Cache Battle Creation

[Toxocious]

Description

When a battle is created, cache unique data of the foe. Upon the battle being restarted, do a quick comparison of the battle creation cache to the unique data of the foe, and if the data is the same, use the cached data instead of performing additional (and unnecessary) database queries of the foe.

Details

Currently, a simple check of the foe's roster hash should suffice.

if ( $_SESSION['Absolute']['Battle']['Foe']['Roster_Hash'] === $Foe['Roster_Hash'] )
{
    // Use the existing session data to restart the battle.
}
else
{
    // Use the data stored in $Foe to restart the battle.
}

[Toxocious]

Closing as manual implementation isn't necessary with the move to Smogon's Showdown Sim (#18)