From 2e47d87abf979b998008b962b993bf62771a8b73 Mon Sep 17 00:00:00 2001
From: Kazhnuz <kazhnuz@kobold.cafe>
Date: Sun, 21 Mar 2021 22:00:54 +0100
Subject: [PATCH] feat: add dialog boxes powered by talkies

---
 sonic-radiance.love/core/libs/talkies.lua     | 390 ++++++++++++++++++
 sonic-radiance.love/game/events/arguments.lua |   2 +-
 .../game/events/event/dialogbox.lua           |  32 ++
 .../game/events/event/init.lua                |   3 +-
 4 files changed, 425 insertions(+), 2 deletions(-)
 create mode 100644 sonic-radiance.love/core/libs/talkies.lua
 create mode 100644 sonic-radiance.love/game/events/event/dialogbox.lua

diff --git a/sonic-radiance.love/core/libs/talkies.lua b/sonic-radiance.love/core/libs/talkies.lua
new file mode 100644
index 0000000..e6d91ed
--- /dev/null
+++ b/sonic-radiance.love/core/libs/talkies.lua
@@ -0,0 +1,390 @@
+--
+-- talkies
+--
+-- Copyright (c) 2017 twentytwoo, tanema
+--
+-- This library is free software; you can redistribute it and/or modify it
+-- under the terms of the MIT license. See LICENSE for details.
+--
+local utf8 = require("utf8")
+
+local function playSound(sound, pitch)
+  if type(sound) == "userdata" then
+    sound:setPitch(pitch or 1)
+    sound:play()
+  end
+end
+
+local function parseSpeed(speed)
+  if speed == "fast" then return 0.01
+  elseif speed == "medium" then return 0.04
+  elseif speed == "slow" then return 0.08
+  else
+    assert(tonumber(speed), "setSpeed() - Expected number, got " .. tostring(speed))
+    return speed
+  end
+end
+
+local Fifo = {}
+function Fifo.new () return setmetatable({first=1,last=0},{__index=Fifo}) end
+function Fifo:peek() return self[self.first] end
+function Fifo:len() return (self.last+1)-self.first end
+
+function Fifo:push(value)
+  self.last = self.last + 1
+  self[self.last] = value
+end
+
+function Fifo:pop()
+  if self.first > self.last then return end
+  local value = self[self.first]
+  self[self.first] = nil
+  self.first = self.first + 1
+  return value
+end
+
+local Typer = {}
+function Typer.new(msg, speed)
+  local timeToType = parseSpeed(speed)
+  return setmetatable({
+    msg = msg, complete = false, paused = false,
+    timer = timeToType, max = timeToType, position = 0, visible = "",
+  },{__index=Typer})
+end
+
+function Typer:resume()
+  if not self.paused then return end
+  self.msg = self.msg:gsub("%-%-", " ", 1)
+  self.paused = false
+end
+
+function Typer:finish()
+  if self.complete then return end
+  self.msg = self.msg:gsub("%-%-", " ")
+  self.visible = self.msg
+  self.complete = true
+end
+
+function Typer:update(dt)
+  local typed = false
+  if self.complete then return typed end
+  if not self.paused then
+    self.timer = self.timer - dt
+    while not self.paused and not self.complete and self.timer <= 0 do
+      typed = string.sub(self.msg, self.position, self.position) ~= " "
+      self.position = self.position + 1
+      
+      self.timer = self.timer + self.max
+      self.visible = string.sub(self.msg, 0, utf8.offset(self.msg, self.position) - 1)
+      self.complete = (self.visible == self.msg)
+      self.paused = string.sub(self.msg, string.len(self.visible)+1, string.len(self.visible)+2) == "--"
+    end
+  end
+  
+  return typed
+end
+
+local Talkies = {
+  _VERSION     = '0.0.1',
+  _URL         = 'https://github.com/tanema/talkies',
+  _DESCRIPTION = 'A simple messagebox system for LÖVE',
+
+  -- Theme
+  indicatorCharacter      = ">>",
+  optionCharacter         = ">",
