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When an object like a table is monster-clipped, and the top plane of the clip brush is level with the table top, it can cause nearby AAS areas to "rise off the floor" to the level of that plane. If an AI wanders into one of these AAS areas, (most likely during searching) the pathfinding code won't be able to provide the AI a path out of the area, because it considers the area unreachable. The AI is then stuck. The solution involves checking the AI's origin against the lower z bounds of the AAS area's bounding box. This can be done if normal pathfinding fails, as a "second chance". This should be the only time an AI's origin (which is at the soles of their feet) is below the bottom of an AAS area, so it's a reasonable check. |
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rev. 4727: ai.cpp |
- Anonymous
