Varying weight control for individual objects / primitives.
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Hello Chris, and thanks for creating sketchyphysics. I have been working on a bowling pinsetter for a while, but I can go no further because of a fundamental element that I feel is missing from sketchyphysics. I was wondering if you could look into my request of adding varying weight control for objects / primitives for the next sketchyphysics release. I know there is a world gravity adjuster, but that affects all objects.
I am looking for a feature where I can change (offset) the weight of objects individually for my pinsetter to work. Could you add a feature that allows users to right click on a primitive to adjust the weight of the individual object? See, most bowling pinsetters utilize the heavy end of the pin to get it running up the belt, bottom side up every time. Only problem is that there is no way for me (with the first 3 versions) to create a "heavy end" of the pin without varying weight control. I've tried things like cutting the pin in half, with the bottom being larger, hiding extra objects within the bottom half of the pin to add more weight, but nothing works. It doesn't seem to add anymore virtual weight to the bottom end of the pin. Thank you for reading, hopefully you will consider my request. -Brady
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The June 27th version of SP3X allows you to set an object's density in the UI, thereby altering its weight
Another possible solution is to add 'hidden mass'. This requires a complex object of some kind (e.g two box groups grouped together, with the parent group's shape set to 'default'), so that the physics shape can remain unaffected by the overall size of the group. By setting the state of one of the internal groups to 'ignore', enlarging it beyond the original boundaries of the shape, and hiding it, it is possible to add mass and shift the center of gravity of the overall group.
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Thanks for your reply, I will have to try out these suggestions for sure... Oh btw, did they ever fix the joint settings bug in SP3 yet? I might try the newest SP3 to see if that's still a problem. Thanks again, latz... -B
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