Solved Set variable to weighted random value

Hello, I want to make it so, when a zombie spawns, it has a 10% chance of having normal walking speed, 40% chance of having a 1.1 walking speed multiplier, and a 50% chance of it having a 1.25 walking speed multiplier. I know how to handle the attributes part of it, but I'm unsure how to create the weights (10%, 40%, 60%).

Thanks!
Smeary Subset

Also, the zombies will be spawning via the plugin, not naturally.

 

You could generate a random number, and then return a decimal value for the speed multiplier for the zombie's speed attributes.

Code:

public static double rngMultiplier() {
    Random r = new Random();
    int k = r.nextInt(10);   //random number 0-9
     
    if (k <= 3) return 1.1;   //values 0, 1, 2, 3 (4/10 = 40%)
    else if (k <= 8) return 1.25;   //values 4, 5, 6, 7, 8 (5/10 = 50%)
    else return 1;   //remaining 10%
}

 

See Random, SecureRandom or ThreadLocalRandom.
Basically, you want to generate a number from 1-10 for example, and if it's 1 (10%) -> normal speed, if it's 2-3-4 (30%) -> 1.1 speed, and if it's the other 5-6-7-8-9-10 (60%) -> 1.25 speed.

 

@c7dev thanks so much. Originally I was going to use an array of 100 values to select a random value from there, but your way is much more memory efficient.

@c7dev This is actually my first forum post... how do you mark it as solved?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

At the top right of the page, you can click "Thread Tools" and set the title prefix to "Solved."