You can do shorter

`for i = 1, whatever_you_want do`

if i < 15 then

-- calculation

elseif i < 30 then

-- other calculation

elseif i < 45

-- Again

end

end

This is recommanded to do so if you plan to do exponential coordination, for instance, admit that i[0; 15] have a fixed position of x + 15 where x = 10 (example)

simple way is

if i <= 15 then

table*:draw(surface, 10 + (15 * i))*

elseif i <= 30 then

-- Other position

table*:draw(surface, 24 + (13 * i))*

end

And it does the job

In the case of your example

`local starter={}`

local ender ={}

for i = 1, 15 do

-- First, check if i = 1, if yes, then the start value would be 0

local start = i == 1 and 0 or starter[i]

-- starter and ender share the same result apparently ?

starter[i] = start + 15

ender[i] = starter[i]

end

Now let's assume you want to increment the starter and ender array in a different way, but still exponentially

`local starter={}`

local ender ={}

for i = 1, 30 do

-- First, check if i = 1, if yes, then the start value would be 0

local start = i == 1 and 0 or starter[i]

local increment

if i <= 15 then

increment = 15

elseif i <= 30 then

increment = -30

end

-- starter and ender share the same result apparently ?

starter[i] = start + increment

ender[i] = starter[i]

end

Not tested but that should work