73 lines
1.3 KiB
Lua
73 lines
1.3 KiB
Lua
--Flandre's wing
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local gc=love.graphics
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local rnd=math.random
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local back={}
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local wingColor={
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{0., .9, .9,.26},
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{.3, 1., .3,.26},
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{.9, .9, 0.,.26},
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{1., .5, 0.,.26},
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{1., .3, .3,.26},
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{.5, 0., 1.,.26},
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{.3, .3, 1.,.26},
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{0., .9, .9,.26},
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}
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local bar,crystal
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local W,H
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function back.init()
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bar=gc.newCanvas(41,1)
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gc.setCanvas(bar)
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gc.push('transform')
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gc.origin()
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for x=0,20 do
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gc.setColor(1,1,1,x/11)
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gc.rectangle('fill',x,0,1,1)
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gc.rectangle('fill',41-x,0,1,1)
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end
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gc.pop()
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gc.setCanvas()
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back.resize()
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end
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function back.resize()
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crystal={}
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W,H=SCR.w,SCR.h
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for i=1,16 do
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crystal[i]={
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x=i<9 and W*.05*i or W*.05*(28-i),
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y=H*.1,
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a=0,
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va=0,
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f=i<9 and .012-i*.0005 or .012-(17-i)*.0005
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}
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end
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end
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function back.update()
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for i=1,16 do
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local B=crystal[i]
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B.a=B.a+B.va
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B.va=B.va*.986-B.a*B.f
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end
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end
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function back.draw()
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gc.clear(.06,.06,.06)
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local sy=H*.8
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for i=1,8 do
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gc.setColor(wingColor[i])
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local B=crystal[i]
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gc.draw(bar,B.x,B.y,B.a,1,sy,20,0)
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B=crystal[17-i]
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gc.draw(bar,B.x,B.y,B.a,1,sy,20,0)
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end
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end
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function back.event(level)
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for i=1,8 do
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local B=crystal[i]
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B.va=B.va+.001*level*(1+rnd())
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B=crystal[17-i]
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B.va=B.va-.001*level*(1+rnd())
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end
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end
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function back.discard()
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bar,crystal=nil
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end
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return back |