GAME.LUA

local director = require("director")
local physics = require("physics")

physics.start()

local playGame = true;

local localGroup
localGroup = display.newGroup()

local background = display.newImage("clouds.png")
background.x = display.contentWidth/2; background.y = display.contentHeight/2;
localGroup:insert(background)

local score = display.newText( "Score: 0", 10, 25, nil, 24 )
score:setTextColor( 255,255,255 )
localGroup:insert(score)

scoreSet = 0

local floor = display.newRect(10,25,600,50)
floor.x = display.contentWidth/2; floor.y = 368
floor.name = "floor" -- This sets the name of the floor to later be used in collision functions
localGroup:insert(floor)
physics.addBody(floor, "static")

local paddle = display.newRect(0,0, 150, 75)
paddle.x = display.contentWidth/2; paddle.y = 325
paddle.name = "paddle" -- This sets the name of the paddle to later be used in collision functions
localGroup:insert(paddle)
physics.addBody(paddle, "kinematic")

local function onCrateCollision( self, event ) -- This is called when the crate collides with anything
	if ( event.phase == "began" ) then     -- This is here to make sure its only called once at the start of the collision to avoid errors
		if ( event.other.name == "floor" or event.other.name == "paddle" ) then     -- This checks to make sure its either the floor, or a paddle the crate is colliding with
			if (playGame == true) then
				hitSound = audio.loadSound("BEEPMULT.wav")
				audio.play(hitSound)
				self:removeSelf() -- Delete the crate
				self = nil
			end
		end
	end
end

local function onPickupCollision( self, event )
	if ( event.phase == "began" ) then
		if ( event.other.name == "paddle" or event.other.name == "floor" ) then
			if playGame == true then
				pickUpSound = audio.loadSound("BEEPFM.wav")
				audio.play(pickUpSound)
				self:removeSelf()
			end
		end
	end
end

function newCrate()
		j = display.newImage("crate.png");
		j.x = 30 + math.random(400)
		j.y = -100
		print("spawn")
		localGroup:insert(j)
		physics.addBody( j, { density=0.9, friction=0.3, bounce=0.3} )
		j.collision = onCrateCollision -- This sets it so the onCrateCollision function above is attachesd to the crate object ( j )
		j.name = "crate" -- This line names the crate so we can identify it later in collisions
		j:addEventListener( "collision", j )    -- j the object ( crate )now has a event listener for when it collised. We set j.collision to onCrateCollision above so we can just call j as the last object here

end

function newPickup()
rand = math.random(1000)

	if (rand <100 ) then
		b = display.newImage("star.png");
		b.x = 30 + math.random(400)
		b.y = -100
		b:rotate(math.random(360))
		localGroup:insert(b)
		physics.addBody(b, { density = 0.9, friction = 0.3, bounce = 0.3, radius = 20} )
		b.collision = onPickupCollision
		b.name = "star"
		b:addEventListener( "collision", b )
	end
end


local function drag(event) -- The following function is used for dragging the paddle around and updating its position

		local t = event.target

		local phase = event.phase
						if phase == "began" then
										local parent = t.parent
										parent:insert ( t )
										display.getCurrentStage():setFocus( t )

										t.isFocus = true;
										t.x0 = event.x - t.x

						elseif t.isFocus then

										if phase == "moved" then
														t.x = event.x - t.x0

										elseif phase == "ended" or phase == "cancelled" then
														display.getCurrentStage():setFocus( nil )
														t.isFocus = false
										end
						end
end


-- Event Listeners --
paddle:addEventListener( "touch", drag ) -- This will call the drag function when the paddle is touched
floor:addEventListener( "collision", floor ) -- this will call the floor:collision function below if anything colides with the floor
paddle:addEventListener( "collision", paddle ) -- this will call the paddle:collision function below if anything colides with the paddle

local dropCrates = timer.performWithDelay( 200, newCrate, 0 ) -- Sets the timer to drop crates
local dropPickup = timer.performWithDelay ( 500, newPickup, 0 )

function onAlert(event)
	if ( event.action == "clicked" ) then
		local i = event.index
		if i == 2 then
			print("yes!")
			director:changeScene("main", "crossfade")
		elseif i == 1 then
			print("no!")
			director:changeScene("game", "crossfade")
		end
	end
end

-- Check for Collisions --
function paddle:collision (event) -- This function is called whenever any object collides with the paddle
		if event.other.name == "crate" then     -- This checks to make sure the object collided is a crate (the below is stuff u added)
				paddle:removeEventListener("touch", drag)
				paddle:removeEventListener("collision", paddle )
				floor:removeEventListener("collision", floor)
				local alert = native.showAlert( "OH NO!", "YOU LOST, SORRY!",
																				{ "Retry", "Menu" }, onAlert)
		end

		if event.other.name == "star" then
			scoreSet = scoreSet + 5
			score.text = "Score: " .. scoreSet
		end
end

function floor:collision (event) -- This function is called whenever any object collides with the floor
		if ( event.other.name == "crate" ) then     -- This checks to make sure the object collided is a crate . If so we then add to the score and update the score text
				print("yo")
				scoreSet = scoreSet +1 -- Add one to the current score
				score.text = "Score: " .. scoreSet          -- Display the updated score
		end
end



function new()
	return localGroup
end