# CUSTOM_FUNCTIONS

`function name_of_function()`

You may want to create your own functions to help organize your code and make your code more efficient.

Here's an example of a simple custom function that adds two numbers together:

```
function addNumbers(num1, num2)
sum = num1 + num2
return sum
end
```

In this function, we're using the function keyword to define a new function called `addNumbers`

. The function takes two parameters, `num1`

and `num2`

, which represent the two numbers we want to add together. Inside the function, we're adding the two numbers together and storing the result in a new variable called sum. Finally, we're using the `return`

keyword to send the sum variable back to wherever we asked the function to run.

To run this function, we could write some code like this:

```
result = addNumbers(5, 10)
print(result)
--prints 15
```

This code can be written anywhere else inside our game code. We are creating a variable named `result`

and at the same time we're calling the `addNumbers`

function to run and we pass the numbers `5`

and `10`

to the function inside of the parentheses. The function then accepts those numbers in the exact order they were given, so that `num1`

becomes `5`

, and `num2`

becomes `10`

. This function will then create a variable named `sum`

, add `num1`

and `num2`

together, then return that sum as the result. So it will add `5`

with `10`

, and save `15`

to `sum`

. Then it returns `sum`

to where we called it.

The returned value from the `addnumbers`

function is then saved as `result`

. Finally, we're using the print function to display the value of result on the screen.

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3 Apr 2023