112 lines
2.6 KiB
Lua
112 lines
2.6 KiB
Lua
local gc=love.graphics
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local Spinner={
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data={},
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totalFreq=0,
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spinning=false,
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angle=0,
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angV=0,
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chosen=false,
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light=0,
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}
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Spinner.__index=Spinner
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function Spinner:start()
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if not self.spinning then
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self.spinning=true
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self.angle=MATH.tau*math.random()
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self.angV=.62+.26*math.random()
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return true
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end
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end
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function Spinner:update(dt)
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if self.spinning then
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self.angle=(self.angle+self.angV*dt*60)%MATH.tau
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local dV=
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self.angV>.26 and .0026 or
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self.angV>.12 and .0012 or
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self.angV>.04 and .0004 or
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.0001
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self.angV=self.angV-dV*dt*60
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if self.angV<=0 then
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self.angV=0
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self.spinning=false
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local freq=self.angle%MATH.tau/MATH.tau*self.totalFreq
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for i=1,#self.data do
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local D=self.data[i]
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freq=freq-D.freq
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if freq<=0 then
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self.chosen=D
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self.light=1
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if D.item then
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self.hook_stop(D.item,D.amount)
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end
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break
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end
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end
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end
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else
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if self.light>0 then
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self.light=self.light-dt
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end
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end
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end
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function Spinner:draw(x,y)
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gc.push('transform')
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gc.translate(x,y)
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--Draw circle
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gc.setColor(1,1,1)
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gc.setLineWidth(3)
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gc.circle('line',0,0,300)
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--Draw areas
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gc.setLineWidth(1)
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local freq=0
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for i=1,#self.data do
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gc.line(10,0,290,0)
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local D=self.data[i]
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freq=freq+D.freq
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if D==self.chosen then
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gc.setColor(1,1,1,.5*self.light)
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gc.arc('fill','pie',0,0,300,0,-D.freq*MATH.tau/self.totalFreq)
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gc.setColor(1,1,1)
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end
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local dAng=-MATH.tau*D.freq/self.totalFreq
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gc.rotate(dAng*.5)
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if D.amount>0 then
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setFont(D.font)
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if D.amount==1 then
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mStr(D.disp,170,-D.font*.7)
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else
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mStr(D.disp.."x"..D.amount,170,-D.font*.7)
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end
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end
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gc.rotate(dAng*.5)
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end
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gc.pop()
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--Draw target pin
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gc.setLineWidth(2)
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gc.setColor(1,.3,.3)
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gc.line(x,y,x+200*math.cos(self.angle),y-200*math.sin(self.angle))
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end
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function Spinner.new(data,hook_stop)
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local self={}
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setmetatable(self,Spinner)
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local sum=0
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for i=1,#data do
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sum=sum+data[i].freq
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if not data[i].font then data[i].font=30 end
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end
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self.data=data
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self.totalFreq=sum
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self.hook_stop=hook_stop
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return self
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end
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return Spinner |