def perform(self, time):
"""
Morph line into real collideable figure.
"""
#Define geometry and time data
actor = self.master.owner
v1 = actor.b2body.GetLocalPoint(pixels_to_tiles((self.start.x, self.start.y)))
v2 = actor.b2body.GetLocalPoint(pixels_to_tiles((self.end.x, self.end.y)))
if v2.x <= v1.x:
v1, v2 = v2, v1
vlen = math.sqrt((v2.x-v1.x)*(v2.x-v1.x)+(v2.y-v1.y)*(v2.y-v1.y))
vcent = ((v1.x+v2.x)/2.0, (v1.y+v2.y)/2.0)
vangle = math.asin((v2.y-v1.y)/vlen)
v = self.end - self.start
start = gm.Point2(self.start.x, self.start.y)
self.trace = gm.LineSegment2(start, v)
self.cshape = shape_to_cshape(self.trace)
self.set_time_to_complete(time)
self.b2fixture = actor.b2body.CreateFixture(b2.b2FixtureDef(shape=b2.b2PolygonShape(box=(vlen, 0,
vcent, vangle)),
isSensor=True, userData=self))
self.b2fixture.filterData.categoryBits = B2SWING
self.b2fixture.filterData.maskBits = B2HITZONE | B2SWING | B2BODYPART
actor.world.addEventHandler(self.b2fixture, self.on_begin_contact, self.on_end_contact)
self.schedule(self.update)
def b2drop(self):
self.cshape.center = eu.Vector2(self.position[0], self.position[1])
rx, ry = pixels_to_tiles((self.cshape.rx, self.cshape.ry))
self.b2body.CreateFixture(b2.b2FixtureDef(shape=b2.b2PolygonShape(box=(rx, ry)), userData=self))
self.b2body.fixtures[-1].filterData.categoryBits = B2ITEM
self.b2body.fixtures[-1].filterData.maskBits = B2LEVEL
self.b2body.fixtures[-1].friction = 10
x, y = pixels_to_tiles((self.cshape.center.x, self.cshape.center.y))
self.b2body.position = (x, y)
self.b2body.linearVelocity.x = self.master.b2body.linearVelocity.x + pixels_to_tiles(randint(-500, 500))
self.b2body.linearVelocity.y = self.master.b2body.linearVelocity.y + pixels_to_tiles(randint(-100, 100))
def setup_b2body(self):
super(Hit_Zone, self).setup_b2body()
cshape = self.cshape
hit_shape = self.hit_shape
img = self.image
if hit_shape is RECTANGLE:
rx, ry = pixels_to_tiles((cshape.rx, cshape.ry))
self.b2body.CreateFixture(b2.b2FixtureDef(shape=b2.b2PolygonShape(box=(rx, ry)), isSensor=True,
userData=self))
elif hit_shape is LINE:
r = pixels_to_tiles(img.width/2.0)
self.b2body.CreateFixture(b2.b2FixtureDef(shape=b2.b2PolygonShape(box=(r, 0)),
isSensor=True, userData=self))
self.b2body.gravityScale = 0
self.b2body.fixtures[-1].filterData.categoryBits = B2HITZONE
self.b2body.fixtures[-1].filterData.maskBits = B2HITZONE | \
B2SWING | B2LEVEL | B2BODYPART
self.world.addEventHandler(self.b2body.fixtures[-1], self.on_begin_contact, self.on_end_contact)
def move_to(self, x, y):
"""
Place Actor to x, y.
"""
old = self.cshape.center.copy()
vec = eu.Vector2(int(x), int(y))
self.position = vec
self.cshape.center = vec
self.b2body.position = pixels_to_tiles((vec.x, vec.y))
def __init__(self, img, cshape=None, position=(0, 0), vertical_speed=0.0, horizontal_speed=0.0):
super(Movable_Object, self).__init__(img, position)
self.image = img
self.cshape = cshape
if cshape:
self.cshape.center = eu.Vector2(*position)
self.b2body = None
self.setup_b2body()
self.b2body.linearVelocity = pixels_to_tiles((horizontal_speed, vertical_speed))
self.b2body.position = position
self.ground_count = 0
self.on_ground = False
