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[CSM] sound_play & sound_stop support + client_lua_api doc (#5096) 

* squashed: CSM: Implement register_globalstep
  * Re-use fatal error mechanism from server to disconnect client on CSM error
  * Little client functions cleanups

* squashed: CSM: add core.after function
  * core.after is shared code between client & server
  * ModApiUtil get_us_time feature enabled for client
master
Loïc Blot 2017-01-22 11:17:41 +01:00
parent d7bc346981
commit 2c19d51409
23 changed files with 996 additions and 91 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
builtin/client/init.lua
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@ -4,9 +4,10 @@ local clientpath = scriptpath.."client"..DIR_DELIM
local commonpath = scriptpath.."common"..DIR_DELIM
dofile(clientpath .. "register.lua")
dofile(commonpath .. "after.lua")
dofile(commonpath .. "chatcommands.lua")
dofile(clientpath .. "preview.lua")
core.register_on_death(function()
core.display_chat_message("You died.")
end)

15
builtin/client/preview.lua
View File

@ -1,6 +1,6 @@
-- This is an example function to ensure it's working properly, should be removed before merge
core.register_on_shutdown(function()
print("shutdown client")
print("[PREVIEW] shutdown client")
end)
-- This is an example function to ensure it's working properly, should be removed before merge
@ -15,17 +15,28 @@ core.register_on_sending_chat_messages(function(message)
return false
end)
-- This is an example function to ensure it's working properly, should be removed before merge
core.register_on_hp_modification(function(hp)
print("[PREVIEW] HP modified " .. hp)
end)
-- This is an example function to ensure it's working properly, should be removed before merge
core.register_on_damage_taken(function(hp)
print("[PREVIEW] Damage taken " .. hp)
end)
-- This is an example function to ensure it's working properly, should be removed before merge
core.register_globalstep(function(dtime)
-- print("[PREVIEW] globalstep " .. dtime)
end)
-- This is an example function to ensure it's working properly, should be removed before merge
core.register_chatcommand("dump", {
func = function(name, param)
return true, dump(_G)
end,
})
})
core.after(2, function()
print("After 2")
end)

1
builtin/client/register.lua
View File

@ -55,6 +55,7 @@ local function make_registration()
return t, registerfunc
end
core.registered_globalsteps, core.register_globalstep = make_registration()
core.registered_on_shutdown, core.register_on_shutdown = make_registration()
core.registered_on_receiving_chat_messages, core.register_on_receiving_chat_messages = make_registration()
core.registered_on_sending_chat_messages, core.register_on_sending_chat_messages = make_registration()

43
builtin/common/after.lua Normal file
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@ -0,0 +1,43 @@
local jobs = {}
local time = 0.0
local last = core.get_us_time() / 1000000
core.register_globalstep(function(dtime)
local new = core.get_us_time() / 1000000
if new > last then
time = time + (new - last)
else
-- Overflow, we may lose a little bit of time here but
-- only 1 tick max, potentially running timers slightly
-- too early.
time = time + new
end
last = new
if #jobs < 1 then
return
end
-- Iterate backwards so that we miss any new timers added by
-- a timer callback, and so that we don't skip the next timer
-- in the list if we remove one.
for i = #jobs, 1, -1 do
local job = jobs[i]
if time >= job.expire then
core.set_last_run_mod(job.mod_origin)
job.func(unpack(job.arg))
table.remove(jobs, i)
end
end
end)
function core.after(after, func, ...)
assert(tonumber(after) and type(func) == "function",
"Invalid core.after invocation")
jobs[#jobs + 1] = {
func = func,
expire = time + after,
arg = {...},
mod_origin = core.get_last_run_mod()
}
end

1
builtin/game/init.lua
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@ -17,6 +17,7 @@ if core.setting_getbool("profiler.load") then
profiler = dofile(scriptpath.."profiler"..DIR_DELIM.."init.lua")
end
dofile(commonpath .. "after.lua")
dofile(gamepath.."item_entity.lua")
dofile(gamepath.."deprecated.lua")
dofile(gamepath.."misc.lua")

44
builtin/game/misc.lua
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@ -4,50 +4,6 @@
-- Misc. API functions
--
local jobs = {}
local time = 0.0
local last = core.get_us_time() / 1000000
core.register_globalstep(function(dtime)
local new = core.get_us_time() / 1000000
if new > last then
time = time + (new - last)
else
-- Overflow, we may lose a little bit of time here but
-- only 1 tick max, potentially running timers slightly
-- too early.
time = time + new
end
last = new
if #jobs < 1 then
return
end
-- Iterate backwards so that we miss any new timers added by
-- a timer callback, and so that we don't skip the next timer
-- in the list if we remove one.
for i = #jobs, 1, -1 do
local job = jobs[i]
if time >= job.expire then
core.set_last_run_mod(job.mod_origin)
job.func(unpack(job.arg))
table.remove(jobs, i)
end
end
end)
function core.after(after, func, ...)
assert(tonumber(after) and type(func) == "function",
"Invalid core.after invocation")
jobs[#jobs + 1] = {
func = func,
expire = time + after,
arg = {...},
mod_origin = core.get_last_run_mod()
}
end
function core.check_player_privs(name, ...)
local arg_type = type(name)
if (arg_type == "userdata" or arg_type == "table") and

