gamescene = gideros.class(Sprite)




function gamescene:init()

self:addEventListener("exitBegin", self.onExitBegin, self)

print("gamescene")

b2.setScale(7)

Level = TiledAsWorldEditor.new("level.lua")


gamesceneSelf = self


self:addChild(Level)

self.lander = self:lander(600, 50)




currentscene = gamescene


paused = false
contact = false

destroy = false


destroyed = false



 gamesceneSelf:addEventListener(Event.ENTER_FRAME, self.onEnterFrame, self)



menubg = Bitmap.new(Texture.new("images/menubg.png"))

	menubg:setPosition(200, 120)





mousedown = false
--Level:EnableDebugDrawing(1)

	fuelbar = DT_HealthBar.new({
    width = 200,
    height = 20,
    front_color = 0x48b6db,
    back_color = 0x5b5b5b,
    max_value = 200
})

self:addChild(fuelbar)

	fuelbar:setPosition(10, 210)
	fuelbar:setRotation(-90)






self:addEventListener("openMenu", self.openMenu, self)

Level.B2_Worlds[1]:addEventListener(Event.POST_SOLVE, test)


Level.B2_Worlds[1]:addEventListener(Event.BEGIN_CONTACT, self.onBeginContact, self)
Level.B2_Worlds[1]:addEventListener(Event.END_CONTACT, self.onEndContact, self)

self:addEventListener(Event.KEY_UP, onKeyUp)






fuel = 600

accelerometer:start()
self.filter = 0.2
self.fx = 0
self.fy = 0


local menuButton = Button.new(Bitmap.new(Texture.new("images/menu_up.png")), Bitmap.new(Texture.new("images/menu_down.png")))
	menuButton:setPosition(740, 35)
	self:addChild(menuButton)

	menuButton:addEventListener("click",
		function()
			gamescene:openMenu()

		end
	)


restartButton = Button.new(Bitmap.new(Texture.new("images/restart_up.png")), Bitmap.new(Texture.new("images/restart_down.png")))
	restartButton:setPosition(300, 200)


	restartButton:addEventListener("click",
		function()

			sceneManager:changeScene("gamescene", 1, SceneManager.crossfade, easing.outBack)
		end
	)



	self.worldW = 1800
self.worldH = 480








function self:onMouseDown(event)


mousedown = true
print("mousedown")


	end


	function self:onMouseMove(event)



	end


	function self:onMouseUp(event)

mousedown = false
print("mouseup")

	end

	self:addEventListener(Event.MOUSE_DOWN, self.onMouseDown, self)
	self:addEventListener(Event.MOUSE_MOVE, self.onMouseMove, self)
	self:addEventListener(Event.MOUSE_UP, self.onMouseUp, self)




end







function gamescene:lander(x, y)



local lander1 = Bitmap.new(Texture.new("images/lander.png"))
	local lander2 = Bitmap.new(Texture.new("images/lander2.png"))
	local lander3 = Bitmap.new(Texture.new("images/lander3.png"))

	lander1:setAnchorPoint(0.5, 0.5)
	lander2:setAnchorPoint(0.5, 0.5)
	lander3:setAnchorPoint(0.5, 0.5)

	local lander = MovieClip.new{
	{1, 1, lander1},
	{2, 4, lander2},
	{5, 7, lander3},
	}

	lander:setGotoAction(7, 2)

	function lander:switchAnimation()

	if stopped == true then
	self:gotoAndPlay(2)

	stopped = false

	end

	end

	function lander:switchAnimation2()
	self:gotoAndStop(1)

	stopped = true
	end

	lander:setPosition(x,y)





	local body = Level.B2_Worlds[1]:createBody{type = b2.DYNAMIC_BODY}
	body:setPosition(lander:getX(), lander:getY())
	body:setAngle(lander:getRotation() * math.pi/180)
	body:setLinearVelocity(5, 0)



	local polygon = b2.PolygonShape.new()
	polygon:set(0, -22, 16, 10, -16, 10)
	local fixture = body:createFixture{shape = polygon, density = 1.0,
	friction = 2, restitution = 0.01}
	lander.body = body
	lander.body.type = "lander"
lander.body.Name = "lander"

