fpv/source/scenes/Game.lua

Game = {}
class("Game").extends(BaseScene)
local scene = Game

local font = Graphics.font.new('assets/fonts/Mini Sans 2X')

local function screenShake(shakeTime, shakeMagnitude)
    local shakeTimer = playdate.timer.new(shakeTime, shakeMagnitude, 0)
    shakeTimer.updateCallback = function(timer)
        local magnitude = math.floor(timer.value)
        local shakeX = math.random(-magnitude, magnitude)
        local shakeY = math.random(-magnitude, magnitude)
        playdate.display.setOffset(shakeX, shakeY)
    end
    shakeTimer.timerEndedCallback = function()
        playdate.display.setOffset(0, 0)
    end
end

function scene:setValues()
    scene.background = Graphics.image.new("assets/sprites/bg")

    scene.telemLostSound = playdate.sound.fileplayer.new( "assets/audio/telemko" )
    scene.telemLostSoundPlayed = false

    scene.balebas = {}

    scene.t = playdate.timer.new(10000)
    scene.t.repeats = true

    scene.tankTimer = playdate.timer.new(1000)

    scene.fp = playdate.sound.fileplayer.new( "assets/audio/war" )
    scene.fp:setVolume(0.7)
    scene.hello = playdate.sound.fileplayer.new( "assets/audio/hello" )

end

function scene:init()
	scene.super.init(self)
	scene:setValues()
end

function scene:start()
    scene.super.start(self)

    self.optionsMenu:addMenuItem("Main Menu", function() Noble.transition(Menu) end)
	Noble.showFPS = true
end

function scene:spawnBaleba()
    local baleba = Baleba(math.random(410, 900), math.random(10, 210), scene.player, true)
    baleba:add()

    return baleba
end

function scene:enter()
	scene.super.enter(self)

    scene.player = Player(30, 30)
    scene.player:add()
    
    scene.ground = Ground(400, 225, scene.player)
    scene.ground:add()

    scene.t.timerEndedCallback = function()
        if #scene.balebas >= 6 then
            return
        end
        
        local k = #scene.balebas+1
        --scene.balebas[k] = scene:spawnBaleba()
    end

    for i=1, 3 do
        scene.balebas[i] = scene:spawnBaleba()
    end

    local musicEnabled = Noble.Settings.get("music")
    scene.hello:play(1)
    if musicEnabled then
        scene.fp:play(0)
    end

    scene.tankTimer.timerEndedCallback = function()
        scene.tank = Tank(550, 190, scene.player, scene.ground)
        scene.tank:add()
    end
end

function scene:update()
	scene.super.update(self)

    if scene.player == nil then
        Noble.Text.draw("Telemetry Lost", 200, 110, Noble.Text.ALIGN_CENTER, false, font)
        return
    end

	if scene.player.isDead() and not scene.telemLostSoundPlayed then
        scene.telemLostSound:play(1)
        scene.telemLostSoundPlayed = true
        screenShake(500, 5)
        

        local et = playdate.timer.new(6000)
        et.timerEndedCallback = function()
            Noble.transition(Menu)
        end
        return
	end

    local bat = scene.player.getBat()
    bat = math.floor(bat/100)
    Noble.Text.draw("Bat: " .. bat, 10, 215, Noble.Text.ALIGN_LEFT, false, font)

end

function scene:destroyPlayer()
    if scene.player ~= nil then
        scene.player:remove()
        scene.player = nil
    end
end

function scene:exit()
    scene.super.exit(self)

    scene:destroyPlayer()

    scene.ground:remove()
    scene.ground = nil

    scene.tank:remove()
    scene.ground = nil

    for i=1, #scene.balebas do
        scene.balebas[i]:destroy()
        scene.balebas[i] = nil
    end

    scene.telemLostSound:stop()
    scene.telemLostSoundPlayed = false

    scene.fp:stop()

    scene.t:remove()
    scene.t = nil

    scene.tankTimer:remove()
    scene.tankTimer = nil


	Noble.showFPS = false
end


function scene:finish()
	scene.super.finish(self)
	playdate.display.setScale(1)
end