So `target` has some logic here which checks if the pending attack has
the same ID as the last attack, and if so it checks for a 2s grace
period `(-> *TARGET-bank* same-attack-invulnerable-timeout)` before the
attack will actually count:
https://github.com/open-goal/jak-project/blob/7320bfc068acfa385f929b176f61caf3b7aabbbe/goal_src/jak3/engine/target/target-util.gc#L1664-L1674
This `same-attack-invulnerable-timeout` check uses `time-elapsed?`,
which under the hood references `(current-time)` AKA `(-> PP clock
frame-counter)`, which makes sense.
However the code that actually stores the `attack-time` uses a different
clock `(-> *display* base-clock frame-counter)`:
https://github.com/open-goal/jak-project/blob/7320bfc068acfa385f929b176f61caf3b7aabbbe/goal_src/jak3/engine/target/target-util.gc#L1765-L1768
So if these two clocks get out of sync - say the `target` process clock
falls behind the `*display*` clock - then we can end up storing an
`attack-time` that's "in the future" from `target`'s perspective,
effectively increasing the `same-attack-invulnerable-timeout`.
This clock drift can happen in real gameplay - Usual today was having it
happen consistently with the route he was attempting for NoOOB. I was
able to reproduce it consistently in OpenGOAL as well:
- get "invuln 2" (i.e. you have `(target-flags disable-attacks)` but not
`(focus-status dead ignore)`)
- restart mission at the top of temple before the glider mission trigger
- immediately go into the trigger and fall off the cliff (during the
black screen)
- you'll get the glider cutscene, but should respawn back at the bottom
of temple
Somewhere in this^ cutscene/blackout, the two clocks drift apart -
presumably `target`'s clock is paused but the other is not. Later in the
speedrun, this causes the extra long invuln timeout bug, which wastes
time while trying to intentionally lower health.
https://www.youtube.com/watch?v=WD2MLj8ccfg
As far as I can tell, any other code interacting with `attack-time` also
uses `(current-time)` or one of the wrapping macros like `set-time!` or
`time-elapsed?`
Migrates all code, there should be no change in the compilation output
(linter should check this)
At first i was considering making these builtins, which short of a bunch
of code generation, would require some sort of dynamic definition in
`Atoms.cpp`. This isn't hard but, i figured it would be better to keep
it simple and just generate the OG macros.
Fixes https://github.com/open-goal/jak-project/issues/233
Major change to how `deftype` shows up in our code:
- the decompiler will no longer emit the `offset-assert`,
`method-count-assert`, `size-assert` and `flag-assert` parameters. There
are extremely few cases where having this in the decompiled code is
helpful, as the types there come from `all-types` which already has
those parameters. This also doesn't break type consistency because:
- the asserts aren't compared.
- the first step of the test uses `all-types`, which has the asserts,
which will throw an error if they're bad.
- the decompiler won't emit the `heap-base` parameter unless necessary
now.
- the decompiler will try its hardest to turn a fixed-offset field into
an `overlay-at` field. It falls back to the old offset if all else
fails.
- `overlay-at` now supports field "dereferencing" to specify the offset
that's within a field that's a structure, e.g.:
```lisp
(deftype foobar (structure)
((vec vector :inline)
(flags int32 :overlay-at (-> vec w))
)
)
```
in this structure, the offset of `flags` will be 12 because that is the
final offset of `vec`'s `w` field within this structure.
- **removed ID from all method declarations.** IDs are only ever
automatically assigned now. Fixes#3068.
- added an `:overlay` parameter to method declarations, in order to
declare a new method that goes on top of a previously-defined method.
Syntax is `:overlay <method-name>`. Please do not ever use this.
- added `state-methods` list parameter. This lets you quickly specify a
list of states to be put in the method table. Same syntax as the
`states` list parameter. The decompiler will try to put as many states
in this as it can without messing with the method ID order.
Also changes `defmethod` to make the first type definition (before the
arguments) optional. The type can now be inferred from the first
argument. Fixes#3093.
---------
Co-authored-by: Hat Kid <6624576+Hat-Kid@users.noreply.github.com>
This renames the method object in `defmethod`s to `this` and adds
detection for the `set-time!` and `time-elapsed?` macros.
Definitely my biggest PR yet...
This PR adds detection of the `launch-particles` and `seconds-per-frame`
macros to the decompiler, removing a lot of bloat and hiding many
process register uses.
I also added `og:preserve-this` comments to as many manual patches and
comments as I could, which will soon be used in conjunction with CI to
hopefully catch any regressions in future big decomp update PRs.
I have some concerns about the `launch-particles` macro (more details in
`sparticle-launcher.gc`) , but thus far, I have not seen anything break
yet.
---------
Co-authored-by: water <awaterford111445@gmail.com>
Fixes empty boxed arrays of strings breaking some decomp
(`ctywide-speech` and `race-info`).
Adds `decomp-as` tag to decompiler types so that the static data
decompiler can use macros like `meters` and `seconds` on fields that
aren't of type `meters` or `time-frame`.
Adds `override` tag to decompiler types which overrides the type of
field with that name. The type must be a child type of the original
field's type (or the same type, but why would you do this?).
Fixes the camera being offset for `drillmtn` after loading `palout`
once.
This is a huge refactor sadly.
There are *a lot* of file changes and while I have carefully gone
through every gsrc change to fix up manual patches, there might still be
spots that I missed.
Almost done:
- `target-handler` (`(none)` event handler casts and CFG error)
- `target2` (`(none)` event handler casts)
- `powerups` (`cloud-track` does some weird stuff with `handle`s)
- `gun-states` (CFG error)
Some progress in:
- `water-flow`
Additionally:
- Clean up the two year old Jak 3 config file and add a config skeleton
(disassembling seems to not have worked, but I was able to dump obj
files and the `all_scripts` file)
- Fix automatic skelgroup detection and `defskelgroup` macro for Jak 2
(closes#1950)
- When a function decompiles without any major errors, a warning is
generated with the op id for each unresolved load and store that will
likely fail to compile (closes#1933)
Matt Dallmeyer
