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

;; name: region.gc
;; name in dgo: region
;; dgos: ENGINE, GAME

;; DECOMP BEGINS

;; WARN: Return type mismatch int vs drawable-region-prim.
(defmethod mem-usage drawable-region-prim ((obj drawable-region-prim) (arg0 memory-usage-block) (arg1 int))
  (set! (-> arg0 length) (max 50 (-> arg0 length)))
  (set! (-> arg0 data 49 name) "region")
  (+! (-> arg0 data 49 count) 1)
  (let ((v1-6 (asize-of obj)))
    (+! (-> arg0 data 49 used) v1-6)
    (+! (-> arg0 data 49 total) (logand -16 (+ v1-6 15)))
    )
  (mem-usage (-> obj region) arg0 (logior arg1 128))
  (the-as drawable-region-prim 0)
  )

;; WARN: Return type mismatch int vs drawable-inline-array-region-prim.
(defmethod mem-usage drawable-inline-array-region-prim ((obj drawable-inline-array-region-prim) (arg0 memory-usage-block) (arg1 int))
  (set! (-> arg0 length) (max 1 (-> arg0 length)))
  (set! (-> arg0 data 0 name) (symbol->string 'drawable-group))
  (+! (-> arg0 data 0 count) 1)
  (let ((v1-7 32))
    (+! (-> arg0 data 0 used) v1-7)
    (+! (-> arg0 data 0 total) (logand -16 (+ v1-7 15)))
    )
  (dotimes (s3-0 (-> obj length))
    (mem-usage (-> obj data s3-0) arg0 arg1)
    )
  (the-as drawable-inline-array-region-prim 0)
  )

(defmethod draw drawable-tree-region-prim ((obj drawable-tree-region-prim) (arg0 drawable-tree-region-prim) (arg1 display-frame))
  0
  (none)
  )

(defmethod unpack-vis drawable-tree-region-prim ((obj drawable-tree-region-prim) (arg0 (pointer int8)) (arg1 (pointer int8)))
  arg1
  )

(defmethod collect-regions drawable-region-prim ((obj drawable-region-prim) (area-of-interest sphere) (_count int) (region-list region-prim-list))
  "Determines the number of [[drawable]]s in the `obj` that overlap the given `area-of-interest` this number is stored in the `region-list`'s item count
       @param area-of-interest The area defined by a sphere that we care about overlaps
       @param _count The amount of [[drawable]]s in the object to enumerate through
       @param! region-list Stores the overlapping regions and a count for how many were found
       @returns none"
  (dotimes (count _count)
    (when (spheres-overlap? area-of-interest (the-as sphere (-> obj bsphere)))
      (set! (-> region-list items (-> region-list num-items)) obj)
      (+! (-> region-list num-items) 1)
      )
    (&+! obj 32)
    )
  0
  (none)
  )

(defmethod collect-regions drawable-inline-array-region-prim ((obj drawable-inline-array-region-prim) (arg0 sphere) (arg1 int) (arg2 region-prim-list))
  "Determines the number of [[drawable]]s in the `obj` that overlap the given `area-of-interest` this number is stored in the `region-list`'s item count
       @param area-of-interest The area defined by a sphere that we care about overlaps
       @param _count The amount of [[drawable]]s in the object to enumerate through
       @param! region-list Stores the overlapping regions and a count for how many were found
       @returns none"
  (collect-regions (the-as drawable-region-prim (-> obj data)) arg0 (-> obj length) arg2)
  0
  (none)
  )

(defmethod collect-regions drawable-tree-region-prim ((obj drawable-tree-region-prim) (arg0 sphere) (arg1 int) (arg2 region-prim-list))
  "Determines the number of [[drawable]]s in the `obj` that overlap the given `area-of-interest` this number is stored in the `region-list`'s item count
       @param area-of-interest The area defined by a sphere that we care about overlaps
       @param _count The amount of [[drawable]]s in the object to enumerate through
       @param! region-list Stores the overlapping regions and a count for how many were found
       @returns none"
  (collect-regions (-> obj data2 0) arg0 (-> obj length) arg2)
  0
  (none)
  )

