43 lines
2.8 KiB
Markdown
43 lines
2.8 KiB
Markdown
# NavMeshLink
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NavMesh Link creates a navigable link between two locations that use NavMeshes.
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This link can be from point to point or it can span a gap, in which case the Agent uses the nearest location along the entry edge to cross the link.
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You must use a NavMesh Link to connect different NavMesh Surfaces.
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To use the NavMesh Link component, navigate to **GameObject > AI > NavMesh Link**.
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## Parameters
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| **Property** | **Description** |
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|:------------------------------|:-------------------------|
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| **Agent Type** | Specify the Agent type that can use the link.|
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| **Start Point** | Specify the start point of the link, relative to the GameObject. Defined by XYZ coordinates. |
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| **End Point** | Specify the end point of the link, relative to the GameObject. Defined by XYZ coordinates. |
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| **Align Transform To Points** | Clicking this button moves the GameObject at the link’s center point and aligns the transform’s forward axis with the end point. |
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| **Cost Modifier** | When the cost modifier value is non-negative the cost of moving over the NavMeshLink is equivalent to the cost modifier value times the Euclidean distance between NavMeshLink end points.
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| **Bidirectional** | With this checkbox selected, NavMesh Agents traverse the NavMesh Link both ways (from the start point to the end point, and from the end point back to the start point).<br/>When this checkbox is cleared, the NavMesh Link only functions one-way (from the start point to the end point only). |
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| **Area Type** | The area type of the NavMesh Link (this affects pathfinding costs). <br/> - **Walkable** (this is the default option)<br/> - **Not Walkable** <br/> - **Jump** |
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## Connecting multiple NavMesh Surfaces together
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If you want an Agent to move between multiple NavMesh Surfaces in a Scene, they must be connected using a NavMesh Link.
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In the example Scene above, the blue and red NavMeshes are defined in different NavMesh Surfaces, with a NavMesh link connecting them.
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Note that when connecting NavMesh Surfaces:
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* You can connect NavMesh Surfaces using multiple NavMesh Links.
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* Both the NavMesh Surfaces and the NavMesh Link must have same Agent type.
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* The NavMesh Link’s start and end point must only be on one NavMesh Surface - be careful if you have multiple NavMeshes at the same location.
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* If you are loading a second NavMesh Surface and you have unconnected NavMesh Links in the first Scene, check that they do not connect to any unwanted NavMesh Surfaces.
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