import 'CoreLibs/graphics.lua'
import 'CoreLibs/animator.lua'
import 'CoreLibs/easing.lua'

local gfx = playdate.graphics
playdate.display.setRefreshRate(50)

gfx.setBackgroundColor(gfx.kColorWhite)

lastPosition = playdate.getCrankPosition()

-- text = "Oop"

timeSinceLastSwing = 999999

local ball = gfx.image.new(10, 10, gfx.kColorBlack)
local animationDuration = 2000
local ballStartY, endY = -20, 250
local easingFunction = playdate.easingFunctions.outQuint
local ballAnimator = gfx.animator.new(animationDuration, ballStartY, endY, easingFunction)

local screenW, screenH = 400, 240
local centerX, centerY = screenW / 2, screenH / 2
local batBaseX, batBaseY = centerX - 34, 200

local circleR = 45

local ballY = ballStartY
local lastBallY = ballY
local ballX = 200
local ballVelX, ballVelY = 0, 0

local batTipX = 0
local batTipY = 0

local hit = false

function pitch()
    ballAnimator:reset()
    ballVelX = 0
    ballVelY = 0
    ballX = 200
    hit = false
end

function playdate.AButtonDown()
    pitch()
end

local pitchClockSec = 5
local elapsedTime = 0

function playdate.update()
    local deltaTime = playdate.getElapsedTime()
    playdate.resetElapsedTime()
    elapsedTime = elapsedTime + deltaTime

    if elapsedTime > pitchClockSec then
        elapsedTime = 0
        pitch()
    end

    gfx.clear()
    crankChange, acceleratedChange = playdate.getCrankChange()

    if hit then
        ballX = ballX + ballVelX
        ballY = ballY + ballVelY
    else
        ballY = ballAnimator:currentValue()
    end

    batAngle = math.rad(playdate.getCrankPosition() + 180)
    batTipX = batBaseX + (circleR * math.sin(batAngle))
    batTipY = batBaseY + (circleR * math.cos(batAngle))

    if hit == false and
     --(lastBallY - 2) < batTipY and ballY >= batTipY and batTipX > ballX then
    math.abs(ballY - batTipY) < 10 and batTipX > ballX then -- math.abs(batTipX - ballX) < 10 then
        ballAngle = batAngle + math.rad(90)
        mult = math.abs(acceleratedChange / 15)
        ballVelX = mult * -15 * math.sin(ballAngle)
        ballVelY = mult * 5 * math.cos(ballAngle)
        if ballVelY > 0 then
            ballVelX = ballVelX * -1
            ballVelY = ballVelY * -1
        end
        hit = true
    end
    lastBallY = ballY

    gfx.setColor(gfx.kColorBlack)
    -- ball:draw(ballX, ballY)
    gfx.setLineWidth(2)
    gfx.drawCircleAtPoint(ballX, ballY, 8)

    gfx.setLineWidth(5)
    gfx.drawLine(batBaseX, batBaseY, batTipX, batTipY)
end