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ezhh 2018-10-21 23:39:01 +01:00
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_en/basics/lua.md
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@ -72,7 +72,7 @@ To use Eclipse and the Koneki Lua plugin when writing Minetest mods:
* Create a new Lua project from existing source (specify Minetest's base directory).
* Follow the "Attach to remote Application" debugging instructions from Koneki wiki.
* It is suggested to add those lines from wiki at the beginning of builtin.lua.
* Start the debugger. (Set "Break on first line" in debugger configuration to see if it is working).
* Start the debugger. (Set "Break on first line" in debugger configuration to see if it is working.)
* Start Minetest.
* Enter the game to start Lua.
@ -89,8 +89,7 @@ There are three main types of flow:
* Sequence: This runs one statement after another, with no skipping.
* Selection: This skips over sequences depending on conditions.
* Iteration: Repeating, looping. This runs the same
statements until a condition is met.
* Iteration: This repeats the same statements until a condition is met.
So, what do statements in Lua look like?
@ -266,7 +265,7 @@ one()
two()
```
The dump() function can turn any variable into a string so the programmer can
The dump() function converts almost any variable into a string so that the programmer can
see what it is. In this example, the foo variable will be printed as "bar", including the quotes
which show it is a string. This reveals that the foo variable was global, because it could be
accessed from another function than the one in which it was declared.
@ -294,8 +293,8 @@ Remember that nil means **not initialised**.
The variable hasn't been assigned a value yet,
doesn't exist, or has been uninitialised (meaning set to nil).
The same applies to functions. Functions are variables of a special type, and
should be made local, because other mods could have functions with the same names.
Functions are variables of a special type, but should also be made local,
because other mods could have functions with the same names.
API tables should be used to allow other mods to call the functions:
@ -318,7 +317,7 @@ The recommended way to include other Lua scripts in a mod is to use *dofile*.
dofile(minetest.get_modpath("modname") .. "/script.lua")
```
"local" variables declared outside any functions in a script file will be local to that script.
"local" variables that are not declared inside a function will be local to that script.
A script can return a value, which is useful for sharing private locals:
```lua