repo: remove bevy dependency from buoy-physics (breaks ui)

[philiplinden]

This pull request refactors the buoy-physics crate to remove its dependency on Bevy and Avian3D, making it a standalone physics library. It also introduces new geometry and force calculation utilities, simplifies the codebase, and updates the crate's version and description. The most significant changes are grouped below:

Decoupling from Bevy and Avian3D:

• Removed all Bevy and Avian3D dependencies from crates/buoy-physics/Cargo.toml, all source files, and the workspace member list in Cargo.toml. The crate now uses only glam, log, serde, and uom for math, logging, serialization, and units. ([[1]](https://github.com/philiplinden/buoy/pull/42/files#diff-2e9d962a08321605940b5a657135052fbcef87b5e360662bb527c96d9a615542L5-R5), [[2]](https://github.com/philiplinden/buoy/pull/42/files#diff-2e9d962a08321605940b5a657135052fbcef87b5e360662bb527c96d9a615542L39), [[3]](https://github.com/philiplinden/buoy/pull/42/files#diff-e38a006a2863fbaa4eef61316ea66fa47aa22f18498fee627f1e6bed4016e3e4L3-R16), [[4]](https://github.com/philiplinden/buoy/pull/42/files#diff-808ab521f89c11581ced6590bbdcd4b5e07d4cae1d5bceadca467522190b331dL8-L26), [[5]](https://github.com/philiplinden/buoy/pull/42/files#diff-c4009bef3ffcb157a2b30ab7f1a0540877198b047b5bc59805485095a375c68aL1-L92), [[6]](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dL1-R21), [[7]](https://github.com/philiplinden/buoy/pull/42/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2L2-L8), [[8]](https://github.com/philiplinden/buoy/pull/42/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2L27-L30), [[9]](https://github.com/philiplinden/buoy/pull/42/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2L53-R44), [[10]](https://github.com/philiplinden/buoy/pull/42/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2L101-R93), [[11]](https://github.com/philiplinden/buoy/pull/42/files#diff-5099f071fb1f0487b232d3c89fef59d934fdc443d6e27689a7ba6ca96d876b8bL6-R7))

Physics and Force Calculations:

• Introduced a new force.rs module with standalone functions for drag, buoyancy, gravity, and weight calculations using glam::Vec3 and uom types. ([crates/buoy-physics/src/force.rsR1-R50](https://github.com/philiplinden/buoy/pull/42/files#diff-69aac7b2b54d51eb071b3e204fed808e249f3ac3629335686abccce06467e99eR1-R50))
• Removed the previous forces.rs module, including its Bevy-based plugin and system logic. ([[1]](https://github.com/philiplinden/buoy/pull/42/files#diff-c4009bef3ffcb157a2b30ab7f1a0540877198b047b5bc59805485095a375c68aL1-L92), [[2]](https://github.com/philiplinden/buoy/pull/42/files#diff-5099f071fb1f0487b232d3c89fef59d934fdc443d6e27689a7ba6ca96d876b8bL6-R7))

Geometry Utilities:

• Added new geometry functions in geometry.rs for generating cuboid corners, calculating volumes for cuboids, cylinders, capsules, and convex polyhedra, and projecting areas for drag calculations. ([[1]](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dL1-R21), [[2]](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dR42-R96), [[3]](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dL59-L103), [[4]](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dL119-L192), [[5]](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dL227-L337))
• Refactored and consolidated volume and area calculation logic for various shapes, removing Bevy and Avian3D types. ([crates/buoy-physics/src/geometry.rsL227-L337](https://github.com/philiplinden/buoy/pull/42/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dL227-L337))

API and Type Simplification:

• Removed Bevy-specific traits (e.g., Component, Resource) from physics types such as Atmosphere, GasSpecies, and IdealGas. ([[1]](https://github.com/philiplinden/buoy/pull/42/files#diff-808ab521f89c11581ced6590bbdcd4b5e07d4cae1d5bceadca467522190b331dL8-L26), [[2]](https://github.com/philiplinden/buoy/pull/42/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2L53-R44), [[3]](https://github.com/philiplinden/buoy/pull/42/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2L101-R93))
• Updated the crate version to 0.4.0 and clarified the description to reflect the removal of Bevy dependency. ([crates/buoy-physics/Cargo.tomlL3-R16](https://github.com/philiplinden/buoy/pull/42/files#diff-e38a006a2863fbaa4eef61316ea66fa47aa22f18498fee627f1e6bed4016e3e4L3-R16))

Project Structure and Maintenance:

• Removed unused or deprecated plugin logic and configuration types, and updated the workspace member list to comment out the UI crate. ([[1]](https://github.com/philiplinden/buoy/pull/42/files#diff-2e9d962a08321605940b5a657135052fbcef87b5e360662bb527c96d9a615542L5-R5), [[2]](https://github.com/philiplinden/buoy/pull/42/files#diff-5099f071fb1f0487b232d3c89fef59d934fdc443d6e27689a7ba6ca96d876b8bL6-R7))

Let me know if you'd like more details on any of these changes!

[github-actions]

Changelog

Notable changes to this project will be documented in this file.

0.3.1 - 2025-08-14

⚙️ Repository

• Remove bevy dependency from buoy-physics (97a377b)

📜 Full Changelog

Changelog

Notable changes to this project will be documented in this file.

0.3.0 - 2025-07-28

🧪 Experimental

• Physics & Geometry update - janky but it works (dev: physics & Geometry update - janky but it works #41) (7354de7)
• Isolate runtime and ui (891a7e8)
• Janky but it works (75423ad)
• Add idealgas to balloon (60b0ccd)
• Implement forces and advanced geometry functions (bfc9d8a)
• Remove the repl for now (c4b0ddb)
• Simulation pipeline stages and a better repl (ddf638f)

⚙️ Repository

• Remove big_space options (repo: remove big_space options #39) (b03eff2)