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Keys used to map custom properties are memory addresses of objects (b2Body,b2Fixture...etc). And Box2D uses his own allocation method to be efficient (reuse allocated memory). If the above is true, then what happens when an objectA (memory 0x01), which has a custom property, gets deleted and, object...

Thank you Chris.
I have just realized that it can be easily done (my fault).

Also thanks for that PE to RUBE tip. I'm going to test it to see how it goes.

Hello,

I wanted to know how to copy body information from one json file to another file.
Can it be done inside RUBE? Or do you have to manually edit json files?
What would be the best approach?

Thanks.

(migrating from PhysicsEditor to RUBE. It is great.)

When dragging and dropping two images (PNG) to the editor, the images are resized/scaled automatically to the same size or a scale completely different. (rube for Mac 10.7.5)

Helpful suggestion Chris, it worked out. Thank you. on b2dJson.h //reading functions ... b2Joint* j2b2NewJoint(b2World* world, Json::Value jointValue, b2Body *bodyA, b2Body *bodyB); ... on b2dJson.cpp b2Joint* b2dJson::j2b2NewJoint(b2World* world, Json::Value jointValue, b2Body *bodyA, b2Body *bodyB...

I am trying to copy a joint but there are some errors. Json::Value jointValue; b2Joint *tmpJoint; tmpJoint=json->getJointByName("jointName"); jointValue=json->b2j(tmpJoint); json->j2b2Joint(World,jointValue); But it is like the b2j function does not return anything, crushing the program at...