71 lines
1.5 KiB
Lua
71 lines
1.5 KiB
Lua
COOLDOWN_FACTOR = 0.9998
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num_modules = 20
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center_module = 10
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-- maximum energy values for each band
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maxRedEnergy = 1
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maxGreenEnergy = 1
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maxBlueEnergy = 1
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-- output color buffers
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red = {}
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green = {}
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blue = {}
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function periodic()
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local redEnergy = get_energy_in_band(0, 400);
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local greenEnergy = get_energy_in_band(400, 4000);
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local blueEnergy = get_energy_in_band(4000, 22000);
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maxRedEnergy = maxRedEnergy * COOLDOWN_FACTOR
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if redEnergy > maxRedEnergy then
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maxRedEnergy = redEnergy
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end
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maxGreenEnergy = maxGreenEnergy * COOLDOWN_FACTOR
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if greenEnergy > maxGreenEnergy then
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maxGreenEnergy = greenEnergy
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end
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maxBlueEnergy = maxBlueEnergy * COOLDOWN_FACTOR
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if blueEnergy > maxBlueEnergy then
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maxBlueEnergy = blueEnergy
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end
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-- move the color buffers on by one in each direction
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for i = 2,center_module,1 do
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red[i-1] = red[i]
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green[i-1] = green[i]
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blue[i-1] = blue[i]
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end
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for i = num_modules-1,center_module,-1 do
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red[i+1] = red[i]
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green[i+1] = green[i]
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blue[i+1] = blue[i]
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end
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-- set the new value for the center module
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red[center_module] = redEnergy / maxRedEnergy
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green[center_module] = greenEnergy / maxGreenEnergy
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blue[center_module] = blueEnergy / maxBlueEnergy
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-- return the 3 color arrays
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return red, green, blue
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end
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function init(nmod, cmod)
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num_modules = nmod
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center_module = cmod
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for i = 1,nmod do
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red[i] = 0
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green[i] = 0
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blue[i] = 0
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end
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-- don't use fading
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return 0
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end
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