787
doc/client_lua_api.txt Normal file
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@ -0,0 +1,787 @@
Minetest Lua Modding API Reference 0.4.15
=========================================
* More information at <http://www.minetest.net/>
* Developer Wiki: <http://dev.minetest.net/>
Introduction
------------
Content and functionality can be added to Minetest 0.4 by using Lua
scripting in run-time loaded mods.
A mod is a self-contained bunch of scripts, textures and other related
things that is loaded by and interfaces with Minetest.
Mods are contained and ran solely on the server side. Definitions and media
files are automatically transferred to the client.
If you see a deficiency in the API, feel free to attempt to add the
functionality in the engine and API. You can send such improvements as
source code patches on GitHub (https://github.com/minetest/minetest).
Programming in Lua
------------------
If you have any difficulty in understanding this, please read
[Programming in Lua](http://www.lua.org/pil/).
Startup
-------
Mods are loaded during client startup from the mod load paths by running
the `init.lua` scripts in a shared environment.
Paths
-----
* `RUN_IN_PLACE=1` (Windows release, local build)
* `$path_user`:
* Linux: `<build directory>`
* Windows: `<build directory>`
* `$path_share`
* Linux: `<build directory>`
* Windows: `<build directory>`
* `RUN_IN_PLACE=0`: (Linux release)
* `$path_share`
* Linux: `/usr/share/minetest`
* Windows: `<install directory>/minetest-0.4.x`
* `$path_user`:
* Linux: `$HOME/.minetest`
* Windows: `C:/users/<user>/AppData/minetest` (maybe)
Mod load path
-------------
Generic:
* `$path_share/clientmods/`
* `$path_user/clientmods/` (User-installed mods)
In a run-in-place version (e.g. the distributed windows version):
* `minetest-0.4.x/clientmods/` (User-installed mods)
On an installed version on Linux:
* `/usr/share/minetest/clientmods/`
* `$HOME/.minetest/clientmods/` (User-installed mods)
Modpack support
----------------
Mods can be put in a subdirectory, if the parent directory, which otherwise
should be a mod, contains a file named `modpack.txt`. This file shall be
empty, except for lines starting with `#`, which are comments.
Mod directory structure
------------------------
mods
|-- modname
| |-- depends.txt
| |-- screenshot.png
| |-- description.txt
| |-- settingtypes.txt
| |-- init.lua
| |-- models
| |-- textures
| | |-- modname_stuff.png
| | `-- modname_something_else.png
| |-- sounds
| |-- media
| `-- <custom data>
`-- another
### modname
The location of this directory can be fetched by using
`minetest.get_modpath(modname)`.
### `depends.txt`
List of mods that have to be loaded before loading this mod.
A single line contains a single modname.
Optional dependencies can be defined by appending a question mark
to a single modname. Their meaning is that if the specified mod
is missing, that does not prevent this mod from being loaded.
### `screenshot.png`
A screenshot shown in the mod manager within the main menu. It should
have an aspect ratio of 3:2 and a minimum size of 300×200 pixels.
### `description.txt`
A File containing description to be shown within mainmenu.
### `settingtypes.txt`
A file in the same format as the one in builtin. It will be parsed by the
settings menu and the settings will be displayed in the "Mods" category.
### `init.lua`
The main Lua script. Running this script should register everything it
wants to register. Subsequent execution depends on minetest calling the
registered callbacks.
`minetest.setting_get(name)` and `minetest.setting_getbool(name)` can be used
to read custom or existing settings at load time, if necessary.
### `sounds`
Media files (sounds) that will be transferred to the
client and will be available for use by the mod.
Naming convention for registered textual names
----------------------------------------------
Registered names should generally be in this format:
"modname:<whatever>" (<whatever> can have characters a-zA-Z0-9_)
This is to prevent conflicting names from corrupting maps and is
enforced by the mod loader.
### Example
In the mod `experimental`, there is the ideal item/node/entity name `tnt`.
So the name should be `experimental:tnt`.
Enforcement can be overridden by prefixing the name with `:`. This can
be used for overriding the registrations of some other mod.
Example: Any mod can redefine `experimental:tnt` by using the name
:experimental:tnt
when registering it.
(also that mod is required to have `experimental` as a dependency)
The `:` prefix can also be used for maintaining backwards compatibility.
### Aliases
Aliases can be added by using `minetest.register_alias(name, convert_to)` or
`minetest.register_alias_force(name, convert_to).
This will make Minetest to convert things called name to things called
`convert_to`.
The only difference between `minetest.register_alias` and
`minetest.register_alias_force` is that if an item called `name` exists,
`minetest.register_alias` will do nothing while
`minetest.register_alias_force` will unregister it.
This can be used for maintaining backwards compatibility.
This can be also used for setting quick access names for things, e.g. if
you have an item called `epiclylongmodname:stuff`, you could do
minetest.register_alias("stuff", "epiclylongmodname:stuff")
and be able to use `/giveme stuff`.
Sounds
------
Only Ogg Vorbis files are supported.
For positional playing of sounds, only single-channel (mono) files are
supported. Otherwise OpenAL will play them non-positionally.
Mods should generally prefix their sounds with `modname_`, e.g. given
the mod name "`foomod`", a sound could be called:
foomod_foosound.ogg
Sounds are referred to by their name with a dot, a single digit and the
file extension stripped out. When a sound is played, the actual sound file
is chosen randomly from the matching sounds.
When playing the sound `foomod_foosound`, the sound is chosen randomly
from the available ones of the following files:
* `foomod_foosound.ogg`
* `foomod_foosound.0.ogg`
* `foomod_foosound.1.ogg`
