Files
factorio-scenario-ExpCluster/modules/addons/station-auto-name.lua
2020-08-16 19:38:14 +01:00

87 lines
3.3 KiB
Lua

---LuaPlayerBuiltEntityEventFilters
---Events.set_event_filter(defines.events.on_built_entity, {{filter = "name", name = "fast-inserter"}})
local Event = require 'utils.event' --- @dep utils.event
--Credit to Cooldude2606 for using his lua magic to make this function.
local directions = {
['W'] = -0.875,
['NW'] = -0.625,
['N'] = -0.375,
['NE'] = -0.125,
['E'] = 0.125,
['SE'] = 0.375,
['S'] = 0.625,
['SW'] = 0.875
}
local function Angle(entity)
local angle = math.atan2(entity.position.y, entity.position.x)/math.pi
for direction, requiredAngle in pairs(directions) do
if angle < requiredAngle then
return direction
end
end
return 'W'
end
local custom_string = ' *'
local custom_string_len = #custom_string
local function station_name_changer(event)
local entity = event.created_entity
local name = entity.name
if name == "entity-ghost" then
if entity.ghost_name ~= "train-stop" then return end
local backername = entity.backer_name
if backername ~= '' then
entity.backer_name = backername..custom_string
end
elseif name == "train-stop" then --only do the event if its a train stop
local backername = entity.backer_name
if backername:sub(-custom_string_len) == custom_string then
entity.backer_name = backername:sub(1, -custom_string_len)
return
end
local boundingBox = entity.bounding_box
-- expanded box for recourse search:
local bounding2 = { {boundingBox.left_top.x -100 ,boundingBox.left_top.y -100} , {boundingBox.right_bottom.x +100, boundingBox.right_bottom.y +100 } }
-- gets all resources in bounding_box2:
local recourses = game.surfaces[1].find_entities_filtered{area = bounding2, type = "resource"}
if #recourses > 0 then -- save cpu time if their are no recourses in bounding_box2
local closest_distance
local px, py = boundingBox.left_top.x, boundingBox.left_top.y
local recourse_closed
--Check which recourse is closest
for i, item in ipairs(recourses) do
local dx, dy = px - item.bounding_box.left_top.x, py - item.bounding_box.left_top.y
local distance = (dx*dx)+(dy*dy)
if not closest_distance or distance < closest_distance then
recourse_closed = item
closest_distance = distance
end
end
local item_name = recourse_closed.name
if item_name then -- prevent errors if something went wrong
local item_name2 = item_name:gsub("^%l", string.upper):gsub('-', ' ') -- removing the - and making first letter capital
local Item_ore_fluid = "item"
if item_name == "crude-oil" then
Item_ore_fluid = "fluid"
end
--Final string:
entity.backer_name = string.format("[L] [img=%s.%s] %s %s (%s)", Item_ore_fluid, item_name, item_name2, entity.backer_name, Angle( entity ))
end
end
end
end
-- Add handler to robot and player build entities
Event.add(defines.events.on_built_entity, station_name_changer)
Event.add(defines.events.on_robot_built_entity, station_name_changer)