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first bit of animation

This commit is contained in:
Kartik K. Agaram 2021-05-16 15:29:53 -07:00
parent c3eddb9154
commit 444227b3c4
2 changed files with 46 additions and 2 deletions
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21
509bezier.mu
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@ -293,3 +293,24 @@ fn draw-monotonic-bezier screen: (addr screen), x0: int, y0: int, x1: int, y1: i
# plot the remaining straight line
draw-line screen, x y, x2 y2, color
}
# 0 <= u <= 1
fn bezier-point u: float, x0: int, x1: int, x2: int -> _/eax: int {
var one/eax: int <- copy 1
var u-prime/xmm0: float <- convert one
u-prime <- subtract u
var result/xmm1: float <- convert x0
result <- multiply u-prime
result <- multiply u-prime
var term2/xmm2: float <- convert x1
term2 <- multiply u
term2 <- multiply u-prime
result <- add term2
result <- add term2
var term3/xmm2: float <- convert x2
term3 <- multiply u
term3 <- multiply u
result <- add term3
var result/eax: int <- convert result
return result
}

27
hest-life.mu
View File

@ -83,9 +83,32 @@ fn render0 screen: (addr screen), _self: (addr environment) {
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
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, 7/fg 0/bg
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 0x160/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0xa0/x0 0x180/y0, 0x110/x1 0x160/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0xa0/x0 0x2e0/y0, 0x100/x1 0x160/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x200/x0 0x20/y0, 0x180/x1 0x90/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x200/x0 0x2e0/y0, 0x180/x1 0x200/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x360/x0 0x20/y0, 0x180/x1 0xc0/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x360/x0 0x180/y0, 0x300/x1 0x160/y1, 0x180/x2 0x160/y2, 7/color, 4/radius
draw-bezier-point screen, u, 0x360/x0 0x2e0/y0, 0x180/x1 0x200/y1, 0x180/x2 0x160/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) {