Math & Variables :: game

[M_Vegeta]

I haven't been on this form long, this is my first time needing help on anything like this. So, lets see how it goes ok 😃

Anyway, i want to build a game. I have a flat-file database of 628 rows that contain amoung other things, numbers: Att|Def. I want to randomely chose two rows and subtract the Att of one from the Att of the other, that should not be hard - but here comes the stumper for me; how do I skip over the not needed info to extract the numbers I want? & How do I take the resulting number and subtract it from a Life Points var.?

I just started this project to learn more about php, all I have done so far is build the database which has more info then just the Att|Def in each row, it is seperated by | characters. I am also doing this project in flash so any ideas that can transfer to both would be great. I know I have a lot to learn so some good sites to learn from would also be great.

Thanks for your time & hope to learn from you soon!!

[bastien]

well you could use two random numbers that fit between the 0-627 so that you can use mysql_fetch_row for two particular datasets and then do the math

use the [man]rand[\man] function for this...

the entire file is read into an array then using the numbers generated from the RAND function, select the two datasets and do the math

this should work for flash as well. actionscript especially in v5 or mx should be able to handle the array and the random function

hth

[ednark]

you can simply use the [man]file/man function to grab the entire database into a php array

here is a small example of what you want

file dbz.php:

Great Saiyaman|40|40
Krillin|3|2
Mystic Gohan|1000|1000
Garlic Junior|10|1000000000

file: index.php

<?php
/// seed our random number generator so it will actually be random
[man]srand[/man] ((float) [man]microtime[/man]() * 10000000);

/// dump the whole goddamned database into memory
$db = [man]file[/man]( './dbz.db' );

[man]print[/man] "<pre>DATABASE:";[man]print_r[/man]($db);print "</pre>";


/// get two random rows
[man]list[/man]( $rand_index_1, $rand_index_2 ) = [man]array_rand[/man]( $db, 2 );

$character_data_1 = [man]trim[/man]($db[$rand_index_1]);
$character_data_2 = trim($db[$rand_index_2]);

print "<pre>{$rand_index_1}: ";print_r($character_data_1);print"</pre>";
print "<pre>{$rand_index_2}: ";print_r($character_data_2);print"</pre>";


/// slit up the data into variables
list( $name_1, $attack_1, $defense_1 ) = [man]preg_split[/man]( '/\|/', $character_data_1 );
list( $name_2, $attack_2, $defense_2 ) = preg_split( '/\|/', $character_data_2 );
$attack_diff = $attack_1 - $attack_2;

[man]echo[/man] "<br /><hr /><br /> {$name_1} attacks {$name_2} with a power difference of {$attack_diff} ";

?>