feat: add a prompt system to the RadianceScene

sonic-radiance.love/game/modules/gui/actionPrompt.lua

@@ -0,0 +1,52 @@
+local CanvasElement = require "birb.modules.gui.elements.parent"
+local ActionPrompt = CanvasElement:extend()
+
+function ActionPrompt:new()
+    self.text = ""
+    ActionPrompt.super.new(self, "actionPrompt", 0, 0, 424, 240)
+    self.depth = -2
+    self.opacity = 0
+    self.isShown = false
+end
+
+function ActionPrompt:setText(text)
+    if (utils.string.isEmpty(text)) then
+        self:hide()
+    else
+        self.text = text
+        self:show()
+    end
+end
+
+function ActionPrompt:hide()
+    if (self.isShown) then
+        self.tweens.tweens = {}
+        self:newTween(0.0, 0.6, {opacity = 0}, "outExpo")
+    end
+    self.isShown = false
+end
+
+function ActionPrompt:show()
+    if (not self.isShown) then
+        self.tweens.tweens = {}
+        self:newTween(0.0, 0.6, {opacity = 1}, "outExpo")
+    end
+    self.isShown = true
+end
+
+function ActionPrompt:draw()
+    if (not utils.string.isEmpty(self.text)) then
+      local w = self.assets.fonts["small"]:getWidth(self.text) + 16
+      love.graphics.setColor(0,0,0,0.5 * self.opacity)
+      local x, y = 424 - w/2 - 4, 240 - 20
+      love.graphics.rectangle("fill", x - w/2, y + 1, w, 15, 8, 8)
+      love.graphics.setColor(1, 1, 1, self.opacity)
+      self.assets.fonts["small"]:setColor(1, 1, 1, self.opacity)
+      self.assets.fonts["small"]:draw(self.text, x, y, -1, "center")
+      self.assets.fonts["small"]:setColor(1, 1, 1, 1)
+      utils.graphics.resetColor()
+    end
+end
+
+
+return ActionPrompt

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

@@ -3,6 +3,7 @@ local RadianceScene = BirbScene:extend()
 
 local Overlay = require "game.modules.gui.overlay"
 local MessageQueue = require "game.modules.messagequeue"
+local ActionPrompt = require "game.modules.gui.actionPrompt"
 
 function RadianceScene:new(haveBorder, showVersion)
     RadianceScene.super.new(self)
@@ -18,6 +19,7 @@ function RadianceScene:new(haveBorder, showVersion)
 
     Overlay(haveBorder, showVersion)
     MessageQueue(self)
+    ActionPrompt()
 end
 
 function RadianceScene:hideOverlay()
@@ -28,6 +30,10 @@ function RadianceScene:showMessage(message)
     self.gui.elements["messageQueue"]:addMessage(message)
 end
 
+function RadianceScene:setPrompt(message)
+    self.gui.elements["actionPrompt"]:setText(message)
+end
+
 function RadianceScene:showOverlay(darken)
     self.gui:showScreen("overlay")
     if (darken) then