Design a error screen

main.lua

@@ -22,6 +22,7 @@ LOADING_IMAGE_FILE = love.graphics.newImage('res/loading.png')
 --- Show the loading text while we are loading resources<br>
 --- **WARNING**: should only be used while loading the game!
 function ShowLoadingText(thing)
+    love.resize(love.graphics.getDimensions())
     love.graphics.replaceTransform(GLOBAL_TRANSFORM)
     love.graphics.setFont(love.graphics.newFont(20))
     love.graphics.clear()
@@ -161,6 +162,7 @@ function love.keypressed(key, scancode)
     elseif scancode == "f2" and SCENE.title ~= "Input Config" and SCENE.title ~= "Game" then
         SCENE = InputConfigScene()
     elseif scancode == "f12" then REQUEST_BREAK()
+    elseif scancode == "f11" then error("TEST")
     -- function keys are reserved
     elseif string.match(scancode, "^f[1-9]$") or string.match(scancode, "^f1[0-2]+$") then
         return
@@ -368,6 +370,133 @@ function love.run()
     end
 end
 
+function love.errorhandler(msg)
+    local showScreenshot = false
+    local errorCopied = false
+
+    -- Reset audio.
+    if love.audio then love.audio.stop() end
+
+    -- Render everything again in a canva
+    love.graphics.origin()
+    local screenshot_canva, screenshot_canva_scale
+    local ok, _ = pcall(function()
+        if love.graphics.getSystemLimits().texturesize >= 1280 then
+            screenshot_canva = love.graphics.newCanvas(1280, 960)
+            screenshot_canva_scale = 0.5
+        else
+            error()
+        end
+    end)
+    if not ok then
+        screenshot_canva = love.graphics.newCanvas(640, 480)
+        screenshot_canva_scale = 1
+    end
+
+    love.graphics.setCanvas(screenshot_canva)
+        pcall(
+            function()
+                love.graphics.origin()
+                local transformer = love.math.newTransform(0, 0, 0, 2, 2)
+                love.graphics.replaceTransform(transformer)
+                SCENE:render()
+            end
+        )
+    love.graphics.setCanvas()
+
+    -- Handling the error
+    local err={"Error:"..msg}
+    local c=2
+    for l in debug.traceback("",2):gmatch("(.-)\n") do
+        if c>2 then
+            if not l:find("boot") then
+                err[c]=l:gsub("^\t*","")
+                c=c+1
+            end
+        else
+            err[2]="Traceback"
+            c=3
+        end
+    end
+    print("\n"..table.concat(err,"\n",1,c-2))
+    local p = table.concat(err,"\n", 4)
+
+    local function draw()
+        love.graphics.origin()
+        love.graphics.replaceTransform(GLOBAL_TRANSFORM)
+        love.graphics.clear()
+
+        love.graphics.setColor(1, 1, 1)
+        love.graphics.draw(screenshot_canva, 0, 0, 0, screenshot_canva_scale)
+        
+        if not showScreenshot then
+            love.graphics.setColor(0, 0, 0, 0.75)
+            love.graphics.rectangle("fill", 0, 0, 640, 480)
+            drawText([[
+OH NO! Tromi has crashed.
+Since this is not the official port, please do not report any bugs to mycophobia.
+Instead, report this to me via my Discord ``sweetsea`` with a screenshot of this.
+
+REMEMBER TO SCREENSHOT BECAUSE ERROR INFO IS NOT SAVED!
+
+Ctrl + C: copy the error info   | If you click or tap, a window appear with 4 options:
+Space   : show/hide screenshot  | OK: Quit              Copy: copy error info
+Escape  : Quit                  | Cancel: Go back       Show: show/hide screenshot
+
+Traceback:]]..(errorCopied and " (Copied to clipboard)" or ""),
+            20, 10, 620, "left")
+            drawText(p, 40, 200, 600, "left")
+        end
+
+        love.graphics.present()
+    end
+
+    local fullErrorText = p
+    local function copyToClipboard()
+        love.system.setClipboardText(fullErrorText)
+        errorCopied = true
+    end
+
+    local buttons = {"OK", "Cancel", "Copy", "Show"}
+
+    return function()
+        love.event.pump()
+
+        for e, a, b, c in love.event.poll() do
+            if e == "quit" then
+                return 1
+            elseif e == "keypressed" and a == "escape" then
+                return 1
+            elseif e == "keypressed" and a == "c" and love.keyboard.isDown("lctrl", "rctrl") then
+                copyToClipboard()
+            elseif e == "keypressed" and a == "space" then
+                showScreenshot = not showScreenshot
+            elseif e == "keypressed" and a == "f4" then
+                SETTINGS["fullscreen"] = not SETTINGS["fullscreen"]
+                love.window.setFullscreen(SETTINGS["fullscreen"])
+            elseif e == "touchpressed" or e == "mousepressed" then
+                local pressed = love.window.showMessageBox("Quit Tromi?", "Remember to save a copy of screenshot, since they are not saved!", buttons)
+                if pressed == 1 then
+                    return 1
+                elseif pressed == 3 then
+                    copyToClipboard()
+                elseif pressed == 4 then
+                    showScreenshot = not showScreenshot
+                end
+            elseif e == "resize" then
+                love.resize(love.graphics.getDimensions())
+            end
+        end
+
+        draw()
+
+        if love.timer then
+            love.timer.sleep(0.1)
+        end
+    end
+
+end
+
 local minos = {'R_d', 'O_d', 'Y_d', 'G_d', 'C_d', 'B_d', 'M_d'}
 local main_bg_grid = {}
 for x=1, 40 do

scene/game.lua

@@ -4,8 +4,7 @@ GameScene.title = "Game"
 local tas = false
 
 function GameScene:new(player_name, replay_file, replay_grade)
-    local game_mode = require 'game.gamemode'
+    game_mode = require 'game.gamemode'
-    local ruleset
 
     VCTRL[9].show = false; VCTRL[10].show = false   -- Hide SELECT and QUIT button
     if PENTO_MODE then