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-- `Selector` (Element)
-- Used in Menu for selecting various things from list. Works for each Controller set or globally.
--[[
How to use `Selector` in `Menu` config file?
selector:new(menu)
:setPosition(x, y)
:set("list", require "file_with_list")
:set("global", true/false) -- true: single selector; false: selector for each controller set present
:init()
]]
Selector = {
parent,
x = 0,
y = 0,
focused = false,
global = false,
list,
sets,
locks,
selections
}
-- Constructor
function Selector:new(parent)
local o = {}
setmetatable(o, self)
self.__index = self
o.parent = parent
return o
end
-- Position
function Selector:getPosition()
return self.x, self.y
end
function Selector:setPosition(x,y)
self.x, self.y = x, y
return self
end
-- General setter for Menu configuration files
function Selector:set(name, func)
if type(name) == "string" and func ~= nil then
self[name] = func
end
return self
end
-- Initialize Selector with current settings.
function Selector:init()
-- Make sure that there is list present
if self.list == nil then
self.list = {}
end
-- Initialize global Selector
if self.global then
self.locks = {false}
self.selections = {1}
-- Initialize Selector for Controllers
else
self.sets = Controller.getSets()
self.locks = {}
self.selections = {}
for i=1,#self.sets do
self.locks[i] = false
self.selections[i] = 1
end
end
end
-- Cycle through list on given number
function Selector:next(n) end
function Selector:previous(n) end
-- Get number associated with a given set
function Selector:checkNumber(set)
if self.global then return 1 end -- For global Selector
for n,check in pairs(self.sets) do
if check == set then return n end
end
end
-- Check if given number is locked
function Selector:isLocked(n)
return self.locks[n]
end
-- Get value of selection of given number
function Selector:getSelectionValue(n)
return self.selections[n]
end
-- Get value from list by selection
function Selector:getListValue(i)
return self.list[i]
end
-- Menu callbacks
function Selector:focus() -- Called when Element gains focus
self.focused = true
return true
end
function Selector:blur() -- Called when Element loses focus
self.focused = false
end
-- LÖVE2D callbacks
function Selector:draw(scale) end
function Selector:update(dt) end
-- Controller callbacks
function Selector:controlpressed(set, action, key) end
function Selector:controlreleased(set, action, key) end
return Selector
|
