Solved Getting sphere of locations with radius and center point

Hello Everyone,

I'm currently working on a plugin where I want to play particle effects in a sphere around the player. I know this can be done, but I don't really know the math needed to calculate this.

First you would have to find a way to describe a sphere using math on 3D locations, and then find a way to divide it into locations a half a block (or less) from each other. How can I achieve this?

Wout

Nevermind! I figured it out by myself! (Well, found it on the forums somewhere) Here is the code:

Code:java

public static List<Location> circle(Location loc, Integer r, Integer h, Boolean hollow, Boolean sphere, int plus_y) {
        List<Location> circleblocks = new ArrayList<Location>();
        int cx = loc.getBlockX();
        int cy = loc.getBlockY();
        int cz = loc.getBlockZ();
        for (int x = cx - r; x <= cx + r; x++)
            for (int z = cz - r; z <= cz + r; z++)
                for (int y = (sphere ? cy - r : cy); y < (sphere ? cy + r : cy + h); y++) {
                    double dist = (cx - x) * (cx - x) + (cz - z) * (cz - z) + (sphere ? (cy - y) * (cy - y) : 0);
                    if (dist < r * r && !(hollow && dist < (r - 1) * (r - 1))) {
                        Location l = new Location(loc.getWorld(), x, y + plus_y, z);
                        circleblocks.add(l);
                    }
                }
 
        return circleblocks;
    }

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