(defmethod debug-draw-region drawable-region-prim ((obj drawable-region-prim) (arg0 int))
  (local-vars (sv-32 vector2h) (sv-36 vector))
  (set! sv-32 (new 'stack 'vector2h))
  (set! sv-36 (-> obj bsphere))
  (add-debug-x #t (bucket-id debug-no-zbuf1) sv-36 (new 'static 'rgba :r #xff :g #xff :a #x80))
  (when (nonzero? (-> obj region))
    (let ((s5-0 add-debug-text-3d)
          (s4-0 #t)
          (s3-0 318)
          )
      (format (clear *temp-string*) "region-~D~%" (-> obj region id))
      (s5-0 s4-0 (the-as bucket-id s3-0) *temp-string* sv-36 (font-color #dadada) sv-32)
      )
    (set! (-> sv-32 y) (the-as int (+ (-> sv-32 y) 8)))
    (let ((s5-1 (-> obj region on-enter)))
      (when s5-1
        (let ((s4-1 add-debug-text-3d)
              (s3-1 #t)
              (s2-1 318)
              )
          (format (clear *temp-string*) "(on-enter ~S)" s5-1)
          (s4-1 s3-1 (the-as bucket-id s2-1) *temp-string* sv-36 (font-color #dadada) sv-32)
          )
        (set! (-> sv-32 y) (the-as int (+ (-> sv-32 y) 8)))
        )
      )
    (let ((s5-2 (-> obj region on-inside)))
      (when s5-2
        (let ((s4-2 add-debug-text-3d)
              (s3-2 #t)
              (s2-2 318)
              )
          (format (clear *temp-string*) "(on-inside ~S)" s5-2)
          (s4-2 s3-2 (the-as bucket-id s2-2) *temp-string* sv-36 (font-color #dadada) sv-32)
          )
        (set! (-> sv-32 y) (the-as int (+ (-> sv-32 y) 8)))
        )
      )
    (let ((gp-1 (-> obj region on-exit)))
      (when gp-1
        (let ((s5-3 add-debug-text-3d)
              (s4-3 #t)
              (s3-3 318)
              )
          (format (clear *temp-string*) "(on-exit ~S)" gp-1)
          (s5-3 s4-3 (the-as bucket-id s3-3) *temp-string* sv-36 (font-color #dadada) sv-32)
          )
        (set! (-> sv-32 y) (the-as int (+ (-> sv-32 y) 8)))
        )
      )
    )
  0
  (none)
  )

(defmethod track-region drawable-region-prim ((obj drawable-region-prim) (arg0 region-prim-area))
  "TODO"
  #f
  )

(defmethod within-area? drawable-region-prim ((obj drawable-region-prim) (arg0 region-prim-area))
  "@returns Whether or not the object overlaps with the provided [[region-prim-area]]'s extent"
  #f
  )

;; WARN: Function (method 9 region-prim-area) has a return type of none, but the expression builder found a return statement.
(defmethod track-entered-region! region-prim-area ((obj region-prim-area) (region-sphere drawable-region-sphere))
  "Enumerates through the objects `region-enter-list`, if we find the provided `region`, do nothing and exit
       otherwise, add the [[drawable-region-sphere]] to `region-enter-prim-list` and increment `region-enter-count`

       @param region-sphere Defines the region in question
       @returns nothing"
  (let ((regions-entered (-> obj region-enter-count)))
    (let ((region (-> region-sphere region)))
      (countdown (idx regions-entered)
        (if (= (-> obj region-enter-list idx) region)
            (return #f)
            )
        )
      (set! (-> obj region-enter-list regions-entered) (the-as region-prim-area region))
      )
    (set! (-> obj region-enter-prim-list regions-entered) region-sphere)
    (set! (-> obj region-enter-count) (+ regions-entered 1))
    )
  0
  (none)
  )

;; WARN: Function (method 10 region-prim-area) has a return type of none, but the expression builder found a return statement.
(defmethod track-exited-region! region-prim-area ((obj region-prim-area) (arg0 drawable-region-sphere))
  "Enumerates through the objects `region-exit-list`, if we find the provided `region`, do nothing and exit
       otherwise, add the [[drawable-region-sphere]] to `region-exit-prim-list` and increment `region-exit-count`

       @param region-sphere Defines the region in question
       @returns nothing"
  (let ((regions-exited (-> obj region-exit-count)))
    (let ((region (-> arg0 region)))
      (countdown (idx regions-exited)
        (if (= (-> obj region-exit-list idx) region)
            (return #f)
            )
        )
      (set! (-> obj region-exit-list regions-exited) (the-as region-prim-area region))
      )
    (set! (-> obj region-exit-prim-list regions-exited) arg0)
    (set! (-> obj region-exit-count) (+ regions-exited 1))
    )
  0
  (none)
  )

