local Background = Object:extend()

function Background:new(controller, levelname)
  self.controller = controller
  local backname    = self.controller.datas.background or "city"
  local tileline    = self.controller.datas.tiles or 1
  local borderline  = self.controller.datas.borders or 1

  self.textures = {}
  self.textures.tiles   = love.graphics.newImage("assets/levels/normaltile.png")
  self.textures.back1   = love.graphics.newImage("assets/levels/backgrounds/" .. backname .. "-back.png")
  self.textures.back2   = love.graphics.newImage("assets/levels/backgrounds/" .. backname .. "-fore.png")
  self.textures.borders = love.graphics.newImage("assets/levels/borders.png")

  self.quads = {}
  self.quads.tiles = {}

  local w, h = self.textures.tiles:getDimensions()
  self.quads.tiles[1] = love.graphics.newQuad( 0, tileline*24, 40, 24, w, h)
  self.quads.tiles[2] = love.graphics.newQuad(40, tileline*24, 40, 24, w, h)

  local w, h = self.textures.borders:getDimensions()
  self.quads.borders = love.graphics.newQuad(0, borderline*10, 80, 10, w, h)


end

function Background:destroy()
  self.back1:release( )
  self.back2:release( )
end

function Background:draw()
  local x0, x1, x2

  local turn = 0

  x0 = 0
  x1 = x0 / 3 % 240
  x2 = x0 / 9 % 480

  local sx = 1
  for i=1, 4 do
    if (i == 2) or (i == 4) then
      love.graphics.draw(self.textures.back1, (i)*240 - x2, 20, 0, -1, 1)
    else
      love.graphics.draw(self.textures.back1, (i-1)*240 - x2, 20, 0, 1, 1)
    end
  end


    for i=1, 7 do
      love.graphics.draw(self.textures.borders, self.quads.borders, (i-1)*80, 80, 0, 1, 1)
    end

  for i=1, 3 do
    love.graphics.draw(self.textures.back2, (i-1)*240 - x1, 20, 0, 1, 1)
  end

  --self:drawBorders()
  self:drawGround(-8, 86)
end

function Background:drawGround(x, y)
  for i=1, 9 do
    for j= -2, 17 do
      local k = 1 + ((i + j) % 2)
      if (i >= 1) and (i <= 7) and (j >= 1) and (j <= 12) then
        love.graphics.setColor(1, 1, 1, 1)
      else
        love.graphics.setColor(.6,.6,.6, 1)
      end

      love.graphics.draw(self.textures.tiles, self.quads.tiles[k], x + (j-1)*31 + (i-1)*10 , y + (i-1)*20)
    end
  end

  love.graphics.setColor(1, 1, 1, 1)
end

return Background