Post by Myrak in Mystiqa comments

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Is there some kind of bugtracker somewhere? I tried to start the 0.8-linux demo and I was able to see a loading screen but after that it crashed to desktop with the following error:

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
at Mystiqa.MapState.Render () [0x0071e] in <cc43de19fd054eae806186ce72cd45e6>:0 at Mystiqa.Master.Draw (Microsoft.Xna.Framework.GameTime gameTime) [0x00000] in <cc43de19fd054eae806186ce72cd45e6>:0 at Microsoft.Xna.Framework.Game.DoDraw (Microsoft.Xna.Framework.GameTime gameTime) [0x0001c] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.Game.Tick () [0x00239] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.SdlGamePlatform.RunLoop () [0x00021] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.Game.Run (Microsoft.Xna.Framework.GameRunBehavior runBehavior) [0x00082] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.Game.Run () [0x0000c] in <7df0491f78b541c48c6807e478b54930>:0 at Mystiqa.Program.Main () [0x0000c] in <cc43de19fd054eae806186ce72cd45e6>:0 [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
at Mystiqa.MapState.Render () [0x0071e] in <cc43de19fd054eae806186ce72cd45e6>:0 at Mystiqa.Master.Draw (Microsoft.Xna.Framework.GameTime gameTime) [0x00000] in <cc43de19fd054eae806186ce72cd45e6>:0 at Microsoft.Xna.Framework.Game.DoDraw (Microsoft.Xna.Framework.GameTime gameTime) [0x0001c] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.Game.Tick () [0x00239] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.SdlGamePlatform.RunLoop () [0x00021] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.Game.Run (Microsoft.Xna.Framework.GameRunBehavior runBehavior) [0x00082] in <7df0491f78b541c48c6807e478b54930>:0 at Microsoft.Xna.Framework.Game.Run () [0x0000c] in <7df0491f78b541c48c6807e478b54930>:0 at Mystiqa.Program.Main () [0x0000c] in <cc43de19fd054eae806186ce72cd45e6>:0

I am running on a Manjaro Linux with the 5.6.2-1 kernel and the open source amdgpu driver.

Juice4 years ago

Hey! Sorry to hear that. I'm no linux dev and have very little knowledge. That being said, it's questionable whether I can fix the bug. I rely on the MonoKickstart made by other people and of course the framework MonoGame itself.

Have you tried installing the Mono framework (mono-runtime, mono-complete) and run it manually without using the "Kick" file?

Sadly the error doesn't tell me that much, there are a lot of instances in the render function :/

Myrak4 years ago

Hi, installing the "mono" package on my system helped to start the game (even with the Kick file). But unfortunately it's still not really running.

I can create a character now but when I start the game I only get a black screen. Also when changing anything in the configuration leads to a black screen even before the character generation/selection.

I tried some different start options (different LD_PRELOAD paths, start Kick, start Mystica.bin.x86, ...x86_64, Mystica.exe with or without mono) but nothing helped (but I was able to always reach the menu and get into the "black" game - sounds and music were fine and I was hearing sword sounds and so on).

So installing mono definitely helped, but not enough. ;-) Maybe you have another idea? Which mono version are you using? I have mono 6.4.0 on my system.

Thanks anyway for your quick answer!

Juice4 years ago

Sure! For me using the Kick on Linux works fine. I have no idea man...

Have you tried running it via Wine?

Myrak4 years ago

The linux version doesn't run within wine.

I tried the windows version with and without wine and I have the same error like in the linux version (so only a black screen in the game). Maybe it really is an issue with the mono version that I use. On which system did you successfully test the linux version?

Juice4 years ago

The latest version of Ubuntu always works for me!

Myrak4 years ago

Ok, I tested it inside a virtual machine with Ubuntu 19.10 and there it worked. I also didn't need to install anything.

So maybe it is some kind of missing/wrong-version library in my host system (Arch Linux and Manjaro Linux usually have newer libraries than Ubuntu).

Something that you can enhance in your game: add statistics. How many deaths (maybe even why)? How many of each enemy killed? Playtime total? Maybe (if it exists) playtime per dungeon/chapter/...

This is something, where players could compete with each other ("I have been faster/without deaths/...")

With these statistics you could als implement achievements in the game (like "Monster hunter" - "Killed all enemy types", "I hate slimes!" - "Killed 1000 slimes" and so on). Achievements are a big factor for replaying a game.

But this was just a first thought about your game. I now have to enable the sound in my virtual machine to really play and test it. xD

Juice4 years ago

Nice, have fun man!

Yeah, statistics have to added sooner or later for sure! Steam Achievements haha

itch.io

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