Solved Scenario .lua file-Help!

So I've got a pretty complex scenario, I got almost everything working, except from the "win" condition.
What I need is a .lua file that will "count" whenever you've passed through specific checkpoints (not every checkpoint- only specific ones), and after you passed through a defined number of them, it will send a "success" to the game (you win).
Problem is, I don't know .lua at all.
If you know a bit of .lua, and can help by explaining what functions I need to use, or by sending a link that will help me learn Beamng lua basics, or even better- if you could build a template file, I'd really appreciate that.

 

Check out the Tanker Delivery LUA script for reference, but I think you could do (this is abbreviated):

local count = 0

Onplayerentercheckpoint {
count++;
if(count == somenumber)
{
win
}
}

 

Here's my non-abbreviated version. It works!!!
I'm happy now. Good night.

HTML:

local M = {}

local helper = require('scenario/scenariohelper')

local running = false
local scenario = nil
local count = 0

local function success(reason)
  scenario_scenarios.finish({msg = reason})
end



local function onRaceWaypointReached(data)
    local playerVehicleId = be:getPlayerVehicleID(0)
    if data.vehicleId == playerVehicleId then
        if data.waypointName == 'waypoint_15' then
                count = count + 1 ---- got to admit- I'm surprised it worked. This is Basic's syntax (The only language I ever learned was Basic), but apparently it's fine by Lua. So... Yay!
        end
        
        if data.waypointName == 'waypoint_29' then
                count = count + 1
        end
        
            
        if(count == 2) then
            success('You made it!')
        end
    end
end

M.onRaceWaypointReached = onRaceWaypointReached

return M