Better error handling

controller-host/conf.lua

@@ -2,4 +2,5 @@ function love.conf(t)
 	t.version = "11.4"
 	t.window.title = "Spider Controller"
 	t.window.resizable = true
+	t.window.fullscreen = true
 end

controller-host/main.lua

@@ -19,9 +19,16 @@ function printTable(table, indentation)
 	end
 end
 
+function safeCall(target, ...)
+	local success, msg = pcall(target, ...)
+	if not success then
+		errorMessage = msg
+	end
+end
+
 function love.draw(...)
-	if love.draw2 then
-		love.draw2(...)
+	if love.draw2 and not errorMessage then
+		safeCall(love.draw2, ...)
 	else
 		local text = "Awaiting payload..."
 		local font = love.graphics.getFont()
@@ -58,11 +65,11 @@ end
 function love.update(...)
 	local message = mqttEventChannel:pop()
 	if message then
-		love.mqtt[message.target](unpack(message.args))
+		safeCall(love.mqtt[message.target], unpack(message.args))
 	end
 
-	if love.update2 then
-		love.update2(...)
+	if love.update2 and not errorMessage then
+		safeCall(love.update2, ...)
 	end
 end
 
@@ -78,6 +85,7 @@ end
 
 function love.mqtt.message2(topic, payload)
 	if topic == "controller/payload" then
+		errorMessage = nil
 		local success = love.filesystem.unmount("client.zip")
 		if not success then
 			print("Could not unmount client.zip")
@@ -98,7 +106,7 @@ function love.mqtt.message2(topic, payload)
 		love.load = nil
 		chunk()
 		if love.load then
-			love.load()
+			safeCall(love.load)
 		end
 	elseif love.mqtt.message then
 		love.mqtt.message(topic, payload)