393 lines
14 KiB
Lua
393 lines
14 KiB
Lua
--
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-- talkies
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--
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-- Copyright (c) 2017 twentytwoo, tanema
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--
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-- This library is free software; you can redistribute it and/or modify it
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-- under the terms of the MIT license. See LICENSE for details.
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--
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local utf8 = require("utf8")
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local function playSound(sound, pitch)
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if type(sound) == "userdata" then
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sound:setPitch(pitch or 1)
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sound:play()
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end
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end
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local function parseSpeed(speed)
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if speed == "fast" then return 0.01
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elseif speed == "medium" then return 0.04
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elseif speed == "slow" then return 0.08
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else
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assert(tonumber(speed), "setSpeed() - Expected number, got " .. tostring(speed))
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return speed
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end
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end
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local Fifo = {}
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function Fifo.new () return setmetatable({first=1,last=0},{__index=Fifo}) end
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function Fifo:peek() return self[self.first] end
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function Fifo:len() return (self.last+1)-self.first end
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function Fifo:push(value)
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self.last = self.last + 1
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self[self.last] = value
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end
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function Fifo:pop()
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if self.first > self.last then return end
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local value = self[self.first]
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self[self.first] = nil
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self.first = self.first + 1
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return value
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end
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local Typer = {}
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function Typer.new(msg, speed)
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local timeToType = parseSpeed(speed)
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return setmetatable({
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msg = msg, complete = false, paused = false,
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timer = timeToType, max = timeToType, position = 0, visible = "",
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},{__index=Typer})
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end
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function Typer:resume()
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if not self.paused then return end
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self.msg = self.msg:gsub("%-%-", " ", 1)
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self.paused = false
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end
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function Typer:finish()
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if self.complete then return end
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self.msg = self.msg:gsub("%-%-", " ")
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self.visible = self.msg
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self.complete = true
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end
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function Typer:update(dt)
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local typed = false
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if self.complete then return typed end
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if not self.paused then
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self.timer = self.timer - dt
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while not self.paused and not self.complete and self.timer <= 0 do
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typed = string.sub(self.msg, self.position, self.position) ~= " "
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self.position = self.position + 1
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self.timer = self.timer + self.max
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self.visible = string.sub(self.msg, 0, utf8.offset(self.msg, self.position) - 1)
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self.complete = (self.visible == self.msg)
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self.paused = string.sub(self.msg, string.len(self.visible)+1, string.len(self.visible)+2) == "--"
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end
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end
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return typed
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end
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local Talkies = {
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_VERSION = '0.0.1',
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_URL = 'https://github.com/tanema/talkies',
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_DESCRIPTION = 'A simple messagebox system for LÖVE',
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-- Theme
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indicatorCharacter = ">>",
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optionCharacter = ">",
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padding = 4,
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talkSound = nil,
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optionSwitchSound = nil,
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optionOnSelectSound = nil,
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inlineOptions = true,
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titleColor = {1, 1, 1},
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titleBackgroundColor = nil,
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titleBorderColor = nil,
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messageColor = {1, 1, 1},
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messageBackgroundColor = {0, 0, 0, 0.8},
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messageBorderColor = nil,
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rounding = 0,
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thickness = 0,
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textSpeed = 1 / 60,
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font = love.graphics.newFont(),
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typedNotTalked = true,
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pitchValues = {0.7, 0.8, 1.0, 1.2, 1.3},
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indicatorTimer = 0,
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indicatorDelay = 3,
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showIndicator = false,
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dialogs = Fifo.new(),
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}
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function Talkies.say(title, messages, config)
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config = config or {}
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if type(messages) ~= "table" then
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messages = { messages }
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end
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msgFifo = Fifo.new()
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for i=1, #messages do
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msgFifo:push(Typer.new(messages[i], config.textSpeed or Talkies.textSpeed))
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end
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local font = config.font or Talkies.font
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-- Insert the Talkies.new into its own instance (table)
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local newDialog = {
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title = title or "",
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messages = msgFifo,
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image = config.image,
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options = config.options,
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onstart = config.onstart or function(dialog) end,
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onmessage = config.onmessage or function(dialog, left) end,
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oncomplete = config.oncomplete or function(dialog) end,
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-- theme
