local velocity = {x=0,y=0}
local lerpmnt <const> = 0.5
local grav <const> = 0.2
scale = 1
local dead = false

local rocketfly = nil

local exists = false
local active = false
local gfx <const> = playdate.graphics
local imgRocket = gfx.image.new("gfx/rocket")
local imgFire = gfx.imagetable.new("gfx/fire")
assert(imgRocket)
sprRocket = gfx.sprite.new(imgRocket)
local loopFire = gfx.animation.loop.new(200,imgFire)
sprRocket:setCollideRect(9, 9, 10, 10)
local startpos = {x=0,y=0}
sprRocket:setGroups({1,2,3})

local imgBigRocket = gfx.image.new("gfx/bigrocket")
local imgBigFire = gfx.imagetable.new("gfx/bigrocketfire")
assert(imgBigRocket)
assert(imgBigFire)
local loopBigFire = gfx.animation.loop.new(200,imgBigFire)
local sprBigRocket = gfx.sprite.new(imgBigRocket)
sprBigRocket:setCollideRect(0,0,64,64)
sprBigRocket:setGroups({2})
sprBigRocket:setCollidesWithGroups({2})

local resetButton = nil

local sfxDie = playdate.sound.sampleplayer.new("sfx/die")

local function die()
    deaths +=1
    explode(sprRocket.x,sprRocket.y)
    active = false
    velocity = {x=0,y=0}
    sprRocket:moveTo(startpos.x, startpos.y) 
    miniExplode(startpos.x,startpos.y)
    sfxDie:play()
end

function addPlayer(_x,_y,__x,__y)
    exists = true
    dead = false
    scale = 1
    active = false
    velocity = {x=0,y=0}
    startpos = {x= _x,y=_y}
    sprBigRocket:moveTo(__x,__y)
    sprBigRocket:removeAnimator()
    sprBigRocket:setImage(imgBigRocket)
    sprBigRocket:add()
    sprRocket:moveTo(_x,_y)
    sprRocket:add()
    sprRocket:setVisible(true)
    resetButton = playdate.getSystemMenu():addMenuItem("respawn", function()
        die()
    end)
end

function killPlayer()
    tutorial = nil
    song:setFinishCallback(nil)
    exists = false
    active = false
    sprRocket:remove()
    sprRocket:removeAnimator()
    sprBigRocket:remove()
    sprBigRocket:removeAnimator()
    gfx.setDrawOffset(0,0)
    if resetButton ~= nil then playdate.getSystemMenu():removeMenuItem(resetButton) end
    resetButton = nil
end

local function playerWin()
    if active then
        playdate.getSystemMenu():removeMenuItem(resetButton)
        song:stop()
        song:load("sfx/song3")
        song:play(1)
        local startPos = playdate.geometry.point.new(sprRocket.x, sprRocket.y)
        local endPos = playdate.geometry.point.new(sprBigRocket.x, sprBigRocket.y)
        sprRocket:setAnimator(gfx.animator.new(800, startPos, endPos))

        rocketfly = playdate.timer.new(6000, function(timer) 
            if dead then
                local stPos = playdate.geometry.point.new(sprBigRocket.x, sprBigRocket.y)
                local ndPos = playdate.geometry.point.new(sprBigRocket.x, sprBigRocket.y - 1000)
                sprBigRocket:setAnimator(gfx.animator.new(3000,stPos,ndPos, playdate.easingFunctions.inCubic))
            end
        end)

        song:setFinishCallback(function()
            song:setFinishCallback(nil)
            if next then 
                map = next
            end
            totalEnergy = 0
            showEnergy = false
            energy = 0
            killPlayer()
            removeMap()
            killBlades()
            if mode == "game" and next then
                playdate.datastore.delete("savegame")
                playdate.datastore.write({savedLevel=map,savedDeaths=deaths},"savegame")
                next = nil
                addMapSave(map)
            elseif mode == "game" then
                beginEndCutscene()
                next = nil
            else
                next = nil
                mainMenuCreation()
                createMenu(mainmenu)
            end

        end)

    end
    active = false
    exists = false
    dead = true

end

function updatePlayer()
    playdate.timer.updateTimers()
    sprRocket:setImage(imgRocket)
    if active == true then
        if playdate.buttonIsPressed(playdate.kButtonUp) or playdate.buttonIsPressed(playdate.kButtonA) then
            velocity.x = velocity.x + math.sin(math.rad(playdate.getCrankPosition())) /2
            velocity.y = velocity.y - math.cos(math.rad(playdate.getCrankPosition())) /2
        end
        sprRocket:moveBy(velocity.x,velocity.y)

        local cx, cy = gfx.getDrawOffset()
        gfx.setDrawOffset(playdate.math.lerp(cx,(-sprRocket.x + 200), lerpmnt), playdate.math.lerp(cy,(-sprRocket.y + 120), lerpmnt))

        sprRocket:setRotation(0)
        sprRocket:update()
        --print(#sprRocket:overlappingSprites())

        velocity.y += grav
        
        if #sprRocket:overlappingSprites() > 0 then 
            die()
        end

    elseif exists == true then
        if (playdate.buttonJustPressed(playdate.kButtonUp) or playdate.buttonJustPressed(playdate.kButtonA)) and playdate.isCrankDocked() == false then
            active = true
        end
        local cx, cy = gfx.getDrawOffset()
        gfx.setDrawOffset(playdate.math.lerp(cx,(-sprRocket.x + 200), lerpmnt), playdate.math.lerp(cy,(-sprRocket.y + 120), lerpmnt))
    elseif dead == true then
        local cx, cy = gfx.getDrawOffset()
        gfx.setDrawOffset(playdate.math.lerp(cx,(-sprRocket.x + 200), 0.1), playdate.math.lerp(cy,(-sprRocket.y + 120), 0.1))
        sprBigRocket:setImage(loopBigFire:image())
        if scale > 0.1 then
            scale -= 0.05
        else
            sprRocket:setVisible(false)
        end
    end

    updateExit()

    sprRocket:setScale(scale,scale)


    sprRocket:setRotation(playdate.getCrankPosition())

    if active and (playdate.buttonIsPressed(playdate.kButtonA) or playdate.buttonIsPressed(playdate.kButtonUp)) then
        sprRocket:setImage(loopFire:image())
    end
end

function updateExit()
    if #sprBigRocket:overlappingSprites() > 0 and energy == totalEnergy then
        playerWin()
    end
end