133 lines
5.1 KiB
Fennel
133 lines
5.1 KiB
Fennel
(local util (require :lib.util))
|
|
(local lume (require :lib.lume))
|
|
(local {: parse} (util.require :presentation.engine))
|
|
(local core (require :core))
|
|
(local style (require :core.style))
|
|
(local TileEditView (require :editor.tileedit))
|
|
(local MapEditView (require :editor.mapedit))
|
|
(local PortraitEditView (require :editor.portraitedit))
|
|
(local FontEditView (require :editor.fontedit))
|
|
(local ScreenEditView (require :editor.screenedit))
|
|
|
|
(local h
|
|
{:style true
|
|
:font (renderer.font.load "presentation/font/PrintChar21.ttf" (* 64 SCALE))
|
|
:color style.caret
|
|
:justify :center
|
|
:topPadding (* style.padding.y 2)
|
|
:lowerPadding 64})
|
|
(local **
|
|
{:style true
|
|
:font (renderer.font.load "presentation/font/PRNumber3.ttf" (* 32 SCALE))
|
|
:color style.text
|
|
:justify :left
|
|
:pause-after true})
|
|
(fn p [style] (lume.merge style {:pause-after true}))
|
|
(fn np [style] (lume.merge style {:pause-after false}))
|
|
|
|
(fn bgimg [filename] {:image filename :justify :center :overlay true :alpha 0.3 :topPadding 0})
|
|
|
|
(fn view-cleanup [view]
|
|
(let [root core.root_view.root_node
|
|
node (root:get_node_for_view view)]
|
|
(when node (node:close_active_view root))))
|
|
|
|
(fn split-and-open [f ?split]
|
|
(let [focused-view core.active_view
|
|
focused-node (core.root_view:get_active_node)
|
|
_ (when ?split (focused-node:split ?split))
|
|
view (f)
|
|
node (core.root_view:get_active_node)]
|
|
(when (= (core.root_view.root_node:get_node_for_view view) nil) (node:add_view view))
|
|
(when ?split (core.set_active_view focused-view)) ; don't switch focus
|
|
#(view-cleanup view)))
|
|
|
|
(fn openview [f ?split] {:action #(split-and-open f ?split)})
|
|
(fn openfile [filename ?split]
|
|
(openview #(core.root_view:open_doc (core.open_doc filename)) ?split))
|
|
|
|
(parse [
|
|
[h "" "" ""
|
|
"Honeylisp"
|
|
"" "" ""
|
|
(np **) "Jeremy Penner"
|
|
"https://spindleyq.itch.io/"
|
|
"https://blog.information-superhighway.net/"
|
|
"https://bitbucket.org/SpindleyQ/honeylisp"
|
|
"https://gamemaking.social/@SpindleyQ"
|
|
"https://twitter.com/SpindleyQ"
|
|
{:pause-after true}]
|
|
[(bgimg "presentation/pics/pete286.jpeg")
|
|
h "Some Background"
|
|
** "In 2019 I built a 16-bit MS-DOS game engine."
|
|
"* Built on hardware"
|
|
"* Using only period-appropriate software (Turbo C, NeoPaint)"
|
|
"* Powered by Forth"
|
|
"* Integrated custom tools"
|
|
"* Interactive development via serial terminal"]
|
|
[(bgimg "presentation/pics/ggj2020.jpeg")
|
|
h "Neut Tower"
|
|
** "In 2020, I did the Global Game Jam on my 286."
|
|
"Finished 'Shareware Episode 1' a couple of months later."]
|
|
[h "The Idea"
|
|
** "What if I took a similar DIY approach with modern tooling?"
|
|
"* I'd done Forth; what about Lisp?"
|
|
" https://fennel-lang.org/"
|
|
"* How far can I push fast iterative development?"
|
|
"* Could I integrate an editor?"
|
|
"* How can I leverage emulation?"]
|
|
[h "Step 1: Assembler"
|
|
** "Represent instructions using Fennel data literals"
|
|
(openfile :asm/asm.fnl :right)
|
|
" [:lda 0xff]"
|
|
"Represent labels with Fennel strings"
|
|
" :loop [:bne :loop]"
|
|
"Lexical scope with nested blocks"
|
|
" [:block :loop (generate-loop-code) [:bne :loop]]"]
|
|
; ;; DEMO before tech dive??
|
|
[h "Wait WTF Is An Assembler"
|
|
** "It's just converting mnemonics to bytes, right?"
|
|
{:image "presentation/pics/assembly-markup.png" :justify :center :pause-after true}
|
|
"Whoooops, actually the hard part is converting labels to addresses"
|
|
"Zero-page instructions are a different size, which messes up data layout!"
|
|
"Initial pass is needed to gather all symbols to determine sizes"
|
|
"What about data?"
|
|
" [:db 123] [:dw 12345] [:bytes \"HELLO WORLD\"] [:ref :hello]"
|
|
"Must be able to line up bytes on page boundaries"
|
|
" [:align 0x100]"]
|
|
[h "Step 2: Virtual Machine"
|
|
{:image "presentation/pics/thinkhard.png" :justify :center}
|
|
** "Not super keen on writing a complicated compiler"
|
|
"I'm already very comfortable with Forth"
|
|
"Let's build a stack machine!"
|
|
"\"Direct threaded\" inner interpreter"
|
|
"\"Immediate words\" can be Fennel functions that generate code!"]
|
|
[h "Extensible Assembler??"
|
|
** "How do you turn code into bytes?"
|
|
" [:vm 1 2 :+ :.]"
|
|
"Branching?"
|
|
" (vm:if [:do-true-thing] [:do-false-thing])"
|
|
"I can even do short-circuiting OR!"
|
|
" (vm:if-or [[:dup 1 :=] [:dup 3 :=]] [:do-true-thing] [:do-false-thing])"]
|
|
[h "Step 3: Tooling And Workflow"
|
|
** "I want an environment that makes it easy to make graphical tools"
|
|
"I'm SO tired of web tech"
|
|
"Could LÖVE2D with an imgui work?"]
|
|
[h "lite"
|
|
** "A small, highly-extensible text editor written in Lua"
|
|
"Backend is SDL"
|
|
"Could I rewrite it to run under LÖVE2D?"
|
|
" Yes! In a weekend!"]
|
|
[h "Custom Editors"
|
|
** "14x16 tile editor"
|
|
(openview #(TileEditView))
|
|
"Font editor"
|
|
(openview #(FontEditView))
|
|
"Portrait editor"
|
|
(openview #(PortraitEditView))
|
|
"Map editor"
|
|
(openview #(MapEditView))
|
|
"Screen editor"
|
|
(lume.merge (openview #(ScreenEditView :neuttower/title.screen)) {:pause-after true})]
|
|
])
|