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indicatorCharacter = config.indicatorCharacter or Talkies.indicatorCharacter,
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optionCharacter = config.optionCharacter or Talkies.optionCharacter,
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padding = config.padding or Talkies.padding,
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rounding = config.rounding or Talkies.rounding,
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thickness = config.thickness or Talkies.thickness,
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talkSound = config.talkSound or Talkies.talkSound,
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optionSwitchSound = config.optionSwitchSound or Talkies.optionSwitchSound,
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optionOnSelectSound = config.optionOnSelectSound or Talkies.optionOnSelectSound,
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inlineOptions = config.inlineOptions or Talkies.inlineOptions,
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font = font,
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fontHeight = font:getHeight(" "),
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typedNotTalked = config.typedNotTalked == nil and Talkies.typedNotTalked or config.typedNotTalked,
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pitchValues = config.pitchValues or Talkies.pitchValues,
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optionIndex = 1,
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showOptions = function(dialog) return dialog.messages:len() == 1 and type(dialog.options) == "table" end,
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isShown = function(dialog) return Talkies.dialogs:peek() == dialog end
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}
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newDialog.messageBackgroundColor = config.messageBackgroundColor or Talkies.messageBackgroundColor
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newDialog.titleBackgroundColor = config.titleBackgroundColor or Talkies.titleBackgroundColor or newDialog.messageBackgroundColor
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newDialog.messageColor = config.messageColor or Talkies.messageColor
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newDialog.titleColor = config.titleColor or Talkies.titleColor or newDialog.messageColor
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newDialog.messageBorderColor = config.messageBorderColor or Talkies.messageBorderColor or newDialog.messageBackgroundColor
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newDialog.titleBorderColor = config.titleBorderColor or Talkies.titleBorderColor or newDialog.messageBorderColor
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Talkies.dialogs:push(newDialog)
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if Talkies.dialogs:len() == 1 then
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Talkies.dialogs:peek():onstart()
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end
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return newDialog
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end
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function Talkies.update(dt)
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local currentDialog = Talkies.dialogs:peek()
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if currentDialog == nil then return end
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local currentMessage = currentDialog.messages:peek()
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if currentMessage.paused or currentMessage.complete then
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Talkies.indicatorTimer = Talkies.indicatorTimer + (10 * dt)
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if Talkies.indicatorTimer > Talkies.indicatorDelay then
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Talkies.showIndicator = not Talkies.showIndicator
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Talkies.indicatorTimer = 0
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end
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else
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Talkies.showIndicator = false
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end
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if currentMessage:update(dt) then
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if currentDialog.typedNotTalked then
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playSound(currentDialog.talkSound)
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elseif not currentDialog.talkSound:isPlaying() then
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local pitch = currentDialog.pitchValues[math.random(#currentDialog.pitchValues)]
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playSound(currentDialog.talkSound, pitch)
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end
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end
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end
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function Talkies.advanceMsg()
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local currentDialog = Talkies.dialogs:peek()
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if currentDialog == nil then return end
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currentDialog:onmessage(currentDialog.messages:len() - 1)
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if currentDialog.messages:len() == 1 then
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Talkies.dialogs:pop()
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currentDialog:oncomplete()
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if Talkies.dialogs:len() == 0 then
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Talkies.clearMessages()
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else
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Talkies.dialogs:peek():onstart()
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end
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end
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currentDialog.messages:pop()
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end
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function Talkies.isOpen()
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return Talkies.dialogs:peek() ~= nil
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end
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function Talkies.draw()
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local currentDialog = Talkies.dialogs:peek()
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if currentDialog == nil then return end
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local currentMessage = currentDialog.messages:peek()
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--love.graphics.push()
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love.graphics.setDefaultFilter("nearest", "nearest")
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local function getDimensions()
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return core.screen:getDimensions()
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end
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local windowWidth, windowHeight = getDimensions()
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love.graphics.setLineWidth(currentDialog.thickness)
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-- message box
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local boxW = windowWidth---(2*currentDialog.padding)
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local boxH = (windowHeight/3)--(2*currentDialog.padding)
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local boxX = 0--currentDialog.padding
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local boxY = windowHeight-(boxH+currentDialog.padding)
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-- image
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local imgX, imgY, imgW, imgScale = boxX+currentDialog.padding, boxY+currentDialog.padding, 0, 0
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if currentDialog.image ~= nil then
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imgScale = (boxH - (currentDialog.padding * 2)) / currentDialog.image:getHeight()
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imgW = currentDialog.image:getWidth() * imgScale
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end
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-- title box
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local textX, textY = imgX + imgW + currentDialog.padding, boxY + 4
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love.graphics.setFont(currentDialog.font)
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if currentDialog.title ~= "" then
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local titleBoxW = currentDialog.font:getWidth(currentDialog.title)+(4*currentDialog.padding)
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local titleBoxH = currentDialog.fontHeight+currentDialog.padding
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local titleBoxY = boxY-titleBoxH-(currentDialog.padding/2)
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local titleBoxX = currentDialog.padding * 2
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local titleX, titleY = titleBoxX + currentDialog.padding*2, titleBoxY + 2
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-- Message title
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love.graphics.setColor(currentDialog.titleBackgroundColor)
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love.graphics.rectangle("fill", titleBoxX, titleBoxY, titleBoxW, titleBoxH, titleBoxH/2, titleBoxH/2)
