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You can do
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a = "boi"
print("mah "..a)
mah boi
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CS2D
Scripts Lua Question - Join two variables together
Lua Question - Join two variables together
6 replies
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You can do
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ci={} //initialize array
ci[0]=... //set value at index 0 (same as ci0=...)
ci[1]=...
...
ci[9]=...
ci[sel] //get value at index sel (that's what you tried with ci..sel)
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function initArray2(f,v)
local cmd={}
for c=1,f do
cmd[c]=v
end
return cmd
end
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function doublearray(m,n,k)
local a, x, y = {}
for x = 0, m do a[x] = {}
for y = 0, n do
a[x][y] = k
end
end
return(a)
end
I've tried to understand it but all it tells me is that it sets zeroes for the arrays in the index way. Like a[0] = 0, x = 0, y = z and the (m,n,k) are the parameters that pass the variables and assigns them. The result would be (0,0,00) or something like it, but I now see it only returns (00) if I'm correct because a would then contain 0 and 0 taken directly from the variables x and y. Am I getting this completely wrong? or not?
edited 1×, last 08.01.11 04:42:04 pm
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function get_ci(n) return _G["ci"..n] end
-- Test code
assert(get_ci(1) == ci1) -- True
However, this is not recommended as it implies that you will need to statically initialize everything, which defeats the whole purpose of Lua.
@KimKat:
It creates a two dimensional "array" of m by n (so a total of m*n elements). It then sets every single one of these elements to the argument k supplied by the function call.
A little caution about these types of functions, excluding primitive types (immutables such as string, number, nil), everything is passed by reference, this means that if you try to execute something like this, you may be surprised
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a = doublearray(2,2,{1})
a[1][1][1] = 3
assert(a[1][1][2] == a[1][1][1])
So basically, don't pass in tables into this function.
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