1 files changed, 290 insertions, 0 deletions
diff --git a/not/Selector.lua b/not/Selector.lua
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+++ b/not/Selector.lua
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+--- `Selector`
+-- 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)
+	:setMargin(8) -- each block has marigin on both sides; they do stack
+	:setSize(32, 32) -- size of single graphics frame
+	:set("list", require "nautslist")
+	:set("icons_i", love.graphics.newImage("assets/portraits.png"))
+	:set("icons_q", require "portraits")
+	:set("global", false) -- true: single selector; false: selector for each controller set present
+	:init()
+]]
+Selector = {
+	parent = --[[not.Menu]]nil,
+	x = 0,
+	y = 0,
+	width = 0,
+	height = 0,
+	margin = 0,
+	focused = false,
+	global = false,
+	delay = 2,
+	first = false,
+	list,
+	sets,
+	locks,
+	selections,
+	shape = "portrait",
+	sprite,
+	quads,
+	icons_i,
+	icons_q
+}
+
+-- `Selector` is a child of `Element`.
+require "not.Element"
+Selector.__index = Selector
+setmetatable(Selector, Element)
+
+-- Constructor
+function Selector:new (parent)
+	local o = setmetatable({}, self)
+	o.parent = parent
+	o.sprite, o.quads = parent:getSheet()
+	return o
+end
+
+-- Size of single block
+function Selector:getSize ()
+	return self.width, self.height
+end
+function Selector:setSize (width, height)
+	self.width, self.height = width, height
+	return self
+end
+
+-- Spacing between two blocks
+function Selector:getMargin ()
+	return self.margin
+end
+function Selector:setMargin (margin)
+	self.margin = margin
+	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.sets = {}
+		self.locks = {false}
+		self.selections = {1}
+	-- Initialize Selector for Controllers
+	else
+		self.sets = Controller.getSets()
+		self.locks = {}
+		self.selections = {}
+		for n=1,#self.sets do
+			self.locks[n] = false
+			self.selections[n] = 1
+		end
+	end
+	return self
+end
+
+-- Cycle through list on given number
+function Selector:next (n)
+	local current = self.selections[n]
+	self:setSelection(n, current + 1)
+end
+function Selector:previous (n)
+	local current = self.selections[n]
+	self:setSelection(n, current - 1)
+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)
+	local n = n or 1
+	return self.locks[n]
+end
+
+-- Sets value of selection of given number. Returns old.
+function Selector:setSelection (n, new)
+	-- Functception. It sounds like fun but it isn't.
+	local function limit(new, total)
+		if new > total then
+			return limit(new - total, total)
+		elseif new < 1 then
+			return limit(total + new, total)
+		else 
+			return new
+		end
+	end
+	local n = n or 1
+	local old = self.selections[n]
+	self.selections[n] = limit(new, #self.list)
+	return old
+end
+
+-- Get value of selection of given number
+function Selector:getSelection (n)
+	local n = n or 1
+	return self.selections[n]
+end
+
+-- Get value from list by selection
+function Selector:getListValue (i)
+	return self.list[i]
+end
+
+-- Checks if selection of given number is unique within Selector scope.
+function Selector:isUnique (n)
+	local selection = self:getSelection(n)
+	for fn,v in pairs(self.selections) do
+		if fn ~= n and self:isLocked(fn) and v == selection then
+			return false
+		end
+	end
+	return true
+end
+
+-- Get list of selections, checks if not locked are allowed.
+function Selector:getFullSelection (allowed)
+	local allowed = allowed
+	if allowed == nil then allowed = false end
+	local t = {}
+	for n,v in pairs(self.selections) do
+		local name = self:getListValue(self:getSelection(n))
+		local locked = self:isLocked(n)
+		if locked or allowed then
+			local a = {name}
+			if self.sets[n] then table.insert(a, self.sets[n]) end
+			table.insert(t, a)
+		end
+	end
+	return t
+end
+
+-- Rolls and returns random selection from list that is not locked.
+function Selector:rollRandom (avoids)
+	-- Me: You should make it simpler.
+	-- Inner me: Nah, it works. Leave it.
