Better Auto-Jump
A Minecraft Fabric mod that replaces and vastly improves the vanilla auto-jump system. Client-side only.
Features
- Improved Auto-Jump -- Predicts collisions in the direction of movement and automatically jumps over blocks up to a configurable height. Accounts for the Jump Boost potion effect and respects an angle threshold so you only jump over blocks in your general path.
- Edge Jumping (Parkour Helper) -- Detects when you're approaching the edge of a block while moving forward and triggers a jump just before the edge. (Disabled by default, enable in mod's settings)
Configuration
Edit <game_dir>/config/better-auto-jump.json manually, or use the Mod Menu GUI (recommended). The GUI offers:
- Master Toggle -- Enable/disable the entire mod.
- Obstacle Jump / Edge Jump -- Individual feature toggles.
- Preset Selector -- Switch between built-in and saved custom presets.
- Variance / Cooldown -- Random tick delay (0–5) and minimum ticks (1–10+) between edge jumps.
- Advanced Settings -- Fine-tune all detection parameters and save custom presets.
Edge Detection Parameters
| Parameter | Default | Description |
|---|---|---|
| Sprint Distance | 2.0 | Max scan distance when sprinting |
| Walk Distance | 1.5 | Max scan distance when walking |
| Step Distance | 0.35 | Distance between scan samples |
| Start Distance | 0.3 | Distance from player to start scanning |
| Scan Radius | 0.3 | Horizontal radius of the scan area |
| Vertical Offset | 0.05 | Vertical offset for the scan area |
| Min Velocity | 0.1 | Minimum player speed to trigger |
| Solid Min | 0.001 | Min ground height at feet (edge if below) |
| Solid Max | 0.6 | Max ground height at feet |
Obstacle Detection Parameters
| Parameter | Default | Description |
|---|---|---|
| Jump Height | 1.2 | Max block height to auto-jump |
| Prediction Mult | 6.0 | How far ahead to check for collisions |
| BPT Clamp Max | 0.8 | Max blocks-per-tick clamp |
| BPT Slow Threshold | 0.2 | Slow movement threshold |
| BPT Slow Multiplier | 0.7 | Multiplier applied during slow movement |
| Angle Threshold | 30.0 | Max angle between movement and obstacle |
