Project - Game-O Alien Invaders

taylorza · September 15, 2013, 11:57pm

I just posted Game-O Alien Invaders on Codeshare. Feel free to discuss and make suggestions here.

Gus_Issa · September 16, 2013, 12:04am

This was one of my favorite games when i was growing up Thanks to you, I can now play it again. Thanks for sharing.

ianlee74 · September 16, 2013, 1:37am

Nice job!

Architect · September 16, 2013, 9:19am

Great game!

Architect · September 16, 2013, 11:02am

Hmmm… Trying to run it in my emulator and getting out of memory exception. Did you try to run it in an emulator? (Ignore all “unsupported” exceptions during startup)

I have one suggestion for improvement. Microsoft.SPOT.TinyCore is one of the “expensive” assemblies to use. You only reference it for EventHandler delegate. I would define my own delegate and would remove the reference completely.

devhammer · September 16, 2013, 3:45pm

@ taylorza - Top-notch! Performance looks really good. Looking forward to playing with this.

taylorza · September 16, 2013, 8:30pm

@ Architect - I have not tried it on the emulator, I will give that a shot and see how it goes. Thanks for the tip on the Microsoft.SPOT.TinyCore, I will look at removing that… Going to download your emulator now.

@ Gus, @ Ianlee74 & @ devhammer - Thanks!

taylorza · September 16, 2013, 9:41pm

@ Architect - I just tried running it in the emulator, but the emulator crashes with an Access Violation, there is no useful stacktrace info, I will probably need to get the code for the core emulator libraries and trace into that.

I will look into it, but just thought I would mention it in case you have faced this before. Btw. this is after ignoring all the NotSupportedExceptions.

Architect · September 17, 2013, 7:20am

Yeah, I had that too right after the out of memory exception.

taylorza · September 17, 2013, 7:28am

@ Architect - I had made the change you suggested regarding the TinyCore assembly and was not getting an OutOfMemoryException.

Architect · September 17, 2013, 9:46am

I had that change locally as well, but still getting out of memory exception and then Access Violation in the emulator. I assume access violation is a side effect of the out of memory exception.

Failed allocation for 19 blocks, 228 bytes
[b]#### Exception System.OutOfMemoryException - CLR_E_OUT_OF_MEMORY (3) ####
#### Message: 
#### dotnetwarrior.NETMF.GameO.AnimatedSprite::.ctor [IP: 0021] ####
#### dotnetwarrior.NETMF.GameO.AnimatedSprite::.ctor [IP: 0004] ####
#### AlienInvaders.Alien::.ctor [IP: 0005] ####
#### AlienInvaders.AlienInvadersGame::LoadContent [IP: 0176] ####
#### dotnetwarrior.NETMF.GameO.GameEngine::GameLoop [IP: 0007] ####
[/b]GC: 0msec 84684 bytes used, 2784 bytes available
Type 0F (STRING ): 120 bytes
Type 11 (CLASS ): 16992 bytes
Type 12 (VALUETYPE ): 840 bytes
Type 13 (SZARRAY ): 4812 bytes
Type 03 (U1 ): 216 bytes
Type 04 (CHAR ): 156 bytes
Type 07 (I4 ): 36 bytes
Type 11 (CLASS ): 4104 bytes
Type 12 (VALUETYPE ): 300 bytes
Type 15 (FREEBLOCK ): 2784 bytes
Type 17 (ASSEMBLY ): 11592 bytes
Type 18 (WEAKCLASS ): 48 bytes
Type 19 (REFLECTION ): 48 bytes
Type 1B (DELEGATE_HEAD ): 504 bytes
Type 1D (OBJECT_TO_EVENT ): 360 bytes
Type 1E (BINARY_BLOB_HEAD ): 42144 bytes
Type 1F (THREAD ): 744 bytes
Type 20 (SUBTHREAD ): 96 bytes
Type 21 (STACK_FRAME ): 3288 bytes
Type 27 (FINALIZER_HEAD ): 360 bytes
Type 28 (MEMORY_STREAM_HEAD ): 36 bytes
Type 29 (MEMORY_STREAM_DATA ): 396 bytes
Type 31 (IO_PORT ): 468 bytes
Type 34 (APPDOMAIN_HEAD ): 72 bytes
Type 36 (APPDOMAIN_ASSEMBLY ): 1764 bytes
Failed allocation for 38 blocks, 456 bytes

Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at ClrStartup(CLR_SETTINGS )
at Microsoft.SPOT.Emulator.EmulatorNative.Start() in c:\depot\current\client_v4_2\solutions\windows2\tinyclr\emulatornative.cpp:line 262
at Microsoft.SPOT.Emulator.Emulator.Run() in c:\depot\current\CLIENT_V4_2\Framework\Tools\Emulator\Emulator.cs:line 515
at Microsoft.SPOT.Emulator.Emulator.StartInternal() in c:\depot\current\CLIENT_V4_2\Framework\Tools\Emulator\Emulator.cs:line 731
at Microsoft.SPOT.Emulator.Emulator.Start(String args) in c:\depot\current\CLIENT_V4_2\Framework\Tools\Emulator\Emulator.cs:line 982
at Microsoft.SPOT.Emulator.Emulator.Start() in c:\depot\current\CLIENT_V4_2\Framework\Tools\Emulator\Emulator.cs:line 970
at GameOEmulator.Program.Main() in c:\Dropbox\Projects\GameOEmulator\GameOEmulator\Program.cs:line 53
GC: performing heap compaction…

This is just for your information.

Architect · September 17, 2013, 10:40am

I have changed RAM settings in emulatorconfig to 192K. For some reason it was set to 175K. It runs fine now.

Correct setting: