jak-project/goal_src/jak2/engine/util/smush-control-h.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

111 lines
2.9 KiB
Common Lisp

;;-*-Lisp-*-
(in-package goal)
;; name: smush-control-h.gc
;; name in dgo: smush-control-h
;; dgos: ENGINE, GAME
;; DECOMP BEGINS
(deftype smush-control (structure)
((start-time time-frame)
(period float)
(duration float)
(amp float)
(damp-amp float)
(damp-period float)
(ticks float)
)
:pack-me
(:methods
(set-zero! (_type_) _type_)
(update! (_type_) float)
(get-no-update (_type_) float)
(activate! (_type_ float int int float float clock) _type_)
(nonzero-amplitude? (_type_) symbol)
(die-on-next-update! (_type_) _type_)
)
)
(defmethod nonzero-amplitude? ((this smush-control))
(!= (-> this amp) 0.0)
)
(defmethod set-zero! ((this smush-control))
(set! (-> this period) 0.0)
(set! (-> this duration) 0.0)
(set! (-> this amp) 0.0)
(set! (-> this damp-amp) 0.0)
(set! (-> this damp-period) 0.0)
(set! (-> this ticks) 0.0)
this
)
(defmethod update! ((this smush-control))
(cond
((!= (-> this amp) 0.0)
(let* ((f30-0 (the float (- (current-time) (-> this start-time))))
(f0-2 (-> this period))
(f28-0 (- f30-0 (* (the float (the int (/ f30-0 f0-2))) f0-2)))
)
(when (>= (- f30-0 (-> this ticks)) (-> this period))
(set! (-> this amp) (* (-> this amp) (-> this damp-amp)))
(set! (-> this period) (* (-> this period) (-> this damp-period)))
(set! (-> this ticks) f30-0)
(if (< (-> this damp-period) 0.0)
(set-zero! this)
)
)
(if (>= f30-0 (-> this duration))
(set-zero! this)
)
(* (sin (/ (* 65536.0 f28-0) (-> this period)))
(* (-> this amp) (/ (- (-> this duration) f30-0) (-> this duration)))
)
)
)
(else
0.0
)
)
)
(defmethod get-no-update ((this smush-control))
(cond
((!= (-> this amp) 0.0)
(let* ((f30-0 (the float (- (current-time) (-> this start-time))))
(f0-2 (-> this period))
(f0-4 (- f30-0 (* (the float (the int (/ f30-0 f0-2))) f0-2)))
)
(* (sin (/ (* 65536.0 f0-4) (-> this period)))
(* (-> this amp) (/ (- (-> this duration) f30-0) (-> this duration)))
)
)
)
(else
0.0
)
)
)
(defmethod die-on-next-update! ((this smush-control))
(if (!= (-> this amp) 0.0)
(set! (-> this damp-period) -1.0)
)
this
)
(defmethod activate! ((this smush-control) (arg0 float) (arg1 int) (arg2 int) (arg3 float) (arg4 float) (arg5 clock))
(when (>= (fabs (* 0.2 (-> this amp))) (fabs (get-no-update this)))
(set! (-> this amp) arg0)
(set! (-> this period) (the float arg1))
(set! (-> this duration) (the float arg2))
(set! (-> this damp-amp) arg3)
(set! (-> this damp-period) arg4)
(set! (-> this ticks) 0.0)
(set! (-> this start-time) (-> arg5 frame-counter))
)
this
)