require "src.init"

local lg = love.graphics

function love.load()
  main_init()
  local scn = new_scene()
  event_bind(scn.on_update, "Body", body_sys)
  event_bind(scn.on_update, "Player", player_movement_sys)
  event_bind(scn.on_update, "Sprite", sprite_anim_sys)

  event_bind(scn.on_draw, "Sprite", sprite_draw_sys)
  event_bind(scn.on_draw, "Tilemap", tilemap_draw_sys)

  event_bind(scn.on_ui, "Player", player_ui_sys)

  set_scene(scn)

  new_player(100, 100)

  box1 = phys.Box.new(20, 20, 16, 16, {
    layers = {},
    mask = { "hard" },
  })

  ground1 = phys.Box.new(5, 50, 64, 16, {})
  ground2 = phys.Box.new(64 - 16, 50 + 16, 16, 64, {})

  local tilemap = new_tilemap(64, 64)
  scn.tilemap = tilemap

  set_tile(tilemap, 0, 0, 1)
end

function love.update(dt)
  local scn = get_current_scene()
  assert(scn, "No scene set.")

  fire_event(scn.on_update, dt)
  box1:update(0, 5, dt)
  flush_scene()
end

function love.draw(dt)
  lg.origin()
  lg.setCanvas({viewport, stencil=true})
  lg.clear()

  local scn = get_current_scene()
  assert(scn, "No scene set.")

  fire_event(scn.on_draw, dt)

  im.begin_step()

  fire_event(scn.on_ui)

  im.draw()

  im.end_step()

  -- TODO: Take care of weird displays
  lg.setCanvas()
  local scr_width, scr_height = lg.getDimensions()
  WindowScale = min(scr_width / SCR_WIDTH, scr_height / SCR_HEIGHT)

  lg.draw(
    viewport,
    scr_width / 2, scr_height / 2, 0,
    WindowScale, WindowScale,
    SCR_WIDTH / 2, SCR_HEIGHT / 2)

  lg.print(tostring(love.timer.getFPS()))
  input_step()
end