Updates/frontier v4

[RedRafe]

Changes

• [x] Tweaked map settings for pollution, resource richness/frequency
• [x] Added random markets around the map (attachment 1)
• [x] Added "Spawn shop" (attachment 2)
• [x] Battery charge module now supports modded accumulators as well

Issues

• [ ] the soft reset mechanic does not fully work. Which means it works in single-player and on our MP server at low loads, but the server itself will crash on high loads and high player count (tested, the server just takes too much time and shuts off) - (attachment 3: even alone on our server, it goes non-responsive for almost the full bar before catching up and actually loading the map, while if there are many players, it just never catches back and crashes).

These functions are pretty heavy to execute and are the ones triggering in this order when restarting, causing the bottleneck:

Main.on_game_finished(), Main.on_game_started() and especially Main.reveal_spawn_area():

function Main.reveal_spawn_area()
  local surface = RS.get_surface()
  local far_left, far_right = this.kraken_distance + this.left_boundary * 32 + 1, this.right_boundary * 32 + this.wall_width
  surface.request_to_generate_chunks({ x = 0, y = 0 }, math.ceil(math_max(far_left, far_right, this.height * 32) / 32))
  surface.force_generate_chunk_requests()

  Main.compute_silo_coordinates(this.silo_starting_x + math_random(100))
  Main.move_silo()
  Terrain.create_wall(this.right_boundary * 32, this.wall_width)

  game.forces.player.chart(surface, { { -far_left - 32, -this.height * 16 }, { far_right + 32, this.height * 16 } })
end

I've increased the gap between the surface clear and the new map regen, but wont probably be enough. Maybe I should offload the map reveal to task manager and have it consume it over multiple ticks? Dunno if you have other suggestion on the matter. S30 testing has a local save frontier-zombie... just ~30s prio map reset if you wanna take a look

Random market with item-to-item trade offers

Spawn shop with upgrades

Restart issue

[grilledham]

For the .png graphics, can we move them to a mod? I'm a little concerned that those assets will increase the size of all save files even for other scenarios. Maybe 100KBs doesn't seem like much now, but I can imagine that you will want to add more later.

[RedRafe]

Thanks! I've postponed terrain gen for so long, it is now time to finally convert it from event-react-driven to the builder system tools (I know you're using it for crash site outposts and my first attempts with it were miserable due to math.random stuff. Hopefully I'll get a better understanding and do a better job this time).

assets -> will move file size -> (I know) I've already divided it multiple sub-modules so when it'll be time to split it I wont have to entangle each part. Only thing holding me back is sharing the global table but I know I'll have to expose it eventually so I'll bite the bullet on this too 😅

[RedRafe]

For surface.clear() I can maybe offload good part of it to task manager and do LuaSurface::delete_chunk(position) on ticks, and then call the clear at T-X_ticks to get rid of any remaining chunks, but I guess clear will do some extra crazy stuff so I'll keep it distant from player's comeback on surface too

[RedRafe]

Yes this can go in, I will PR other parts soon ™️