feat: add a common message queue

Fixes #89

sonic-radiance.love/game/modules/messagequeue/init.lua

@@ -0,0 +1,37 @@
+local MessageQueue = Object:extend()
+local Message = require "game.modules.messagequeue.message"
+local MAX = 3
+
+function MessageQueue:new(scene)
+    self.messages = {}
+    self.permaMessage = nil
+    self.scene = scene
+end
+
+function MessageQueue:addMessage(newMessage)
+    for _, message in ipairs(self.messages) do
+        message:move()
+    end
+    table.insert(self.messages, 1, Message(self.scene, newMessage, false))
+    self.messages[MAX + 1] = nil
+end
+
+function MessageQueue:pinMessage(message)
+    if (self.permaMessage ~= nil and self.permaMessage.text ~= message) then
+        self.permaMessage = Message(self.scene, message, true)
+    end
+end
+
+function MessageQueue:update(dt)
+    for _, message in ipairs(self.messages) do
+        message:update(dt)
+    end
+end
+
+function MessageQueue:draw()
+    for _, message in ipairs(self.messages) do
+        message:draw()
+    end
+end
+
+return MessageQueue

sonic-radiance.love/game/modules/messagequeue/message.lua

@@ -0,0 +1,42 @@
+local Message = Object:extend()
+local TweenManager = require "game.modules.tweenmanager"
+
+local SPACING = 20
+local PLAYER_MESSAGE = 240 - 24
+
+function Message:new(scene, message, isPinned)
+    self.message = message
+    self.scene = scene
+    assert(message ~= nil, "the message must be set")
+    self.isPinned = isPinned or false
+    self.opacity = 0
+    self.y = 0
+
+    self.tweens = TweenManager(self)
+    self.tweens:newTween(0, 0.2, {opacity = 1}, "inOutCubic")
+    self.tweens:newTween(1, 0.2, {opacity = 0}, "inOutCubic")
+end
+
+function Message:move()
+    self.tweens:newTween(0, 0.2, {y = self.y - SPACING}, "inOutCubic")
+end
+
+function Message:update(dt)
+    self.tweens:update(dt)
+end
+
+function Message:draw()
+    local yTransparency = math.max(0, math.min(1, (math.abs(self.y) - 32) / SPACING))
+    local opacity = math.max(0, math.min(1, self.opacity - yTransparency))
+
+    love.graphics.setColor(0, 0, 0, 0.5 * opacity)
+    if (opacity > 0) then
+        love.graphics.rectangle("fill", 0, PLAYER_MESSAGE + self.y, 424, 16)
+        self.scene.assets.fonts["small"]:setColor(1, 1, 1, opacity)
+        self.scene.assets.fonts["small"]:draw(self.message, 424 / 2, PLAYER_MESSAGE - 1 + self.y, -1, "center")
+        self.scene.assets.fonts["small"]:setColor(1, 1, 1, 1)
+    end
+    utils.graphics.resetColor()
+end
+
+return Message

sonic-radiance.love/main.lua

@@ -27,7 +27,7 @@ local Game    = require "game"
 scenes  = require "scenes"
 
 function love.load()
-  core = Core(false)
+  core = Core(true)
   game = Game()
   if (core.debug.active) then
     scenes.debug.menu()

sonic-radiance.love/scenes/battlesystem/gui/hud.lua

@@ -2,6 +2,7 @@ local HUD = Object:extend()
 
 local gui         = require "game.modules.gui"
 local TweenManager = require "game.modules.tweenmanager"
+local MessageQueue = require "game.modules.messagequeue"
 
 local PLAYER_HUD_HIDDEN   = 240+64
 local PLAYER_HUD_VISIBLE  = 240-44
@@ -19,19 +20,19 @@ function HUD:new(turns)
   self.playerHUDPosition = PLAYER_HUD_HIDDEN
   self.battlerCursor = self.turns.turns.current
 
+  self.messages = MessageQueue(self.scene)
+
   self.message = "Test de message"
   self.messageOpacity = 0
 end
 
 function HUD:showMessage(message)
-  self.message = message
+  self.messages:addMessage(message)
-  self.messageOpacity = 1
-  self.tweens:newTween(0, 0.2, {messageOpacity = 1}, 'inOutCubic')
-  self.tweens:newTween(1, 0.2, {messageOpacity = 0}, 'inOutCubic')
 end
 
 function HUD:update(dt)
   self.tweens:update(dt)
+  self.messages:update(dt)
 end
 
 function HUD:movePlayerHUD(beginBattle)
@@ -75,6 +76,7 @@ function HUD:draw()
     self.assets.images["menucursor"]:draw(cursorx, 5, math.rad(90), 1, 1, 4, 16)
   end
 
+  self.messages:draw()
   love.graphics.setColor(0,0,0, 0.5 * self.messageOpacity)
   love.graphics.rectangle("fill", 0, PLAYER_MESSAGE, 424, 16)
   if (self.messageOpacity > 0) then

sonic-radiance.love/scenes/overworld/init.lua

@@ -33,6 +33,7 @@ local gui = require "game.modules.gui"
 local TweenManager = require "game.modules.tweenmanager"
 
 local EventManager = require "game.events"
+local MessageQueue = require "game.modules.messagequeue"
 
 local PLAYER_MESSAGE = 240 - 32
 
@@ -61,6 +62,8 @@ function OverWorld:new(area, playerx, playery)
   self.ringBorder = -16
   self.tweens:newTween(0, 0.3, {ringBorder=16}, "inOutQuad")
   self.timeBorder = -10
+
+  self.messages = MessageQueue(self)
   self.message = "Test de message"
   self.messageOpacity = 0
 
@@ -96,10 +99,7 @@ function OverWorld:endEvent()
 end
 
 function OverWorld:showMessage(message)
-  self.message = message
+  self.messages:addMessage(message)
-  self.messageOpacity = 1
-  self.tweens:newTween(0, 0.2, {messageOpacity = 1}, 'inOutCubic')
-  self.tweens:newTween(1, 0.2, {messageOpacity = 0}, 'inOutCubic')
 end
 
 function OverWorld:registerScreen(screen)
@@ -113,6 +113,7 @@ function OverWorld:update(dt)
   local keys = self:getKeys(1)
   self.tweens:update(dt)
   self.events:update(dt)
+  self.messages:update(dt)
 
   if (self.world.isActive) then
     self.charsetManager:update(dt)
@@ -177,14 +178,7 @@ end
 function OverWorld:draw()
   self.events:draw()
 
-  love.graphics.setColor(0,0,0, 0.5 * self.messageOpacity)
+  self.messages:draw()
-  love.graphics.rectangle("fill", 0, PLAYER_MESSAGE, 424, 16)
-  if (self.messageOpacity > 0) then
-    self.assets.fonts["small"]:setColor(1,1,1, self.messageOpacity)
-    self.assets.fonts["small"]:draw(self.message, 424/2, PLAYER_MESSAGE - 1, -1, "center")
-    self.assets.fonts["small"]:setColor(1,1,1, 1)
-  end
-  utils.graphics.resetColor()
   self:drawScreenBottomLayer()
 end