;;-*-Lisp-*-
(in-package goal)
(bundles "ENGINE.CGO" "GAME.CGO")
(require "kernel-defs.gc")

;; res is the very generic resource storage system. See res.gc for more information.

;; DECOMP BEGINS

;; the res-tag describes some data
(deftype res-tag (uint128)
  ((name        symbol :offset 0) ;; name used for lookups
   (key-frame   float :offset 32) ;; if it has a time value associated with it
   (elt-type    type :offset 64) ;; the type of the data stored
   (data-offset uint16 :offset 96) ;; offset to our data within our lump
   (elt-count   uint32 :offset 112 :size 15) ;; if we're an array
   (inlined?    uint8 :offset 127 :size 1) ;; if our data is an inline array or not.
   ))

;; the indices of two res tags. If the specific key-frame time is in between two
;; res-tags, this type is used to return the indices of the first res tag before and after
;; the specified time.
(deftype res-tag-pair (uint64)
  ((lo int32 :offset 0)
   (hi int32 :offset 32))
  ;; made-up type
  )

;; a res-lump is a collection of res-tags and the associated data.
;; it's used as the base type for entities where the res stores various parameters.
(deftype res-lump (basic)
  ((length           int32)
   (allocated-length int32)
   (data-base        pointer)
   (data-top         pointer)
   (data-size        int32)
   (extra            entity-links)
   (tag              (pointer res-tag)))
  (:methods
   (new (symbol type int int) _type_)
   (get-property-data (_type_ symbol symbol float pointer (pointer res-tag) pointer) pointer :no-virtual)
   (get-property-struct (_type_ symbol symbol float structure (pointer res-tag) pointer) structure :no-virtual)
   (get-property-value (_type_ symbol symbol float uint128 (pointer res-tag) pointer) uint128 :no-virtual)
   (get-property-value-float (_type_ symbol symbol float float (pointer res-tag) pointer) float :no-virtual)
   (get-tag-index-data (_type_ int) pointer)
   (get-tag-data (_type_ res-tag) pointer)
   (allocate-data-memory-for-tag! (_type_ res-tag) res-tag)
   (sort! (_type_) _type_)
   (add-data! (_type_ res-tag pointer) res-lump)
   (add-32bit-data! (_type_ res-tag object) res-lump)
   (lookup-tag-idx (_type_ symbol symbol float) res-tag-pair :no-virtual)
   (make-property-data (_type_ float res-tag-pair pointer) pointer)
   (get-curve-data! (_type_ curve symbol symbol float) symbol)))

(define *res-key-string* (new 'global 'string 64 (the-as string #f))) ;; why 64?

(define-extern *res-static-buf* pointer)
