Imported from yuse168/Roomies (.claude/skills/unity-skills/skills/physics/SKILL.md). Install upstream with npx skills add yuse168/Roomies --skill physics. Copyright stays with the author.

Physics Skills

Editor-time physics queries (raycast / overlap), gravity, PhysicMaterial assets, and layer collision matrix.

Operating Mode

Approval：查询类 skill（physics_raycast / physics_check_overlap / physics_get_gravity / physics_get_layer_collision 等，源码标 SkillMode.SemiAuto）直接执行；变更类（physics_set_gravity / physics_create_material / physics_set_material / physics_set_layer_collision，标 SkillMode.FullAuto）需用户 grant，grant 后服务端一步执行返结果。
Auto / Bypass：所有 skill 直接执行；Auto 走 AI 自我评估，Bypass 全放行。
本模块不含 Delete / PlayMode / Reload / 高危 skill，无 Bypass-only 拦截项。
注意：所有 skill 都在编辑器线程同步运行。真实物理模拟（积分、碰撞响应）仅在 Play mode 下推进；本模块只做单帧 query + 资产/全局设置写入，不会启动模拟。

DO NOT (common hallucinations):

physics_add_rigidbody / physics_add_collider do not exist → use component_add with componentType "Rigidbody"/"BoxCollider"/etc.
physics_simulate does not exist → physics simulation runs during Play mode; this module does not step the simulation
Raycast results use world-space coordinates

Routing:

For adding physics components → use component module
For physics material → use physics_create_material (this module)
For layer collision matrix → physics_set_layer_collision (this module)

Skills

`physics_raycast`

Cast a ray and get hit info. Parameters:

originX, originY, originZ (float): Origin point.
dirX, dirY, dirZ (float): Direction vector.
maxDistance (float, optional): Max distance (default 1000).
layerMask (int, optional): Layer mask (default -1).

Returns: { hit: true, collider: "Cube", distance: 5.2, ... }

`physics_check_overlap`

Check for colliders in a sphere. Parameters:

x, y, z (float): Center point.
radius (float): Sphere radius.
layerMask (int, optional): Layer mask.

`physics_get_gravity`

Get global gravity setting. Parameters: None.

`physics_set_gravity`

Set global gravity setting. Parameters:

x, y, z (float): Gravity vector (e.g. 0, -9.81, 0).

`physics_raycast_all`

Cast a ray and return ALL hits (penetrating).

Parameter	Type	Required	Default	Description
originX	float	Yes	-	Ray origin X
originY	float	Yes	-	Ray origin Y
originZ	float	Yes	-	Ray origin Z
dirX	float	Yes	-	Direction X
dirY	float	Yes	-	Direction Y
dirZ	float	Yes	-	Direction Z
maxDistance	float	No	1000	Max ray distance
layerMask	int	No	-1	Layer mask filter

Returns: { count, hits: [{ objectName, instanceId, path, point, normal, distance }] }

`physics_spherecast`

Cast a sphere along a direction and get hit info.

Parameter	Type	Required	Default	Description
originX	float	Yes	-	Origin X
originY	float	Yes	-	Origin Y
originZ	float	Yes	-	Origin Z
dirX	float	Yes	-	Direction X
dirY	float	Yes	-	Direction Y
dirZ	float	Yes	-	Direction Z
radius	float	Yes	-	Sphere radius
maxDistance	float	No	1000	Max cast distance
layerMask	int	No	-1	Layer mask filter

Returns: { hit, objectName, instanceId, point, distance }

`physics_boxcast`

Cast a box along a direction and get hit info.

Parameter	Type	Required	Default	Description
originX	float	Yes	-	Origin X
originY	float	Yes	-	Origin Y
originZ	float	Yes	-	Origin Z
dirX	float	Yes	-	Direction X
dirY	float	Yes	-	Direction Y
dirZ	float	Yes	-	Direction Z
halfExtentX	float	No	0.5	Box half extent X
halfExtentY	float	No	0.5	Box half extent Y
halfExtentZ	float	No	0.5	Box half extent Z
maxDistance	float	No	1000	Max cast distance
layerMask	int	No	-1	Layer mask filter

Returns: { hit, objectName, instanceId, point, distance }

`physics_overlap_box`

Check for colliders overlapping a box volume.

Parameter	Type	Required	Default	Description
x	float	Yes	-	Box center X
y	float	Yes	-	Box center Y
z	float	Yes	-	Box center Z
halfExtentX	float	No	0.5	Box half extent X
halfExtentY	float	No	0.5	Box half extent Y
halfExtentZ	float	No	0.5	Box half extent Z
layerMask	int	No	-1	Layer mask filter

Returns: { count, colliders: [{ objectName, path, isTrigger }] }

`physics_create_material`

Create a PhysicMaterial asset.

Parameter	Type	Required	Default	Description
name	string	No	"New PhysicMaterial"	Material name
savePath	string	No	"Assets"	Save directory path
dynamicFriction	float	No	0.6	Dynamic friction value
staticFriction	float	No	0.6	Static friction value
bounciness	float	No	0	Bounciness value

Returns: { success, path }

`physics_set_material`

Set PhysicMaterial on a collider (supports name/instanceId/path).

Parameter	Type	Required	Default	Description
materialPath	string	Yes	-	Asset path of the PhysicMaterial
name	string	No	null	GameObject name
instanceId	int	No	0	GameObject instance ID
path	string	No	null	GameObject hierarchy path

Returns: { success, gameObject, material }

`physics_get_layer_collision`

Get whether two layers collide.

Parameter	Type	Required	Default	Description
layer1	int	Yes	-	First layer index
layer2	int	Yes	-	Second layer index

Returns: { layer1, layer2, collisionEnabled }

`physics_set_layer_collision`

Set whether two layers collide.

Parameter	Type	Required	Default	Description
layer1	int	Yes	-	First layer index
layer2	int	Yes	-	Second layer index
enableCollision	bool	No	true	Whether to enable collision

Returns: { success, layer1, layer2, collisionEnabled }

Minimal Example

import unity_skills

# Raycast from position downward, check for hits
result = unity_skills.call_skill("physics_raycast",
    originX=0, originY=5, originZ=0,
    dirX=0, dirY=-1, dirZ=0,
    maxDistance=10
)
if result.get("hit"):
    print(f"Hit: {result['hitObjectName']} at distance {result['distance']}")

Exact Signatures

Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.

unity-physics

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