):
 				agent_timeout = -1
 			else:
 				agent_timeout = float(arg[2:].split("=")[1])
+		elif (arg[1] == '-' and arg[2:].split("=")[0] == "blackout"):
+			# Screen saver delay
+			if len(arg[2:].split("=")) == 1:
+				sleep_timeout = -1
+			else:
+				sleep_timeout = float(arg[2:].split("=")[1])
 				
 		elif (arg[1] == '-' and arg[2:] == "help"):
 			# Help
@@ -2501,6 +2521,8 @@ def main(argv):
 	if graphics_enabled == True:
 		try:
 			graphics = GraphicsThread(game.board, grid_sz = [64,64]) # Construct a GraphicsThread!
+			
+			graphics.sleep_timeout = sleep_timeout
 
 		except Exception,e:
 			graphics = None
@@ -2607,4 +2629,4 @@ if __name__ == "__main__":
 		sys.exit(102)
 
 # --- main.py --- #
-# EOF - created from make on Thu Mar 14 22:36:37 WST 2013
+# EOF - created from make on Tue Mar 19 07:36:32 WST 2013

qchess/src/graphics.py

@@ -4,6 +4,7 @@ try:
 except:
 	graphics_enabled = False
 	
+import time
 
 
 
@@ -24,6 +25,8 @@ class GraphicsThread(StoppableThread):
 		self.error = 0
 		self.lock = threading.RLock()
 		self.cond = threading.Condition()
+		self.sleep_timeout = None
+		self.last_event = time.time()
 
 		#print "Test font"
 		pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), 32).render("Hello", True,(0,0,0))
@@ -47,18 +50,24 @@ class GraphicsThread(StoppableThread):
 		
 		while not self.stopped():
 			
-			#print "Display grid"
-			self.board.display_grid(window = self.window, grid_sz = self.grid_sz) # Draw the board
+			if self.sleep_timeout == None or (time.time() - self.last_event) < self.sleep_timeout:
+			
+				#print "Display grid"
+				self.board.display_grid(window = self.window, grid_sz = self.grid_sz) # Draw the board
 
-			#print "Display overlay"
-			self.overlay()
+				#print "Display overlay"
+				self.overlay()
 
-			#print "Display pieces"
-			self.board.display_pieces(window = self.window, grid_sz = self.grid_sz) # Draw the board		
+				#print "Display pieces"
+				self.board.display_pieces(window = self.window, grid_sz = self.grid_sz) # Draw the board		
+				
+			else:
+				self.window.fill((0,0,0))
 
 			pygame.display.flip()
 
 			for event in pygame.event.get():
+				self.last_event = time.time()
 				if event.type == pygame.QUIT or (event.type == pygame.KEYDOWN and event.key == pygame.K_q):
 					if isinstance(game, GameThread):
 						with game.lock:
@@ -71,8 +80,11 @@ class GraphicsThread(StoppableThread):
 					break
 				elif event.type == pygame.MOUSEBUTTONDOWN:
 					self.mouse_down(event)
+					
 				elif event.type == pygame.MOUSEBUTTONUP:
-					self.mouse_up(event)
+					self.mouse_up(event)			
+				
+				
 					
 
 				

qchess/src/main.py

@@ -16,6 +16,7 @@ import os
 import time
 
 turn_delay = 0.5
+sleep_timeout = None
 [game, graphics] = [None, None]
 
 def make_player(name, colour):
@@ -68,6 +69,7 @@ def main(argv):
 	global src_file
 	global graphics_enabled
 	global always_reveal_states
+	global sleep_timeout
 
 	max_moves = None
 	src_file = None
@@ -149,6 +151,12 @@ def main(argv):
 				agent_timeout = -1
 			else:
 				agent_timeout = float(arg[2:].split("=")[1])
+		elif (arg[1] == '-' and arg[2:].split("=")[0] == "blackout"):
+			# Screen saver delay
+			if len(arg[2:].split("=")) == 1:
+				sleep_timeout = -1
+			else:
+				sleep_timeout = float(arg[2:].split("=")[1])
 				
 		elif (arg[1] == '-' and arg[2:] == "help"):
 			# Help
@@ -188,6 +196,8 @@ def main(argv):
 	if graphics_enabled == True:
 		try:
 			graphics = GraphicsThread(game.board, grid_sz = [64,64]) # Construct a GraphicsThread!
+			
+			graphics.sleep_timeout = sleep_timeout
 
 		except Exception,e:
 			graphics = None

qchess_login.sh

 #!/bin/bash
 
 # Qchess login script
+# Forces people to play Quantum Chess in order to login to a UCC clubroom machine
+# (unless they work out that they can just press 'Q')
+
 # Only works with GDM
 # WARNING: Don't use on systems without GDM, because it will probably break everything
+# NOTE: If you have users that never log out (ie: lock the screen instead), this won't be very effective
+
 # Add to root's crontab to run every minute
 
 # Check qchess isn't already running
@@ -31,7 +36,10 @@ win="black"
 
 #espeak "I challenge you to a duel!"
 while [ "$win" == "black" ]; do
-	win=$(./qchess.py @human @internal:AgentBishop)
+	# The game prevents the screen from sleeping automatically...
+	# The blackout option makes the game screen go black if no events happen
+	# It works on clownfish (OpenSUSE); the game is fullscreen. But not cabellera (Scientific Linux); the game isn't fullscreen
+	win=$(./qchess.py --blackout=600 @human @internal:AgentBishop)
 done
 
 #if [ "$win" == "white" ]; then