local gc=love.graphics
local max=math.max
local ins=table.insert
local mStr=mStr

local scene={}

local lastKey,keyTime
local speed,maxSpeed=0,260

function scene.sceneInit()
	lastKey=nil
	speed=0
	keyTime={}for i=1,40 do keyTime[i]=-1e99 end
	BG.set('gray')
	BGM.play('push')
	love.keyboard.setKeyRepeat(false)
end
function scene.sceneBack()
	love.keyboard.setKeyRepeat(true)
end

function scene.keyDown(key)
	if key=="escape"then
		SCN.back()
	else
		if lastKey~=key then
			lastKey=key
		else
			ins(keyTime,1,TIME())
			keyTime[41]=nil
			SFX.play('click',.3)
		end
	end
end

function scene.update()
	local t=TIME()
	local v=0
	for i=2,40 do v=v+i*(i-1)*.075/(t-keyTime[i])end
	speed=speed*.99+v*.01
	if speed>maxSpeed then maxSpeed=speed end
end

function scene.draw()
	setFont(70)gc.setColor(1,.6,.6)
	mStr(("%.2f"):format(maxSpeed),640,20)

	setFont(100)gc.setColor(1,1,1)
	mStr(("%.2f"):format(speed),640,150)

	setFont(35)
	gc.setColor(.6,.6,.9)
	mStr(("%.2f"):format(maxSpeed/60),640,95)
	gc.setColor(.8,.8,.8)
	mStr(("%.2f"):format(speed/60),640,255)

	setFont(60)gc.setColor(.7,.7,.7)
	mStr("/min",640,310)


	gc.setLineWidth(4)
	if speed==maxSpeed then
		local t=TIME()%.1>.05 and 1 or 0
		gc.setColor(1,t,t)
	else
		gc.setColor(max(speed/maxSpeed*10-9,0),1-max(speed/maxSpeed*8-7,0),1-max(speed/maxSpeed*4-3,0))
	end
	gc.rectangle('fill',960,360,30,-320*max(speed/maxSpeed*4-3,0))
	gc.setColor(1,1,1)
	gc.rectangle('line',960,360,30,-320)
end

scene.widgetList={
	WIDGET.newKey{name="tap",x=640,y=540,w=626,h=260,fText="TAP",color='Z',font=100,code=pressKey"button"},
	WIDGET.newButton{name="back",x=1140,y=640,w=170,h=80,font=40,code=backScene},
}

return scene