RGN on Script

[karyuuouji 0]

Hi guys... I am planning on making a script where it simulates dropping of item when a monster is killed, but on a determined percentage...

Example:

if a monster is killed, there is a 10% change of dropping gold... 

 

how do I approach this calculation?

I tried using rand() but I am not very confident about it cause I cant place a random seed... 
Can anyone help me with this?

Also, can killedrid determine if the killed mob is a Boss or Mini-Boss?

[meko 170]

if all you want to do is drop an item, this can be done directly in the mob db

 

about rand() you cannot use a custom seed; Hercules generates its own

 

With killedrid you could get the mob id with getunitdats(UDT_CLASS, killedrid) and then you can get further information with getmonsterinfo()

[karyuuouji 0]

if I do it in mob_db... then I would edit all monster to drop 1 item... which is very much tedious TBH... so I just make use of the OnNPCKillEvent do simulate the dropping of items (which should be directly to the players inventory)... i searched the script_command in the doc folder but I can't find a command for generating random number with seed... 

What I want to do specifically is when a monster is killed:

- determine if its a Boss, Mini-Boss or just a Normal monster.

- generate a random number based on some seed (maybe from time).

- based on the result of RNG, if it is bellow the percentage i defined, give an item.

 

I have made a simple code for this but I am not sure if it is the best approach or if can be optimized more.
what I did in my scripts:
- set an array of Boss monster that I know.

- check if the killed monster is in the array.

- generate a random number from 0 to 9999

- if the result is <= 999 (which is 10%), give an item

- announce the player who received the item and from what monster.

 

I tested my script and it works as expected, but sometimes I think it drop more often than not...
 

[meko 170]

It's impossible to have perfect RNG without natural entropy. You'd need a hardware generator for that, and even then they're not always perfect

[karyuuouji 0]

Will this code suffice?

if ((rand(0,10000) -= 999) < 0) { // Emulate the 10% drop chance
    getitem Gold,1; // Gives gold if the result is 10%
}

That is the code I used and it works.. maybe I will just stick to this

 

My problem now is determining if the killed mob is a Boss, MiniBoss or Normal monster...