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ASSS Custom Projects - <C> Lockon

Initrd.gz - Tue Feb 24, 2009 7:49 pm
Post subject: <C> Lockon

Lockon: A highly configurable turret module, similar to HS's pointdefense.

NOTE: In testing, upload will come after

Here's a complete list of things you can do with it:

It is based on HS's pointdefense.

tcsoccerman - Tue Feb 24, 2009 8:11 pm
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Nice work, should prove useful.

Samapico - Tue Feb 24, 2009 10:50 pm
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Quote:

I have not compiled/tested this yet

... wut?

Dr Brain - Wed Feb 25, 2009 7:33 am
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Looking through the code I can see it won't compile.

It also looks like you don't handle attaching properly. If you attach to someone that's attached, then later they detach, you'll still be attached to the first player. That's the reason I told you not to use point defense as a reference.

Samapico - Wed Feb 25, 2009 10:59 am
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That's also why any code should be compiled and tested, even if you're sure it works

Initrd.gz - Wed Feb 25, 2009 5:26 pm
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Ok, I am sorry. I should have compiled and tested it. I just posted it when I was done with it. I will look over it again and post it when it is done. I apologize again.

Cheese - Wed Feb 25, 2009 7:00 pm
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imagine if you bought an untested car...

dealer> look its our new car, we threw some parts in a bucket, but noone has tried to drive it yet! Starting at $11,000!

Initrd.gz - Thu Feb 26, 2009 7:01 pm
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Looks like all the syntax errors are gone. I'm ignoring the "Dereferencing void * pointers" errors.

Dr. Brain, I am not sure what you mean by attaching.
Do you mean:
Player A is the fake.
Player B is the owner.
Player C is someone else.

Player B is attached to C, and A attaches to B, so it attaches to C.
Are you saying when B detaches from C, A is still attached? Because it looks like it should detach.

Dr Brain - Thu Feb 26, 2009 10:47 pm
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Initrd.gz wrote:

the "Dereferencing void * pointers" errors.

That sounds bad. Cast pointers to the correct type before you deref them.

Initrd.gz wrote:

Player B is attached to C, and A attaches to B, so it attaches to C.
Are you saying when B detaches from C, A is still attached? Because it looks like it should detach.

I didn't see any code to do that, but it should be simple enough to test if it works properly.

Initrd.gz - Fri Feb 27, 2009 2:15 pm
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Dr Brain wrote:

That sounds bad. Cast pointers to the correct type before you deref them.

Ah, so you mean instead of:

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link->data->attribute

I should use:

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Turret *turret = (Turret *) link->data;
turret->attribute

Ok, I'll change that...

Edit: I also get this warning when I try to compile:

Quote:

0 E:\...\lockon.c [Warning] `nul.gcda' is not a gcov data file

I am following the instructions for compiling with Dev-C++

Edit2: Changing the type works. The turret now compiles into a DLL

Samapico - Sun Mar 01, 2009 1:13 am
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You could also simply do:

(Turret *) (link->data) ->attribute;

Though if you need to access several attributes in the next lines, it's definitely more efficient to create a pointer to link->data first

Dr Brain - Sun Mar 01, 2009 9:27 am
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Samapico wrote:

it's definitely more efficient to create a pointer to link->data first

Any modern compiler will produce the same code regardless of which way you do it. So always pick the style that is easier to read and understand.

Initrd.gz - Sun Mar 01, 2009 3:46 pm
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Ok, as I said, the module compiles into a DLL. However, for some reason, I cannot compile it on Linux with gcc.

Here's the command I am using, and I bet it is wrong:

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gcc lockon.c -o lockon.so -I./include -I./

The compiler complains about stuff such as LLAlloc and even atan2 not being defined. For some reason it is not including the files.

(I just had an Idea while typing this, I'm going to compile util.c with it like Dev-C++ does)

Edit: Still doesnt work. Output:

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$ gcc lockon.c ./main/util.c -o lockon.so -I./include -I./ -Wall
lockon.c: In function ?get_best_target?:
lockon.c:197: warning: statement with no effect
lockon.c: In function ?turret_kickoff?:
lockon.c:480: warning: suggest parentheses around assignment used as truth value
lockon.c: In function ?MM_lockon?:
lockon.c:900: warning: control reaches end of non-void function
lockon.c: At top level:
lockon.c:787: warning: ?interface? defined but not used
/usr/lib/gcc/i486-linux-gnu/4.2.4/../../../../lib/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
/tmp/ccPNvLFR.o: In function `fireangle':
lockon.c:(.text+0x413): undefined reference to `atan2'
/tmp/cc1H9JJR.o: In function `MPRemove':
util.c:(.text+0x1d27): undefined reference to `__pthread_register_cancel'
util.c:(.text+0x1d74): undefined reference to `__pthread_unregister_cancel'
collect2: ld returned 1 exit status

Dr Brain - Sun Mar 01, 2009 6:22 pm
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Don't run gcc yourself on linux. Make a new directory in the asss src and put a .mk file in it, along with your source. The format for the .mk can be copied from the turf directory (it's pretty straight forward). Once you've done that:

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make deps
make

Initrd.gz - Sun Mar 01, 2009 9:21 pm
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For some reason I cannot compile ASSS:
-quote removed-

Edit: Installed a few packages and that part compiles, and I installed libdbd-mysql, but it seems the mysql isnt compiling:

