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framework for animation

This commit is contained in:
Kartik K. Agaram 2021-05-16 13:09:05 -07:00
parent 6f02cf27e8
commit 9a531aef5f
1 changed files with 29 additions and 2 deletions
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31
hest-life.mu
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@ -1,9 +1,19 @@
# 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
}
@ -11,6 +21,7 @@ fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk)
type environment {
zoom: int
tick: int
}
fn render screen: (addr screen), _self: (addr environment) {
@ -60,13 +71,29 @@ fn render screen: (addr screen), _self: (addr environment) {
draw-rect screen, 0xd0/xmin, 0x170/ymin, 0xf0/xmax, 0x190/ymax, 0x1a/dead
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/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, 7/fg 0/bg
}
fn edit keyboard: (addr keyboard), _self: (addr environment) {
var self/esi: (addr environment) <- copy _self
var key/eax: byte <- read-key keyboard
compare key, 0
loop-if-=
# 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) {