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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 *
class DistanceTest (Framework):
name="DistanceTest"
body1=None
body2=None
shape1=None
shape2=None
_pickle_vars = ['body1', 'body2', 'shape1', 'shape2']
def __init__(self):
super(DistanceTest, self).__init__()
sd=box2d.b2PolygonDef()
sd.SetAsBox(1.0, 1.0)
sd.density = 0.0
bd=box2d.b2BodyDef()
bd.position = (0.0, 10.0)
self.body1 = self.world.CreateBody(bd)
self.shape1 = self.body1.CreateShape(sd)
sd=box2d.b2PolygonDef()
sd.vertexCount = 3
sd.setVertex(0,-1.0, 0.0)
sd.setVertex(1,1.0, 0.0)
sd.setVertex(2,0.0, 15.0)
sd.density = 1.0
bd=box2d.b2BodyDef()
#bd.position = (-48.377853, 0.49244255)
#bd.rotation = 90.475891
bd.position = (0.0, 10.0)
self.body2 = self.world.CreateBody(bd)
self.shape2 = self.body2.CreateShape(sd)
self.body2.SetMassFromShapes()
self.world.SetGravity((0.0, 0.0))
def Step(self, settings):
if self.body2:
distance, x1, x2 = box2d.b2Distance(self.shape1, self.body1.GetXForm(), self.shape2, self.body2.GetXForm())
self.DrawStringCR("distance = %g" % distance)
self.debugDraw.DrawPoint(x1, settings.pointSize, box2d.b2Color(1.0, 0.0, 0.0))
self.debugDraw.DrawPoint(x2, settings.pointSize, box2d.b2Color(1.0, 0.0, 0.0))
self.debugDraw.DrawSegment(x1, x2, box2d.b2Color(1.0, 1.0, 0.0))
settings.pause = True
super(DistanceTest, self).Step(settings)
settings.pause = False
def Keyboard(self, key):
if not self.body2:
return
p = self.body2.GetPosition()
a = self.body2.GetAngle()
if key==K_a:
p.x -= 0.1
elif key==K_d:
p.x += 0.1
elif key==K_s:
p.y -= 0.1
elif key==K_w:
p.y += 0.1
elif key==K_q:
a += 0.1 * box2d.b2_pi
elif key==K_e:
a -= 0.1 * box2d.b2_pi
self.body2.SetXForm(p, a)
if __name__=="__main__":
main(DistanceTest)
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