I'm trying to make a random encounter with a monster based on %.
I got in my MySQL database a column called "monster_chancespawn" :
What I want to do is to do a random MySQL SELECT
in my "monster" DATABASE based on these %.
I already got this
$monsterspawn=$db->prepare('SELECT * FROM monster');
$monsterspawn->execute();
$monsterspawn->CloseCursor();
foreach ($monsterspawn as $infospawn)
{
echo . $infospawn["monster_chanceloot"] . ;
}
With this, it normally echo "50 30 20", but nothing really useful. What I want to do is :
monster_chanceloot
value I could do something like this I guess
$randomspawn = rand(0, 100);
if ($randomspawn >= 0 && $randomspawn <= $infospawn["monster_chanceloot"])
{ $monstername = "Monster1" }
elseif ($randomspawn >= $infospawn["monster_chanceloot"] && $randomspawn <= $infospawn["monster_chanceloot"](Monster 2's one))
{ $monstername = "Monster2" }
And same thing for Monster 3. The main problem would be that is does not let me change the number of monsters available, and the other problem is that I don't know how to get the monster_chanceloot of each monster outside of the foreach
. And I don't want to make 30 MYSQL connection, so avoid using it each time.
Thanks !
EDIT : Here is a possibility given by "German Drulyk" :
I got Monster1 , Monster2 , Monster3 . I duplicate Monster1 2times in my database and Monster2 1time.
I have now 3 Monster1 , 2 Monster2 and 1 Monster3 . So : 50% of chance to pick a Monster1, 33,3 for Monster 2 and 16,6 for Monster 3.
To get more accurate results, you can copy them to 100 to have 1 monster = 1%. To get a monster, simply do :
$query=$db->prepare('SELECT * FROM MONSTERDDB ORDER BY RAND() LIMIT 1');
$query->execute();
IF you will never exceed 100 monsters in a zone then you need a table with 3 columns; zone_id
, chance
, monster_id
Per zone, insert 100 records and set the chance to 1 through 100 inclusively.
Per record, add a monster_id respective to it's common-ness; all 100 records per zone should have a monster_id
For example, zone1 needs 50 records with monster1, 30 records for monster2, and 20 records for monster3
In PHP, you can write your query like so
$sql = "select
monster_id
from
table_name
where
zone_id = $zoneId and
chance = ".rand(1, 100);
Additionally, I have not tried this but I guess native MySQL can achieve the same effect :
$sql = "select
monster_id
from
table_name
where
zone_id = $zoneId and
chance = FLOOR( 1 + RAND() * 100 )";
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