jak-project/goal_src/jakx/engine/collide/collide-touch-h.gc

;;-*-Lisp-*-
(in-package goal)

;; name: collide-touch-h.gc
;; name in dgo: collide-touch-h
;; dgos: ENGINE, GAME

;; DECOMP BEGINS

(deftype touching-prim (structure)
  "A collide primitive that's touching another.
Potentially also stores the triangle that is involved."
  ((cprim     collide-shape-prim)
   (has-tri?  symbol)
   (tri       collide-tri-result  :inline)
   )
  )


(deftype touching-prims-entry (structure)
  "A record of two primitives touching."
  ((next        touching-prims-entry)
   (prev        touching-prims-entry)
   (allocated?  symbol)
   (u           float)
   (prim1       touching-prim  :inline)
   (prim2       touching-prim  :inline)
   )
  (:methods
    (touching-prims-entry-method-9 (_type_ vector) vector)
    (get-middle-of-bsphere-overlap (_type_ vector) vector)
    (get-touched-prim (_type_ collide-shape touching-shapes-entry) collide-shape-prim)
    (get-touched-tri (_type_ collide-shape touching-shapes-entry) collide-tri-result)
    )
  )


(deftype touching-prims-entry-pool (structure)
  "A pool of up to 64 touching prim records."
  ((head   touching-prims-entry)
   (nodes  touching-prims-entry  64 :inline)
   )
  (:methods
    (new (symbol type) _type_)
    (alloc-node (_type_) touching-prims-entry)
    (get-free-node-count (_type_) int)
    (init-list! (_type_) none)
    (free-node (_type_ touching-prims-entry) touching-prims-entry)
    )
  )


(defmethod init-list! ((this touching-prims-entry-pool))
  (let ((prev (the-as touching-prims-entry #f)))
    (let ((current (the-as touching-prims-entry (-> this nodes))))
      (set! (-> this head) current)
      (countdown (a0-1 64)
        (set! (-> current prev) prev)
        (let ((next (&+ current 240)))
          (set! (-> current next) (the-as touching-prims-entry next))
          (set! (-> current allocated?) #f)
          (set! prev current)
          (set! current (the-as touching-prims-entry next))
          )
        )
      )
    (set! (-> prev next) #f)
    )
  0
  (none)
  )

;; WARN: Return type mismatch structure vs touching-prims-entry-pool.
(defmethod new touching-prims-entry-pool ((allocation symbol) (type-to-make type))
  (let ((t9-0 (method-of-type structure new))
        (v1-1 type-to-make)
        )
    (-> type-to-make size)
    (let ((gp-0 (t9-0 allocation v1-1)))
      ((method-of-type touching-prims-entry-pool init-list!) (the-as touching-prims-entry-pool gp-0))
      (the-as touching-prims-entry-pool gp-0)
      )
    )
  )

(deftype touching-shapes-entry (structure)
  "A record of two collide shapes touching,
storing a record of the primitives involved."
  ((cshape1    collide-shape)
   (cshape2    collide-shape)
   (resolve-u  int8)
   (head       touching-prims-entry)
   (handle1    handle)
   (handle2    handle)
   )
  :pack-me
  (:methods
    (get-head (_type_) touching-prims-entry)
    (get-next (_type_ touching-shapes-entry) touching-prims-entry)
    (get-touched-shape (_type_ collide-shape) collide-shape)
    (prims-touching? (_type_ collide-shape uint) touching-prims-entry)
    (prims-touching-action? (_type_ collide-shape collide-action collide-action) basic)
    (free-touching-prims-list (_type_) none)
    )
  )


(deftype touching-list (structure)
  "Contains a record of touching collide shape pairs."
  ((num-touching-shapes  int32)
   (resolve-u            int8)
   (touching-shapes      touching-shapes-entry  32 :inline)
   )
  (:methods
    (new (symbol type) _type_)
    (add-touching-prims (_type_ collide-shape-prim collide-shape-prim float collide-tri-result collide-tri-result) none)
    (free-nodes (_type_) none)
    (update-from-step-size (_type_ float) none)
    (send-events-for-touching-shapes (_type_) none)
    (get-shapes-entry (_type_ collide-shape collide-shape) touching-shapes-entry)
    )
  )


;; WARN: Return type mismatch structure vs touching-list.
(defmethod new touching-list ((allocation symbol) (type-to-make type))
  (let ((t9-0 (method-of-type structure new))
        (v1-1 type-to-make)
        )
    (-> type-to-make size)
    (let ((v0-0 (t9-0 allocation v1-1)))
      (set! (-> (the-as touching-list v0-0) num-touching-shapes) 0)
      (set! (-> (the-as touching-list v0-0) resolve-u) 0)
      (the-as touching-list v0-0)
      )
    )
  )

(defmethod get-head ((this touching-shapes-entry))
  (-> this head)
  )

;; WARN: Return type mismatch collide-shape vs touching-prims-entry.
(defmethod get-next ((this touching-shapes-entry) (arg0 touching-shapes-entry))
  (the-as touching-prims-entry (-> arg0 cshape1))
  )

(kmemopen global "collide-touching-lists")

(define-perm *touching-prims-entry-pool* touching-prims-entry-pool (new 'global 'touching-prims-entry-pool))

(define-perm *touching-list* touching-list (new 'global 'touching-list))

(kmemclose)