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if currentDialog.thickness > 0 then
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love.graphics.setColor(currentDialog.titleBorderColor)
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love.graphics.rectangle("line", boxX, titleBoxY, titleBoxW, titleBoxH, currentDialog.rounding, currentDialog.rounding)
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end
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love.graphics.setColor(currentDialog.titleColor)
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love.graphics.print(currentDialog.title, titleX, titleY)
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end
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-- Main message box
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love.graphics.setColor(currentDialog.messageBackgroundColor)
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love.graphics.rectangle("fill", boxX, boxY, boxW, boxH, currentDialog.rounding, currentDialog.rounding)
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if currentDialog.thickness > 0 then
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love.graphics.setColor(currentDialog.messageBorderColor)
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love.graphics.rectangle("line", boxX, boxY, boxW, boxH, currentDialog.rounding, currentDialog.rounding)
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end
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-- Message avatar
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if currentDialog.image ~= nil then
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love.graphics.push()
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love.graphics.setColor(1, 1, 1)
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love.graphics.draw(currentDialog.image, imgX, imgY, 0, imgScale, imgScale)
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love.graphics.pop()
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end
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-- Message text
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love.graphics.setColor(currentDialog.messageColor)
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local textW = boxW - imgW - (4 * currentDialog.padding)
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local _, modmsg = currentDialog.font:getWrap(currentMessage.msg, textW)
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local catmsg = table.concat(modmsg, "\n")
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local display = string.sub(catmsg, 1, #currentMessage.visible + #modmsg - 1)
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love.graphics.print(display, textX, textY)
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-- Message options (when shown)
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if currentDialog:showOptions() and currentMessage.complete then
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if currentDialog.inlineOptions then
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local optionsY = textY+currentDialog.font:getHeight(currentMessage.visible)-(currentDialog.padding/1.6)
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local optionLeftPad = currentDialog.font:getWidth(currentDialog.optionCharacter.." ")
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for k, option in pairs(currentDialog.options) do
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love.graphics.print(option[1], optionLeftPad+textX+currentDialog.padding, optionsY+((k-1)*currentDialog.fontHeight))
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end
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love.graphics.print(
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currentDialog.optionCharacter.." ",
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textX+currentDialog.padding,
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optionsY+((currentDialog.optionIndex-1)*currentDialog.fontHeight))
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else
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local optionWidth = 0
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local optionText = ""
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for k, option in pairs(currentDialog.options) do
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local newText = (currentDialog.optionIndex == k and currentDialog.optionCharacter or " ") .. " " .. option[1]
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optionWidth = math.max(optionWidth, currentDialog.font:getWidth(newText) )
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optionText = optionText .. newText .. "\n"
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end
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local optionsH = (currentDialog.font:getHeight() * #currentDialog.options)
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local optionsX = math.floor((windowWidth / 2) - (optionWidth / 2))
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local optionsY = math.floor((windowHeight / 3) - (optionsH / 2))
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love.graphics.setColor(currentDialog.messageBackgroundColor)
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love.graphics.rectangle("fill", optionsX - currentDialog.padding, optionsY - currentDialog.padding, optionWidth + currentDialog.padding * 2, optionsH + currentDialog.padding * 2, currentDialog.rounding, currentDialog.rounding)
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if currentDialog.thickness > 0 then
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love.graphics.setColor(currentDialog.messageBorderColor)
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love.graphics.rectangle("line", optionsX - currentDialog.padding, optionsY - currentDialog.padding, optionWidth + currentDialog.padding * 2, optionsH + currentDialog.padding * 2, currentDialog.rounding, currentDialog.rounding)
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end
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love.graphics.setColor(currentDialog.messageColor)
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love.graphics.print(optionText, optionsX, optionsY)
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end
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end
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-- Next message/continue indicator
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if Talkies.showIndicator then
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love.graphics.print(currentDialog.indicatorCharacter, boxX+boxW-(4*currentDialog.padding), boxY+boxH-currentDialog.fontHeight)
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end
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--love.graphics.pop()
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end
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function Talkies.prevOption()
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local currentDialog = Talkies.dialogs:peek()
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if currentDialog == nil or not currentDialog:showOptions() then return end
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currentDialog.optionIndex = currentDialog.optionIndex - 1
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if currentDialog.optionIndex < 1 then currentDialog.optionIndex = #currentDialog.options end
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playSound(currentDialog.optionSwitchSound)
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end
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function Talkies.nextOption()
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local currentDialog = Talkies.dialogs:peek()
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if currentDialog == nil or not currentDialog:showOptions() then return end
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currentDialog.optionIndex = currentDialog.optionIndex + 1
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if currentDialog.optionIndex > #currentDialog.options then currentDialog.optionIndex = 1 end
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playSound(currentDialog.optionSwitchSound)
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end
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function Talkies.onAction()
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local currentDialog = Talkies.dialogs:peek()
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if currentDialog == nil then return end
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local currentMessage = currentDialog.messages:peek()
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if currentMessage.paused then currentMessage:resume()
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elseif not currentMessage.complete then currentMessage:finish()
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else
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if currentDialog:showOptions() then
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currentDialog.options[currentDialog.optionIndex][2]() -- Execute the selected function
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playSound(currentDialog.optionOnSelectSound)
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end
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Talkies.advanceMsg()
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end
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end
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function Talkies.clearMessages()
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Talkies.dialogs = Fifo.new()
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end
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return Talkies
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