Method distanceSqToCenter

src/main/java/net/minecraft/util/Vec3i.java:108–114

Compute square of distance from point x, y, z to center of this Block

(double xIn, double yIn, double zIn)

     * Compute square of distance from point x, y, z to center of this Block
     */
    public double distanceSqToCenter(double xIn, double yIn, double zIn)
    {
        double d0 = (double)this.getX() + 0.5D - xIn;
        double d1 = (double)this.getY() + 0.5D - yIn;
        double d2 = (double)this.getZ() + 0.5D - zIn;
        return d0 * d0 + d1 * d1 + d2 * d2;
    }

    /**
     * Calculate squared distance to the given Vector