Difference between revisions of "Basic lua: Functions"
From The Official Visionaire Studio: Adventure Game Engine Wiki
| Line 53: | Line 53: | ||
|} | |} | ||
| − | == | + | === Input Arguments and Fallback === |
| + | {| class="ts" | ||
| + | |- | ||
| + | ! print 0.5, 5 !! | ||
| + | |- | ||
| + | | style="max-width:680px;" | <syntaxhighlight lang="lua"> | ||
| + | function divideAndConquer(a, b, c) | ||
| + | c = c or 1 -- if c equals nil then c equals 1 | ||
| + | return (a / b) * c | ||
| + | end | ||
| + | |||
| + | print( divideAndConquer(2, 4) ) -- 2 ÷ 4 = 0.5 | ||
| + | print( divideAndConquer(2, 4, 10) ) -- 0.5 x 10 = 5 | ||
| + | </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_4.png|frameless|center|180px]] | ||
| + | |} | ||
{| class="in" | {| class="in" | ||
Revision as of 02:57, 3 September 2022
| < | Index | > |
Tables are one of the features of Lua script, that make the scripting language so dynamic & easy to use, as they allow us to easily create tables, insert, remove & sort data. Tables are often comprised of arrays that usually involve keywords - or an index number - & a value. Tables can be accessed using multiple different methods.
Creating Functions
Below I am going to show you how to create your own custom functions.
Classic Function
| print hello world! | |
|---|---|
function hello()
print("hello world!")
end
hello()
|
_1.png) |
Variable as Function
| print hello world! | |
|---|---|
hello = function()
print("hello world!")
end
hello()
|
_2.png) |
Function with Input Arguments
| print 6 | |
|---|---|
function plus(a, b)
return a + b
end
print( plus(2, 4) )
|
_3.png) |
Input Arguments and Fallback
| print 0.5, 5 | |
|---|---|
function divideAndConquer(a, b, c)
c = c or 1 -- if c equals nil then c equals 1
return (a / b) * c
end
print( divideAndConquer(2, 4) ) -- 2 ÷ 4 = 0.5
print( divideAndConquer(2, 4, 10) ) -- 0.5 x 10 = 5
|
_4.png) |
| < | Index | > |
