Commit Graph

21 Commits

Author SHA1 Message Date
Lars Müller
050964bed6
Fix inventory swapping not calling all callbacks (#9923)
"Predicts" whether something will be swapped for allow callbacks, then calls callbacks a second time with swapped properties.

Co-authored-by: SmallJoker <SmallJoker@users.noreply.github.com>
2020-09-04 20:49:07 +02:00
SmallJoker
720aedb467 InventoryManager: Fix virtual function overload warning 2019-09-09 20:35:45 +02:00
Jozef Behran
eb2bda7d0b Optimize string (mis)handling (#8128)
* Optimize statbar drawing

The texture name of the statbar is a string passed by value.
That slows down the client and creates litter in the heap
as the content of the string is allocated there. Convert the
offending parameter to a const reference to avoid the
performance hit.

* Optimize texture cache

There is an unnecessary temporary created when the texture
path is being generated. This slows down the cache each time
a new texture is encountered and it needs to be loaded into
the cache. Additionally, the heap litter created by this
unnecessary temporary is particularly troublesome here as
the following code then piles another string (the resulting
full path of the texture) on top of it, followed by the
texture itself, which both are quite long term objects as
they are subsequently inserted into the cache where they can
remain for quite a while (especially if the texture turns
out to be a common one like dirt, grass or stone).

Use std::string.append to get rid of the temporary which
solves both issues (speed and heap fragmentation).

* Optimize animations in client

Each time an animated node is updated, an unnecessary copy of
the texture name is created, littering the heap with lots of
fragments. This can be specifically troublesome when looking
at oceans or large lava lakes as both of these nodes are
usually animated (the lava animation is pretty visible).
Convert the parameter of GenericCAO::updateTextures to a
const reference to get rid of the unnecessary copy.

There is a comment stating "std::string copy is mandatory as
mod can be a class member and there is a swap on those class
members ... do NOT pass by reference", reinforcing the
belief that the unnecessary copy is in fact necessary.
However one of the first things the code of the method does
is to assign the parameter to its class member, creating
another copy. By rearranging the code a little bit this
"another copy" can then be used by the subsequent code,
getting rid of the need to pass the parameter by value and
thus saving that copying effort.

* Optimize chat console history handling

The GUIChatConsole::replaceAndAddToHistory was getting the
line to work on by value which turns out to be unnecessary.
Get rid of that unnecessary copy by converting the parameter
to a const reference.

* Optimize gui texture setting

The code used to set the texture for GUI components was
getting the name of the texture by value, creating
unnecessary performance bottleneck for mods/games with
heavily textured GUIs. Get rid of the bottleneck by passing
the texture name as a const reference.

* Optimize sound playing code in GUIEngine

The GUIEngine's code receives the specification of the sound
to be played by value, which turns out to be most likely a
mistake as the underlying sound manager interface receives
the same thing by reference. Convert the offending parameter
to a const reference to get rid of the rather bulky copying
effort and the associated performance hit.

* Silence CLANG TIDY warnings for unit tests

Change "std::string" to "const std::string &" to avoid an
unnecessary local value copy, silencing the CLANG TIDY
process.

* Optimize formspec handling

The "formspec prepend" parameter was passed to the formspec
handling code by value, creating unnecessary copy of
std::string and slowing down the game if mods add things like
textured backgrounds for the player inventory and/or other
forms. Get rid of that performance bottleneck by converting
the parameter to a const reference.

* Optimize hotbar image handling

The code that sets the background images for the hotbar is
getting the name of the image by value, creating an
unnecessary std::string copying effort. Fix that by
converting the relevant parameters to const references.

* Optimize inventory deserialization

The inventory manager deserialization code gets the
serialized version of the inventory by value, slowing the
server and the client down when there are inventory updates.
This can get particularly troublesome with pipeworks which
adds nodes that can mess around with inventories
automatically or with mods that have mobs with inventories
that actively use them.

