Added extra buttons:

- Implemented retry button*
- Escape on mode select sends you to title screen
- Escape on title screen closes the game
- Added "Exit Game" entry on title screen, closes the game when selected

*Pardon my angry comment in `scene/game.lua`.

scene/exit.lua

@@ -0,0 +1,23 @@
+local ExitScene = Scene:extend()
+require 'load.save'
+
+ExitScene.title = "Exit Game"
+
+function ExitScene:new()
+end
+
+function ExitScene:update()
+    love.event.quit()
+end
+
+function ExitScene:render()
+end
+
+function ExitScene:changeOption(rel)
+end
+
+function ExitScene:onKeyPress(e)
+end
+
+return ExitScene
+

scene/game.lua

@@ -57,11 +57,21 @@ end
 
 function GameScene:onKeyPress(e)
 	if (self.game.completed) and
-		e.scancode == "return" and e.isRepeat == false then
+		(e.scancode == "return" or e.scancode == "escape") and e.isRepeat == false then
 		highscore_entry = self.game:getHighscoreData()
 		highscore_hash = self.game.hash .. "-" .. self.ruleset.hash
 		submitHighscore(highscore_hash, highscore_entry)
 		scene = ModeSelectScene()
+    elseif (e.scancode == config.input.retry) then
+        -- fuck this, this is hacky but the way this codebase is setup prevents anything else
+        -- it seems like all the values that get touched in the child gamemode class
+        -- stop being linked to the values of the GameMode superclass because of how `mt.__index` works
+        -- not even sure this is the actual problem, but I don't want to have to rebuild everything about 
+        -- the core organisation of everything. this hacky way will have to do until someone figures out something.
+        love.keypressed("escape", "escape", false)
+        love.keypressed("return", "return", false)
+    elseif e.scancode == "escape" then
+        scene = ModeSelectScene()
 	end
 end
 

scene/input_config.lua

@@ -15,6 +15,7 @@ local configurable_inputs = {
     "rotate_right2",
     "rotate_180",
     "hold",
+    "retry",
 }
 
 function ConfigScene:new()

scene/mode_select.lua

@@ -100,6 +100,8 @@ function ModeSelectScene:onKeyPress(e)
 	elseif (e.scancode == config.input["left"] or e.scancode == "left") or
 		(e.scancode == config.input["right"] or e.scancode == "right") then
 		self:switchSelect()
+    elseif e.scancode == "escape" then
+        scene = TitleScene()
 	end
 end
 

scene/title.lua

@@ -3,6 +3,7 @@ local TitleScene = Scene:extend()
 local main_menu_screens = {
 	ModeSelectScene,
 	InputConfigScene,
+    ExitScene,
 }
 
 function TitleScene:new()
@@ -43,6 +44,8 @@ function TitleScene:onKeyPress(e)
 		self:changeOption(-1)
 	elseif (e.scancode == config.input["down"] or e.scancode == "down") and e.isRepeat == false then
 		self:changeOption(1)
+    elseif e.scancode == "escape" and e.isRepeat == false then
+        love.event.quit()
 	end
 end