# Conway's Game of Life in a Hestified way
# https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life
# https://ivanish.ca/hest-podcast
#
# To build:
# $ ./translate life.mu
# To run:
# $ qemu-system-i386 -enable-kvm code.img
fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) {
var env-storage: environment
var env/esi: (addr environment) <- address env-storage
initialize-environment env
{
render screen, env
pause env
edit keyboard, env
loop
}
}
type environment {
zoom: int # 0 = 1024 px per cell; 5 = 4px per cell; each step adjusts by a factor of 4
tick: int
}
fn render screen: (addr screen), _self: (addr environment) {
clear-screen screen
var self/esi: (addr environment) <- copy _self
var zoom/eax: (addr int) <- get self, zoom
compare *zoom, 0
{
break-if-!=
render0 screen, self
return
}
}
fn render0 screen: (addr screen), _self: (addr environment) {
var self/esi: (addr environment) <- copy _self
# cell border
draw-vertical-line screen, 0xc0/x, 0/ymin, 0x300/ymax, 0x16/color=dark-grey
draw-vertical-line screen, 0x340/x, 0/ymin, 0x300/ymax, 0x16/color=dark-grey
draw-horizontal-line screen, 0x40/y, 0/xmin, 0x400/xmax, 0x16/color=dark-grey
draw-horizontal-line screen, 0x2c0/y, 0/xmin, 0x400/xmax, 0x16/color=dark-grey
# neighboring inputs, corners
draw-rect screen, 0x90/xmin, 0x10/ymin, 0xb0/xmax, 0x30/ymax, 0xf/alive
draw-rect screen, 0x350/xmin, 0x10/ymin, 0x370/xmax, 0x30/ymax, 0x1a/dead
draw-rect screen, 0x90/xmin, 0x2d0/ymin, 0xb0/xmax, 0x2f0/ymax, 0xf/alive
draw-rect screen, 0x350/xmin, 0x2d0/ymin, 0x370/xmax, 0x2f0/ymax, 0xf/alive
# neighboring inputs, edges
draw-rect screen, 0x1f0/xmin, 0x10/ymin, 0x210/xmax, 0x30/ymax, 0xf/alive
draw-rect screen, 0x90/xmin, 0x170/ymin, 0xb0/xmax, 0x190/ymax, 0x1a/dead
draw-rect screen, 0x1f0/xmin, 0x2d0/ymin, 0x210/xmax, 0x2f0/ymax, 0xf/alive
draw-rect screen, 0x350/xmin, 0x170/ymin, 0x370/xmax, 0x190/ymax, 0xf/alive
# sum node
draw-rect screen, 0x170/xmin, 0x140/ymin, 0x190/xmax, 0x160/ymax, 0x40/color
set-cursor-position screen, 0x2d/col, 0x13/row
draw-text-wrapping-right-then-down-from-cursor-over-full-screen screen, "+", 0xf/color, 0/bg
# conveyers from neighboring inputs to sum node
draw-monotonic-bezier screen, 0xa0/x0 0x20/y0, 0x100/x1 0x150/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0xa0/x0 0x180/y0, 0xc0/x1 0x150/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0xa0/x0 0x2e0/y0, 0x100/x1 0x150/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0x200/x0 0x20/y0, 0x180/x1 0x90/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0x200/x0 0x2e0/y0, 0x180/x1 0x200/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0x360/x0 0x20/y0, 0x180/x1 0xc0/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0x360/x0 0x180/y0, 0x35c/x1 0x150/y1, 0x180/x2 0x150/y2, 4/color
draw-monotonic-bezier screen, 0x360/x0 0x2e0/y0, 0x180/x1 0x200/y1, 0x180/x2 0x150/y2, 4/color
# filter node
draw-rect screen, 0x200/xmin, 0x180/ymin, 0x220/xmax, 0x1a0/ymax, 0x31/color
set-cursor-position screen, 0x3f/col, 0x17/row
draw-text-wrapping-right-then-down-from-cursor-over-full-screen screen, "?", 0xf/color, 0/bg
# conveyer from sum node to filter node
draw-line screen 0x180/x0, 0x150/y0, 0x210/x1, 0x190/y1, 0xa2/color
# cell outputs at corners
draw-rect screen, 0xd0/xmin, 0x50/ymin, 0xf0/xmax, 0x70/ymax, 0xf/alive
draw-rect screen, 0x310/xmin, 0x50/ymin, 0x330/xmax, 0x70/ymax, 0xf/alive
draw-rect screen, 0xd0/xmin, 0x290/ymin, 0xf0/xmax, 0x2b0/ymax, 0xf/alive
draw-rect screen, 0x310/xmin, 0x290/ymin, 0x330/xmax, 0x2b0/ymax, 0xf/alive
# cell outputs at edges
draw-rect screen, 0x1f0/xmin, 0x50/ymin, 0x210/xmax, 0x70/ymax, 0xf/alive
draw-rect screen, 0xd0/xmin, 0x170/ymin, 0xf0/xmax, 0x190/ymax, 0xf/alive
draw-rect screen, 0x1f0/xmin, 0x290/ymin, 0x210/xmax, 0x2b0/ymax, 0xf/alive
draw-rect screen, 0x310/xmin, 0x170/ymin, 0x330/xmax, 0x190/ymax, 0xf/alive
# clock
var tick-a/eax: (addr int) <- get self, tick
set-cursor-position screen, 0x78/x, 0/y
draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen screen, *tick-a, 7/fg 0/bg
# time-variant portion
var progress/eax: int <- copy *tick-a
progress <- and 7
var u/xmm7: float <- convert progress
var eight/eax: int <- copy 8
var eight-f/xmm0: float <- convert eight
u <- divide eight-f
# points on conveyers from neighboring cells
draw-bezier-point screen, u, 0xa0/x0 0x20/y0, 0x100/x1 0x150/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0xa0/x0 0x180/y0, 0xc0/x1 0x150/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0xa0/x0 0x2e0/y0, 0x100/x1 0x150/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x200/x0 0x20/y0, 0x180/x1 0x90/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x200/x0 0x2e0/y0, 0x180/x1 0x200/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x360/x0 0x20/y0, 0x180/x1 0xc0/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x360/x0 0x180/y0, 0x35c/x1 0x150/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x360/x0 0x2e0/y0, 0x180/x1 0x200/y1, 0x180/x2 0x150/y2, 7/color, 4/radius
}
fn draw-bezier-point screen: (addr screen), u: float, x0: int, y0: int, x1: int, y1: int, x2: int, y2: int, color: int, radius: int {
var _cy/eax: int <- bezier-point u, y0, y1, y2
var cy/ecx: int <- copy _cy
var cx/eax: int <- bezier-point u, x0, x1, x2
draw-disc screen, cx, cy, radius, color, 0xf/border-color=white
}
fn edit keyboard: (addr keyboard), _self: (addr environment) {
var self/esi: (addr environment) <- copy _self
var key/eax: byte <- read-key keyboard
# TODO: hotkeys
var dest/eax: (addr int) <- get self, tick
increment *dest
}
fn pause _self: (addr environment) {
var self/esi: (addr environment) <- copy _self
var i/ecx: int <- copy 0
{
compare i, 0x10000000
break-if->=
i <- increment
loop
}
}
fn initialize-environment _self: (addr environment) {
var self/esi: (addr environment) <- copy _self
}