* Optimize texture scaling cache

There is an io::path parameter passed by value in the
procedure used to add images converted from textures,
leading to slowdown when the image is not yet created and
the conversion is thus needed. The performance hit is
quite significant as io::path is similar to std::string
so convert the parameter to a const reference to get rid of
it.

* Optimize translation file loader

Use "std::string::append" when calculating the final index
for the translation table to avoid unnecessary temporary
strings. This speeds the translation file loader up
significantly as std::string uses heap allocation which
tends to be rather slow. Additionally, the heap is no
longer being littered by these unnecessary string
temporaries, increasing performance of code that gets
executed after the translation file loader finishes.

* Optimize server map saving

When the directory structure for the world data is created
during server map saving, an unnecessary value passing of
the directory name slows things down. Remove that overhead
by converting the offending parameter to a const reference.
2019-05-18 17:19:13 +02:00
SmallJoker
9fa547bb80 Run callback in IDropAction, refactor function arguments 2018-04-02 17:18:48 +02:00
Loic Blot
1d086aee7c
Modernize various files (part 2)
* range-based for loops
* emplace_back instead of push_back
* code style
* C++ headers instead of C headers
* Default operators
* empty stl function
2017-08-18 08:07:59 +02:00
Loïc Blot
921151d97a C++ modernize: Pragma once (#6264)
* Migrate cpp headers to pragma once
2017-08-17 22:19:39 +02:00
Vincent Glize
c772e0e18c C++11 cleanup inventorymanager (#6077)
* C++11 cleanup inventorymanager
2017-07-01 14:07:40 +02:00
est31
7bbb9b066a MoveItemSomewhere double bugfix
-> Fix bug where MoveSomewhere from an infinite source would fill the destination inventory with copies of itself.
-> Fix bug where MoveSomewhere would needlessly call callbacks.
-> Remove trailing whitespaces
2015-07-19 06:23:41 +02:00
est31
2c1fd29884 Add MoveSomewhere inventory action
Improve shift+click experience
2015-06-23 20:18:41 +02:00
TeTpaAka
17ba584fe2 Fix bug when craft input isn't replaced 2015-06-22 19:30:35 +02:00
Loic Blot
7851c4f7a2 Don't send an InventoryAction at each setInventoryModified, we only need one SendInventory per inventory modification
Client doesn't like to receive multiples SendInventory for one action, this can trigger glitches on clients (sometimes due to incorrect UDP packet ordering due to UDP protocol)

This fix issue #2544
2015-03-24 14:13:17 +01:00
Sfan5
6d0ea26c2d Update Copyright Years 2013-02-24 20:15:24 +01:00
PilzAdam
497ff1ecd6 Change Minetest-c55 to Minetest 2013-02-24 18:49:03 +01:00
Perttu Ahola
e1a495ee30 Make inventory GUI do sane things when server-side inventory acts unusually 2012-09-02 22:51:38 +03:00
Perttu Ahola
2ac20982e0 Detached inventories 2012-07-24 20:57:17 +03:00
Perttu Ahola
037b259197 Switch the license to be LGPLv2/later, with small parts still remaining as GPLv2/later, by agreement of major contributors 2012-06-05 18:54:07 +03:00
Giuseppe Bilotta
64af6d3afe Fix some warnings on some compilers
ItemStack is a struct, not a class
CollisionInfo is a struct, not a class
InventoryAction is abstract and it needs a virtual destructor
2012-02-02 15:54:20 +02:00
Kahrl
b4dd5d3bd7 Client-side prediction of inventory changes, and some inventory menu fixes 2012-01-22 17:31:20 +02:00
Kahrl
1efdc36b22 Inventory menu (with dragging) improved. Crafting is now handled via a IACTION_CRAFT inventory action. 2012-01-22 17:31:12 +02:00
Kahrl
6a76c226e1 The huge item definition and item namespace unification patch (itemdef), see http://c55.me/minetest/wiki/doku.php?id=changes:itemdef 2012-01-12 06:10:39 +01:00
Perttu Ahola
103173fc9b Add InvRef and InvStack (currently untested and unusable) 2012-01-02 01:49:38 +02:00