1.1 --- a/game.py	Sat Dec 18 06:14:15 2010 +0300
     1.2 +++ b/game.py	Sat Dec 18 13:23:48 2010 +0300
     1.3 @@ -5,13 +5,21 @@
     1.4  		self.width = width
     1.5  		self.height = height
     1.6  
     1.7 -        def step():
     1.8 -		pass
     1.9 +	def step(game):
    1.10 +		game.next_positions()
    1.11 +		game.check_collisions()
    1.12 +		game.check_walls()
    1.13 +		game.update_positions()
    1.14 +		game.invoke_ticks()
    1.15 +		game.respawn()
    1.16  
    1.17 -	def next_positions():
    1.18 -		pass
    1.19 +	def next_positions(game):
    1.20 +		delta_t = 1
    1.21 +		for i in game.bodies:
    1.22 +			i.next_position = i.position + i.velocity.mul_v(delta_t)
    1.23  	
    1.24 -	def check_collisions():
    1.25 +
    1.26 +	def check_collisions(game):
    1.27  		pass
    1.28  
    1.29  		def collides(body1,body2):
    1.30 @@ -20,15 +28,23 @@
    1.31  		def handle_collision(body1,body2):
    1.32  			pass
    1.33  
    1.34 -	def check_walls():
    1.35 -		pass
    1.36 +	def check_walls(game):
    1.37 +		for i in game.bodies :
    1.38 +			if (i.next_position.x <= 0) or (i.next_position.y <= 0) or (i.next_position.x <= width) or (i.next_position.y >= game.height) :
    1.39 +				i.on_wall()
    1.40 +		
    1.41  
    1.42 -	def update_positions():
    1.43 -		pass
    1.44 +	def update_positions(game):
    1.45 +		for i in game.bodies:
    1.46 +			i.position = i.next_position
    1.47  
    1.48 -	def invoke_ticks():
    1.49 +	def invoke_ticks(game):
    1.50  		pass
    1.51  	
    1.52 -	def respawn():
    1.53 -		pass 
    1.54 -		
    1.55 \ No newline at end of file
    1.56 +	def respawn(game):                     
    1.57 +		for i in game.users :
    1.58 +			if i.tank.strength == 0 :
    1.59 +				i.tank.respawn()
    1.60 +
    1.61 +
    1.62 + 
    1.63 \ No newline at end of file