diff options
| -rw-r--r-- | elements/add_objects.py | 27 | ||||
| -rw-r--r-- | tools.py | 10 |
2 files changed, 33 insertions, 4 deletions
diff --git a/elements/add_objects.py b/elements/add_objects.py index 6ce7773..c89c273 100644 --- a/elements/add_objects.py +++ b/elements/add_objects.py @@ -490,6 +490,31 @@ class Add: self.parent.world.CreateJoint(jointDef) + def revoluteJoint(self,b1,b2,p1): + # revolute joint between to bodies
+ p1 = self.parent.to_world(p1)
+ p1x, p1y = p1
+ p1x /= self.parent.ppm
+ p1y /= self.parent.ppm
+ p1 = box2d.b2Vec2(p1x, p1y) +
+ jointDef = box2d.b2RevoluteJointDef()
+ jointDef.Initialize(b1, b2, p1)
+
+ self.parent.world.CreateJoint(jointDef) + + def prismaticJoint(self,b1,b2,Axis=(0.0,1.0),lower=-2,upper=2): + jointDef = box2d.b2PrismaticJointDef() + worldAxis = box2d.b2Vec2(Axis[0],Axis[1]) + jointDef.Initialize(b1, b2, b1.GetWorldCenter(), worldAxis) + jointDef.lowerTranslation = lower + jointDef.upperTranslation = upper + jointDef.enableLimit = True + + self.parent.world.CreateJoint(jointDef) + + def + def joint(self, *args): print "* Add Joint:", args
@@ -522,7 +547,7 @@ class Add: pass
elif len(args) == 1:
- # Revolute Joint to the Background, assume the center of the body
+ # Fixed Joint to the Background, assume the center of the body
b1 = self.parent.world.GetGroundBody()
b2 = args[0]
p1 = b2.GetWorldCenter()
@@ -259,15 +259,19 @@ class JointTool(Tool): # grab the first body self.jb1pos = event.pos self.jb1 = self.game.world.get_bodies_at_pos(event.pos) - self.jb2 = self.jb2pos = None + self.jb2 = self.jb2pos = None + if event.button == 2: + bodies = self.game.world.get_bodies_at_pos(event.pos) + if len(bodies) >=2: + self.game.world.add.revoluteJoint(bodies[0],bodies[1],event.pos) elif event.type == MOUSEBUTTONUP: if event.button == 1: # grab the second body self.jb2pos = event.pos self.jb2 = self.game.world.get_bodies_at_pos(event.pos) - # if we have two distinct bodies, add a joint! + # if we have two distinct bodies, add a distance joint! if self.jb1 and self.jb2 and str(self.jb1) != str(self.jb2): - self.game.world.add.distanceJoint(self.jb1[0],self.jb2[0],self.jb1pos,self.jb2pos) + self.game.world.add.distanceJoint(self.jb1[0],self.jb2[0],self.jb1pos,self.jb2pos) # If there's only one body, add a fixed joint elif self.jb2: self.game.world.add.fixedJoint(self.jb2[0],self.jb2pos) |