New error screen;

lib/love.lua

@@ -47,6 +47,94 @@ function love.run()
   end
 end
 
+local function error_printer(msg, layer)
+  print((debug.traceback('Error: ' .. tostring(msg), 1 + (layer or 1)):gsub('\n[^\n]+$', '')))
+end
+
+function love.errhand(msg)
+	msg = tostring(msg)
+
+	error_printer(msg, 2)
+
+	if not love.window or not love.graphics or not love.event then
+		return
+	end
+
+	if not love.graphics.isCreated() or not love.window.isCreated() then
+		if not pcall(love.window.setMode, 800, 600) then
+			return
+		end
+	end
+
+	-- Reset state.
+	if love.mouse then
+		love.mouse.setVisible(true)
+		love.mouse.setGrabbed(false)
+	end
+	if love.joystick then
+		for i,v in ipairs(love.joystick.getJoysticks()) do
+			v:setVibration() -- Stop all joystick vibrations.
+		end
+	end
+	if love.audio then love.audio.stop() end
+	love.graphics.reset()
+	love.graphics.setBackgroundColor(35, 35, 35)
+	local font = love.graphics.setNewFont('media/fonts/pixel.ttf', 8)
+
+	love.graphics.setColor(255, 255, 255, 255)
+
+	local trace = debug.traceback()
+
+	love.graphics.clear()
+	love.graphics.origin()
+
+	local err = {}
+
+	for l in string.gmatch(trace, '(.-)\n') do
+		if not string.match(l, 'boot.lua') then
+			l = string.gsub(l, 'stack traceback:', 'more details:\n')
+			table.insert(err, l)
+		end
+	end
+
+	local p = table.concat(err, '\n')
+
+	p = string.gsub(p, '\t', '')
+	p = string.gsub(p, '%[string "(.-)"%]', '%1')
+
+	local _, lines = font:getWrap(p, love.graphics.getWidth() - 140)
+
+	local function draw()
+		love.graphics.clear()
+		love.graphics.setColor(255, 255, 255, 128)
+		love.graphics.print('groupGore crashed =[\n\nhere\'s why:', 64, 64)
+		love.graphics.setColor(255, 255, 255, 255)
+		love.graphics.printf(msg, 64, 64 + font:getHeight() * 4, love.graphics.getWidth() - 64)
+		love.graphics.setColor(255, 255, 255, 128)
+		love.graphics.printf(p, 64, 64 + font:getHeight() * 6, love.graphics.getWidth() - 64)
+		love.graphics.present()
+	end
+
+	while true do
+		love.event.pump()
+
+		for e, a, b, c in love.event.poll() do
+			if e == "quit" then
+				return
+			end
+			if e == "keypressed" and a == "escape" then
+				return
+			end
+		end
+
+		draw()
+
+		if love.timer then
+			love.timer.sleep(0.1)
+		end
+	end
+end
+
 function love.graphics.rectangleCenter(style, x, y, w, h, pix)
   local ox, oy = math.round(x - (w / 2)), math.round(y - (h / 2))
   if pix then ox = ox + .5 oy = oy + .5 end
@@ -61,4 +149,4 @@ end
 
 function love.graphics.width(x) x = x or 1 return love.window.getWidth() * x end
 function love.graphics.height(x) x = x or 1 return love.window.getHeight() * x end
-function love.graphics.minUnit(x) return math.min(love.graphics.width(x), love.graphics.height(x)) end
+function love.graphics.minUnit(x) return math.min(love.graphics.width(x), love.graphics.height(x)) end