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simpler

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This commit is contained in:
Ryan Oldenburg 2020-12-09 03:53:35 -06:00
parent a449efc386
commit 78b1dbab03
1 changed files with 3 additions and 9 deletions
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12
src/pixie/images.nim
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@ -433,9 +433,8 @@ proc drawUber(
let mixer = blendMode.mixer() let mixer = blendMode.mixer()
for y in 0 ..< a.height: for y in 0 ..< a.height:
var var
xMin = 0 xMin = a.width
xMax = 0 xMax = 0
hasIntersection = false
for yOffset in [0.float32, 1]: for yOffset in [0.float32, 1]:
var scanLine = segment( var scanLine = segment(
vec2(-100000, y.float32 + yOffset), vec2(-100000, y.float32 + yOffset),
@ -444,13 +443,8 @@ proc drawUber(
for l in lines: for l in lines:
var at: Vec2 var at: Vec2
if intersects(l, scanLine, at): if intersects(l, scanLine, at):
if hasIntersection: xMin = min(xMin, at.x.floor.int)
xMin = min(xMin, at.x.floor.int) xMax = max(xMax, at.x.ceil.int)
xMax = max(xMax, at.x.ceil.int)
else:
hasIntersection = true
xMin = at.x.floor.int
xMax = at.x.ceil.int
xMin = xMin.clamp(0, a.width) xMin = xMin.clamp(0, a.width)
xMax = xMax.clamp(0, a.width) xMax = xMax.clamp(0, a.width)