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Author SHA1 Message Date
Ghom 778ed9f1ab The death or internal/external organ pathing (ft. fixed fox ears and recoloring bodypart overlays with dye sprays) (#87434)
## About The Pull Request
This PR kills the abstract internal and external typepaths for organs,
now replaced by an EXTERNAL_ORGAN flag to distinguish the two kinds.

This PR also fixes fox ears (from #87162, no tail is added) and
mushpeople's caps (they should be red, the screenshot is a tad
outdated).

And yes, you can now use a hair dye spray to recolor body parts like
most tails, podpeople hair, mushpeople caps and cat ears. The process
can be reversed by using the spray again.

## Why It's Good For The Game
Time-Green put some effort during the last few months to untie functions
and mechanics from external/internal organ pathing. Now, all that this
pathing is good for are a few typechecks, easily replaceable with
bitflags.

Also podpeople and mushpeople need a way to recolor their "hair". This
kind of applies to fish tails from the fish infusion, which colors can't
be selected right now. The rest is just there if you ever want to
recolor your lizard tail for some reason.

Proof of testing btw (screenshot taken before mushpeople cap fix, right
side has dyed body parts, moth can't be dyed, they're already fabolous):

![immagine](https://github.com/user-attachments/assets/2bb625c9-9233-42eb-b9b8-e0bd6909ce89)

## Changelog

🆑
code: Removed internal/external pathing from organs in favor of a bit
flag. Hopefully this shouldn't break anything about organs.
fix: Fixed invisible fox ears.
fix: Fixed mushpeople caps not being colored red by default.
add: You can now dye most tails, podpeople hair, mushpeople caps etc.
with a hair dye spray.
/🆑
2024-10-30 08:03:02 +01:00
LemonInTheDark 2e5bfe5be6 Refactors and optimizes breath code (Saves 12% of carbon/Life()) (#74230)
## About The Pull Request

### How things work

As things currently stand, when a mob breaths several things happen
(simplified to focus on the stupid)

We assert the existance of all possible breathable gases, and pull
partial pressures for them
Then we walk through all possible interactions lungs could have with
these gases, one by one, and see if they're happening or not
As we go we are forced to cleanup potential alerts caused by the
previous breath, even if those effects never actually happen
At the end we clear out all the unused gas ids, and handle the
temperature of the breath.

### What sucks

There's I'd say 3 different types of gas reactions.

- You can "need" a gas to survive. o2, n2 and plasma all fall into this
category
- A gas can do something to you while it's in your system. This applies
to most gas types
- Variation on the previous, some gases do cleanup when they're not in
your system, or when there isn't much of them in the first place

The main headache here is that second one, constantly cleaning up
potential side effects sucks, and fixing it would require a lot of dummy
variables

There's other suckage too.

Needing to constantly check for a gas type even if it isn't there is
stupid, and leads to wasted time It's also really annoying to do
subtypes in this system.
There is what amounts to a hook proc you can override, but you can't
override the reaction to a gas type.
It also just like, sucks to add new gases. one mega proc smells real
stupid.

### Improvements

In the interest of speed:

- I'd like to build a system that doesn't require manually checking for
gas
- Reacting to gas "disappearing" should be promoted by the system,
instead of being hacky.
- I would like to avoid needing to assert the existence of all possible
gases, as this is slow on both the assert and the garbage collect.

In the interest of dev ergonomics:

- It should be easy to define a new gas reaction 
- It should be easy for subtypes to implement their own gas reactions.
The current method of vars on the lung is all tangled up and not really
undoable as of now, but I'd like to not require it
- It should be possible to fully override how a gas is handled

### What I've Done

Lungs have 3 lists of proc paths stored on them

Each list handles a different way the lung might want to interact with a
gas.
There's a list for always processing on a gas (we use this for stuff
that's breathed), a list for handling a gas in our breath, and a list
for reacting to a gas previously being in our breath, but not any more.

Lungs fill out these lists using a helper proc during Initialize()
Then, when it comes time to breath, we loop over the gas in the breath
and react to it.
We also keep track of the previous list of partial pressures, which we
calculate for free here, and use that to figure out when to call the
loss reactions.

This proc pattern allows for overrides, easy reactions to removals,
lower indentation code and early returns, and better organization of
signal handlers

It's also significantly faster. Ballpark 4x faster

### Misc

Removes support for breathing co2, and dying from n2 poisoning. 
They were both unused, and I think it's cringe to clutter these procs
even further

Added "do we even have oxyloss" checks to most cases of passive
breathing.
This is a significant save, since redundant adjustoxy's are decently
expensive at the volume of calls we have here.

Fixes a bug with breathing out if no gas is passed in, assigning a var
to another var doesn't perform a copy

Rewrote breathe_gas_volume() slightly to insert gas into an immutable
mix stored on the lung, rather then one passed in
This avoids passing of a gas_mixture around just to fill a hole. 

I may change my mind on this, since it would be nice to have support for
temperature changing from a hot/cold breath.
Not gonna be done off bodytemp tho lord no.

Uses merge() instead of a hard coded version to move the gas ids over. 
This is slightly slower with lower gas counts but supports more things
in future and is also just easier to read.

