Random.choice() using a seed.

Game Engine Game Engine Support and Discussion
1

Hello dudes!
I’m trying to generate the same object order from a random generation, using a seed.
So for this effect I made my little random generator. Note: This is for planet generation.
I thought that just putting random.seed= s would solve the problem, I was wrong.
here’s my code:


import bge, math, mathutils,random
sce= bge.logic.getCurrentScene()

def emit(cont):
    own= cont.owner
    emittion=own["emit"]
    particles=(own["particles"])
    count= own["particles_Count"]
    rand=random
    rand.seed=own["seed"]
    rangeX=own["rangeX"];rangeY=own["rangeY"]; rangeZ=own["rangeZ"]
        
    if emittion ==True:
        for a in range(count):
            b= rand.choice(particles)
            p= sce.addObject(sce.objectsInactive[b], own)
            posX= rand.uniform(-rangeX,rangeX);posY= rand.uniform(-rangeY,rangeY); posZ= rand.uniform(-rangeZ,rangeZ)
            p.position= own.position+mathutils.Vector((posX,posY,posZ)); p.setParent(own,1,1)

So the result must always be the same, every time the script is run, it needs to run only once!
Thank you for your assistance.

2

I’m confused. According to the Python docs random.seed should be a function not a property.

3

Here, the seed is a function taking the value of the property… I think!

4

Got it. you need an instance of random.Random
replace


rand=random
rand.seed=own["seed"]

with


rand=random.Random()
rand.seed(own["seed"])
5

OK, it works, thanks a lot!