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#!/usr/bin/python
#
# C++ version Copyright (c) 2006-2007 Erin Catto http://www.gphysics.com
# Python version Copyright (c) 2008 kne / sirkne at gmail dot com
#
# Implemented using the pybox2d SWIG interface for Box2D (pybox2d.googlecode.com)
#
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
from test_main import *
from test_main import fwContactTypes
import math
import pprint
pp = pprint.PrettyPrinter(indent=4)
# Contributed by caspin (C++ version)
class ContactCallbackTest (Framework):
name="ContactCallbackTest"
ball=None
bullet=None
ball_shape=None
_pickle_vars = ['ball', 'bullet', 'ball_shape']
def __init__(self):
super(ContactCallbackTest, self).__init__()
groundBody = self.world.GetGroundBody()
sd=box2d.b2PolygonDef()
sd.friction = 0
sd.vertices = [(10.0, 10.0), (9.0, 7.0), (10.0, 0.0)]
sd.userData = 1
groundBody.CreateShape(sd)
sd.vertices = [(9.0, 7.0), (8.0, 0.0), (10.0, 0.0)]
sd.userData = 2
groundBody.CreateShape(sd)
sd.vertices = [(9.0, 7.0), (8.0, 5.0), (8.0, 0.0)]
sd.userData = 3
groundBody.CreateShape(sd)
sd.vertices = [(8.0, 5.0), (7.0, 4.0), (8.0, 0.0)]
sd.userData = 4
groundBody.CreateShape(sd)
sd.vertices = [(7.0, 4.0), (5.0, 0.0), (8.0, 0.0)]
sd.userData = 5
groundBody.CreateShape(sd)
sd.vertices = [(7.0, 4.0), (5.0, 3.0), (5.0, 0.0)]
sd.userData = 6
groundBody.CreateShape(sd)
sd.vertices = [(5.0, 3.0), (2.0, 2.0), (5.0, 0.0)]
sd.userData = 7
groundBody.CreateShape(sd)
sd.vertices = [(2.0, 2.0), (0.0, 0.0), (5.0, 0.0)]
sd.userData = 8
groundBody.CreateShape(sd)
sd.vertices = [(2.0, 2.0), (-2.0, 2.0), (0.0, 0.0)]
sd.userData = 9
groundBody.CreateShape(sd)
sd.vertices = [(-5.0, 0.0), (0.0, 0.0), (-2.0, 2.0)]
sd.userData = 10
groundBody.CreateShape(sd)
sd.vertices = [(-5.0, 0.0), (-2.0, 2.0), (-5.0, 3.0)]
sd.userData = 11
groundBody.CreateShape(sd)
sd.vertices = [(-5.0, 0.0), (-5.0, 3.0), (-7.0, 4.0)]
sd.userData = 12
groundBody.CreateShape(sd)
sd.vertices = [(-8.0, 0.0), (-5.0, 0.0), (-7.0, 4.0)]
sd.userData = 13
groundBody.CreateShape(sd)
sd.vertices = [(-8.0, 0.0), (-7.0, 4.0), (-8.0, 5.0)]
sd.userData = 14
groundBody.CreateShape(sd)
sd.vertices = [(-8.0, 0.0), (-8.0, 5.0), (-9.0, 7.0)]
sd.userData = 15
groundBody.CreateShape(sd)
sd.vertices = [(-10.0, 0.0), (-8.0, 0.0), (-9.0, 7.0)]
sd.userData = 16
groundBody.CreateShape(sd)
sd.vertices = [(-10.0, 0.0), (-9.0, 7.0), (-10.0, 10.0)]
sd.userData = 17
groundBody.CreateShape(sd)
sd.SetAsBox(.5,6,(10.5,6),0)
groundBody.CreateShape(sd)
sd.SetAsBox(.5,6,(-10.5,6),0)
groundBody.CreateShape(sd)
bd=box2d.b2BodyDef()
bd.position=(9.5,60)
self.ball = self.world.CreateBody( bd )
cd=box2d.b2PolygonDef()
cd.vertexCount = 8
w = 1.0
b = w / (2.0 + math.sqrt(2.0))
s = math.sqrt(2.0) * b
cd.vertices = [( 0.5 * s, 0.0),
( 0.5 * w, b),
( 0.5 * w, b + s),
( 0.5 * s, w),
(-0.5 * s, w),
(-0.5 * w, b + s),
(-0.5 * w, b),
(-0.5 * s, 0.0) ]
cd.density = 1.0
cd.userData = 'BALL'
self.ball_shape = self.ball.CreateShape(cd)
self.ball.SetMassFromShapes()
def Step(self, settings):
strings = []
name_dict = { fwContactTypes.contactAdded : "added",
fwContactTypes.contactRemoved : "removed",
fwContactTypes.contactPersisted : "persisted" }
strings = ["%s: %s, %s (%s)" % (name_dict[point.state], point.shape1.userData, point.shape2.userData, point.id.key)
for point in self.points]
if len(strings) > 15:
strings = strings[:14]
for string in strings:
self.DrawStringCR(string)
super(ContactCallbackTest, self).Step(settings)
if __name__=="__main__":
main(ContactCallbackTest)
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