+  padding                 = 4,
+  talkSound               = nil,
+  optionSwitchSound       = nil,
+  inlineOptions           = true,
+  
+  titleColor              = {1, 1, 1},
+  titleBackgroundColor    = nil,
+  titleBorderColor        = nil,
+  messageColor            = {1, 1, 1},
+  messageBackgroundColor  = {0, 0, 0, 0.5},
+  messageBorderColor      = nil,
+  
+  rounding                = 0,
+  thickness               = 0,
+  
+  textSpeed               = 1 / 60,
+  font                    = love.graphics.newFont(),
+
+  typedNotTalked          = true,
+  pitchValues             = {0.7, 0.8, 1.0, 1.2, 1.3},
+
+  indicatorTimer          = 0,
+  indicatorDelay          = 3,
+  showIndicator           = false,
+  dialogs                 = Fifo.new(),
+}
+
+function Talkies.say(title, messages, config)
+  config = config or {}
+  if type(messages) ~= "table" then
+    messages = { messages }
+  end
+
+  msgFifo = Fifo.new()
+  
+  for i=1, #messages do
+    msgFifo:push(Typer.new(messages[i], config.textSpeed or Talkies.textSpeed))
+  end
+
+  local font = config.font or Talkies.font
+
+  -- Insert the Talkies.new into its own instance (table)
+  local newDialog = {
+    title         = title or "",
+    messages      = msgFifo,
+    image         = config.image,
+    options       = config.options,
+    onstart       = config.onstart or function(dialog) end,
+    onmessage     = config.onmessage or function(dialog, left) end,
+    oncomplete    = config.oncomplete or function(dialog) end,
+
+    -- theme
+    indicatorCharacter     = config.indicatorCharacter or Talkies.indicatorCharacter,
+    optionCharacter        = config.optionCharacter or Talkies.optionCharacter,
+    padding                = config.padding or Talkies.padding,
+    rounding               = config.rounding or Talkies.rounding,
+    thickness              = config.thickness or Talkies.thickness,
+    talkSound              = config.talkSound or Talkies.talkSound,
+    optionSwitchSound      = config.optionSwitchSound or Talkies.optionSwitchSound,
+    inlineOptions          = config.inlineOptions or Talkies.inlineOptions,
+    font                   = font,
+    fontHeight             = font:getHeight(" "),
+    typedNotTalked         = config.typedNotTalked == nil and Talkies.typedNotTalked or config.typedNotTalked,
+    pitchValues            = config.pitchValues or Talkies.pitchValues,
+
+    optionIndex   = 1,
+
+    showOptions = function(dialog) return dialog.messages:len() == 1 and type(dialog.options) == "table" end,
+    isShown     = function(dialog) return Talkies.dialogs:peek() == dialog end
+  }
+  
+  newDialog.messageBackgroundColor = config.messageBackgroundColor or Talkies.messageBackgroundColor
+  newDialog.titleBackgroundColor = config.titleBackgroundColor or Talkies.titleBackgroundColor or newDialog.messageBackgroundColor
+  
+  newDialog.messageColor = config.messageColor or Talkies.messageColor
+  newDialog.titleColor = config.titleColor or Talkies.titleColor or newDialog.messageColor
+  
+  newDialog.messageBorderColor = config.messageBorderColor or Talkies.messageBorderColor or newDialog.messageBackgroundColor
+  newDialog.titleBorderColor = config.titleBorderColor or Talkies.titleBorderColor or newDialog.messageBorderColor
+  
+  Talkies.dialogs:push(newDialog)
+  if Talkies.dialogs:len() == 1 then
+    Talkies.dialogs:peek():onstart()
+  end
+
+  return newDialog
+end
+
+function Talkies.update(dt)
