jak-project/goal_src/jak2/engine/draw/drawable-group.gc
ManDude cd68cb671e
deftype and defmethod syntax major changes (#3094)
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>
2023-10-30 03:20:02 +00:00

99 lines
2.5 KiB
Common Lisp

;;-*-Lisp-*-
(in-package goal)
;; name: drawable-group.gc
;; name in dgo: drawable-group
;; dgos: ENGINE, GAME
;; DECOMP BEGINS
(defmethod new drawable-group ((allocation symbol) (type-to-make type) (length int))
"Create a new [[drawable-group]] which can hold the provided number of [[drawable]]s"
(let ((new-obj (object-new allocation type-to-make (the-as int (+ (-> type-to-make size) (* length 4))))))
(set! (-> new-obj length) length)
new-obj
)
)
(defmethod print ((this drawable-group))
(format #t "#<~A @ #x~X [~D]" (-> this type) this (-> this length))
(dotimes (idx (-> this length))
(format #t " ~A" (-> this data idx))
)
(format #t ">")
this
)
(defmethod length ((this drawable-group))
(-> this length)
)
;; WARN: Return type mismatch uint vs int.
(defmethod asize-of ((this drawable-group))
(the-as int (+ (-> drawable-group size) (* (-> this length) 4)))
)
(defmethod mem-usage ((this drawable-group) (arg0 memory-usage-block) (arg1 int))
(set! (-> arg0 length) (max 1 (-> arg0 length)))
(set! (-> arg0 data 0 name) "drawable-group")
(+! (-> arg0 data 0 count) 1)
(let ((obj-size (asize-of this)))
(+! (-> arg0 data 0 used) obj-size)
(+! (-> arg0 data 0 total) (logand -16 (+ obj-size 15)))
)
(dotimes (idx (-> this length))
(mem-usage (-> this data idx) arg0 arg1)
)
this
)
(defmethod login ((this drawable-group))
(dotimes (idx (-> this length))
(login (-> this data idx))
)
this
)
(defmethod draw ((this drawable-group) (arg0 drawable-group) (arg1 display-frame))
(when (vis-cull (-> this id))
(when (sphere-cull (-> this bsphere))
(dotimes (idx (-> this length))
(draw (-> this data idx) (-> arg0 data idx) arg1)
)
)
)
0
(none)
)
(defmethod collect-stats ((this drawable-group))
(when (vis-cull (-> this id))
(when (sphere-cull (-> this bsphere))
(dotimes (idx (-> this length))
(collect-stats (-> this data idx))
)
)
)
0
(none)
)
(defmethod debug-draw ((this drawable-group) (arg0 drawable) (arg1 display-frame))
(when (vis-cull (-> this id))
(when (sphere-cull (-> this bsphere))
(dotimes (idx (-> this length))
(debug-draw (-> this data idx) (-> (the-as drawable-group arg0) data idx) arg1)
)
)
)
0
(none)
)
(defmethod unpack-vis ((this drawable-group) (arg0 (pointer int8)) (arg1 (pointer int8)))
(dotimes (idx (-> this length))
(set! arg1 (unpack-vis (-> this data idx) arg0 arg1))
)
arg1
)