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some little games (Read 2124 times)

oxidor

some little games
Jun 25^th, 2009, 2:58am

Hi everybody,
(as frenchspeaker, my language is very very bad, sorry)

I'm just discovering Processing and I try to recreate old games of space battle.
As I have some little bases in java, I succeed while creating some games:

befr.net/games/spaceattack/
(my first try)

befr.net/games/spaceattack2/
the same, with images instead of line, circles an rect

befr.net/games/scramble/
a good clone (I think) of my prefered game

befr.net/games/spaceattack3/
my last version of space attack, with new graphic.

My problem is:
I want to use cookies ton read data at the beginning of the game and send data at the end of the game to create a little "online roleplaying" with some battles. I have no idea how to do that.

Big big thanks for the team, I think I never create this games with netbeans.

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: some little games Reply #1 - Jun 25^th, 2009, 4:52am Salut oxidor. I will try your game at home... Cookies will be useless for "online roleplaying" if that means multiplayers: cookies are local to a computer, you need to send data to a server to coordinate several computers. So you need some server side code, in PHP, Java or whatever.

oxidor

Re: some little games
Reply #2 - Jun 25^th, 2009, 4:41pm

I know, I know... my project is not a multiplayer game in real time...

In my project, each player has a spaceship and play sometimes again NPCs but don't confront others players.

cookies seems the easiest system to save scores after a game, but a simple code allowing to access a mySql database is also very good.

I'm good with PHP and SQL, but I begin with Java.

Gordon_CSA Ex Member	Re: some little games Reply #3 - Jun 25^th, 2009, 7:51pm Pretty good start there. The main thing right now is the controls and physics just don't have enough fluidity. I actually prefer the second version of the graphics over the most recent one.

PhiLho

Re: some little games
Reply #4 - Jun 26^th, 2009, 1:26am

You can actually access files, using loadString() and saveString() or similar functions (look at the Reference). But in applet mode, you have to sign it. Same for SQL access, anyway, and it would need a database installed.
You can use, for example, Sun's one (actually from Apache): Java DB (Derby), but that's still 2.5MB, a bit heavy for an applet... There are more if you want to go this way. The H2 page shows a (partial) comparison of some engines). HSQLDB is quite lightweight.

blindfish

Re: some little games
Reply #5 - Jun 26^th, 2009, 1:34am

I'd agree with Gordon on that one - it's a good start but the controls feel a little limiting. Two things stand out:

1. In the vertical shooters there's no way to have your ship stay still. In the horizontal shooter you can't use combined key-presses for diagonal movement. One possible solution to both these issues might be found here.

2. In the vertical shooters shots fired inherit the horizontal movement of the ship - i.e. they fire off at an angle. I must admit I found this a little frustrating.

One final suggestion - since you improved the ship graphics with bitmaps I'd be tempted to do the same with the missiles.

Looks like you've done a lot of work on these though - and it has to be said, the addition of decent graphics completely changes the feel of the games. Did you create those yourself

Where is the what if the what is in why?

oxidor

Re: some little games
Reply #6 - Jun 26^th, 2009, 11:41am

Ok, I found a solution with functions "params" to initiate my games with player's value and "links" to send datas after the game... I'll manipulate my database only with PHP (it's more easy).

For the graphic, I'll keep the background image and the Fonts from the second version and the spaceships from the third.

Quote:

2. In the vertical shooters shots fired inherit the horizontal movement of the ship - i.e. they fire off at an angle. I must admit I found this a little frustrating.

It's voluntary, It find that more easy than firing just in front.

Next version tomorrow... or later.

oxidor

Re: some little games
Reply #7 - Jun 28^th, 2009, 4:55am

I just found another solution to access a mySql database from java:

in processing, I use simply:

Strings s[] = loadStrings("myurl.net/userinfo.php?user=691366&request=login");

and in userinfo.php:

$user = $_GET['user'];
$request = $_GET['request'];
$sqlString = "SELECT $request FROM mygame_user WHERE user_id=$user";

incredibly simple... but it works.

taifunbrowser

Re: some little games
Reply #8 - Jun 30^th, 2009, 7:25am

You're right that it's simple, but be careful. Just by visiting that PHP script and passing request=SOMESTRING into the address, I could access ANY of the user's fields!

Of course, its easy to take care of - but don't forget to do it in the php file (only allow certain requests to actually be queried, that is)

Always on the safe side
-Taif

oxidor YaBB Newbies Offline Posts: 5	Re: some little games Reply #9 - Jul 1^st, 2009, 1:32pm You're right, I just added a security script in php to protect somes pages from acces by standard browser. It's not 100% secure, but I'll search other precautions before creating an online game.

jotham YaBB Newbies Offline Posts: 23 Wellington, New Zealand	Re: some little games Reply #10 - Jul 4^th, 2009, 8:55am looking good!

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