+	-- Me: Ok, let's leave it as it is.
+	local avoids = avoids or {}
+	local total = #self.list
+	local random = love.math.random(1, total)
+	local eligible = true
+	for _,avoid in ipairs(avoids) do
+		if random == avoid then
+			eligible = false
+			break
+		end
+	end
+	if not eligible or self:isLocked(random) then
+		table.insert(avoids, random)
+		return self:rollRandom(avoid)
+	else
+		return random
+	end
+end
+
+-- Draw single block of Selector
+function Selector:drawBlock (n, x, y, scale)
+	if self.quads == nil or self.sprite == nil then return end
+	local x, y = x or 0, y or 0
+	local name = self:getListValue(self:getSelection(n))
+	local locked = self:isLocked(n)
+	local sprite = self.sprite
+	local quad = self.quads
+	local icon  = self.icons_i
+	local iconq = self.icons_q[name]
+	local w,h = self:getSize()
+	local unique = self:isUnique(n)
+	if unique then
+		love.graphics.setColor(255, 255, 255, 255)
+	else
+		love.graphics.setColor(140, 140, 140, 255)
+	end
+	if not locked then
+		love.graphics.draw(sprite, quad[self.shape].normal, x*scale, y*scale, 0, scale, scale)
+	else
+		love.graphics.draw(sprite, quad[self.shape].active, x*scale, y*scale, 0, scale, scale)
+	end
+	love.graphics.draw(icon, iconq, (x+2)*scale, (y+3)*scale, 0, scale, scale)
+	if self.focused then
+		local dy = (h-6)/2
+		if not locked then
+			love.graphics.draw(sprite, quad.arrow_l, (x+0-2-math.floor(self.delay))* scale, (y+dy)*scale, 0, scale, scale)
+			love.graphics.draw(sprite, quad.arrow_r, (x+w-4+math.floor(self.delay))*scale, (y+dy)*scale, 0, scale, scale)
+		else
+			love.graphics.draw(sprite, quad.arrow_r, (x+0-2-math.floor(self.delay))* scale, (y+dy)*scale, 0, scale, scale)
+			love.graphics.draw(sprite, quad.arrow_l, (x+w-4+math.floor(self.delay))*scale, (y+dy)*scale, 0, scale, scale)
+		end
+	end
+	if (self:getSelection(n) ~= 1 or self.first) then
+		love.graphics.setFont(Font)
+		love.graphics.setColor(255, 255, 255, 255)
+		love.graphics.printf(string.upper(name), (x-w)*scale, (y+h+1)*scale, w*3, "center", 0, scale, scale)
+	end
+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)
+	local x,y = self:getPosition()
+	local margin = self:getMargin()
+	local width = self:getSize()
+	x = x - #self.selections*0.5*(margin+margin+width)
+	for n=1,#self.selections do
+		self:drawBlock(n, x+(margin+width)*(n-1)+margin*n, y, scale)
+	end
+end
+function Selector:update (dt)
+	self.delay = self.delay + dt
+	if self.delay > Selector.delay then -- Selector.delay is initial
+		self.delay = self.delay - Selector.delay
+	end
+end
+
+-- Controller callbacks
+-- TODO: Add action to perform when key is pressed and selector is locked in e.g. to move into character selection from map selection.
+function Selector:controlpressed (set, action, key)
+	if set and self.focused then
+		local n = self:checkNumber(set)
+		local locked = self:isLocked(n)
+		if action == "left" and not locked then self:previous(n) end
+		if action == "right" and not locked then self:next(n) end
+		if action == "attack" then
+			local name = self:getListValue(self:getSelection(n))
+			if name == "random" then
+				self:setSelection(n, self:rollRandom({1,2})) -- avoid empty naut
+				self.locks[n] = true
+			else
+				-- If not empty or if first is allowed. Additionaly must be unique selection.
+				if (self:getSelection(n) ~= 1 or self.first) and self:isUnique(n) then
+					self.locks[n] = true
+				end
+			end
+		end
+		if action == "jump" then
+			if locked then
+				self.locks[n] = false
+			end
+		end
+	end
+end
+
+return Selector