def wallBounce(sprite, partner, game, friction=0): # FLAG
""" Bounce off orthogonally to the wall. """
if not oncePerStep(sprite, game, 'lastbounce'):
return
sprite.speed *= (1. - friction)
stepBack(sprite, partner, game)
if abs(sprite.rect.centerx - partner.rect.centerx) > abs(sprite.rect.centery - partner.rect.centery):
sprite.orientation = (-sprite.orientation[0], sprite.orientation[1])
else:
sprite.orientation = (sprite.orientation[0], -sprite.orientation[1])
def wallBounce(sprite, partner, game, friction=0):
""" Bounce off orthogonally to the wall. """
if not oncePerStep(sprite, game, 'lastbounce'):
return
sprite.speed *= (1. - friction)
stepBack(sprite, partner, game)
if abs(sprite.rect.centerx - partner.rect.centerx) > abs(sprite.rect.centery - partner.rect.centery):
sprite.orientation = (-sprite.orientation[0], sprite.orientation[1])
else:
sprite.orientation = (sprite.orientation[0], -sprite.orientation[1])
def pullWithIt(sprite, partner, game):
""" The partner sprite adds its movement to the sprite's. """
if not oncePerStep(sprite, game, 'lastpull'):
return
tmp = sprite.lastrect
v = unitVector(partner.lastdirection)
sprite._updatePos(v, partner.speed * sprite.physics.gridsize[0])
if isinstance(sprite.physics, ContinuousPhysics):
sprite.speed = partner.speed
sprite.orientation = partner.lastdirection
sprite.lastrect = tmp
def pullWithIt(sprite, partner, game):
""" The partner sprite adds its movement to the sprite's. """
if not oncePerStep(sprite, game, 'lastpull'):
return
tmp = sprite.lastrect
v = unitVector(partner.lastdirection)
sprite._updatePos(v, partner.speed * sprite.physics.gridsize[0])
if isinstance(sprite.physics, ContinuousPhysics):
sprite.speed = partner.speed
sprite.orientation = partner.lastdirection
sprite.lastrect = tmp
def wallStop(sprite, partner, game, friction=0): # FLAG
""" Stop just in front of the wall, removing that velocity component,
but possibly sliding along it. """
if not oncePerStep(sprite, game, 'laststop'):
return
stepBack(sprite, partner, game)
if abs(sprite.rect.centerx - partner.rect.centerx) > abs(sprite.rect.centery - partner.rect.centery):
sprite.orientation = (0, sprite.orientation[1] * (1. - friction))
else:
sprite.orientation = (sprite.orientation[0] * (1. - friction), 0)
sprite.speed = vectNorm(sprite.orientation) * sprite.speed
sprite.orientation = unitVector(sprite.orientation)
def wallStop(sprite, partner, game, friction=0):
""" Stop just in front of the wall, removing that velocity component,
but possibly sliding along it. """
if not oncePerStep(sprite, game, 'laststop'):
return
stepBack(sprite, partner, game)
if abs(sprite.rect.centerx - partner.rect.centerx) > abs(sprite.rect.centery - partner.rect.centery):
sprite.orientation = (0, sprite.orientation[1] * (1. - friction))
else:
sprite.orientation = (sprite.orientation[0] * (1. - friction), 0)
sprite.speed = vectNorm(sprite.orientation) * sprite.speed
sprite.orientation = unitVector(sprite.orientation)