Quote:

gcc -std=gnu99 -pipe -I. -Iinclude -I../build -D_REENTRANT -D_GNU_SOURCE -fPIC -g -Wall -I/opt/db-4.0.14/include -fPIC \
-DNODQ -DNOTREAP -DNOSTRINGCHUNK -DNOMPQUEUE -DNOMMAP \
-o ../build/dbtool ../build/statcodes.o main/util.c main/dbtool.c -L/opt/db-4.0.14/lib -Wl,-rpath,/opt/db-4.0.14/lib -ldb-4
main/dbtool.c: In function ?print_quoted?:
main/dbtool.c:177: warning: pointer targets in passing argument 1 of ?strchr? differ in signedness
main/dbtool.c:178: warning: pointer targets in passing argument 1 of ?fputs? differ in signedness
main/dbtool.c: In function ?stats_print_stats?:
main/dbtool.c:445: warning: pointer targets in passing argument 1 of ?print_quoted? differ in signedness
gcc -std=gnu99 -pipe -I. -Iinclude -I../build -D_REENTRANT -D_GNU_SOURCE -fPIC -g -Wall -I/opt/mysql/include -c -o ../build/mysql.o database/mysql.c
database/mysql.c:17:19: error: mysql.h: No such file or directory
database/mysql.c:44: error: expected ?=?, ?,?, ?;?, ?asm? or ?__attribute__? before ?*? token
database/mysql.c: In function ?do_query?:
database/mysql.c:55: warning: implicit declaration of function ?mysql_real_query?
database/mysql.c:55: error: ?mydb? undeclared (first use in this function)
database/mysql.c:55: error: (Each undeclared identifier is reported only once
database/mysql.c:55: error: for each function it appears in.)
database/mysql.c:60: warning: implicit declaration of function ?mysql_error?
database/mysql.c:60: warning: format ?%s? expects type ?char *?, but argument 3 has type ?int?
database/mysql.c:62: warning: implicit declaration of function ?mysql_errno?
database/mysql.c:66: warning: implicit declaration of function ?mysql_field_count?
database/mysql.c:74: error: ?MYSQL_RES? undeclared (first use in this function)
database/mysql.c:74: error: ?res? undeclared (first use in this function)
database/mysql.c:74: warning: implicit declaration of function ?mysql_store_result?
database/mysql.c:79: warning: format ?%s? expects type ?char *?, but argument 3 has type ?int?
database/mysql.c:89: warning: implicit declaration of function ?mysql_free_result?
database/mysql.c: In function ?close_db?:
database/mysql.c:97: warning: implicit declaration of function ?mysql_close?
database/mysql.c:97: error: ?MYSQL? undeclared (first use in this function)
database/mysql.c:97: error: expected expression before ?)? token
database/mysql.c: In function ?work_thread?:
database/mysql.c:105: error: ?mydb? undeclared (first use in this function)
database/mysql.c:105: warning: implicit declaration of function ?mysql_init?
database/mysql.c:109: warning: format ?%s? expects type ?char *?, but argument 3 has type ?int?
database/mysql.c:120: warning: implicit declaration of function ?mysql_real_connect?
database/mysql.c:120: error: ?CLIENT_COMPRESS? undeclared (first use in this function)
database/mysql.c:120: warning: comparison between pointer and integer
database/mysql.c:122: warning: format ?%s? expects type ?char *?, but argument 3 has type ?int?
database/mysql.c:138: warning: implicit declaration of function ?mysql_ping?
database/mysql.c: In function ?Query?:
database/mysql.c:217: warning: implicit declaration of function ?mysql_escape_string?
database/mysql.c: In function ?GetRowCount?:
database/mysql.c:241: warning: implicit declaration of function ?mysql_num_rows?
database/mysql.c:241: error: ?MYSQL_RES? undeclared (first use in this function)
database/mysql.c:241: error: expected expression before ?)? token
database/mysql.c: In function ?GetFieldCount?:
database/mysql.c:246: warning: implicit declaration of function ?mysql_num_fields?
database/mysql.c:246: error: ?MYSQL_RES? undeclared (first use in this function)
database/mysql.c:246: error: expected expression before ?)? token
database/mysql.c: In function ?GetRow?:
database/mysql.c:251: warning: implicit declaration of function ?mysql_fetch_row?
database/mysql.c:251: error: ?MYSQL_RES? undeclared (first use in this function)
database/mysql.c:251: error: expected expression before ?)? token
database/mysql.c: In function ?GetField?:
database/mysql.c:256: error: ?MYSQL_ROW? undeclared (first use in this function)
database/mysql.c:256: error: expected ?)? before ?row?
database/mysql.c:257: warning: control reaches end of non-void function
database/mysql.c: In function ?GetLastInsertId?:
database/mysql.c:261: warning: implicit declaration of function ?mysql_insert_id?
database/mysql.c:261: error: ?mydb? undeclared (first use in this function)
make: *** [../build/mysql.o] Error 1

Dr Brain - Sun Mar 01, 2009 9:43 pm
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Don't compile the mysql parts then. Set

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have_mysql := no

in system.mk.

Initrd.gz - Mon Mar 02, 2009 7:55 pm
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K, thanks.

Gonna test once I move my server ( which requires me getting a static IP address... )

Initrd.gz - Mon May 25, 2009 10:20 pm
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Finally fixed it so that it will compile, but I have a problem.

The module compiles, inserts, and attaches, but when I try to use the ?simpleturret command, the server crashes. Source attached.

Dr Brain - Tue May 26, 2009 6:42 am
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If you're running on linux, the server should make a .bt file (backtrace) for every server crash. Take a look inside it. You may need to install gdb to get actual data.