;; WARN: Function (method 11 region-prim-area) has a return type of none, but the expression builder found a return statement.
(defmethod track-inside-region! region-prim-area ((obj region-prim-area) (arg0 drawable-region-sphere))
  "Enumerates through the objects `region-inside-list`, if we find the provided `region`, do nothing and exit
       otherwise, add the [[drawable-region-sphere]] to `region-inside-prim-list` and increment `region-inside-count`

       @param region-sphere Defines the region in question
       @returns nothing"
  (let ((regions-inside (-> obj region-inside-count)))
    (let ((region (-> arg0 region)))
      (countdown (idx regions-inside)
        (if (= (-> obj region-inside-list idx) region)
            (return #f)
            )
        )
      (set! (-> obj region-inside-list regions-inside) (the-as region-prim-area region))
      )
    (set! (-> obj region-inside-prim-list regions-inside) arg0)
    (set! (-> obj region-inside-count) (+ regions-inside 1))
    )
  0
  (none)
  )

;; WARN: Function (method 12 region-prim-area) has a return type of none, but the expression builder found a return statement.
(defmethod track-start-region! region-prim-area ((obj region-prim-area) (arg0 drawable-region-sphere))
  "Enumerates through the objects `region-start-list`, if we find the provided `region`, do nothing and exit
       otherwise, add the [[drawable-region-sphere]] to `region-start-prim-list` and increment `region-start-count`

       @param region-sphere Defines the region in question
       @returns nothing"
  (let ((regions-started (-> obj region-start-count)))
    (let ((region (-> arg0 region)))
      (countdown (idx regions-started)
        (if (= (-> obj region-start-list idx) region)
            (return #f)
            )
        )
      (set! (-> obj region-start-list regions-started) (the-as region-prim-area region))
      )
    (set! (-> obj region-start-prim-list regions-started) arg0)
    (set! (-> obj region-start-count) (+ regions-started 1))
    )
  0
  (none)
  )

(defmethod debug-draw-region drawable-region-sphere ((obj drawable-region-sphere) (arg0 int))
  (let ((t9-0 (method-of-type drawable-region-prim debug-draw-region)))
    (t9-0 obj arg0)
    )
  (let ((a2-0 (-> obj bsphere)))
    (add-debug-sphere #t (bucket-id debug2) a2-0 (-> obj bsphere w) (new 'static 'rgba :r #xff :a #x80))
    )
  0
  (none)
  )

(defmethod track-region drawable-region-sphere ((obj drawable-region-sphere) (area region-prim-area))
  "TODO"
  (-> obj region)
  (let ((area-of-interest (-> obj bsphere)))
    (if (< 0.0 (ray-sphere-intersect (-> area pos) (-> area ray) area-of-interest (-> area-of-interest w)))
        (track-entered-region! area obj)
        )
    (if (< 0.0 (ray-sphere-intersect
                 (-> area unknown-vector-uiyb1)
                 (-> area unknown-vector-t3edh)
                 area-of-interest
                 (-> area-of-interest w)
                 )
           )
        (track-exited-region! area obj)
        )
    (if (spheres-overlap? (the-as sphere (-> area pos)) (the-as sphere area-of-interest))
        (track-start-region! area obj)
        )
    (when (spheres-overlap? (the-as sphere (-> area unknown-vector-uiyb1)) (the-as sphere area-of-interest))
      (track-inside-region! area obj)
      #t
      )
    )
  )

(defmethod within-area? drawable-region-sphere ((obj drawable-region-sphere) (area region-prim-area))
  "@returns Whether or not the object overlaps with the provided [[region-prim-area]]'s extent"
  (spheres-overlap? (the-as sphere (-> area pos)) (the-as sphere (-> obj bsphere)))
  )

(defmethod debug-draw-region drawable-region-face ((obj drawable-region-face) (arg0 int))
  (when (zero? arg0)
    (let ((t9-0 (method-of-type drawable-region-prim debug-draw-region)))
      (t9-0 obj arg0)
      )
    )
  (let ((s5-0 (-> obj bsphere)))
    (add-debug-vector
      #t
      (bucket-id debug-no-zbuf1)
      s5-0
      (-> obj data normal)
      (meters 2)
      (new 'static 'rgba :r #xff :g #xff :a #x80)
      )
    (add-debug-sphere #t (bucket-id debug2) s5-0 (-> obj bsphere w) (new 'static 'rgba :r #xff :a #x30))
    )
  (add-debug-bound
    (bucket-id debug2)
    (-> obj data points)
    (the-as int (-> obj data num-points))
    (new 'static 'rgba :r #xff :g #xff :a #x80)
    (new 'static 'rgba :r #xff :a #x80)
    0
    )
  0
  (none)
  )