+  local currentDialog = Talkies.dialogs:peek()
+  if currentDialog == nil then return end
+  local currentMessage = currentDialog.messages:peek()
+
+  if currentMessage.paused or currentMessage.complete then
+    Talkies.indicatorTimer = Talkies.indicatorTimer + (10 * dt)
+    if Talkies.indicatorTimer > Talkies.indicatorDelay then
+      Talkies.showIndicator = not Talkies.showIndicator
+      Talkies.indicatorTimer = 0
+    end
+  else
+    Talkies.showIndicator = false
+  end
+
+  if currentMessage:update(dt) then
+    if currentDialog.typedNotTalked then
+      playSound(currentDialog.talkSound)
+    elseif not currentDialog.talkSound:isPlaying() then
+      local pitch = currentDialog.pitchValues[math.random(#currentDialog.pitchValues)]
+      playSound(currentDialog.talkSound, pitch)
+    end
+  end
+end
+
+function Talkies.advanceMsg()
+  local currentDialog = Talkies.dialogs:peek()
+  if currentDialog == nil then return end
+  currentDialog:onmessage(currentDialog.messages:len() - 1)
+  if currentDialog.messages:len() == 1 then
+    Talkies.dialogs:pop()
+    currentDialog:oncomplete()
+    if Talkies.dialogs:len() == 0 then
+      Talkies.clearMessages()
+    else
+      Talkies.dialogs:peek():onstart()
+    end
+  end
+  currentDialog.messages:pop()
+end
+
+function Talkies.isOpen()
+  return Talkies.dialogs:peek() ~= nil
+end
+
+function Talkies.draw()
+  local currentDialog = Talkies.dialogs:peek()
+  if currentDialog == nil then return end
+
+  local currentMessage = currentDialog.messages:peek()
+
+  --love.graphics.push()
+  love.graphics.setDefaultFilter("nearest", "nearest")
+
+  local function getDimensions()
+    return core.screen:getDimensions()
+  end
+
+  local windowWidth, windowHeight = getDimensions()
+  
+  love.graphics.setLineWidth(currentDialog.thickness)
+
+  -- message box
+  local boxW = windowWidth---(2*currentDialog.padding)
+  local boxH = (windowHeight/3)--(2*currentDialog.padding)
+  local boxX = 0--currentDialog.padding
+  local boxY = windowHeight-(boxH+currentDialog.padding)
+
+  -- image
+  local imgX, imgY, imgW, imgScale = boxX+currentDialog.padding, boxY+currentDialog.padding, 0, 0
+  if currentDialog.image ~= nil then
+    imgScale = (boxH - (currentDialog.padding * 2)) / currentDialog.image:getHeight()
+    imgW = currentDialog.image:getWidth() * imgScale
+  end
+
+  -- title box
+  local textX, textY = imgX + imgW + currentDialog.padding, boxY + 4
+
+  love.graphics.setFont(currentDialog.font)
+
+  if currentDialog.title ~= "" then
+    local titleBoxW = currentDialog.font:getWidth(currentDialog.title)+(4*currentDialog.padding)
+    local titleBoxH = currentDialog.fontHeight+currentDialog.padding
+    local titleBoxY = boxY-titleBoxH-(currentDialog.padding/2)
+    local titleBoxX = currentDialog.padding * 2
+    local titleX, titleY = titleBoxX + currentDialog.padding*2, titleBoxY + 2
+    
+    -- Message title
+    love.graphics.setColor(currentDialog.titleBackgroundColor)
+    love.graphics.rectangle("fill", titleBoxX, titleBoxY, titleBoxW, titleBoxH, titleBoxH/2, titleBoxH/2)
+    if currentDialog.thickness > 0 then
+      love.graphics.setColor(currentDialog.titleBorderColor)
+      love.graphics.rectangle("line", boxX, titleBoxY, titleBoxW, titleBoxH, currentDialog.rounding, currentDialog.rounding)
+    end
+    love.graphics.setColor(currentDialog.titleColor)
+    love.graphics.print(currentDialog.title, titleX, titleY)
+  end
+
+  -- Main message box
