Cant call a function from an API

Hello, i have a program that should call a function from a custom API but it displays just Attempt to index ? (a nil value) when it gets to that point. Weird thing is that my other APIs work perfectly fine. I also tried to call another function from that API but no functions from it work

code:

bpmaker

os.loadAPI("bpmakerbp")
os.loadAPI("gui")
function triggerButton(id)
os.shutdown()
end
function button1_click()
os.shutdown()
end
term.clear()
bpmakerbp.implement() --error here

bpmakerbp

os.loadAPI("gui")
os.loadAPI("bpmaker")
local lastx = 0
local lasty = 0
local e,s
local clicked = false
local run = true
local buttons = {{1,1,10,1,"Add button",'button1_click'} }
function getClicks()
e,s,lastx,lasty = os.pullEvent("mouse_click")
clicked = true
end
function draw()
--addbutton
for i=1, #buttons do
gui.drawBox(buttons[i][1],buttons[i][2],buttons[i][3],buttons[i][4],buttons[i][5])
if clicked then
if gui.intersect(buttons[i], {lastx, lasty}) then
bpmaker.triggerButton(buttons[i][6])
end
clicked = false
end
--end
end
end
function implement()
while true do
parallel.waitForAll(getClicks, draw)
end

It looks like both files try to load the other as an API.
There shouldn't be a need to do that, one file is an API, the other is the program that uses the API.


Also, the second file is missing an 'end', at the bottom, but I assume that is just a copy/paste mishap.

As HPWebcamAble said loading APIs is global among all programs that ever run until the API is either unloaded or the computer is restarted. Loading "gui" twice is redundant.

TYKUHN2, on 17 August 2015 - 04:58 AM said:

Loading "gui" twice is redundant.

Well, that too, but I was refering to 'os.loadAPI("bpmaker")' in 'bpmakerbp' and 'os.loadAPI("bpmakerbp")' in 'bpmaker'

Maybe I should elaborate more:

It seems to me that you want to be able to run either file to run the program.
That isn't how an API works - Assume your API will never be run.
Usually, 100% of an API is functions - No code runs if the API is executed like a program.
(There are exceptions - like my Turtle Tweaks API)

It makes no sense to load 'bpmaker' as an API. Because it isn't supposed to be an API, its a program.

In regards to loading 'gui' in both files - don't.
Only load it in the one that actually calls the functions.