From my little experience with phisics its realy hard to do entierly with phisics.

so i sugest you use animation insted of physics or a mix of both

for insted if you push "space bar" animate "attack-1"

also have a look at the platform behivour tutorial the part of the animation

could you explain more for exemple use picture to explain what you want to achieve

LittleStain

sprite set x - object.imagepointx(11)

sprite set y - object.imagepointy(11)

thank you LittleStain for your reply <img src="smileys/smiley1.gif" border="0" align="middle" />

it does not solve my problem i wonder if you did see the picture or not

let me explain more.

i have

Sprite1 with " origin,image point1"

Sprite2 with " origin,image point11"

i want to place Sprite2 from "image point 11" on "image point1" of Sprite1.

Your solution result like this: Sprite2   "image point 11" on "origin" of Sprite1.       

sorry but i can not post image to explain more

hello <img src="smileys/smiley2.gif" border="0" align="middle" />

i want to postion a sprite on onther object image point.

<img src="http://oi40.tinypic.com/505rua.jpg" border="0" />

For exmple i want to postion image point11 on image point 1

hello mike

thank you for the behaviours

Could you please add a prismatic joint to your behaviours or help me or guide me to create a prismatic joint behavoiurs my own to use along with yours.

plz reply as soon as possible <img src="smileys/smiley5.gif" border="0" align="middle" />

hello i want to make a side way car game but i am struggling with the suspension i want the physics behaviours to feel like the second example at the link below

<font color=red>emanueleferonato DOT com/2009/04/06/two-ways-to-make-box2d-cars/</font>

i downlanded some example and behaviors in tutorial section but no luck until i find out that i need a prismatic joint so i tried to ("hack") the official physics behaviours by adding this code i just figured out:

          var B2PrismaticJointDef = function( bA , bB , anchorA , anchorB , axis) {//me
[code]
              ?this.type = B2Joint.e_revoluteJoint ;
              ?this.localAnchorA = new B2Vec2() ;
              ?this.localAnchorB = new B2Vec2() ;
              ?this.localAxisA   = new B2Vec2();//me
              ?this.userData = null ;
              ?if( bA !== undefined ){this.bodyA = bA ;}

              ?if( bB !== undefined ){this.bodyB = bB ;}

              ?if( anchorA !== undefined){this.localAnchorA.SetV(anchorA) ;}

              ?if( anchorB !== undefined){this.localAnchorB.SetV(anchorB) ;}

             if( axis !== undefined ){this.localAxisA.SetV(axis) ;}//me

              ?
              ?//me

              ?this.enableLimit=false;

              ?this.enableMotor=false;

              ?this.lowerTranslation=0.0;

              ?this.maxMotorForce=0.0;

              ?this.motorSpeed=0.0;

              ?this.referenceAngle=0.0;

              ?this.upperTranslation=0.0;

              ?//me
          };

          B2RevoluteJointDef.prototype.Initialize = function (bA, bB, anchor,axis) {

              ?this.bodyA = bA;

              ?this.bodyB = bB;

              ?this.localAnchorA = this.bodyA.GetLocalPoint(anchor);

              ?this.localAnchorB = this.bodyB.GetLocalPoint(anchor);

              ?this.referenceAngle = this.bodyB.GetAngle() -this.bodyA.GetAngle();

              this.localAxisA = this.bodyA.GetLocalAxis(axis);
          };

     Box2D.Dynamics.Joints.b2PrismaticJointDef = b2PrismaticJointDef ;

hi thanks Blacksmith for the reply

any exemple please <img src="smileys/smiley1.gif" border="0" align="middle" />

hello every body i am a little bit confused i want to ask if i make a game

for mobile devices in C2 and used phone gap or ludei or intelxdk the app

wich will be created need internet to run.

ex: i am in the bus and i want to play the game in my ipodtouch and there is no internet does it run?

<img src="smileys/smiley5.gif" border="0" align="middle" />