+  love.graphics.setColor(currentDialog.messageBackgroundColor)
+  love.graphics.rectangle("fill", boxX, boxY, boxW, boxH, currentDialog.rounding, currentDialog.rounding)
+  if currentDialog.thickness > 0 then
+    love.graphics.setColor(currentDialog.messageBorderColor)
+    love.graphics.rectangle("line", boxX, boxY, boxW, boxH, currentDialog.rounding, currentDialog.rounding)
+  end
+
+  -- Message avatar
+  if currentDialog.image ~= nil then
+    love.graphics.push()
+      love.graphics.setColor(1, 1, 1)
+      love.graphics.draw(currentDialog.image, imgX, imgY, 0, imgScale, imgScale)
+    love.graphics.pop()
+  end
+
+  -- Message text
+  love.graphics.setColor(currentDialog.messageColor)
+  local textW = boxW - imgW - (4 * currentDialog.padding)
+  local _, modmsg = currentDialog.font:getWrap(currentMessage.msg, textW)
+  local catmsg = table.concat(modmsg, "\n")
+  
+  local display = string.sub(catmsg, 1, #currentMessage.visible + #modmsg - 1)
+  
+  love.graphics.print(display, textX, textY)
+
+  -- Message options (when shown)
+  if currentDialog:showOptions() and currentMessage.complete then
+    if currentDialog.inlineOptions then
+      local optionsY = textY+currentDialog.font:getHeight(currentMessage.visible)-(currentDialog.padding/1.6)
+      local optionLeftPad = currentDialog.font:getWidth(currentDialog.optionCharacter.." ")
+      for k, option in pairs(currentDialog.options) do
+        love.graphics.print(option[1], optionLeftPad+textX+currentDialog.padding, optionsY+((k-1)*currentDialog.fontHeight))
+      end
+      love.graphics.print(
+        currentDialog.optionCharacter.." ",
+        textX+currentDialog.padding,
+        optionsY+((currentDialog.optionIndex-1)*currentDialog.fontHeight))
+    else
+      local optionWidth = 0
+      
+      local optionText = ""
+      for k, option in pairs(currentDialog.options) do
+        local newText = (currentDialog.optionIndex == k and currentDialog.optionCharacter or " ") .. " " .. option[1]
+        optionWidth = math.max(optionWidth, currentDialog.font:getWidth(newText) )
+        optionText = optionText .. newText .. "\n"
+      end
+      
+      local optionsH = (currentDialog.font:getHeight() * #currentDialog.options)
+      local optionsX = math.floor((windowWidth / 2) - (optionWidth / 2))
+      local optionsY = math.floor((windowHeight / 3) - (optionsH / 2))
+      
+      love.graphics.setColor(currentDialog.messageBackgroundColor)
+      love.graphics.rectangle("fill", optionsX - currentDialog.padding, optionsY - currentDialog.padding, optionWidth + currentDialog.padding * 2, optionsH + currentDialog.padding * 2, currentDialog.rounding, currentDialog.rounding)
+      
+      if currentDialog.thickness > 0 then
+        love.graphics.setColor(currentDialog.messageBorderColor)
+        love.graphics.rectangle("line", optionsX - currentDialog.padding, optionsY - currentDialog.padding, optionWidth + currentDialog.padding * 2, optionsH + currentDialog.padding * 2, currentDialog.rounding, currentDialog.rounding)
+      end
+      
+      love.graphics.setColor(currentDialog.messageColor)
+      love.graphics.print(optionText, optionsX, optionsY)
+    end
+  end
+
+  -- Next message/continue indicator
+  if Talkies.showIndicator then
+    love.graphics.print(currentDialog.indicatorCharacter, boxX+boxW-(4*currentDialog.padding), boxY+boxH-currentDialog.fontHeight)
+  end
+
+  --love.graphics.pop()
+end
+
+function Talkies.prevOption()
