[Bf-gamedev] getReactionForce

[Sam Brubaker]

getReactionForce() seems like the single most important function for
collision events in a game. As far as I know, it's the only function in bge
that, for some reason, is documented but not implemented.
Calling back how hard something hit another thing is the basis for
countless game mechanics, so I think implementing this function should be a
top priority.

On Thu, Sep 11, 2014 at 5:24 AM, Alex Fraser <alex at phatcore.com> wrote:

> It's not ideal, but you can calculate the acceleration by keeping track of
> an object's location on every frame.  Then if you know the other forces
> that are acting on it (e.g. due to gravity and animation), you could
> subtract those to calculate the reaction force.
>
> I can't comment on how easy it would be to fix the actual getReactionForce
> function.
>
> Alex
> On 11 Sep 2014 07:15, "Jacob Merrill" <blueprintrandom1 at gmail.com> wrote:
>
>>
>> http://www.blender.org/documentation/249PythonDoc/GE/GameTypes.KX_GameObject-class.html#getReactionForce
>>
>> is there any way to implement this ?
>>
>> can the data returned be per collision
>>
>> ?
>>
>> like
>>
>> f= own.getReactionForce[0]
>>
>> print f
>>
>> object, local force, world force ?
>>
>> I really need it for many different projects but mainly the walking
>> ragdoll
>> https://www.youtube.com/watch?v=quGPXLF1LiI
>>
>> Thanks!
>>
>>
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