## Why It's Good For The Game

Faster, easier to work with and read (imo)

Profiles: 

[breath_results_old.txt](https://github.com/tgstation/tgstation/files/11068247/breath_results_old.txt)

[breath_results_pre_master.txt](https://github.com/tgstation/tgstation/files/11068248/breath_results_new.txt)

[breath_results_new.txt](https://github.com/tgstation/tgstation/files/11068349/breath_results_new.txt)

(These profiles were initially missing #73026. Merging this brings the
savings from 16% to 12%. Life is pain)

---------

Co-authored-by: san7890 <the@san7890.com>
2023-03-26 00:21:05 -06:00
Dani Glore f9fe79a307 Organ Unit Tests & Bugfixes (#73026)
## About The Pull Request

This PR adds a new unit test for all organs, a new unit test for lungs,
and includes improvements for the existing breath and organ_set_bonus
tests. Using the tests, I was able to root out bugs in the organs. This
PR includes an advanced refactor of several developer-facing functions.
This PR certainly represents a "quality pass" for organs which will make
them easier to develop from now on.

### Synopsis of changes:
1. Fixed many fundamental bugs in organ code, especially in
`Insert()`/`Remove()` and their overrides.
2. Added two new procs to `/obj/item/organ` named `on_insert` and
`on_remove`, each being called after `Insert()`/`Remove()`.
3. Added `organ_effects` lazylist to `/obj/item/organ`. Converted
`organ_traits` to lazylist. 2x less empty lists per organ.
4. Adding `SHOULD_CALL_PARENT(TRUE)` to `Insert()`/`Remove()` was very
beneficial to stability and overall code health.
5. Created unit test `organ_sanity` for all usable organs in the game.
Tests insertion and removal.
6. Created unit test `lungs_sanity` for
`/obj/item/organ/internal/lungs`.
7. Improved `breath_sanity` unit tests with additional tests and
conditions.
8. Improved `organ_set_bonus_sanity` unit tests with better
documentation and maintainable code.

---

### Granular bug/fix list:

- A lot of organs are overriding `Insert()` to apply unique
side-effects, but aren't checking the return value of the parent proc
which causes the activation of side-effects even if the insertion
technically fails. I noticed the use-case of applying "unique
side-effects" is repeated across a lot of organs in the game, and by
overriding `Insert()` the potential for bugs is very high; I solved this
problem with inversion-of-control by adding two new procs to
`/obj/item/organ` named `on_insert` and `on_remove`, each being called
after `Insert()` and `Remove()` succeed.
- Many organs, such as abductor "glands", cursed heart, demon heart,
alien hive-node, alien plasma-vessel, etc, were not returning their
parent's `Insert()` proc return value at all, and as a result those
organs `Insert()`s were always returning `null`. I have been mopping
those bugs up in my last few PRs, and now the unit test reveals it all.
Functions such as those in surgery expect a truthy value to be returned
from `Insert()` to represent insertion success, and otherwise it
force-moves the organ out of the mob.
- Fixed abductor "glands" which had a hard-del bug due to their
`Remove()` not calling the parent proc.
- Fixed cybernetic arm implants which had a hard-del bug due to
`Remove()` not resetting their `hand` variable to `null`.
- Fixed lungs gas exchange implementation, which was allowing exhaled
gases to feedback into the inhaled gases, which caused Humans to inhale
much more gas than intended and not exhale expected gases.

### Overview of the `organ_sanity` unit test:

- The new `organ_sanity` unit test gathers all "usable" organs in the
game and tests to see if their `Insert()` and `Remove()` functions
behave as we expect them to.
- Some organs, such as the Nightmare Brain, cause the mob's species to
change which subsequently swaps out all of their organs; the unit test
accounts for these organs via the typecache `species_changing_organs`.
- Some organs are not usable in-game and can't be unit tested, so the
unit test accounts for them via the typecache `test_organ_blacklist`.

### Overview of the `lungs_sanity` unit test:

- This unit test focuses on `/obj/item/organ/internal/lungs` including
Plasmaman and Ashwalker lungs. The test focuses on testing the lungs'
`check_breath()` proc.
- The tests are composed of calling `check_breath` with different gas
mixes to test breathing and suffocation.
- Includes gas exchange test for inhaled/exhaled gases, such as O2 to
CO2.

### Improvements to the `breath_sanity` unit tests:

- Added additional tests for suffocation with empty internals, pure
Nitrogen internals, and a gas-less turf.
- Includes slightly more reliable tests for internals tanks.

## Why It's Good For The Game

**Organs and Lungs were mostly untested. Too many refactors have been
submitted without the addition of unit tests to prove the code works at
all.** Time to stop. _Time to get some help_. Due to how bad the code
health is in organs, any time we've tried to work with them some sort of
bug caused them to blow up in our faces. I am trying to fix some of that
by establishing some standard testing for organs. These tests have
revealed and allowed me to fix lot of basic developer errors/oversights,
as well as a few severe bugs.


![image](https://user-images.githubusercontent.com/17753498/220251281-07ef598f-355b-43a9-afd6-1de9690831da.png)

## Changelog

🆑 A.C.M.O.
fix: Fixed lungs gas exchange implementation, so you always inhale and
exhale the correct gases.
fix: Fixed a large quantity of hard-deletes which were being caused by
organs and cybernetic organs.
fix: Fixed many organs which were applying side-effects regardless of
whether or not the insertion failed.
code: Added unit tests for Organs.
code: Added unit tests for Lungs.
code: Improved unit tests for breathing.
code: Improved unit tests for DNA Infuser organs.
/🆑
2023-03-18 17:20:28 -07:00