Trajectorys

Trajectorys is a client-side Minecraft (Fabric) mod that predicts and visually displays the trajectory of projectiles such as bows, crossbows, and throwable items.
It allows you to confirm the impact point and trajectory before using an item, supporting precise shooting and throwing.

Main Features

1. Trajectory Rendering

When holding an item, the predicted parabolic path of the projectile is displayed as a line.

It is calculated in real-time considering the viewing angle, charge time (e.g., bow draw), and player movement speed.

Resistance in water is also included in the calculation.

2. Hit Box Rendering

The impact point at the end of the predicted trajectory is highlighted with a box.

Block Hit: Displays a box on the surface of the block.

Entity Hit: Displays a box surrounding the entity if it is predicted to hit a mob or player.

3. Show Flying Projectiles

It is possible to display the future trajectory of projectiles that have already been fired and are flying through the air (such as arrows and snowballs).

4. Multiplayer Support (Show Other Players)

You can display the trajectory not only for yourself but also when other players are holding items (can be toggled in settings).

5. Hit Sound

If your attack is predicted to hit an entity, a notification sound (experience orb pickup sound) will play to alert you.

Supported Items & Entities

The mod supports trajectory display for the following items and entities:

Bow

Crossbow (Arrows and Firework Rockets)

Trident

Fishing Rod (Bobber trajectory)

Snowball

Egg

Ender Pearl

Experience Bottle

Splash Potion

Others: Projectiles such as Ghast fireballs, Wither skulls, Dragon fireballs, etc.

Configuration

If Mod Menu and Cloth Config API are installed, you can customize the following settings from the in-game configuration screen.

General

Enable Mod: Toggle the mod ON/OFF.

Show Own Trajectory: Whether to show your own trajectory.

Show Other Players: Whether to show other players' trajectories.

Show Flying Projectiles: Whether to show the trajectory of > projectiles already in flight.

Play Hit Sound: Whether to play a sound upon predicted impact.

Render

Render Line: Whether to display the trajectory line.

Line Width: The thickness of the line.

Line Color: The color of the line (supports transparency).

Render Hit Box: Whether to display the box at the impact point.

Hit Box Size: The size of the box.

Entity Hit Color: The color when hitting an entity.

Block Hit Color: The color when hitting a block.

Environment

Minecraft Java Edition

Fabric Loader

Fabric API

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