Design Jumps by Feel, Export Physics by Math
Set jump height, time to apex, and horizontal speed in tiles/meters/pixels. Instantly visualize the trajectory, then copy engine-ready values and code for Unity, Godot, and Unreal.
Why It’s Useful
Design-First Inputs
Work in jump height and time-to-apex instead of guessing gravity constants.
Instant Visualization
See the arc update live so you can tune “snappy vs floaty” in seconds.
Common Mechanics Included
Variable jump, asymmetric fall gravity, and multi-jump previews supported.
Copy-Ready Engine Code
Export values and templates for Unity (C#), Godot (GDScript), Unreal (C++), and generic.
Presets to Start Fast
Try presets inspired by classic games to get into the right ballpark immediately.
Share with Your Team
Generate a shareable URL so designers and engineers stay aligned.
Jump Arc Features
Real-Time Arc Preview + Drag to Tune
Drag the apex point to adjust jump height and timing directly on the canvas. Use sliders or numeric inputs for precise values when you need exact tuning.
- Apex marker + distance readout
- Playback controls (speed + reset)
- Works with 0 horizontal speed (vertical jump)
Presets and Practical Recommendations
Start from recognizable jump “feel” presets (e.g., Celeste/Mario-like) and get suggested coyote time and jump buffering ranges based on your timing.
- Game-inspired presets
- Coyote time + jump buffer suggestions
- Warnings for extreme values
Engine Code Export
Copy and paste export templates that include your computed gravity and initial velocity. Useful for quick prototypes and for handing off exact values to engineering.
- Unity Rigidbody2D
- Godot CharacterBody2D
- Unreal example values
- Download as file