* (...)
* `foomod_foosound.9.ogg`
Examples of sound parameter tables:
-- Play locationless on all clients
{
gain = 1.0, -- default
}
-- Play locationless to one player
{
to_player = name,
gain = 1.0, -- default
}
-- Play locationless to one player, looped
{
to_player = name,
gain = 1.0, -- default
loop = true,
}
-- Play in a location
{
pos = {x = 1, y = 2, z = 3},
gain = 1.0, -- default
max_hear_distance = 32, -- default, uses an euclidean metric
}
-- Play connected to an object, looped
{
object = <an ObjectRef>,
gain = 1.0, -- default
max_hear_distance = 32, -- default, uses an euclidean metric
loop = true,
}
Looped sounds must either be connected to an object or played locationless to
one player using `to_player = name,`
### `SimpleSoundSpec`
* e.g. `""`
* e.g. `"default_place_node"`
* e.g. `{}`
* e.g. `{name = "default_place_node"}`
* e.g. `{name = "default_place_node", gain = 1.0}`
Representations of simple things
--------------------------------
### Position/vector
{x=num, y=num, z=num}
For helper functions see "Vector helpers".
### `pointed_thing`
* `{type="nothing"}`
* `{type="node", under=pos, above=pos}`
* `{type="object", ref=ObjectRef}`
Flag Specifier Format
---------------------
Flags using the standardized flag specifier format can be specified in either of
two ways, by string or table.
The string format is a comma-delimited set of flag names; whitespace and
unrecognized flag fields are ignored. Specifying a flag in the string sets the
flag, and specifying a flag prefixed by the string `"no"` explicitly
clears the flag from whatever the default may be.
In addition to the standard string flag format, the schematic flags field can
also be a table of flag names to boolean values representing whether or not the
flag is set. Additionally, if a field with the flag name prefixed with `"no"`
is present, mapped to a boolean of any value, the specified flag is unset.
E.g. A flag field of value
{place_center_x = true, place_center_y=false, place_center_z=true}
is equivalent to
{place_center_x = true, noplace_center_y=true, place_center_z=true}
which is equivalent to
"place_center_x, noplace_center_y, place_center_z"
or even
"place_center_x, place_center_z"
since, by default, no schematic attributes are set.
Formspec
--------
Formspec defines a menu. Currently not much else than inventories are
supported. It is a string, with a somewhat strange format.
Spaces and newlines can be inserted between the blocks, as is used in the
examples.
### Examples
#### Chest
size[8,9]
list[context;main;0,0;8,4;]
list[current_player;main;0,5;8,4;]
#### Furnace
size[8,9]
list[context;fuel;2,3;1,1;]
list[context;src;2,1;1,1;]
list[context;dst;5,1;2,2;]
list[current_player;main;0,5;8,4;]
#### Minecraft-like player inventory
size[8,7.5]
image[1,0.6;1,2;player.png]
list[current_player;main;0,3.5;8,4;]
list[current_player;craft;3,0;3,3;]
list[current_player;craftpreview;7,1;1,1;]
### Elements
#### `size[<W>,<H>,<fixed_size>]`
* Define the size of the menu in inventory slots
* `fixed_size`: `true`/`false` (optional)
* deprecated: `invsize[<W>,<H>;]`
#### `container[<X>,<Y>]`
* Start of a container block, moves all physical elements in the container by (X, Y)
* Must have matching container_end
* Containers can be nested, in which case the offsets are added
(child containers are relative to parent containers)
#### `container_end[]`
* End of a container, following elements are no longer relative to this container
#### `list[<inventory location>;<list name>;<X>,<Y>;<W>,<H>;]`
* Show an inventory list
#### `list[<inventory location>;<list name>;<X>,<Y>;<W>,<H>;<starting item index>]`
* Show an inventory list
#### `listring[<inventory location>;<list name>]`
* Allows to create a ring of inventory lists
* Shift-clicking on items in one element of the ring
will send them to the next inventory list inside the ring
* The first occurrence of an element inside the ring will
determine the inventory where items will be sent to
#### `listring[]`
* Shorthand for doing `listring[<inventory location>;<list name>]`
for the last two inventory lists added by list[...]
#### `listcolors[<slot_bg_normal>;<slot_bg_hover>]`
* Sets background color of slots as `ColorString`
* Sets background color of slots on mouse hovering
#### `listcolors[<slot_bg_normal>;<slot_bg_hover>;<slot_border>]`
* Sets background color of slots as `ColorString`
* Sets background color of slots on mouse hovering
* Sets color of slots border
#### `listcolors[<slot_bg_normal>;<slot_bg_hover>;<slot_border>;<tooltip_bgcolor>;<tooltip_fontcolor>]`
* Sets background color of slots as `ColorString`
* Sets background color of slots on mouse hovering
* Sets color of slots border
* Sets default background color of tooltips
* Sets default font color of tooltips
#### `tooltip[<gui_element_name>;<tooltip_text>;<bgcolor>,<fontcolor>]`
* Adds tooltip for an element
* `<bgcolor>` tooltip background color as `ColorString` (optional)
* `<fontcolor>` tooltip font color as `ColorString` (optional)
#### `image[<X>,<Y>;<W>,<H>;<texture name>]`
* Show an image
* Position and size units are inventory slots
#### `item_image[<X>,<Y>;<W>,<H>;<item name>]`
* Show an inventory image of registered item/node
* Position and size units are inventory slots
#### `bgcolor[<color>;<fullscreen>]`
* Sets background color of formspec as `ColorString`
* If `true`, the background color is drawn fullscreen (does not effect the size of the formspec)
#### `background[<X>,<Y>;<W>,<H>;<texture name>]`
* Use a background. Inventory rectangles are not drawn then.
* Position and size units are inventory slots
* Example for formspec 8x4 in 16x resolution: image shall be sized
8 times 16px times 4 times 16px.
#### `background[<X>,<Y>;<W>,<H>;<texture name>;<auto_clip>]`
* Use a background. Inventory rectangles are not drawn then.
* Position and size units are inventory slots
* Example for formspec 8x4 in 16x resolution:
image shall be sized 8 times 16px times 4 times 16px
* If `true` the background is clipped to formspec size
