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Added basic gradient generation

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A new option in the "Image" menu, gradient generation.
This commit is contained in:
OverloadedOrama 2020-07-18 17:23:36 +03:00
parent 826b4da177
commit 29e9579eb6
7 changed files with 172 additions and 4 deletions
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21
src/Autoload/DrawingAlgos.gd
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@ -499,3 +499,24 @@ func adjust_hsv(img: Image, id : int, delta : float) -> void:
img.set_pixel(i,j,c)
img.unlock()
func generate_gradient(image : Image, colors : Array, steps := 2) -> void:
if colors.size() < 2:
return
var t = 1.0 / (steps - 1)
for i in range(1, steps - 1):
var color : Color
color = colors[-1].linear_interpolate(colors[0], t * i)
colors.insert(1, color)
image.lock()
var size := image.get_size()
var gradient_height = size.y / steps
for i in steps:
for xx in size.x:
var start = i * gradient_height
var end = (i + 1) * gradient_height
for yy in range(start, end):
image.set_pixel(xx, yy, colors[i])