---@module 'obj/Room'

---@class Room:Object
---@field area Area room area
---@field id string room id
---@field super Room
---@field main_canvas love.Canvas
local Room = Object:extend()

---Instantiates room.
function Room:new()
    self.area = Area(self)
    self.id = UUID()
    self.main_canvas = love.graphics.newCanvas(gw, gh)
end

---Updates room (see [love.update()](lua://love.update))
---@param dt number delta time
function Room:update(dt)
---@diagnostic disable-next-line: undefined-field
    camera.smoother = Camera.smooth.damped(5)
---@diagnostic disable-next-line: param-type-mismatch
    camera:lockPosition(dt, gw/2, gh/2)

    self.area:update(dt)
end

---Draws graphics (see [love.draw()](lua://love.draw))
---**DO NOT OVERRIDE:** use Room:canvasDraw() instead
function Room:draw()
    love.graphics.setCanvas(self.main_canvas)
    love.graphics.clear()
    camera:attach(0, 0, gw, gh)
        self:canvasDraw()
    camera:detach()
    if DEBUG then
        love.graphics.print('objects: '..#self.area.game_objects,2,gh-16)
        love.graphics.print('DEBUG', 2, 2)
    end
    love.graphics.setCanvas()

    love.graphics.setColor(255, 255, 255, 255)
    love.graphics.setBlendMode('alpha', 'premultiplied')
    love.graphics.draw(self.main_canvas, 0, 0, 0, sx, sy)
    love.graphics.setBlendMode('alpha')
end

---Draw to the canvas
function Room:canvasDraw()
    self.area:draw()
end

---Destroys room
function Room:destroy()
    self.area:destroy()
    self.area = nil
end

return Room