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- Subject: Re: Wrong number of elements in stack ...
- From: "Gil Damoiseaux" <gil@...>
- Date: Sat, 8 May 2004 23:07:19 +0200
Thanks everyone for the info. I know I should read the manual again and
again .
If I have correctly understood the behaviour of the functions and I want
to have a function that adds 2 3D vectors . I can't do something like
this
Function add_vector(x1,y1,z1,x2,y2,z2)
return x1+x2, y1+y2, z1+z2
end
as I'll be unable to use it like
print(add_vector(get_position(1), get_position(2))
But maybe, the best solution is to have something like :
Function add_vector(v1,v2)
return v1[1]+v2[1], v1[2]+v2[2], v1[3]+v2[3]
end
and do :
print(add_vector({get_position(1)}, {get_position(2)})
Of course, I can also have the get_position() to return a table, so I
don't have to put the {}. And the add_vector can also return a table.
Even better I can set a metatable to the 3D vectors and they can
override the addition and stuff like that.
Does anyone have a better approach/solution?
Gil Damoiseaux, ITV engineer, www.neurotv.be