+  local currentDialog = Talkies.dialogs:peek()
+  if currentDialog == nil or not currentDialog:showOptions() then return end
+  currentDialog.optionIndex = currentDialog.optionIndex - 1
+  if currentDialog.optionIndex < 1 then currentDialog.optionIndex = #currentDialog.options end
+  playSound(currentDialog.optionSwitchSound)
+end
+
+function Talkies.nextOption()
+  local currentDialog = Talkies.dialogs:peek()
+  if currentDialog == nil or not currentDialog:showOptions() then return end
+  currentDialog.optionIndex = currentDialog.optionIndex + 1
+  if currentDialog.optionIndex > #currentDialog.options then currentDialog.optionIndex = 1 end
+  playSound(currentDialog.optionSwitchSound)
+end
+
+function Talkies.onAction()
+  local currentDialog = Talkies.dialogs:peek()
+  if currentDialog == nil then return end
+  local currentMessage = currentDialog.messages:peek()
+
+  if currentMessage.paused then currentMessage:resume()
+  elseif not currentMessage.complete then currentMessage:finish()
+  else
+    if currentDialog:showOptions() then
+      currentDialog.options[currentDialog.optionIndex][2]() -- Execute the selected function
+      playSound(currentDialog.optionSwitchSound)
+    end
+    Talkies.advanceMsg()
+  end
+end
+
+function Talkies.clearMessages()
+  Talkies.dialogs = Fifo.new()
+end
+
+return Talkies
diff --git a/sonic-radiance.love/game/events/arguments.lua b/sonic-radiance.love/game/events/arguments.lua
index ab4ded1..453672c 100644
--- a/sonic-radiance.love/game/events/arguments.lua
+++ b/sonic-radiance.love/game/events/arguments.lua
@@ -1,7 +1,7 @@
 return {
     ["wait"] = {"duration"},
     ["simpleMessage"] = {"message"},
-    ["dialogBox"] = {"message"},
+    ["dialogBox"] = {"message", "title", "avatar"},
     --[name] = {args...},
 }
 
diff --git a/sonic-radiance.love/game/events/event/dialogbox.lua b/sonic-radiance.love/game/events/event/dialogbox.lua
new file mode 100644
index 0000000..dfcb9a1
--- /dev/null
+++ b/sonic-radiance.love/game/events/event/dialogbox.lua
@@ -0,0 +1,32 @@
+local StepParent = require "game.events.event.parent"
+local DialogBox = StepParent:extend()
+
+local Talkies = require('core.libs.talkies')
+
+function DialogBox:new(controller, args)
+    DialogBox.super.new(self, controller, args)
+    Talkies.font = love.graphics.newFont("assets/gui/fonts/PixelOperator.ttf", 16)
+end
+
+function DialogBox:start()
+    Talkies.say(self.arguments.title, self.arguments.message)
+end
+
+function DialogBox:update(dt)
+    Talkies.update(dt)
+
+    if (not Talkies.isOpen()) then
+        self:finish()
+    end
+    local keys = self.events.scene.sources[1].keys
+    if (keys["up"].isPressed) then Talkies.prevOption()
+    elseif (keys["down"].isPressed) then Talkies.nextOption()
+    elseif (keys["A"].isPressed) then Talkies.onAction()
+    end
+end
+
+function DialogBox:draw()
+    Talkies.draw()
+end
+
+return DialogBox;
diff --git a/sonic-radiance.love/game/events/event/init.lua b/sonic-radiance.love/game/events/event/init.lua
index 44884aa..607095d 100644
--- a/sonic-radiance.love/game/events/event/init.lua
+++ b/sonic-radiance.love/game/events/event/init.lua
@@ -1,4 +1,5 @@
 return {
     ["wait"] = require("game.events.event.wait"),
-    ["simpleMessage"] = require("game.events.event.simpleMessage")
+    ["simpleMessage"] = require("game.events.event.simpleMessage"),
+    ["dialogBox"] = require("game.events.event.dialogbox")
 }
\ No newline at end of file