(defmethod track-region drawable-region-face ((obj drawable-region-face) (arg0 region-prim-area))
  "TODO"
  (local-vars (sv-48 vector) (sv-52 vector) (sv-56 object))
  (-> obj region)
  (let* ((s4-0 (-> obj data))
         (v1-1 (-> s4-0 normal))
         (a0-3 (>= 0.0 (- (vector-dot (-> arg0 pos) v1-1) (-> v1-1 w))))
         (s3-0 (>= 0.0 (- (vector-dot (-> arg0 unknown-vector-uiyb1) v1-1) (-> v1-1 w))))
         )
    (when (!= a0-3 s3-0)
      (when (nonzero? (-> s4-0 num-points))
        (set! sv-48 (new 'stack-no-clear 'vector))
        (set! sv-52 (new 'stack-no-clear 'vector))
        (set! sv-56 (the-as (inline-array vector) (-> s4-0 points)))
        (ray-plane-intersect
          sv-48
          sv-52
          (-> arg0 pos)
          (-> arg0 ray)
          (-> (the-as (inline-array vector) sv-56) 0)
          (-> (the-as (inline-array vector) sv-56) 1)
          (-> (the-as (inline-array vector) sv-56) 2)
          )
        (let ((s4-1 (-> s4-0 num-points))
              (s2-0 0)
              (s1-0 (vector-negate! (new 'stack-no-clear 'vector) sv-52))
              )
          (while (< (+ s2-0 2) (the-as int s4-1))
            (if (the-as
                  (inline-array vector)
                  (or (point-in-triangle-cross
                        sv-48
                        sv-52
                        (-> (the-as (inline-array vector) sv-56) 0)
                        (-> (the-as (inline-array vector) sv-56) 1)
                        (-> (the-as (inline-array vector) sv-56) 2)
                        )
                      (the-as (inline-array vector) (point-in-triangle-cross
                                                      sv-48
                                                      s1-0
                                                      (-> (the-as (inline-array vector) sv-56) 0)
                                                      (-> (the-as (inline-array vector) sv-56) 1)
                                                      (-> (the-as (inline-array vector) sv-56) 2)
                                                      )
                              )
                      )
                  )
                (goto cfg-17)
                )
            (+! s2-0 1)
            (set! sv-56 (-> (the-as (inline-array vector) sv-56) 1))
            )
          )
        (set! s3-0 s3-0)
        (goto cfg-20)
        )
      (label cfg-17)
      (if s3-0
          (track-entered-region! arg0 (the-as drawable-region-sphere obj))
          (track-exited-region! arg0 (the-as drawable-region-sphere obj))
          )
      )
    (label cfg-20)
    s3-0
    )
  )

(defmethod debug-draw-region drawable-region-volume ((obj drawable-region-volume) (arg0 int))
  (let ((t9-0 (method-of-type drawable-region-prim debug-draw-region)))
    (t9-0 obj arg0)
    )
  (let* ((s5-0 (-> obj faces length))
         (s4-0 0)
         (a0-3 (the-as object (+ (+ (* s4-0 32) 16) (the-as int (-> obj faces)))))
         )
    (while (< s4-0 s5-0)
      (debug-draw-region (the-as drawable-region-face a0-3) 1)
      (+! s4-0 1)
      (set! a0-3 (+ (+ (* s4-0 32) 16) (the-as int (-> obj faces))))
      )
    )
  0
  (none)
  )

(defmethod track-region drawable-region-volume ((obj drawable-region-volume) (area region-prim-area))
  "TODO"
  (if (within-area? obj area)
      (track-start-region! area (the-as drawable-region-sphere obj))
      )
  (let* ((s4-0 (-> obj faces length))
         (s3-0 0)
         (a0-4 (the-as object (+ (+ (* s3-0 32) 16) (the-as int (-> obj faces)))))
         )
    (while (< s3-0 s4-0)
      (if (not (track-region (the-as drawable-region-face a0-4) area))
          (return #f)
          )
      (+! s3-0 1)
      (set! a0-4 (+ (+ (* s3-0 32) 16) (the-as int (-> obj faces))))
      )
    )
  (track-inside-region! area (the-as drawable-region-sphere obj))
  #t
  )

