75 lines
1.4 KiB
Lua
75 lines
1.4 KiB
Lua
--UUZ's fan
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local gc=love.graphics
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local polygon,ellipse=gc.polygon,gc.ellipse
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local rnd=math.random
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local max,min,sin=math.max,math.min,math.sin
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local ins,rem=table.insert,table.remove
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local back={}
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local t
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local fan,petal
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function back.init()
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t=rnd(2600)
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fan=title_fan
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petal={}
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end
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function back.update()
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t=t+1
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if t%10==0 then
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ins(petal,{
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x=SCR.w*rnd(),
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y=0,
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vy=2+rnd()*2,
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vx=rnd()*2-.5,
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rx=4+rnd()*4,
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ry=4+rnd()*4,
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})
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end
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for i=#petal,1,-1 do
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local P=petal[i]
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P.y=P.y+P.vy
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if P.y>SCR.h then
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rem(petal,i)
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else
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P.x=P.x+P.vx
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P.vx=P.vx+rnd()*.01
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P.rx=max(min(P.rx+rnd()-.5,10),2)
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P.ry=max(min(P.ry+rnd()-.5,10),2)
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end
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end
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end
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function back.draw()
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gc.push("transform")
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gc.translate(SCR.w/2,SCR.h/2+20*sin(t*.02))
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gc.scale(SCR.k)
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gc.clear(.1,.1,.1)
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gc.setLineWidth(320)
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gc.setColor(.3,.2,.3)
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gc.arc("line","open",0,420,500,-.8*3.1416,-.2*3.1416)
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gc.setLineWidth(4)
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gc.setColor(.7,.5,.65)
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gc.arc("line","open",0,420,660,-.799*3.1416,-.201*3.1416)
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gc.arc("line","open",0,420,340,-.808*3.1416,-.192*3.1416)
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gc.line(-281,224,-530,30.5)
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gc.line(281,224,530,30.5)
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gc.setLineWidth(6)
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gc.setColor(.55,.5,.6)
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for i=1,8 do
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polygon("line",fan[i])
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end
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gc.setLineWidth(2)
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gc.setColor(.6,.3,.5)
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gc.origin()
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for i=1,#petal do
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local P=petal[i]
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ellipse("fill",P.x,P.y,P.rx,P.ry)
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end
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gc.pop()
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end
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function back.discard()
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petal=nil
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end
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return back |