CS2D 
why error? a nil value
1 
Offline
i leave cs2d 2, 3 week ! help me @ @
i want remove some image near player:
Error :
1
attempt to perform arithmetic on filed '?' (a nil value)
create image
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function create_light(l_x,l_y)
if l_x and l_y then
i = i + 1
save_x[i] = l_x
save_y[i] = l_y
l_img[i] = image("gfx/sprites/flare3.bmp",save_x[i],save_y[i],1)
imagepos(l_img[i],save_x[i],save_y[i],math.random(1,360))
end
end
remove image
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addhook("attack","remove")
function remove(id)
if id ~= nil then
remove_light(id)
end
end
function remove_light(id)
local x = player(id,"x")
local y = player(id,"y")
if i then
if x < (save_x[i] + 16) and x > (save_x[i] - 16) then
if (y < save_y[i] + 16) and y > (save_y[i] - 16) then
if l_img[i] ~= nil then
save_x[i] = nil
save_y[i] = nil
freeimage(l_img[i])
end
end
end
end
end
Didn't read the error message properly. Anyway, it means that a field of a table doesn't exist, but you are trying to use it. This will take a while to debug. 
kalis