(defmethod within-area? drawable-region-volume ((obj drawable-region-volume) (arg0 region-prim-area))
  "@returns Whether or not the object overlaps with the provided [[region-prim-area]]'s extent"
  (let* ((v1-1 (-> obj faces length))
         (a2-0 0)
         (a3-2 (the-as object (+ (+ (* a2-0 32) 16) (the-as int (-> obj faces)))))
         )
    (while (< a2-0 v1-1)
      (let ((a3-4 (-> (the-as drawable-region-face a3-2) data normal)))
        (if (< 0.0 (- (vector-dot (-> arg0 pos) a3-4) (-> a3-4 w)))
            (return #f)
            )
        )
      (+! a2-0 1)
      (set! a3-2 (+ (+ (* a2-0 32) 16) (the-as int (-> obj faces))))
      )
    )
  #t
  )

(defmethod drawable-tree-region-prim-method-17 drawable-tree-region-prim ((obj drawable-tree-region-prim) (arg0 vector))
  (sphere<-vector+r! (the-as sphere (-> (the-as region-prim-area #x70000000) pos)) arg0 0.0)
  (let* ((s5-0 (-> obj data2 (+ (-> obj length) -1) length))
         (s4-0 0)
         (a0-8 (the-as object (+ (+ (* s4-0 32) 32) (the-as int (-> obj data2 (+ (-> obj length) -1))))))
         )
    (while (< s4-0 s5-0)
      (if (within-area? (the-as drawable-region-prim a0-8) (the-as region-prim-area (+ #x70000000 0)))
          (return #t)
          )
      (+! s4-0 1)
      (set! a0-8 (+ (+ (* s4-0 32) 32) (the-as int (-> obj data2 (+ (-> obj length) -1)))))
      )
    )
  #f
  )

;; WARN: Return type mismatch int vs symbol.
(defmethod region-method-9 region ((obj region) (arg0 vector))
  (local-vars (sv-16 int) (sv-32 int))
  (sphere<-vector+r! (the-as sphere (-> (the-as region-prim-area #x70000000) pos)) arg0 0.0)
  (dotimes (s5-0 (-> *level* length))
    (let ((s4-0 (-> *level* level s5-0)))
      (when (= (-> s4-0 status) 'active)
        (when (nonzero? (-> s4-0 bsp region-trees))
          (let* ((s3-0 (-> s4-0 bsp region-trees length))
                 (s2-0 0)
                 (s1-0 (-> s4-0 bsp region-trees s2-0))
                 )
            (while (< s2-0 s3-0)
              (let ((s0-0 (-> s1-0 data2 (+ (-> s1-0 length) -1) length)))
                (set! sv-16 0)
                (set! sv-32 (+ (+ (* sv-16 32) 32) (the-as int (-> s1-0 data2 (+ (-> s1-0 length) -1)))))
                (while (< sv-16 s0-0)
                  (if (and (= (-> (the-as drawable-region-prim sv-32) region) obj)
                           (within-area?
                             (the-as drawable-region-prim sv-32)
                             (the-as region-prim-area (-> (the-as region-prim-area #x70000000) region-prim-list))
                             )
                           )
                      (return (the-as symbol sv-32))
                      )
                  (set! sv-16 (+ sv-16 1))
                  (set! sv-32 (+ (+ (* sv-16 32) 32) (the-as int (-> s1-0 data2 (+ (-> s1-0 length) -1)))))
                  )
                )
              (+! s2-0 1)
              (set! s1-0 (-> s4-0 bsp region-trees s2-0))
              )
            )
          )
        )
      )
    )
  (the-as symbol #f)
  )

