level = {
	surf_background = nil,
	surf_foreground = nil,
	surf_items = nil,
	surf_original_items = nil,

	pos = {x=0, y=0},

	init = function()
		level.pos.x, level.pos.y = 0,0
		if level.surf_background ~= nil then surf.free(level.surf_background) end
		--level.surf_background = surf.load("rooms_background.bin")
		level.surf_background = surf.new(20*8,12*8)

		if level.surf_foreground ~= nil then surf.free(level.surf_foreground) end
		--level.surf_foreground = surf.load("rooms_foreground.bin")
		level.surf_foreground = surf.new(20*8,12*8)

		if level.surf_items ~= nil then surf.free(level.surf_items) end
		--level.surf_items = surf.load("rooms_items.bin")
		level.surf_items = surf.new(20*8,12*8)
		
		level.surf_original_items = surf.new(20*8,12*8)
		surf.source(level.surf_items)
		surf.target(level.surf_original_items)
		draw.surf(0,0,160,96,0,0)

		map.surf(level.surf_background)
		for y=0,12*8 do
			for x=0,20*8 do
				map.tile(x,y,1)
			end
		end
		map.surf(level.surf_foreground)
	    map.tile(10,10,16)

		surf.save(level.surf_background, "data/rooms_background.bin")
		surf.save(level.surf_foreground, "data/rooms_foreground.bin")
		surf.save(level.surf_items, "data/rooms_items.bin")

		shader.init("lynx.glsl")
		shader.enable();
	end,

	
	draw = function()
		-- Retallem la pantalla a la zona de joc
	    view.clip(0,8,160,96)

		-- Movem la càmara a l'habitació on estem
    	view.origin(level.pos.x*8,level.pos.y*8+8)

		-- Pintem el background
		surf.source(tiles)
		map.surf(level.surf_background)
	    map.draw()

		-- Movem 4x4 pixels la càmara per a pintar les sombres dels sprites i el foreground
    	view.origin(level.pos.x*8+4,level.pos.y*8+12)

		-- Pintem el foreground de negre
		map.surf(level.surf_foreground)
		pal.subpal(0,32,1)
	    map.draw()

		-- Pintem els sprites de negre
		-- [TODO]
		surf.source(sprites)
		draw.surf(0, 0, 16, 17, 10, 10, 16, 17)

		-- Movem la càmara al lloc que toca de nou, i tornem la paleta normal
    	view.origin(level.pos.x*8,level.pos.y*8+8)
		pal.subpal()

		-- Pintem el foreground
	    surf.source(tiles)
		map.surf(level.surf_foreground)
	    map.draw()

		-- Pintem els sprites
		-- [TODO]
		surf.source(sprites)
	    draw.surf(0, 0, 16, 17, 10, 10, 16, 17)

		-- Pintem la rejilla
		--for y=0,12 do draw.line(0,y*8, 160, y*8, 27) end
		--for x=0,20 do draw.line(x*8, 0, x*8, 104, 27) end
	end,

	peiv = function()
		pal.color(1, 1, 1, 1)
		return "HOLA OTHER UNIT"
	end
}