Bridge physics

Game Engine Game Engine Support and Discussion
1

Hey guys, this is kind of an open-ended question… but I’m trying to make ropes/bridges in my game, where you can walk on them and they will bend under your weight. Any tips/pointers on how to do this in Blender?

Look at the images so you can see what I’m talking about.
(from Sonic 2 and New Super Mario Bros)

Thanks in advance.

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2

you could use constraints

3

You can try using soft bodies or rigid body joints. If the bridge is one mesh use soft bodies, if it is more than one mesh use rigid body joints. I hope this answers your question.

4

Thanks guys, I think rigid body joints will work for my log bridge.

EDIT:
One more problem: The constraints seem to not work when they are inside a group instance, other than that they work fine.
i.e. when I run the game on the bridge model, the joints work fine - but when I make a group instance of the log bridge and run the game, the logs all fall apart from each other.
Is this just a Blender quirk or is there a way around it?