COMP 1021 Assn2 (1 Viewer)

[cyrax83]

So ... ideas on how to start ?

 

[redslert]

lol have fun!
look on the bright side, at least you get the 1 week break to do it

 

[McLake]

Ooh, what's it on?

 

[Capulet]

some kind of image rotating stack thingy or rather. seems scary :S

 

[underthesun]

tetris AI is scarier ,and if you got mattk as tutor he makes you do binf style mutation and evolution for the AI...

btw how annoying is typedeffing a pointer as something with a "ptr" in the end? it makes it seem like its not a pointer, yet it is. Ambiguous :/

 

[Ragerunner]

What did u guys get for Assignment 1?

I got 3.7/10

lol.

Anyone joining me in Comp1B again next year?

I doubt I can even get 1/100 of the assignment 2 done.

NO DON'T BLAME MY LACK OF ATTENTION IN LECTURES

 

[tonberry_kun]

just look at the code he has already given u
it basically has done almost all of stage1 for u... all u need to do is modify it to keep track of more than 1 image

 

[ace]

I agree, Tetris AI

Welcome to PSYCHO HARD land

People in Comp1721 wish for Comp1021 assignments

 

[A J C]

Tetris, ahhhhhhhhhhhhhhhhhhhhhhhhhhh

1021 well, just read lectures and yeah.

 

[cyrax83]

it's just that i've done a good amount on stage1 so far. I've created my link list structure and all that, done the functions and updated the loop on the input to put it to the linked list, but i still get a Segmentation fault <core dumped> error when i try to load an image no idea whats the deal

 

[tonberry_kun]

ur pointer is probably pointing to a NULL element

 

[McLake]

I agree, Tetris AI

Welcome to PSYCHO HARD land

People in Comp1721 wish for Comp1021 assignments

Tetris AI would be hard, but harder than writeing a C complier from scrath that complies to MIPS Assembler?

For debugging get someone smart/who has used *NIX before to show you how to use gdb. And always, ALWAYS complie with dcc (not gcc) with the -Wall -pedantic -O options ON.

 

[sunny]

If you are developing at home on Cygwin, there is no dcc, so once in a while, upload your work and compile it with dcc over ssh.

 

[McLake]

And just one more word of advise: BACKUP. Once you have a segment working, save a copy of your program in case you screw it up. Trust me, I screwed up several time in COMP1721 and regretted having not made enough copies. Again, if you have a smart friend/have expericence with *NIX use CVS or an equivalent to save your backups ...

 

[cyrax83]

for some reason the program doesn't seem to work properly over putty

 

[sunny]

for some reason the program doesn't seem to work properly over putty

You're lucky you found out early then! Under Cygwin, and especially when programming in C you get very litte protection against crap you do to yourself, such as writing over bits of memory you shouldn't be (eg, reading/writing out of bounds on an array).

By compiling with dcc under a Unix environment, you'll be able to pick out these errors that don't normally show up.

You just watch, you're going to see people panicking when they try and submit over ssh and their program won't even compile with dcc.

 

[McLake]

for some reason the program doesn't seem to work properly over putty

My guess is that you are accessing unintlised memory, which happended to always come from the same place on your computer (and hence appear to work), but now comes from a different palce on the CSE machines (and hence has exposed a bug).

 

[ace]

Tetris AI would be hard, but harder than writeing a C complier from scrath that complies to MIPS Assembler?

Yes, I here that is the next assignment we will be given. Fun times ahead, I predict lots of failing students or ones that want Andrew Taylor 6 feet under the ground

 

[sunny]

Yes, I here that is the next assignment we will be given. Fun times ahead, I predict lots of failing students or ones that want Andrew Taylor 6 feet under the ground

It is actually a fun assignment to do =) Just so you know, theres a 3rd year subject called Compilers, but no, andrewt doesn't teach it

 

[McLake]

It is actually a fun assignment to do =) Just so you know, theres a 3rd year subject called Compilers, but no, andrewt doesn't teach it

Which I now feel like I don't need to do, thanks to 1B