Bad Throws

A Fabric mod that always returns extreme projectile vector values.

How ?

When choosing what velocity to give a projectile, Minecraft does the following:

public Vec3 getMovementToShoot(final double xd, final double yd, final double zd, final float pow, final float uncertainty) {
    return (new Vec3(xd, yd, zd)).normalize().add(this.random.triangle((double)0.0F, 0.0172275 * (double)uncertainty), this.random.triangle((double)0.0F, 0.0172275 * (double)uncertainty), this.random.triangle((double)0.0F, 0.0172275 * (double)uncertainty)).scale((double)pow);
}

The above code adds an offset with a triangle distribution of bounds 0.0172275 * uncertainty in each axis. See the Minecraft Wiki for uncertainty values per-projectile.

This creates a cube of possible vector end-points, where values closer to the center are linearly more likely. With the mod, every projectile's throw angle vector will be on one of the 8 corners of the cube, emulating a theoretically possible throw.

Why ?

Most pearl or arrow lineups are luck-dependent. With a bad throw, the whole machine can break. When creating throw lineups or capturing shot / dispensed arrows, make sure that it works, even with a bad throw.

License

Copyright (C) 2026  AeshKit

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, see
<https://www.gnu.org/licenses/&gt;.