def update( self ):
# find the ball
ball_entity = Entity.find_entity( "ball" )
if ball == None:
raise ValueError( "No ball entity" )
# see if it's out of bounds
ball_position = ball_entity.data[ 'position' ]
if \
ball_position >= -self.half_size and \
ball_position <= self.half_size:
# ball still in play
return
if ball_position < -self.half_size:
# out of bounds
print "Ball out of bounds on left"
self.entity.data[ 'right_score' ] += 1
if ball_position > self.half_size:
# out of bounds
print "Ball out of bounds on right"
self.entity.data[ 'left_score' ] += 1
self.entity.data[ 'games' ] += 1
# serve the ball
ball_contact = ball_entity.find_component(
ball.BallContactComponent.type
)
ball_contact.serve()
def create():
entity = Entity( "ball" )
entity.add_component(
BallMovementComponent( 'movement' )
)
entity.add_component(
BallContactComponent( 'contact' )
)
entity.data[ 'position' ] = 0.0
entity.data[ 'velocity' ] = 0.0
return entity
def create( half_size ):
entity = Entity( "table" )
entity.add_component(
BallCheckComponent( 'ball_check', half_size )
)
entity.data[ 'left_score' ] = 0
entity.data[ 'right_score' ] = 0
entity.data[ 'games' ] = 0
return entity
def update( self ):
# find the ball
ball_entity = Entity.find_entity( "ball" )
if ball == None:
raise ValueError( "No ball entity" )
# see if it's within our hit distance
ball_position = ball_entity.data[ 'position' ]
bat_position = self.entity.data[ 'position' ]
hit_distance = self.entity.data[ 'hit_distance' ]
max_distance = bat_position + hit_distance
min_distance = bat_position - hit_distance
if \
ball_position > max_distance or \
ball_position < min_distance:
# ball is too far away
# do nothing
return
# see if it's coming in our direction
# simply compare velocity direction with bat
# position and assume only 2 bats
# not the best component but its just an example
ball_velocity = ball_entity.data[ 'velocity' ]
if \
ball_velocity < 0.0 and \
bat_position > 0.0:
# heading away
return
if \
ball_velocity > 0.0 and \
bat_position < 0.0:
# heading away
return
# hit it!
bat_hit = self.entity.find_component(
BatHitComponent.type
)
if bat_hit == None:
raise ValueError( "No bat hit component" )
# hit the ball
bat_hit.hit_ball()
def create( name, position, hit_distance, hit_chance, sleep_time ):
entity = Entity( name )
entity.add_component(
BatPositionComponent( 'position' )
)
entity.add_component(
BatHitComponent(
'hit',
sleep_time,
hit_chance
)
)
entity.data[ 'position' ] = position
entity.data[ 'hit_distance' ] = hit_distance
return entity
def hit_ball( self ):
# see if we can hit yet
if self.last_hit > 0:
# we already tried to hit it
# don't continue
return
# set our last hit to our sleep time
# this stops us taking unlimited hits
self.last_hit = self.sleep_time
# roll a dice and see if we hit it or not
chance = random.random()
if chance > self.hit_chance:
# we've missed
print "%s missed the ball!" % self.entity.name
return
# find the ball
ball_entity = Entity.find_entity( "ball" )
if ball == None:
raise ValueError( "No ball entity" )
ball_contact = ball_entity.find_component(
ball.BallContactComponent.type
)
if ball_contact == None:
raise ValueError( "No ball contact component" )
velocity = random.random()
position = self.entity.data[ 'position' ]
if position > 0.0:
velocity *= -1.0
ball_contact.hit( velocity )
print "%s hit the ball!" %self.entity.name
# begin playing
print "Playing to %i" % games_to_play
# serve the ball
ball_contact = ball_entity.find_component(ball.BallContactComponent.type)
if ball_contact == None:
raise ValueError("No ball contact component")
ball_contact.serve()
# keep playing until the game is over
while True:
Entity.update_entities()
if table_entity.data["games"] >= games_to_play:
break
# print final score
print "Final score"
player1_score = table_entity.data["left_score"]
player2_score = table_entity.data["right_score"]
print "Player 1: %i" % player1_score
print "Player 2: %i" % player2_score
if player1_score > player2_score:
print "Player 1 Wins!"
elif player1_score < player2_score:
print "Player 2 Wins!"