Python oncePerStep Examples

Example #1

File: ontology_comments.py Project: lcary/RC_RL

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])

Example #2

File: ontology.py Project: vladfi1/py-vgdl

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])

Example #3

File: ontology.py Project: vladfi1/py-vgdl

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

Example #4

File: ontology.py Project: xjzpguob/py-vgdl

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

Example #5

File: ontology_comments.py Project: lcary/RC_RL

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)

Example #6

File: ontology.py Project: vladfi1/py-vgdl

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)