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RedMew/utils/utils.lua

133 lines
3.2 KiB
Lua

local Module = {}
local Game = require 'utils.game'
Module.distance = function(pos1, pos2)
local dx = pos2.x - pos1.x
local dy = pos2.y - pos1.y
return math.sqrt(dx * dx + dy * dy)
end
-- rounds number (num) to certain number of decimal places (idp)
math.round = function(num, idp)
local mult = 10 ^ (idp or 0)
return math.floor(num * mult + 0.5) / mult
end
function math.clamp(num, min, max)
if num < min then
return min
elseif num > max then
return max
else
return num
end
end
Module.print_except = function(msg, player)
for _, p in pairs(game.players) do
if p.connected and p ~= player then
p.print(msg)
end
end
end
Module.print_admins = function(msg)
for _, p in pairs(game.players) do
if p.connected and p.admin then
p.print(msg)
end
end
end
Module.get_actor = function()
if game.player then
return game.player.name
end
return '<server>'
end
Module.cast_bool = function(var)
if var then
return true
else
return false
end
end
Module.find_entities_by_last_user =
function(player, surface, filters)
if type(player) == 'string' or not player then
error(
"bad argument #1 to '" ..
debug.getinfo(1, 'n').name .. "' (number or LuaPlayer expected, got " .. type(player) .. ')',
1
)
return
end
if type(surface) ~= 'table' and type(surface) ~= 'number' then
error(
"bad argument #2 to '" ..
debug.getinfo(1, 'n').name .. "' (number or LuaSurface expected, got " .. type(surface) .. ')',
1
)
return
end
local entities = {}
local surface = surface
local player = player
local filters = filters or {}
if type(surface) == 'number' then
surface = game.surfaces[surface]
end
if type(player) == 'number' then
player = Game.get_player_by_index(player)
end
filters.force = player.force.name
for _, e in pairs(surface.find_entities_filtered(filters)) do
if e.last_user == player then
table.insert(entities, e)
end
end
return entities
end
Module.ternary = function(c, t, f)
if c then
return t
else
return f
end
end
local minutes_to_ticks = 60 * 60
local hours_to_ticks = 60 * 60 * 60
local ticks_to_minutes = 1 / minutes_to_ticks
local ticks_to_hours = 1 / hours_to_ticks
Module.format_time = function(ticks)
local result = {}
local hours = math.floor(ticks * ticks_to_hours)
if hours > 0 then
ticks = ticks - hours * hours_to_ticks
table.insert(result, hours)
if hours == 1 then
table.insert(result, 'hour')
else
table.insert(result, 'hours')
end
end
local minutes = math.floor(ticks * ticks_to_minutes)
table.insert(result, minutes)
if minutes == 1 then
table.insert(result, 'minute')
else
table.insert(result, 'minutes')
end
return table.concat(result, ' ')
end
return Module