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Revision 125, 0.6 kB
(checked in by why, 13 months ago)
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* shoes/ruby.c: don't anti-alias the cursor.
* samples/follow.rb: background changes as the pointer moves.
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| 1 | trails = [[0, 0]] * 60 |
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| 2 | Shoes.app do |
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| 3 | nostroke |
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| 4 | fill rgb(0x30, 0xFF, 0xFF, 0.6) |
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| 5 | |
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| 6 | # animation at 24 frames per second |
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| 7 | animate(24) do |
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| 8 | trails.shift |
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| 9 | trails << self.mouse[1, 2] |
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| 10 | |
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| 11 | clear do |
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| 12 | # change the background based on where the pointer is |
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| 13 | background rgb( |
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| 14 | 20 + (70 * (trails.last[0].to_f / self.width)).to_i, |
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| 15 | 20 + (70 * (trails.last[1].to_f / self.height)).to_i, |
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| 16 | 51) |
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| 17 | |
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| 18 | # draw circles progressively bigger |
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| 19 | trails.each_with_index do |(x, y), i| |
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| 20 | i += 1 |
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| 21 | oval :left => x, :top => y, :radius => i, :center => true |
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| 22 | end |
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| 23 | end |
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| 24 | end |
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| 25 | |
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| 26 | end |
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