I’m trying to make a 2D rope bridge with rectangles as planks, and rectangles left and right of the bridge to hang it from. Right now I have a line of sprite GameObjects with just a square graphic. I added a “Hinge Joint 2D” to each of them, and I did things like limiting rotation, having them collide with each other. But I have no idea where to go from here.
I can’t find any recent tutorials or posts about it, and videos I do find are either super long and convoluted (and also use 3D hinge joints), or are just really hard to follow as everything is shown very briefly and not explained.
I might suggest getting just a rope to suspend correctly between the two end points first. Do a tight-rope first, then a bridge! Well easy for me to say, as I’ve never done it. But would be my approach!
I see my problem. I was directly connecting hinge joint objects, rather than connecting regular rigidbodies using hinge joints.
But now that I have a proper working bridge, it’s really wobbly. Like I’ll have my character run on it, it’ll bend under the weight, and when I hop off the bridge, it’ll continue to “bounce” up and down in an arch for a few good seconds before finally coming to a halt. How can I remove this effect?
I tried changing the bridge parts’ mass, and the player’s mass, but that doesn’t have any effect on the bounce, just on how much they bend down initially.
P.S. Currently I’m pinning the bridge by freezing the rigidbody position of both end planks. The bounce also happens at the start, when gravity just does its thing.
Update: Changing gravity scale for the individual objects also doesn’t have any effect. If I increase it, the bridge will naturally curve lower on its own, but the wobbling is still there when any force is applied or removed. Same if I decrease it, the bridge will still wobble, just in slow motion. Setting the gravity high enough does make the wobble almost not noticable, but at that point the bridge curves way too much down.