(`x` and `y` are used as offset values, `w` and `h` are ignored)
#### `pwdfield[<X>,<Y>;<W>,<H>;<name>;<label>]`
* Textual password style field; will be sent to server when a button is clicked
* When enter is pressed in field, fields.key_enter_field will be sent with the name
of this field.
* `x` and `y` position the field relative to the top left of the menu
* `w` and `h` are the size of the field
* Fields are a set height, but will be vertically centred on `h`
* Position and size units are inventory slots
* `name` is the name of the field as returned in fields to `on_receive_fields`
* `label`, if not blank, will be text printed on the top left above the field
* See field_close_on_enter to stop enter closing the formspec
#### `field[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]`
* Textual field; will be sent to server when a button is clicked
* When enter is pressed in field, fields.key_enter_field will be sent with the name
of this field.
* `x` and `y` position the field relative to the top left of the menu
* `w` and `h` are the size of the field
* Fields are a set height, but will be vertically centred on `h`
* Position and size units are inventory slots
* `name` is the name of the field as returned in fields to `on_receive_fields`
* `label`, if not blank, will be text printed on the top left above the field
* `default` is the default value of the field
* `default` may contain variable references such as `${text}'` which
will fill the value from the metadata value `text`
* **Note**: no extra text or more than a single variable is supported ATM.
* See field_close_on_enter to stop enter closing the formspec
#### `field[<name>;<label>;<default>]`
* As above, but without position/size units
* When enter is pressed in field, fields.key_enter_field will be sent with the name
of this field.
* Special field for creating simple forms, such as sign text input
* Must be used without a `size[]` element
* A "Proceed" button will be added automatically
* See field_close_on_enter to stop enter closing the formspec
#### `field_close_on_enter[<name>;<close_on_enter>]`
* <name> is the name of the field
* if <close_on_enter> is false, pressing enter in the field will submit the form but not close it
* defaults to true when not specified (ie: no tag for a field)
#### `textarea[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]`
* Same as fields above, but with multi-line input
#### `label[<X>,<Y>;<label>]`
* `x` and `y` work as per field
* `label` is the text on the label
* Position and size units are inventory slots
#### `vertlabel[<X>,<Y>;<label>]`
* Textual label drawn vertically
* `x` and `y` work as per field
* `label` is the text on the label
* Position and size units are inventory slots
#### `button[<X>,<Y>;<W>,<H>;<name>;<label>]`
* Clickable button. When clicked, fields will be sent.
* `x`, `y` and `name` work as per field
* `w` and `h` are the size of the button
* `label` is the text on the button
* Position and size units are inventory slots
#### `image_button[<X>,<Y>;<W>,<H>;<texture name>;<name>;<label>]`
* `x`, `y`, `w`, `h`, and `name` work as per button
* `texture name` is the filename of an image
* Position and size units are inventory slots
#### `image_button[<X>,<Y>;<W>,<H>;<texture name>;<name>;<label>;<noclip>;<drawborder>;<pressed texture name>]`
* `x`, `y`, `w`, `h`, and `name` work as per button
* `texture name` is the filename of an image
* Position and size units are inventory slots
* `noclip=true` means the image button doesn't need to be within specified formsize
* `drawborder`: draw button border or not
* `pressed texture name` is the filename of an image on pressed state
#### `item_image_button[<X>,<Y>;<W>,<H>;<item name>;<name>;<label>]`
* `x`, `y`, `w`, `h`, `name` and `label` work as per button
* `item name` is the registered name of an item/node,
tooltip will be made out of its description
to override it use tooltip element
* Position and size units are inventory slots
#### `button_exit[<X>,<Y>;<W>,<H>;<name>;<label>]`
* When clicked, fields will be sent and the form will quit.
#### `image_button_exit[<X>,<Y>;<W>,<H>;<texture name>;<name>;<label>]`
* When clicked, fields will be sent and the form will quit.
#### `textlist[<X>,<Y>;<W>,<H>;<name>;<listelem 1>,<listelem 2>,...,<listelem n>]`
* Scrollable item list showing arbitrary text elements
* `x` and `y` position the itemlist relative to the top left of the menu
* `w` and `h` are the size of the itemlist
* `name` fieldname sent to server on doubleclick value is current selected element
* `listelements` can be prepended by #color in hexadecimal format RRGGBB (only),
* if you want a listelement to start with "#" write "##".
#### `textlist[<X>,<Y>;<W>,<H>;<name>;<listelem 1>,<listelem 2>,...,<listelem n>;<selected idx>;<transparent>]`
* Scrollable itemlist showing arbitrary text elements
* `x` and `y` position the item list relative to the top left of the menu
* `w` and `h` are the size of the item list
* `name` fieldname sent to server on doubleclick value is current selected element
* `listelements` can be prepended by #RRGGBB (only) in hexadecimal format
* if you want a listelement to start with "#" write "##"
* Index to be selected within textlist
* `true`/`false`: draw transparent background
* See also `minetest.explode_textlist_event` (main menu: `engine.explode_textlist_event`)
#### `tabheader[<X>,<Y>;<name>;<caption 1>,<caption 2>,...,<caption n>;<current_tab>;<transparent>;<draw_border>]`
* Show a tab**header** at specific position (ignores formsize)
* `x` and `y` position the itemlist relative to the top left of the menu
* `name` fieldname data is transferred to Lua
* `caption 1`...: name shown on top of tab
* `current_tab`: index of selected tab 1...
* `transparent` (optional): show transparent
* `draw_border` (optional): draw border
#### `box[<X>,<Y>;<W>,<H>;<color>]`
* Simple colored semitransparent box
* `x` and `y` position the box relative to the top left of the menu
* `w` and `h` are the size of box
* `color` is color specified as a `ColorString`
