local gc=love.graphics
local rnd=math.random
local int,max=math.floor,math.max

local perfect={"Perfect!","Excellent!","Nice!","Good!","Great!","Just!","300"}
local great={"Pay attention!","Be carefully!","Teacher behind you!","Feel tired?","You are in danger!","Do your homework!","A good game!","Minecraft!","y=ax^2+bx+c!","No music?","Internet unavailable.","It's raining!","Too hard!","Shorter?","Higher!","English messages!","Hi!","^_^","Drop!","Colorful!",":)","100$","~~~wave~~~","★★★","中文!","NOW!!!!!","Also try the TEN!","I'm a programer!","Also try minesweeperZ!","This si Dropper!","Hold your calculatoor!","Look! UFO!","Bonjour!","[string]","Author:MrZ","Boom!","PvZ!","China!","TI-nspire!","I love LUA!"}
local miss={"Oops!","Uh-oh","Ouch!","Oh no."}

local scene={}

local highScore,highFloor=0,0
local move,base
local state,message
local speed
local score,floor,camY
local color1,color2={},{}

local function restart()
	move={x=0,y=260,l=500}
	base={x=40,y=690,l=1200}
	message="Welcome"
	speed=10
	score=0
	floor=0
	camY=0
	for i=1,3 do
		color1[i]=rnd()
		color2[i]=rnd()
	end
end

function scene.sceneInit()
	restart()
	state="menu"
	BGM.play("hang out")
	BG.set("space")
	love.keyboard.setKeyRepeat(false)
end
function scene.sceneBack()
	love.keyboard.setKeyRepeat(true)
end

function scene.keyDown(key)
	if key=="space"or key=="return"then
		if state=="move"then
			if floor>0 then
				if move.x<base.x then
					move.x=move.x+10
				elseif move.x>base.x then
					move.x=move.x-10
				end
			end
			SFX.play("swipe")
			state="drop"
		elseif state=="dead"then
			move.x,move.y,move.l=1e99,0,0
			base.x,base.y,base.l=1e99,0,0
			state="scroll"
		elseif state=="menu"then
			restart()
			state="move"
		end
	elseif key=="escape"then
		SCN.back()
	end
end
function scene.mouseDown(_,_,k)
	if k==1 then
		scene.keyDown("space")
	end
end
function scene.touchDown()
	scene.keyDown("space")
end

function scene.update()
	if state=="move"then
		move.x=move.x+speed
		if speed<0 and move.x<=0 or speed>0 and move.x+move.l>=1280 then
			SFX.play("lock")
			speed=-speed
		end
	elseif state=="drop"then
		move.y=move.y+18
		if move.y>=660 then
			if move.x>base.x+base.l or move.x+move.l<base.x then
				message=miss[rnd(1,4)]
				state="die"
			else
				move.y=660
				SFX.play("clear_1")
				if floor>0 and move.x==base.x then
					SFX.play("ren_mega")
				end
				state="shorten"
			end
		end
	elseif state=="shorten"then
		if move.x>base.x+base.l or move.x+move.l<base.x then
			state="die"
		elseif move.x<base.x then
			move.x=move.x+5
			move.l=move.l-5
		elseif move.x+move.l>base.x+base.l then
			move.l=move.l-5
		else
			state="climb"
		end
	elseif state=="climb"then
		if base.y<720 then
			move.y=move.y+3
			base.y=base.y+3
			camY=camY+3
		else
			if move.x==base.x and move.x+move.l==base.x+base.l and floor~=0 then
				score=score+2
				message=perfect[rnd(1,3)]
			else
				score=score+1
				message=great[rnd(1,table.maxn(great))]
			end
			for i=1,3 do
				color2[i]=color1[i]
				color1[i]=rnd()
			end
			base.x=move.x
			base.y=690
			base.l=move.l
			floor=floor+1
			if rnd()<.5 then
				move.x=-move.l
				speed=10
			else
				move.x=1280
				speed=-10
			end
			move.y=rnd(max(260-floor*4,60),max(420-floor*5,100))
			state="move"
		end
	elseif state=="die"then
		move.y=move.y+18
		if move.y>1000 then
			highScore=max(score,highScore)
			highFloor=max(floor,floor)
			state="dead"
		end
	elseif state=="scroll"then
		camY=camY-floor/4
		if camY<1000 then camY=camY-1 end
		if camY<500 then camY=camY-1 end
		if camY<0 then
			restart()
			state="move"
		end
	end
end

local backColor={
	{.71,1,.71},
	{.47,.86,1},
	{.63,.78,1},
	{.71,.71,.71},
	{.59,.55,.55},
	{.43,.43,.43,.9},
	{.34,.34,.34,.8},
	{.26,.26,.26,.7},
}
backColor.__index=function(t,lv)
	local a=backColor[#backColor][4]-.1
	t[lv]={.26,.26,.26,a}
	return t[lv]
end
setmetatable(backColor,backColor)
function scene.draw()
	--Background
	local lv,height=int(camY/700),camY%700
	gc.setColor(backColor[lv+1]or COLOR.black)
	gc.rectangle("fill",0,720,1280,height-700)
	gc.setColor(backColor[lv+2]or COLOR.black)
	gc.rectangle("fill",0,height+20,1280,-height-20)
	if height-680>0 then
		gc.setColor(backColor[lv+3]or COLOR.black)
		gc.rectangle("fill",0,height-680,1280,680-height)
	end

	if state=="menu"or state=="dead"then
		setFont(100)
		gc.setColor(COLOR.rainbow_light(TIME()*2.6))
		mStr("DROPPER",640,120)

		gc.setColor(COLOR.rainbow_grey(TIME()*1.626))
		setFont(55)
		mStr("Score - "..score,640,290)
		mStr("High Score - "..highScore,640,370)
		mStr("High Floor - "..highFloor,640,450)

		gc.setColor(0,0,0)
		setFont(35)
		mStr(MOBILE and"Touch to Start"or"Press space to Start",640,570)
		setFont(20)
		gc.print("Original CX-CAS version by MrZ",740,235)
		gc.print("Ported / Rewritten / Balanced by MrZ",740,260)
	end
	if state~="menu"then
		--High floor
		gc.setColor(1,1,1)
		gc.setLineWidth(2)
		local y=690+camY-30*highFloor
		gc.line(0,y,1280,y)

		gc.setLineWidth(6)
		gc.rectangle("line",move.x-3,move.y-3,move.l+6,36)
		gc.rectangle("line",base.x-3,base.y-3,base.l+6,36)

		setFont(45)
		gc.print(floor+1,move.x+move.l+15,move.y-18)
		gc.print(floor,base.x+base.l+15,base.y-18)

		gc.setColor(1,1,1)
		mStr(message,640,0)
		gc.setColor(0,0,0)
		mStr(message,643,2)

		setFont(70)
		gc.setColor(1,1,1)
		gc.print(score,60,40)
		gc.setColor(0,0,0)
		gc.print(score,64,43)

		gc.setColor(color1)gc.rectangle("fill",move.x,move.y,move.l,30)
		gc.setColor(color2)gc.rectangle("fill",base.x,base.y,base.l,30)
	end
end

scene.widgetList={
	WIDGET.newButton{name="back",x=1140,y=60,w=170,h=80,font=40,code=pressKey"escape"},
}

return scene