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https://github.com/open-goal/jak-project
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water111
52 lines
1.6 KiB
Common Lisp
52 lines
1.6 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: draw-node-h.gc
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;; name in dgo: draw-node-h
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;; dgos: GAME, ENGINE
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;; A "draw-node" is a way to group together a bunch of drawables (possibly other draw-nodes)
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;; they do not support calling draw, but do support collision.
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;; The typical use is to put a bunch of these in an inline array, then call collide on the first,
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;; and pass in the length of the inline array. This will collide with all nodes in the list.
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;; They are also used as groups for the culling system.
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(deftype draw-node (drawable)
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((child-count uint8 :offset 6) ;; if our child requires a count
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(flags uint8 :offset 7)
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(child drawable :offset 8) ;; can be draw-node or any other drawable
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(distance float :offset 12)
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)
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:method-count-assert 18
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:size-assert #x20
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:flag-assert #x1200000020
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;; field distance is a float printed as hex?
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)
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;; It's annoying to work with draw-node's directly, so drawable-inline-array-node is a nice wrapper
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;; that knows the array's length.
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(deftype drawable-inline-array-node (drawable-inline-array)
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((data draw-node 1 :inline)
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(pad uint32)
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)
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:method-count-assert 18
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:size-assert #x44
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:flag-assert #x1200000044
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;; too many basic blocks
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(:methods
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)
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)
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;; the types of these fields are a guess for now.
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(deftype draw-node-dma (structure)
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((banka draw-node 32 :inline :offset-assert 0)
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(bankb draw-node 32 :inline :offset-assert 1024)
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)
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:method-count-assert 9
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:size-assert #x800
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:flag-assert #x900000800
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)
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