#### `dropdown[<X>,<Y>;<W>;<name>;<item 1>,<item 2>, ...,<item n>;<selected idx>]`
* Show a dropdown field
* **Important note**: There are two different operation modes:
1. handle directly on change (only changed dropdown is submitted)
2. read the value on pressing a button (all dropdown values are available)
* `x` and `y` position of dropdown
* Width of dropdown
* Fieldname data is transferred to Lua
* Items to be shown in dropdown
* Index of currently selected dropdown item
#### `checkbox[<X>,<Y>;<name>;<label>;<selected>]`
* Show a checkbox
* `x` and `y`: position of checkbox
* `name` fieldname data is transferred to Lua
* `label` to be shown left of checkbox
* `selected` (optional): `true`/`false`
#### `scrollbar[<X>,<Y>;<W>,<H>;<orientation>;<name>;<value>]`
* Show a scrollbar
* There are two ways to use it:
1. handle the changed event (only changed scrollbar is available)
2. read the value on pressing a button (all scrollbars are available)
* `x` and `y`: position of trackbar
* `w` and `h`: width and height
* `orientation`: `vertical`/`horizontal`
* Fieldname data is transferred to Lua
* Value this trackbar is set to (`0`-`1000`)
* See also `minetest.explode_scrollbar_event` (main menu: `engine.explode_scrollbar_event`)
#### `table[<X>,<Y>;<W>,<H>;<name>;<cell 1>,<cell 2>,...,<cell n>;<selected idx>]`
* Show scrollable table using options defined by the previous `tableoptions[]`
* Displays cells as defined by the previous `tablecolumns[]`
* `x` and `y`: position the itemlist relative to the top left of the menu
* `w` and `h` are the size of the itemlist
* `name`: fieldname sent to server on row select or doubleclick
* `cell 1`...`cell n`: cell contents given in row-major order
* `selected idx`: index of row to be selected within table (first row = `1`)
* See also `minetest.explode_table_event` (main menu: `engine.explode_table_event`)
#### `tableoptions[<opt 1>;<opt 2>;...]`
* Sets options for `table[]`
* `color=#RRGGBB`
* default text color (`ColorString`), defaults to `#FFFFFF`
* `background=#RRGGBB`
* table background color (`ColorString`), defaults to `#000000`
* `border=<true/false>`
* should the table be drawn with a border? (default: `true`)
* `highlight=#RRGGBB`
* highlight background color (`ColorString`), defaults to `#466432`
* `highlight_text=#RRGGBB`
* highlight text color (`ColorString`), defaults to `#FFFFFF`
* `opendepth=<value>`
* all subtrees up to `depth < value` are open (default value = `0`)
* only useful when there is a column of type "tree"
#### `tablecolumns[<type 1>,<opt 1a>,<opt 1b>,...;<type 2>,<opt 2a>,<opt 2b>;...]`
* Sets columns for `table[]`
* Types: `text`, `image`, `color`, `indent`, `tree`
* `text`: show cell contents as text
* `image`: cell contents are an image index, use column options to define images
* `color`: cell contents are a ColorString and define color of following cell
* `indent`: cell contents are a number and define indentation of following cell
* `tree`: same as indent, but user can open and close subtrees (treeview-like)
* Column options:
* `align=<value>`
* for `text` and `image`: content alignment within cells.
Available values: `left` (default), `center`, `right`, `inline`
* `width=<value>`
* for `text` and `image`: minimum width in em (default: `0`)
* for `indent` and `tree`: indent width in em (default: `1.5`)
* `padding=<value>`: padding left of the column, in em (default `0.5`).
Exception: defaults to 0 for indent columns
* `tooltip=<value>`: tooltip text (default: empty)
* `image` column options:
* `0=<value>` sets image for image index 0
* `1=<value>` sets image for image index 1
* `2=<value>` sets image for image index 2
* and so on; defined indices need not be contiguous empty or
non-numeric cells are treated as `0`.
* `color` column options:
* `span=<value>`: number of following columns to affect (default: infinite)
**Note**: do _not_ use a element name starting with `key_`; those names are reserved to
pass key press events to formspec!
Spatial Vectors
---------------
* `vector.new(a[, b, c])`: returns a vector:
* A copy of `a` if `a` is a vector.
* `{x = a, y = b, z = c}`, if all `a, b, c` are defined
* `vector.direction(p1, p2)`: returns a vector
* `vector.distance(p1, p2)`: returns a number
* `vector.length(v)`: returns a number
* `vector.normalize(v)`: returns a vector
* `vector.floor(v)`: returns a vector, each dimension rounded down
* `vector.round(v)`: returns a vector, each dimension rounded to nearest int
* `vector.apply(v, func)`: returns a vector
* `vector.equals(v1, v2)`: returns a boolean
For the following functions `x` can be either a vector or a number:
* `vector.add(v, x)`: returns a vector
* `vector.subtract(v, x)`: returns a vector
* `vector.multiply(v, x)`: returns a scaled vector or Schur product
* `vector.divide(v, x)`: returns a scaled vector or Schur quotient
Helper functions
----------------
* `dump2(obj, name="_", dumped={})`
* Return object serialized as a string, handles reference loops
* `dump(obj, dumped={})`
* Return object serialized as a string
* `math.hypot(x, y)`
* Get the hypotenuse of a triangle with legs x and y.
Useful for distance calculation.
* `math.sign(x, tolerance)`
* Get the sign of a number.
Optional: Also returns `0` when the absolute value is within the tolerance (default: `0`)
* `string.split(str, separator=",", include_empty=false, max_splits=-1,
* sep_is_pattern=false)`
* If `max_splits` is negative, do not limit splits.
* `sep_is_pattern` specifies if separator is a plain string or a pattern (regex).
* e.g. `string:split("a,b", ",") == {"a","b"}`
* `string:trim()`
* e.g. `string.trim("\n \t\tfoo bar\t ") == "foo bar"`
* `minetest.is_yes(arg)`
* returns whether `arg` can be interpreted as yes
* `minetest.get_us_time()`
* returns time with microsecond precision. May not return wall time.
* `table.copy(table)`: returns a table
* returns a deep copy of `table`
`minetest` namespace reference
------------------------------
### Utilities
* `minetest.get_current_modname()`: returns the currently loading mod's name, when we are loading a mod