(defmethod debug-print drawable-tree-region-prim ((obj drawable-tree-region-prim) (arg0 vector) (arg1 object))
  (sphere<-vector+r! (the-as sphere (+ 1296 #x70000000)) arg0 0.0)
  (let* ((s4-0 (-> obj data2 (+ (-> obj length) -1) length))
         (s3-0 0)
         (s2-0 (the-as object (+ (+ (* s3-0 32) 32) (the-as int (-> obj data2 (+ (-> obj length) -1))))))
         )
    (while (< s3-0 s4-0)
      (if (within-area? (the-as drawable-region-prim s2-0) (the-as region-prim-area (+ #x70000000 0)))
          (format
            arg1
            "    splitbox-~D ~A~%"
            (-> (the-as drawable-region-prim s2-0) id)
            (the-as drawable-region-prim s2-0)
            )
          )
      (+! s3-0 1)
      (set! s2-0 (+ (+ (* s3-0 32) 32) (the-as int (-> obj data2 (+ (-> obj length) -1)))))
      )
    )
  0
  (none)
  )

(defun region-tree-execute ((arg0 symbol) (arg1 vector) (arg2 vector))
  (local-vars (sv-32 vector))
  (with-pp
    (set! sv-32 (vector-average! (new 'stack-no-clear 'vector) arg1 arg2))
    (set! (-> sv-32 w) (* 0.5 (vector-vector-distance arg1 arg2)))
    (set! (-> (the-as region-prim-area #x70000000) region-prim-list num-items) 0)
    (set! (-> (the-as region-prim-area #x70000000) region-enter-count) 0)
    (set! (-> (the-as region-prim-area #x70000000) region-exit-count) 0)
    (set! (-> (the-as region-prim-area #x70000000) region-inside-count) 0)
    (set! (-> (the-as region-prim-area #x70000000) region-start-count) 0)
    (sphere<-vector+r! (the-as sphere (+ 1296 #x70000000)) arg1 0.0)
    (sphere<-vector+r! (the-as sphere (+ 1312 #x70000000)) arg2 0.0)
    (vector-! (the-as vector (+ 1328 #x70000000)) arg2 arg1)
    (vector-! (the-as vector (+ 1344 #x70000000)) arg1 arg2)
    (dotimes (s5-1 (-> *level* length))
      (let ((v1-17 (-> *level* level s5-1)))
        (when (= (-> v1-17 status) 'active)
          (let ((s4-1 (-> v1-17 bsp region-trees)))
            (when (nonzero? s4-1)
              (let* ((s3-0 (-> s4-1 length))
                     (s2-0 0)
                     (a0-14 (-> s4-1 s2-0))
                     )
                (while (< s2-0 s3-0)
                  (if (= (-> a0-14 name) arg0)
                      (collect-regions a0-14 (the-as sphere sv-32) 0 (the-as region-prim-list (+ #x70000000 0)))
                      )
                  (+! s2-0 1)
                  (set! a0-14 (-> s4-1 s2-0))
                  )
                )
              )
            )
          )
        )
      )
    (countdown (gp-1 (-> (the-as region-prim-area #x70000000) region-prim-list num-items))
      (track-region
        (-> (the-as region-prim-area (+ (* gp-1 4) #x70000000)) region-prim-list items 0)
        (the-as region-prim-area (-> (the-as region-prim-area #x70000000) region-prim-list))
        )
      )
    (let ((gp-2 (-> (the-as region-prim-area #x70000000) region-enter-count)))
      (while (begin (label cfg-22) (nonzero? gp-2))
        (+! gp-2 -1)
        (let* ((a2-5 (-> (the-as region-prim-area (+ (* gp-2 4) #x70000000)) region-enter-list 0))
               (s5-2 (-> a2-5 region-prim-list items 0))
               )
          (when s5-2
            (countdown (v1-47 (-> (the-as region-prim-area #x70000000) region-start-count))
              (if (= a2-5 (-> (the-as region-prim-area #x70000000) region-start-list v1-47))
                  (goto cfg-22)
                  )
              )
            (eval!
              (new
                'stack
                'script-context
                (the-as basic a2-5)
                pp
                (-> (the-as region-prim-area (+ (* gp-2 4) #x70000000)) region-enter-prim-list 0 bsphere)
                )
              (the-as pair s5-2)
              )
            )
          )
        )
      )
    (let ((gp-3 (-> (the-as region-prim-area #x70000000) region-exit-count)))
      (while (begin (label cfg-31) (nonzero? gp-3))
        (+! gp-3 -1)
        (let* ((a2-6 (-> (the-as region-prim-area (+ (* gp-3 4) #x70000000)) region-exit-list 0))
               (s5-3 (-> a2-6 region-prim-list items 2))
               )
          (when s5-3
            (countdown (v1-64 (-> (the-as region-prim-area #x70000000) region-inside-count))
              (if (= a2-6 (-> (the-as region-prim-area (+ (* v1-64 4) #x70000000)) region-inside-list 0))
                  (goto cfg-31)
                  )
              )
            (eval!
              (new
                'stack
                'script-context
                (the-as basic a2-6)
                pp
                (-> (the-as region-prim-area (+ (* gp-3 4) #x70000000)) region-exit-prim-list 0 bsphere)
                )
              (the-as pair s5-3)
              )
            )
          )
        )
      )
    (countdown (gp-4 (-> (the-as region-prim-area #x70000000) region-inside-count))
      (let* ((a2-7 (-> (the-as region-prim-area (+ (* gp-4 4) #x70000000)) region-inside-list 0))
             (s5-4 (-> a2-7 region-prim-list items 1))
             )
        (if s5-4
            (eval!
              (new
                'stack
                'script-context
                (the-as basic a2-7)
                pp
                (-> (the-as region-prim-area (+ (* gp-4 4) #x70000000)) region-inside-prim-list 0 bsphere)
                )
              (the-as pair s5-4)
              )
            )
        )
      )
    0
    (none)
    )
  )

