tomo/tomo-old
tomo/tomo-old
Archived
2
1
Fork 0
Code Issues Pull Requests Packages Projects Releases 3 Wiki Activity

THICC LINES

Browse Source
This commit is contained in:
Sasha Koshka 2023-01-20 19:52:35 -05:00
parent 268e7981b5
commit a87d806e54
2 changed files with 27 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
artist/line.go
View File

@ -1,8 +1,11 @@
package artist
import "image"
import "image/color"
import "git.tebibyte.media/sashakoshka/tomo"
// TODO: draw thick lines more efficiently
// Line draws a line from one point to another with the specified weight and
// pattern.
func Line (
@ -14,7 +17,6 @@ func Line (
) (
updatedRegion image.Rectangle,
) {
// TODO: respect weight
updatedRegion = image.Rectangle { Min: min, Max: max }.Canon()
updatedRegion.Max.X ++
@ -68,7 +70,8 @@ func lineLow (
for x := min.X; x < max.X; x ++ {
if !(image.Point { x, y }).In(bounds) { break }
data[x + y * stride] = source.AtWhen(x, y, width, height)
squareAround(data, stride, source, x, y, width, height, weight)
// data[x + y * stride] = source.AtWhen(x, y, width, height)
if D > 0 {
y += yi
D += 2 * (deltaY - deltaX)
@ -103,7 +106,8 @@ func lineHigh (
for y := min.Y; y < max.Y; y ++ {
if !(image.Point { x, y }).In(bounds) { break }
data[x + y * stride] = source.AtWhen(x, y, width, height)
squareAround(data, stride, source, x, y, width, height, weight)
// data[x + y * stride] = source.AtWhen(x, y, width, height)
if D > 0 {
x += xi
D += 2 * (deltaX - deltaY)
@ -118,3 +122,20 @@ func abs (in int) (out int) {
out = in
return
}
func squareAround (
data []color.RGBA,
stride int,
source Pattern,
x, y, patternWidth, patternHeight, diameter int,
) {
minY := y - diameter
minX := x - diameter
maxY := y + diameter
maxX := x + diameter
for y = minY; y < maxY; y ++ {
for x = minX; x < maxX; x ++ {
data[x + y * stride] =
source.AtWhen(x, y, patternWidth, patternHeight)
}}
}

5
elements/testing/artist.go
View File

@ -63,7 +63,7 @@ func (element *Artist) Resize (width, height int) {
},
element.cellAt(3, 0))
// 0, 1 - 0, 3
// 0, 1 - 3, 1
for x := 0; x < 4; x ++ {
artist.FillRectangle (
element,
@ -76,8 +76,9 @@ func (element *Artist) Resize (width, height int) {
element.cellAt(x, 1))
}
// 0, 2 - 3, 2
for x := 0; x < 4; x ++ {
element.lines(x, element.cellAt(x, 2))
element.lines(x + 1, element.cellAt(x, 2))
}
}