Difference between revisions of "Basic lua: Tables"
From The Official Visionaire Studio: Adventure Game Engine Wiki
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{| class="in" | {| class="in" | ||
|- | |- | ||
| − | | class="i_arrow clickablecell" | [[basic_lua: | + | | class="i_arrow clickablecell" | [[basic_lua:_Types|<]] |
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | | class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | ||
| class="i_arrow clickablecell" | [[basic_lua:_Functions|>]] | | class="i_arrow clickablecell" | [[basic_lua:_Functions|>]] | ||
| Line 50: | Line 50: | ||
print( "table entry total: " .. #(t) ) -- print total of table entries | print( "table entry total: " .. #(t) ) -- print total of table entries | ||
</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(tables)_2.png|frameless|center|180px]] | </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(tables)_2.png|frameless|center|180px]] | ||
| + | |} | ||
| + | |||
| + | {| class="in" | ||
| + | |- | ||
| + | | class="i_arrow clickablecell" | [[basic_lua:_Types|<]] | ||
| + | | class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | ||
| + | | class="i_arrow clickablecell" | [[basic_lua:_Functions|>]] | ||
|}{{toc}} | |}{{toc}} | ||
Revision as of 18:02, 2 September 2022
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.
| < | Index | > |
Creating a table
| method 1: automatically generated index values | |
|---|---|
local t = {1, 2, 3, 4, 5, "six", 7, "ate", 9} -- automatically assigns an index number to each value starting from 1
local str = "" -- empty string
for i = 1, #t do -- for 1 to table total, print value of index number
str = str .. t[i] -- add current table index value to existing text data in the str variable
if i < #t then str = str .. ", " end -- if i is less than table entry total then insert ", " into the str variable
end
print("table data: " .. str) -- print the table data
print( "table entry total: " .. #(t) ) -- print total of table entries
|
_1.png) |
| method 2: manually created index values | |
|---|---|
local t = {
[1] = 1,
[2] = "two",
[3] = 3,
[4] = 2 * 2,
[5] = "five",
}
local str = "" -- empty string
for i = 1, #t do -- for 1 to table total, print value of index number
str = str .. t[i] -- add current table index value to existing text data in the str variable
if i < #t then str = str .. ", " end -- if i is less than table entry total then insert ", " into the str variable
end
print("table data: " .. str) -- print the table data
print( "table entry total: " .. #(t) ) -- print total of table entries
|
_2.png) |
| < | Index | > |
