Parkour Calculator

A TAS input planning mod for Minecraft. Plan, simulate, and visualize parkour movement before you execute it.

The Parkour Calculator runs Minecraft's real movement physics tick by tick, so the path you see in the world is exactly how the player will move in game. It is not an approximation and there is no drift.

Video Showcase: https://www.youtube.com/watch?v=XecddwRXxXU

Features

• Tick-by-tick input planning: Set WASD, jump, sneak, sprint, and yaw for every tick.
• Live path preview: The predicted path renders in the world as boxes and updates instantly as you edit.
• In-world editing: Drag the start box to reposition, drag individual ticks to retune facing, and select single ticks or ranges.
• Angle solver: Give it your inputs and constraints, and it computes the yaw angles that satisfy them. It keeps up with Wolfram on single jumps and can handle long solves up to roughly 850 ticks and 200 constraints in under 10 seconds.
• Replay: Play your planned inputs in game, pause and resume mid-run, and keep the path and input table visible while replaying (works only in singleplayer).
• Per-tick movement info: Motion, speed, and combined XZ distance for any tick.
• Customizable rendering: Full control over colors and visualization, with tooltips on every setting.
• Row operations: Add, delete, lock yaw, duplicate, reorder, and multi-select rows.
• Save, load, and share: Plans are stored as JSON, so you can import and export TAS files with others.

Supported loaders

• Fabric 1.21.10 (requires Fabric API)
• Forge 1.8.9
• Forge 1.12.2

Getting started

1. Press G to open the calculator. The toggle key is rebindable under Minecraft's Controls menu, in the Parkour Calculator category.
2. Use File > New to start a TAS, then right click to add ticks and set the start to your position.
3. Toggle inputs per tick, adjust yaw, and watch the path update live.
4. Press Ctrl+S to save. Share via Help > Open Save Folder, and import a friend's file with File > Import.

Installation

Fabric 1.21.10

1. Install the Fabric Loader (https://fabricmc.net/use/installer/) for 1.21.10.
2. Add Fabric API (https://modrinth.com/mod/fabric-api) to your mods folder.
3. Drop the Parkour Calculator jar into the same mods folder.

Forge 1.8.9 / 1.12.2

1. Install MinecraftForge for your version. No extra APIs required.
2. Drop the matching jar into your mods folder.

Links

• Source code: https://github.com/Leg0shii/ParkourCalculatorMod
• Discord: https://discord.gg/minecraft-tas-373166430478401555
• Contact: leg0shi_ on Discord

Credits

Thanks to Baconerd, Curryocity, HammSamichz, Kebabs (Latvia), Prograde, Zpiboo, Drakou, Quartz, Yndranth, Telve, and Scribble for the feedback and support, and to Erasmien for the artwork.