	Level:addChild(lander)

	print("body created")



	return lander
end


function gamescene:onEnterFrame()



if not paused then
Level.B2_Worlds[1]:step(1/60, 8, 3)


end







fuelbar:set(fuel / 3)



if destroyed == false and paused == false then


local screenW = application:getContentWidth()
local screenH = application:getContentHeight()
local offsetX = 0;
local offsetY = 0;


if((self.worldW - self.lander:getX()) < screenW/2) then
    offsetX = -self.worldW + screenW
elseif(self.lander:getX() >= screenW/2) then
    offsetX = -(self.lander:getX() - screenW/2)
end

Level:setX(offsetX)

if((self.worldH - self.lander:getY()) < screenH/2) then
    offsetY = -self.worldH + screenH
elseif(self.lander:getY()>= screenH/2) then
    offsetY = -(self.lander:getY() - screenH/2)
end

Level:setY(offsetY)









if fuel >= 0 and mousedown == true then

local forcex = math.cos(self.lander.body:getAngle() - math.pi / 2)
	local forcey = math.sin(self.lander.body:getAngle() - math.pi / 2)

self.lander.body:applyLinearImpulse(forcex * 0.8, forcey * 0.8 , self.lander:getX(), self.lander:getY())
	print("angle:", self.lander.body:getAngle(), "x:", forcex, "y:", forcey, "fuel:", fuel)

	self.lander:switchAnimation()

	fuel = (fuel - 2)



	elseif fuel < 0 or mousedown == false then

	self.lander:switchAnimation2()




end


if contact == false then

local x, y = accelerometer:getAcceleration()

self.fx = x * self.filter + self.fx * (1 - self.filter)
self.fy = y * self.filter + self.fy * (1 - self.filter)

self.lander.body:setAngularVelocity(-self.fy * 8)

end


if destroy == true then

destroyLander()

end

end






end

function destroyLander()

destroyed = true

Level:removeChild(gamesceneSelf.lander)
Level.B2_Worlds[1]:destroyBody(gamesceneSelf.lander.body)

print("game over!")

end


function gamescene:onBeginContact(e)

 local fixtureA = e.fixtureA
    local fixtureB = e.fixtureB
    local bodyA = fixtureA:getBody()
    local bodyB = fixtureB:getBody()

	if bodyA.Name == "Terrain" and bodyB.type == "lander" then

print("contact")



contact = true

elseif bodyB.Name == "Terrain" and bodyA.type == "lander" then

print("contact")



contact = true

end


end



function gamescene:onEndContact(e)

 local fixtureA = e.fixtureA
    local fixtureB = e.fixtureB
    local bodyA = fixtureA:getBody()
    local bodyB = fixtureB:getBody()

	if bodyA.Name == "Terrain" and bodyB.type == "lander" then



contact = false

print("no contact")

elseif bodyB.Name == "Terrain" and bodyA.type == "lander" then



contact = false

print("no contact")
end


end

function test(event)
if event.maxImpulse > 30 then
	print("Impulse:", event.maxImpulse)

	if contact == true and destroyed == false then
	destroy = true
	end

	end
end


function gamescene:openMenu()




if paused == false then
TiledAsWorldEditor:Pause()
paused = true
print("game paused")
gamesceneSelf:addChild(menubg)
gamesceneSelf:addChild(restartButton)

elseif paused == true then
TiledAsWorldEditor:UnPause()
paused = false
gamesceneSelf:removeChild(menubg)
gamesceneSelf:removeChild(restartButton)
print("game resumed")


end

end






function onKeyUp(event)
	if event.keyCode == KeyCode.MENU then

	gamescene:openMenu()

	end
end

function gamescene:onExitBegin()
    gamesceneSelf:removeEventListener(Event.ENTER_FRAME, self.onEnterFrame, self)

	collectgarbage()

	print("exiting")


end