* `minetest.get_version()`: returns a table containing components of the
engine version. Components:
* `project`: Name of the project, eg, "Minetest"
* `string`: Simple version, eg, "1.2.3-dev"
* `hash`: Full git version (only set if available), eg, "1.2.3-dev-01234567-dirty"
Use this for informational purposes only. The information in the returned
table does not represent the capabilities of the engine, nor is it
reliable or verifyable. Compatible forks will have a different name and
version entirely. To check for the presence of engine features, test
whether the functions exported by the wanted features exist. For example:
`if core.nodeupdate then ... end`.
### Logging
* `minetest.debug(...)`
* Equivalent to `minetest.log(table.concat({...}, "\t"))`
* `minetest.log([level,] text)`
* `level` is one of `"none"`, `"error"`, `"warning"`, `"action"`,
`"info"`, or `"verbose"`. Default is `"none"`.
### Global callback registration functions
Call these functions only at load time!
* `minetest.register_globalstep(func(dtime))`
* Called every client environment step, usually interval of 0.1s
* `minetest.register_on_shutdown(func())`
* Called before client shutdown
* **Warning**: If the client terminates abnormally (i.e. crashes), the registered
callbacks **will likely not be run**. Data should be saved at
semi-frequent intervals as well as on server shutdown.
* `minetest.register_on_receiving_chat_message(func(name, message))`
* Called always when a client receive a message
* Return `true` to mark the message as handled, which means that it will not be shown to chat
* `minetest.register_on_sending_chat_message(func(name, message))`
* Called always when a client send a message from chat
* Return `true` to mark the message as handled, which means that it will not be sent to server
* `minetest.register_chatcommand(cmd, chatcommand definition)`
* Adds definition to minetest.registered_chatcommands
* `minetest.register_on_death(func())`
* Called when player die
* `minetest.register_on_hp_modification(func(hp))`
* Called when server modified player's HP
* `minetest.register_on_damage_taken(func(hp))`
* Called when player take damages
### Sounds
* `minetest.sound_play(spec, parameters)`: returns a handle
* `spec` is a `SimpleSoundSpec`
* `parameters` is a sound parameter table
* `minetest.sound_stop(handle)`
### Timing
* `minetest.after(time, func, ...)`
* Call the function `func` after `time` seconds, may be fractional
* Optional: Variable number of arguments that are passed to `func`
### Misc.
* `minetest.parse_json(string[, nullvalue])`: returns something
* Convert a string containing JSON data into the Lua equivalent
* `nullvalue`: returned in place of the JSON null; defaults to `nil`
* On success returns a table, a string, a number, a boolean or `nullvalue`
* On failure outputs an error message and returns `nil`
* Example: `parse_json("[10, {\"a\":false}]")`, returns `{10, {a = false}}`
* `minetest.write_json(data[, styled])`: returns a string or `nil` and an error message
* Convert a Lua table into a JSON string
* styled: Outputs in a human-readable format if this is set, defaults to false
* Unserializable things like functions and userdata are saved as null.
* **Warning**: JSON is more strict than the Lua table format.
1. You can only use strings and positive integers of at least one as keys.
2. You can not mix string and integer keys.
This is due to the fact that JSON has two distinct array and object values.
* Example: `write_json({10, {a = false}})`, returns `"[10, {\"a\": false}]"`
* `minetest.serialize(table)`: returns a string
* Convert a table containing tables, strings, numbers, booleans and `nil`s
into string form readable by `minetest.deserialize`
* Example: `serialize({foo='bar'})`, returns `'return { ["foo"] = "bar" }'`
* `minetest.deserialize(string)`: returns a table
* Convert a string returned by `minetest.deserialize` into a table
* `string` is loaded in an empty sandbox environment.
* Will load functions, but they cannot access the global environment.
* Example: `deserialize('return { ["foo"] = "bar" }')`, returns `{foo='bar'}`
* Example: `deserialize('print("foo")')`, returns `nil` (function call fails)
* `error:[string "print("foo")"]:1: attempt to call global 'print' (a nil value)`
* `minetest.compress(data, method, ...)`: returns `compressed_data`
* Compress a string of data.
* `method` is a string identifying the compression method to be used.
* Supported compression methods:
* Deflate (zlib): `"deflate"`
* `...` indicates method-specific arguments. Currently defined arguments are:
* Deflate: `level` - Compression level, `0`-`9` or `nil`.
* `minetest.decompress(compressed_data, method, ...)`: returns data
* Decompress a string of data (using ZLib).
* See documentation on `minetest.compress()` for supported compression methods.
* currently supported.
* `...` indicates method-specific arguments. Currently, no methods use this.
* `minetest.encode_base64(string)`: returns string encoded in base64
* Encodes a string in base64.
* `minetest.decode_base64(string)`: returns string
* Decodes a string encoded in base64.
Class reference
---------------
### `Settings`
An interface to read config files in the format of `minetest.conf`.
It can be created via `Settings(filename)`.
#### Methods
* `get(key)`: returns a value
* `get_bool(key)`: returns a boolean
* `set(key, value)`
* `remove(key)`: returns a boolean (`true` for success)
* `get_names()`: returns `{key1,...}`
* `write()`: returns a boolean (`true` for success)
* write changes to file
* `to_table()`: returns `{[key1]=value1,...}`
Definition tables
-----------------
### Chat command definition (`register_chatcommand`)
{
params = "<name> <privilege>", -- Short parameter description
description = "Remove privilege from player", -- Full description
privs = {privs=true}, -- Require the "privs" privilege to run
func = function(name, param), -- Called when command is run.
-- Returns boolean success and text output.
}