(defun region-execute ()
  (set! (-> *level* camera-pos 1 quad) (-> *level* camera-pos 0 quad))
  (set! (-> *level* camera-pos 0 quad) (-> (camera-pos) quad))
  (set! (-> *level* target-pos 1 quad) (-> *level* target-pos 0 quad))
  (set! (-> *level* target-pos 0 quad) (-> (target-pos 0) quad))
  (when (and *execute-regions* (-> *setting-control* user-current region-mode) (not (paused?)))
    (region-tree-execute 'camera (-> *level* camera-pos 1) (the-as vector (-> *level* camera-pos)))
    (region-tree-execute 'target (-> *level* target-pos 1) (the-as vector (-> *level* target-pos)))
    )
  0
  (none)
  )

;; WARN: Return type mismatch int vs drawable-region-prim.
(defun region-prim-lookup-by-id ((arg0 int) (arg1 symbol) (arg2 symbol))
  (let ((v1-0 -1))
    (dotimes (a3-0 (-> *level* length))
      (let ((t0-3 (-> *level* level a3-0)))
        (when (= (-> t0-3 status) 'active)
          (when (nonzero? (-> t0-3 bsp region-trees))
            (let* ((t1-8 (-> t0-3 bsp region-trees length))
                   (t2-1 0)
                   (t3-2 (-> t0-3 bsp region-trees t2-1))
                   )
              (while (< t2-1 t1-8)
                (when (or (not arg1) (= (-> t3-2 name) arg1))
                  (let* ((t4-10 (-> t3-2 data2 (+ (-> t3-2 length) -1) length))
                         (t5-0 0)
                         (t6-2 (the-as object (+ (+ (* t5-0 32) 32) (the-as int (-> t3-2 data2 (+ (-> t3-2 length) -1))))))
                         )
                    (while (< t5-0 t4-10)
                      (when (= (-> (the-as drawable-region-prim t6-2) region id) arg0)
                        (+! v1-0 1)
                        (if (= v1-0 arg2)
                            (return (the-as drawable-region-prim t6-2))
                            )
                        )
                      (+! t5-0 1)
                      (set! t6-2 (+ (+ (* t5-0 32) 32) (the-as int (-> t3-2 data2 (+ (-> t3-2 length) -1)))))
                      )
                    )
                  )
                (+! t2-1 1)
                (set! t3-2 (-> t0-3 bsp region-trees t2-1))
                )
              )
            )
          )
        )
      )
    )
  (the-as drawable-region-prim #f)
  )

(defun region-lookup-by-id ((arg0 int))
  (dotimes (v1-0 (-> *level* length))
    (let ((a1-3 (-> *level* level v1-0)))
      (when (= (-> a1-3 status) 'active)
        (when (nonzero? (-> a1-3 bsp region-array))
          (let* ((a2-8 (-> a1-3 bsp region-array length))
                 (a3-1 0)
                 (t0-2 (-> a1-3 bsp region-array data a3-1))
                 )
            (while (< a3-1 a2-8)
              (if (= (-> t0-2 id) arg0)
                  (return t0-2)
                  )
              (+! a3-1 1)
              (set! t0-2 (-> a1-3 bsp region-array data a3-1))
              )
            )
          )
        )
      )
    )
  (the-as region #f)
  )