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def randomizeStyle(painter)
painter.setFillStyle(4 *rand)
painter.setStrokeStyle(2 *rand)
end
require "krosschalkcore"
doc = Krosschalkcore::get("ChalkDocument")
script = Krosschalkcore::get("ChalkScript")
image = doc.getImage()
layer = image.getActivePaintLayer()
width = layer.getWidth()
height = layer.getHeight()
script.setProgressTotalSteps(110)
layer.beginPainting("random paint")
painter = layer.createPainter()
# create painting color
blackcolor = Krosschalkcore::newRGBColor(0,0,0)
# set painting color
painter.setPaintColor( blackcolor )
# get the brush
brush = Krosschalkcore::getBrush("Circle (05)")
# define the brush
painter.setBrush(brush)
# get the pattern
pattern = Krosschalkcore::getPattern("Bricks")
# set the pattern
painter.setPattern(pattern)
# define the paint operation
painter.setPaintOp("paintbrush")
# randomly paint
for i in 1..10
# set painting color
painter.setPaintColor( Krosschalkcore::newRGBColor(rand*255,rand*255,rand*255) )
painter.paintAt(rand * width , rand * height,1.1)
script.incProgress()
end
# randomly rect or circle paint
for i in 1..100
# set painting color
painter.setPaintColor( Krosschalkcore::newRGBColor(rand*255,rand*255,rand*255) )
painter.setBackgroundColor( Krosschalkcore::newRGBColor(rand*255,rand*255,rand*255) )
painter.setOpacity( rand*255 )
# set the brush
if(rand < 0.5)
painter.setBrush( Krosschalkcore::newRectBrush(rand*20,rand*20,rand*10,rand*10) )
else
painter.setBrush( Krosschalkcore::newCircleBrush(rand*20,rand*20,rand*10,rand*10) )
end
# paint a point
tqshape = rand * 7
painter.setStrokeStyle(1)
if( tqshape < 1 )
painter.paintAt(rand * width , rand * height,1.1)
elsif(tqshape < 2 )
xs = Array.new
ys = Array.new
for i in 0..6
xs[i] = rand*width
ys[i] = rand*height
end
painter.paintPolyline(xs,ys)
elsif(tqshape < 3)
painter.paintLine(rand * width, rand * height, 1.1, rand * width, rand * height,1.1)
elsif(tqshape < 4)
painter.paintBezierCurve(rand * width, rand * height, 1.1, rand * width, rand * height, rand * width , rand * height, rand * width, rand * height, 1.1)
elsif(tqshape < 5)
randomizeStyle(painter)
painter.paintEllipse(rand * width, rand * height, rand * width, rand * height, 1.1)
elsif(tqshape < 6)
xs = Array.new
ys = Array.new
for i in 0..6
xs[i] = rand*width
ys[i] = rand*height
end
randomizeStyle(painter)
painter.paintPolygon(xs, ys)
elsif(tqshape < 7)
randomizeStyle(painter)
painter.paintRect(rand * width, rand * height, rand * width, rand * height, 1.1)
end
script.incProgress()
end
layer.endPainting()
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