[VRMC_springBone_limit] job 側のロジック実装

[ousttrue]

これは
VRMC_springBone_limit
の実装です。

springbone の jobsystem 側のみの実装となっています。
既存システムに影響がないつもりですが、
spring1joint あたり float4x2(32byte) から float4x4 (64byte) の
メモリ消費量の増加があります。

public readonly struct BlittableJointMutable
{
        private readonly float4x2 _data; => float4x4
}

[ousttrue]

デフォルトで 0 詰めされて AnglelimitTypes.None になることを想定しています。
ご指摘あればよろしくお願いします。

[Copilot]

Pull Request Overview

This PR implements the job system logic for VRMC_springBone_limit extension, adding angle limiting functionality to the spring bone physics simulation. The implementation restructures collision detection and introduces comprehensive angle constraint types for spring joints.

Key changes include:

• Implementation of angle limit constraints (Cone, Hinge, Spherical) for spring bone joints
• Refactoring of collision detection logic into a separate SpringBoneCollision class with Try-based methods
• Expansion of BlittableJointMutable memory layout from float4x2 to float4x4 to accommodate new angle limit data

Reviewed Changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 7 comments.

File	Description
UpdateFastSpringBoneJob.cs	Integrates angle limit application and refactored collision detection into the main job execution
SpringBoneCollision.cs	New utility class containing extracted collision detection methods with improved Try-based API
BlittableJointMutable.cs	Expanded data structure to include angle limit parameters (type, limits, offset)
Anglelimit/ folder	Complete angle limiting implementation with different constraint types and mathematical utilities

[notargs]

大まか問題なさそうです。Copilotがコメントをつけた箇所について確認お願いします～ 🙏

[notargs]

🍰 math.cos(theta)は使いまわせそう。

var thetaFactor = new float2(math.cos(theta), math.sin(theta));
var phiFactor = new float2(math.cos(phi), math.sin(phi));
return new float3(thetaFactor.y, thetaFactor.x * phiFactor.x, thetaFactor.x * phiFactor.y)

などと書くとわかりやすいか

[notargs]

可読性を捨ててBurstを効かせる（ことを期待する）なら一応次のようにも書けそう

var v = math.sin(new float4(theta + math.PIHALF, theta, phi + math.PIHALF, phi));
return new float3(v.y, v.x * v.z, v.x * v.w);

[ousttrue]

読めません

[ousttrue]

cos_theta 変数作ります。

[notargs]

LGTM 👍