display.setStatusBar(display.HiddenStatusBar)
local storyboard = require "storyboard"
local scene = storyboard.newScene()
require("physics")
require("sprite")

function scene:createScene(event)
    local group = self.view
    physics.start()
    local background = display.newImage("visuals/game_background.png", 0, 0)
    ground = display.newImage("visuals/game_ground.png", 0, 590)
        physics.addBody(ground, "static")
    local characterSheet = sprite.newSpriteSheet("visuals/game_character.png", 100, 100)
    local characterSet = sprite.newSpriteSet(characterSheet, 1, 8)
        sprite.add(characterSet, "charsl", 1, 1, 60000, 0)
        sprite.add(characterSet, "charml", 2, 3, 150, 0)
        sprite.add(characterSet, "charsr", 5, 1, 60000, 0)
        sprite.add(characterSet, "charmr", 6, 3, 150, 0)
    character = sprite.newSprite(characterSet)
        physics.addBody(character, "static")
        character.x = display.contentWidth / 2
        character.y = 540
    local buttonSheet = sprite.newSpriteSheet("visuals/game_buttons.png", 75, 75)
    local buttonSet = sprite.newSpriteSet(buttonSheet, 1, 6)
        sprite.add(buttonSet, "leftu", 1, 1, 60000, 0)
        sprite.add(buttonSet, "leftt", 2, 1, 60000, 0)
        sprite.add(buttonSet, "rightu", 3, 1, 60000, 0)
        sprite.add(buttonSet, "rightt", 4, 1, 60000, 0)
        sprite.add(buttonSet, "pauseu", 5, 1, 60000, 0)
        sprite.add(buttonSet, "pauset", 6, 1, 60000, 0)
    buttonLeft = sprite.newSprite(buttonSet)
        buttonLeft:prepare("leftu")
        buttonLeft:play("leftu")
        buttonLeft.x = 57.5
        buttonLeft.y = 582.5
    buttonRight = sprite.newSprite(buttonSet)
        buttonRight:prepare("rightu")
        buttonRight:play("rightu")
        buttonRight.x = 902.5
        buttonRight.y = 582.5
    buttonPause = sprite.newSprite(buttonSet)
        buttonPause:prepare("pauseu")
        buttonPause:play("pauseu")
        buttonPause.x = 902.5
        buttonPause.y = 57.5
    storyboard.money = 0
    textMoney = display.newText(string.format("$%.02f", storyboard.money), 0, 20, native.systemFont, 75)
        textMoney:setReferencePoint(display.CenterReferencePoint)
        textMoney.x = display.contentWidth / 2
        textMoney:setTextColor(0, 0, 0)
    isFirstStart = true
    group:insert(background)
    group:insert(ground)
    group:insert(character)
    group:insert(buttonLeft)
    group:insert(buttonRight)
    group:insert(buttonPause)
    group:insert(textMoney)
end

