Joint + drag max distance

Hello there,

I have been lurking in this forum for few months now and started to build my app with C2. There is one thing among many I can't figure out yet. The task is simple but I just don't know how to search for it or how it is named.

Let's say I want to drag with touch event some body part that is pinned or jointed to the body. Now I would like to create max distance it could be dragged so it doesn't look like you are dragging it out from the body. Also it should bounce back nicely.

<img src="https://www.dropbox.com/s/jtdspb2hasyz12s/drag.png" border="0" />

Can anyone link to some example or explain how is max distance for dragging done?

Thanks in advance!

<img src="http://www.digitar.ee/games/drag.png" border="0" />

I'm not quite sure what effect you are trying to create, but a simple solution for limiting the drag would be comparing the distance I guess.

Would this work?

sprite1 is dragging

system compare two values: distance(sprite1.x, sprite1.y, sprite2.x, sprite2.y) > 100

-sprite1 stop dragging

Thanks LittleStain! That's almost what I need. <img src="smileys/smiley32.gif" border="0" align="middle" />

Now there should be some bounciness and the dragged object should move back to its original position as image point. The entire drag action should feel very elastic :)

I'm not a programmer but trying to dig myself deeper into that.

I made example file:

dropbox.com/s/64zkshx5dd5zh7l/drag-test.capx

Should I use now just physics or I need little extra behavior like Gravity (to add also new gravity point)?

Maybe you could do something like this:

add two instance variables startx and starty.

on drag start

• sprite set startx to sprite.x
• sprite set starty to sprite.y

sprite on is not dragging

• sprite set x to : lerp(sprite.x,sprite.startx,0.5)
• sprite set y to : lerp(sprite.y,sprite.starty,0.5)

Ohh, thanks again! I'll try your suggestion out for the next.

I tried this: .CAPX with the "Sine". Only thing missing now is the deceleration.