Sha256: 9641ab3a6d5f47831e6df4239fcb7787c6d43eed9efcc472826c1e971eab0d43
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Size: 550 Bytes
Versions: 10
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Stored size: 550 Bytes
Contents
# Brightness
# by Rusty Robison.
#
# Brightness is the relative lightness or darkness of a color.
# Move the cursor vertically over each bar to alter its brightness.
def setup
size 640, 480
no_stroke
color_mode HSB, 360, height, height
@bar_width = 20
@brightness = Array.new(width/@bar_width, 0)
end
def draw
(width/@bar_width).times do |i|
n = i * @bar_width
range = (n..n+@bar_width)
@brightness[i] = mouse_y if range.include? mouse_x
fill n, height, @brightness[i]
rect n, 0, @bar_width, height
end
end
Version data entries
10 entries across 10 versions & 1 rubygems