function scene:enterScene(event)
    local group = self.view
    function collisionGround(event)
        event.other:removeSelf()
    end
    function collisionCharacter(event)
        if (event.other.type == "penny") then
            storyboard.money = storyboard.money + 0.01
        elseif (event.other.type == "nickel") then
            storyboard.money = storyboard.money + 0.05
        elseif (event.other.type == "dime") then
            storyboard.money = storyboard.money + 0.10
        elseif (event.other.type == "quarter") then
            storyboard.money = storyboard.money + 0.25
        elseif (event.other.type == "rock") then
            storyboard.gotoScene("gameover", "slideLeft", 1000)
        end
        textMoney.text = string.format("$%.02f", storyboard.money)
        event.other:removeSelf()
    end
    local motion = 0
    function moveLeft(event)
        motion = -9
        buttonLeft:prepare("leftt")
        buttonLeft:play("leftt")
        character:prepare("charml")
        character:play("charml")
        character.type = "left"
    end
    function moveRight(event)
        motion = 9
        buttonRight:prepare("rightt")
        buttonRight:play("rightt")
        character:prepare("charmr")
        character:play("charmr")
        character.type = "right"
    end
    function moveCharacter(event)
        character.x = character.x + motion
        if character.x < 50 then character.x = 50
        elseif character.x > 910 then character.x = 910 end
        buttonLeft:toFront()
        buttonRight:toFront()
    end
    function stopCharacter(event)
        if event.phase == "ended" then
            motion = 0
            buttonLeft:prepare("leftu")
            buttonLeft:play("leftu")
            buttonRight:prepare("rightu")
            buttonRight:play("rightu")
            if (character.type == "left") then
                character:prepare("charsl")
                character:play("charsl")
            elseif (character.type == "right") then
                character:prepare("charsr")
                character:play("charsr")
            end
        end
    end
    local isPaused = false
    function pauseGame()
        isPaused = not isPaused
        if isPaused then
            buttonPause:prepare("pauset")
            buttonPause:play("pauset")
            physics.pause()
            buttonLeft:removeEventListener("touch", moveLeft)
            buttonRight:removeEventListener("touch", moveRight)
            Runtime:removeEventListener("enterFrame", moveCharacter)
            Runtime:removeEventListener("touch", stopCharacter)
            timer.pause(createCoinsTimer)
        else
            buttonPause:prepare("pauseu")
            buttonPause:play("pauseu")
            physics.start()
            buttonLeft:addEventListener("touch", moveLeft)
            buttonRight:addEventListener("touch", moveRight)
            Runtime:addEventListener("enterFrame", moveCharacter)
            Runtime:addEventListener("touch", stopCharacter)
            timer.resume(createCoinsTimer)
        end
    end
    function createCoins()
        local coinSheet = sprite.newSpriteSheet("visuals/game_coins.png", 50, 50)
        local coinSet = sprite.newSpriteSet(coinSheet, 1, 25)
            sprite.add(coinSet, "penny", 1, 5, 250, 0)
            sprite.add(coinSet, "nickel", 6, 5, 250, 0)
            sprite.add(coinSet, "dime", 11, 5, 250, 0)
            sprite.add(coinSet, "quarter", 16, 5, 250, 0)
            sprite.add(coinSet, "rock", 21, 5, 250, 0)
        local coin = sprite.newSprite(coinSet)
            physics.addBody(coin, "dynamic")
            coin.isSensor = true
            coin.isFixedRotation = true
        local chooseCoin = math.random(1, 100)
        if chooseCoin >= 1 and chooseCoin <= 25 then
            coin.type = "penny"
        elseif chooseCoin >= 26 and chooseCoin <= 45 then
            coin.type = "nickel"
        elseif chooseCoin >= 46 and chooseCoin <= 65 then
            coin.type = "dime"
        elseif chooseCoin >= 66 and chooseCoin <= 80 then
            coin.type = "quarter"
        elseif chooseCoin >= 81 and chooseCoin <= 100 then
            coin.type = "rock"
        end
        coin:prepare(coin.type)
        coin:play()
        local chooseLocation = math.random(0, 1)
            coin.y = 400
            coin.x =  -25 + chooseLocation * 1010
            coin:applyLinearImpulse(0.2 - (chooseLocation * 0.4), -math.random(0.50, 3.45) / 10, coin.x, coin.y)
        function coin.exitScene(coin, event)
            timer.performWithDelay(1,
                function(...)
                    self:removeEventListener('exitScene', coin)
                end
            )
            display.remove(coin)
        end
        self:addEventListener('exitScene', coin)
        group:insert(coin)

    end
    storyboard.money = 0
    ground:addEventListener("collision", collisionGround)
    character:addEventListener("collision", collisionCharacter)
    buttonLeft:addEventListener("touch", moveLeft)
    buttonRight:addEventListener("touch", moveRight)
    Runtime:addEventListener("enterFrame", moveCharacter)
    Runtime:addEventListener("touch", stopCharacter)
    buttonPause:addEventListener("tap", pauseGame)
    if isFirstStart then
        physics.setGravity(0, 9.8)
        createCoinsTimer = timer.performWithDelay(500, createCoins, 0)
    else
        physics.resume()
        timer.resume(createCoinsTimer)
    end
end

function scene:exitScene(event)
    local group = self.view
    physics.pause()
    ground:removeEventListener("collision", collisionGround)
    character:removeEventListener("collision", collisionCharacter)
    buttonLeft:removeEventListener("touch", moveLeft)
    buttonRight:removeEventListener("touch", moveRight)
    Runtime:removeEventListener("enterFrame", moveCharacter)
    Runtime:removeEventListener("touch", stopCharacter)
    buttonPause:removeEventListener("tap", pauseGame)
    timer.pause(createCoinsTimer)
end

function scene:destroyScene(event)
    local group = self.view
    physics.stop()
    timer.cancel(createCoinsTimer)
end

scene:addEventListener("createScene", scene)
scene:addEventListener("enterScene", scene)
scene:addEventListener("exitScene", scene)
scene:addEventListener("destroyScene", scene)
return scene