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local fonts = require("fonts")
local Textbox = {}
Textbox.__index = Textbox
function Textbox:new()
local self = setmetatable({}, Textbox)
self.active = false
self.text = ""
self.visibleText = ""
self.mode = "show"
self.x = 0
self.y = 0
self.align = "center"
self.maxLines = nil
self.maxChars = nil
self.charIndex = 0
self.timer = 0
self.speed = 0.03
self.width = 0
self.height = 0
self.lines = {}
return self
end
function Textbox:show(text, pos, mode, opts)
opts = opts or {}
self.text = text
self.mode = mode or "show"
self.x = pos[1]
self.y = pos[2]
self.align = pos[3] or "center"
self.maxLines = opts.maxLines
self.maxChars = opts.maxChars
self.fontSize = opts.fontSize
self.centeredText = opts.centeredText
self.wrapToFit = opts.wrapToFit
self.life = opts.life
self.lifeTimer = 0
self.charIndex = 0
self.visibleText = ""
self.timer = 0
self.active = true
self:layout()
end
function Textbox:layout()
self.maxLines = self.maxLines or 4
self.maxChars = self.maxChars or 40
self.font = self.fontSize and fonts.get(self.fontSize) or love.graphics.getFont()
local padding = 10
if self.wrapToFit then
local tempWidth = self.font:getWidth(string.rep("A", self.maxChars))
local _, lines = self.font:getWrap(self.text, tempWidth)
self.lines = lines or {}
self.lines = self.lines or {}
local maxW = 0
for _, line in ipairs(self.lines) do
local w = self.font:getWidth(line)
if w > maxW then maxW = w end
end
local lineCount = math.max(1, #self.lines)
self.width = maxW + padding * 2
self.height = self.font:getHeight() * lineCount + padding * 2
else
self.width = self.font:getWidth(string.rep("A", self.maxChars)) + padding * 2
self.height = self.font:getHeight() * self.maxLines + padding * 2
end
end
function Textbox:wrap(text)
local lines = {}
local line = ""
for word in text:gmatch("%S+") do
if line == "" then
line = word
elseif #line + #word + 1 <= self.maxChars then
line = line .. " " .. word
else
table.insert(lines, line)
line = word
end
end
if line ~= "" then
table.insert(lines, line)
end
return lines
end
function Textbox:update(dt)
if not self.active then return end
if self.life then
self.lifeTimer = self.lifeTimer + dt
if self.lifeTimer >= self.life then
self:hide()
return
end
end
if self.mode == "write" then
self.timer = self.timer + dt
if self.timer > self.speed then
self.timer = 0
self.charIndex = self.charIndex + 1
self.visibleText = self.text:sub(1, self.charIndex)
end
else
self.visibleText = self.text
end
end
function Textbox:draw()
if not self.active then return end
local x = self.x
local y = self.y
if self.align == "center" then
x = x - self.width / 2
y = y - self.height / 2
elseif self.align == "right" then
x = x - self.width
end
local padding = 10
local textAlign = self.centeredText and "center" or "left"
local textX = x + padding
local textY = y + padding
if self.centeredText then
local _, wrappedLines = self.font:getWrap(self.visibleText, self.width - padding * 2)
local numLines = wrappedLines and #wrappedLines or 1
local textHeight = self.font:getHeight() * numLines
local vertExtra = math.max(0, self.height - padding * 2 - textHeight)
textY = y + padding + vertExtra / 2
end
local prevFont = love.graphics.getFont()
love.graphics.setFont(self.font)
love.graphics.setColor(0, 0, 0, 0.8)
love.graphics.rectangle("fill", x, y, self.width, self.height)
love.graphics.setColor(1, 1, 1, 1)
love.graphics.printf(self.visibleText, textX, textY, self.width - padding * 2, textAlign)
love.graphics.setFont(prevFont)
end
function Textbox:hide()
self.active = false
end
return Textbox
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