Overview

This mod propose a new way to get fish, main concept is to make it feel unique and interesting as possible.

Original idea is I want a way get different kind of fish for my mod Planet Virentis (but you can use whatever you want)

How it work (technical)

Just place the dock on water edges (just like asteroid collector), a fishing boat will automatic spawn and start to collect fish around (base on recipe selected).

The fishing dock is act like spawner, it will try to spawn fish everytime a craft succeeds. It can only spawn on to specific tiles (every nauvis water tiles for normal fish), so the more water, the more chance it will spawn (maximum at 100% when all tiles are water).

Don't worry too much about not getting 100% spawn rate, the algorithm will try to spawn 5 times, which mean if you have water 40%, the spawn rate will be 1-(1-0.4)^5 = 92.2%

For developer

If you want to add your type of fish, it super easy.

After you add your fish item and entity like normal.

Add fishing mock prototypes

Use util (or just copy the inside code if you want more adjustment)

local fishing_utils = require("__fishing-dock__.prototypes.utils")

fishing_utils.create_fishing_content({
  fish_name = "fish",
  icon = "__base__/graphics/icons/fish.png",
  ingredients = {
    { type = "item", name = "copper-biter-egg", amount = 1 }
  },
  recipe_name = "fishing-fish-pelagos", -- Optional: default to "fishing-{fish_name}"
  energy = 10,                          -- Optional: default 10
  order = "aa",                         -- Optional
  subgroup = "fishing",                 -- Optional: default "fishing"
  allow_productivity = true             -- Optional: default true
  surface_conditions = {                -- Optional
    {
      property = "pressure",
      min = 1809,
      max = 1809,
    }
  },
})

Register to logics

In control side, add fish entity and spawnable tiles. Usually in on_init and on_configuration_changed.

local function on_init()
  remote.call(
    "fishing_dock",
    "register_fish",
    "fishing-fish-pelagos", -- Recipe name
    {
      spawn_entity_name = "fish",
      spawn_tiles = { "pelagos-deepsea", "water" }
      target_entity_name = "fish",    -- Optional: default to spawn_entity_name
      min_spawn_radius = 5,           -- Optional: default 5
      max_spawn_radius = 20,          -- Optional: default 20
      max_count = 15,                 -- Optional: default 15
      spawn_angle = 1,                -- Optional: default 1 (full circle)
      boat_radius = 24,               -- Optional: default 24 (same as radius visualization)
      move_to_dock_after_spawn = true -- Optional: default false (if true, it will command the unit to move toward dock after spawn, only work with units that has commandable)
    }
  )
end

script.on_init(on_init)
script.on_configuration_changed(on_init)

Adding your custom dock type

local function on_init()
  remote.call(
    "fishing_dock",
    "register_dcok",
    "watchtower",
    {
      boat_entity_name = "galley",
      seperation_distance = "40",
      boat_collect_radius = "64",
      boat_spawn_offset = 5 -- Offset from dock center, to avoid spawn inside the dock
    }
  )
end

script.on_init(on_init)
script.on_configuration_changed(on_init)