[Found] Are objects from an old game still loaded when loading a new game ?

[MetalZelda]

Hello.
I need some informations.

I am currently working on the Title Screen of my project, but instead of taking place on a menu, it takes place on a game map.
The Title screen's startup is created when the engine has read main.lua in another file (to avoid bothering the "real" savegames on the File Selection menu)
But, as I access the File Selection screen, the map is still loaded (should be normal because the menu is displayed above the map)

My question is, is the map (and it's objects) that got loaded by the title screen file still loaded when the other savegame got started or are they destroyed and immediately replaced by the new game (for example : the surface) ?

Objects are attached to the map itself

Code (lua) Select Expand

-- Title Screen Map, Work in Progress
-- Todo : Movement
-- Display : It works better then I though
local map = ...
local savegame_menu = require("scripts/menus/savegames")

local draw_title_name = false

local surface = sol.surface.create(320, 240)
surface:fill_color({0, 0, 0})
surface:fade_out(80, function() sol.audio.play_music("menu_title_screen") end)

map.title_screen_logo_img = sol.surface.create("menus/title_screen/title_logo.png")

map.website_img = sol.text_surface.create{
  font = "lttp",
  font_size = 14,
  text_key = "title_screen.website",
  horizontal_alignment = "center"
}

map.press_space_img = sol.text_surface.create{
  font = "lttp",
  font_size = 14,
  text_key = "title_screen.press_space",
  horizontal_alignment = "center"
}

local function switch_press_space()
  map.press_space_img:fade_in(40, function()
    map.press_space_img:fade_out(40, function()
      switch_press_space()
    end)
  end)
end

function map:on_key_pressed(key)
  if key == "space" or key == "enter" then
    if not draw_title_name then
     switch_press_space()
     draw_title_name = true
    else
     surface:fade_in(40, function()
       sol.menu.start(sol.main, savegame_menu)
     end)
    end
    --
  end
return true
end

function map:on_draw(dst_surface)
  if draw_title_name then
    self.website_img:draw(dst_surface, 160, 220)
    self.title_screen_logo_img:draw(dst_surface, 88, 30)
    self.press_space_img:draw(dst_surface, 160, 200)
  end
  surface:draw(dst_surface, 0, 0)
end

File Generated when the engine starts

Code (lua) Select Expand

if not sol.game.exists("solarus_boot.dat") then
  local savegame = sol.game.load("solarus_boot.dat")
  savegame:set_starting_location("cutscene/scene_TitleScreen/0", "default")
  savegame:save()
end


And how it is started in main.lua

Code Select Expand

  -- Then the Title Screen (after "blabla presents").
  title_screen.on_finished = function()
    if sol.game.exists("solarus_boot.dat") then
      self.game = sol.game.load("solarus_boot.dat")
      sol.menu.stop_all(self)
      self:start_savegame(self.game)
    end
  end

This is how it looks actually


Any help will be appreciated
Thanks

[MetalZelda]

Oh well, the API about maps enlighten my thoughts, objects attached to the map are destroyed when loading a new game (because only 1 can exist at runtime)

http://www.solarus-games.org/doc/latest/lua_api_map.html#lua_api_map_overview_lifetime

And so on with the game, according to the on_finished function in the API, the previous game is destroyed to be replaced by the newer one

http://www.solarus-games.org/doc/latest/lua_api_game.html#lua_api_game_on_finished

And so with this, I did have succeed to implement Title Screen with working movements, etc, on Map within the project
https://www.youtube.com/watch?v=UQzOMs7Dv9A