1
src/client.cpp
View File

@ -263,6 +263,7 @@ Client::Client(
g_settings->getBool("enable_parallax_occlusion"));
m_script = new ClientScripting(this);
m_env.setScript(m_script);
}
void Client::initMods()

16
src/client.h
View File

@ -488,13 +488,19 @@ public:
// Get event from queue. CE_NONE is returned if queue is empty.
ClientEvent getClientEvent();
bool accessDenied()
{ return m_access_denied; }
bool accessDenied() const { return m_access_denied; }
bool reconnectRequested() { return m_access_denied_reconnect; }
bool reconnectRequested() const { return m_access_denied_reconnect; }
std::string accessDeniedReason()
{ return m_access_denied_reason; }
void setFatalError(const std::string &reason)
{
m_access_denied = true;
m_access_denied_reason = reason;
}
// Renaming accessDeniedReason to better name could be good as it's used to
// disconnect client when CSM failed.
const std::string &accessDeniedReason() const { return m_access_denied_reason; }
bool itemdefReceived()
{ return m_itemdef_received; }

4
src/clientenvironment.cpp
View File

@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "clientenvironment.h"
#include "clientsimpleobject.h"
#include "clientmap.h"
#include "clientscripting.h"
#include "mapblock_mesh.h"
#include "event.h"
#include "collision.h"
@ -42,6 +43,7 @@ ClientEnvironment::ClientEnvironment(ClientMap *map, scene::ISceneManager *smgr,
m_smgr(smgr),
m_texturesource(texturesource),
m_client(client),
m_script(NULL),
m_irr(irr)
{
char zero = 0;
@ -243,6 +245,8 @@ void ClientEnvironment::step(float dtime)
}
}
m_script->environment_step(dtime);
/*
A quick draft of lava damage
*/

3
src/clientenvironment.h
View File

@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
class ClientSimpleObject;
class ClientMap;
class ClientScripting;
class ClientActiveObject;
class GenericCAO;
class LocalPlayer;
@ -75,6 +76,7 @@ public:
ClientMap & getClientMap();
Client *getGameDef() { return m_client; }
void setScript(ClientScripting *script) { m_script = script; }
void step(f32 dtime);
@ -176,6 +178,7 @@ private:
scene::ISceneManager *m_smgr;
ITextureSource *m_texturesource;
Client *m_client;
ClientScripting *m_script;
IrrlichtDevice *m_irr;
UNORDERED_MAP<u16, ClientActiveObject*> m_active_objects;
std::vector<ClientSimpleObject*> m_simple_objects;

1
src/guiEngine.h
View File

@ -139,6 +139,7 @@ private:
class GUIEngine {
/** grant ModApiMainMenu access to private members */
friend class ModApiMainMenu;
friend class ModApiSound;
public:
/**

2
src/script/clientscripting.cpp
View File

@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "client.h"
#include "cpp_api/s_internal.h"
#include "lua_api/l_client.h"
#include "lua_api/l_sound.h"
#include "lua_api/l_util.h"
ClientScripting::ClientScripting(Client *client):
@ -51,4 +52,5 @@ void ClientScripting::InitializeModApi(lua_State *L, int top)
{
ModApiUtil::InitializeClient(L, top);
ModApiClient::Initialize(L, top);
ModApiSound::Initialize(L, top);
}

18
src/script/cpp_api/s_client.cpp
View File

@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "s_client.h"
#include "s_internal.h"
#include "client.h"
void ScriptApiClient::on_shutdown()
{
@ -94,3 +95,20 @@ void ScriptApiClient::on_death()
// Call callbacks
runCallbacks(0, RUN_CALLBACKS_MODE_FIRST);
}
void ScriptApiClient::environment_step(float dtime)
{
SCRIPTAPI_PRECHECKHEADER
// Get core.registered_globalsteps
lua_getglobal(L, "core");
lua_getfield(L, -1, "registered_globalsteps");
// Call callbacks
lua_pushnumber(L, dtime);
try {
runCallbacks(1, RUN_CALLBACKS_MODE_FIRST);
} catch (LuaError &e) {
getClient()->setFatalError(std::string("Client environment_step: ") + e.what() + "\n"
+ script_get_backtrace(L));
}
}

