This is a help request particularly for @Ramones because he helped silkc2 resolve an issue for a physics-based bridge-making program. HOWEVER! Obviously there are many of you who understand the physics behavior, so please feel free to chime in!
What I need is a "for dummies" explanation of the Physics behavior, in particularly, the Revolute Joints. I've read the manual but it doesn't do much to explain exactly how to put it together.
As a stepping stone for a larger project I'm working on, I'm working on a test program to learn more about Physics. The set-up is that there is a single sprite - a dot - on the screen. When the mouse arrow touches the dot, from whichever point on the dot's circumference, a new dot instance will appear at the very point of mouse-over-dot contact. Thus, the two instances will touch at their respective edges where the mouse originally touched the first instance. (To prevent further complications, I set it so that each instance can only create one new copy of itself one time, requiring an instance variable.)
So far, I figure that a Revolute Joint is the best choice, but I'm not for certain. I've also considered a Distance Joint...but that one's even more complicated (and I could use someone to explain each part of it to me, too).
Rather than JUST giving me all the answers, of course, I welcome someone walking me THROUGH it. Thank you so much!