2
src/script/cpp_api/s_client.h
View File

@ -36,5 +36,7 @@ public:
void on_damage_taken(int32_t damage_amount);
void on_hp_modification(int32_t newhp);
void on_death();
void environment_step(float dtime);
};
#endif

1
src/script/lua_api/CMakeLists.txt
View File

@ -25,4 +25,5 @@ set(common_SCRIPT_LUA_API_SRCS
set(client_SCRIPT_LUA_API_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/l_client.cpp
${CMAKE_CURRENT_SOURCE_DIR}/l_mainmenu.cpp
${CMAKE_CURRENT_SOURCE_DIR}/l_sound.cpp
PARENT_SCOPE)

3
src/script/lua_api/l_client.h
View File

@ -23,7 +23,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_base.h"
class ModApiClient : public ModApiBase
class ModApiClient:
public ModApiBase
{
private:
// get_current_modname()

31
src/script/lua_api/l_mainmenu.cpp
View File

@ -32,9 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "convert_json.h"
#include "serverlist.h"
#include "mapgen.h"
#include "sound.h"
#include "settings.h"
#include "log.h"
#include "EDriverTypes.h"
#include <IFileArchive.h>
@ -962,33 +960,6 @@ int ModApiMainMenu::l_show_file_open_dialog(lua_State *L)
return 0;
}
/******************************************************************************/
int ModApiMainMenu::l_sound_play(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
SimpleSoundSpec spec;
read_soundspec(L, 1, spec);
bool looped = lua_toboolean(L, 2);
u32 handle = engine->playSound(spec, looped);
lua_pushinteger(L, handle);
return 1;
}
/******************************************************************************/
int ModApiMainMenu::l_sound_stop(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
u32 handle = luaL_checkinteger(L, 1);
engine->stopSound(handle);
return 1;
}
/******************************************************************************/
int ModApiMainMenu::l_download_file(lua_State *L)
{
@ -1160,8 +1131,6 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
API_FCT(download_file);
API_FCT(get_modstore_details);
API_FCT(get_modstore_list);
API_FCT(sound_play);
API_FCT(sound_stop);
API_FCT(gettext);
API_FCT(get_video_drivers);
API_FCT(get_video_modes);

7
src/script/lua_api/l_mainmenu.h
View File

@ -25,7 +25,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
class AsyncEngine;
/** Implementation of lua api support for mainmenu */
class ModApiMainMenu : public ModApiBase {
class ModApiMainMenu: public ModApiBase
{
private:
/**
@ -79,10 +80,6 @@ private:
static int l_delete_favorite(lua_State *L);
static int l_sound_play(lua_State *L);
static int l_sound_stop(lua_State *L);
static int l_gettext(lua_State *L);
//gui

62
src/script/lua_api/l_sound.cpp Normal file
View File

@ -0,0 +1,62 @@
/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "l_sound.h"
#include "l_internal.h"
#include "common/c_content.h"
#include "guiEngine.h"
int ModApiSound::l_sound_play(lua_State *L)
{
SimpleSoundSpec spec;
read_soundspec(L, 1, spec);
bool looped = lua_toboolean(L, 2);
s32 handle;
if (Client *client = getClient(L))
handle = client->getSoundManager()->playSound(spec, looped);
// Main menu doesn't have access to client, use guiEngine
else
handle = getGuiEngine(L)->playSound(spec, looped);
lua_pushinteger(L, handle);
return 1;
}
int ModApiSound::l_sound_stop(lua_State *L)
{
u32 handle = luaL_checkinteger(L, 1);
if (Client *client = getClient(L))
client->getSoundManager()->stopSound(handle);
// Main menu doesn't have access to client, use guiEngine
else
getGuiEngine(L)->stopSound(handle);
return 1;
}
void ModApiSound::Initialize(lua_State *L, int top)
{
API_FCT(sound_play);
API_FCT(sound_stop);
}

36
src/script/lua_api/l_sound.h Normal file
View File

@ -0,0 +1,36 @@
/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef L_SOUND_H_
#define L_SOUND_H_
#include "lua_api/l_base.h"
class ModApiSound: public ModApiBase
{
private:
static int l_sound_play(lua_State *L);
static int l_sound_stop(lua_State *L);
public:
static void Initialize(lua_State *L, int top);
};
#endif

2
src/script/lua_api/l_util.cpp
View File

@ -530,6 +530,8 @@ void ModApiUtil::InitializeClient(lua_State *L, int top)
{
API_FCT(log);
API_FCT(get_us_time);
API_FCT(setting_set);
API_FCT(setting_get);
API_FCT(setting_setbool);

4
src/script/scripting_mainmenu.cpp
View File

@ -19,11 +19,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "scripting_mainmenu.h"
#include "mods.h"
#include "porting.h"
#include "log.h"
#include "cpp_api/s_internal.h"
#include "lua_api/l_base.h"
#include "lua_api/l_mainmenu.h"
#include "lua_api/l_sound.h"
#include "lua_api/l_util.h"
#include "lua_api/l_settings.h"
@ -63,6 +62,7 @@ void MainMenuScripting::initializeModApi(lua_State *L, int top)
// Initialize mod API modules
ModApiMainMenu::Initialize(L, top);
ModApiUtil::Initialize(L, top);
ModApiSound::Initialize(L, top);
// Register reference classes (userdata)
LuaSettings::Register(L);