Add virtual destructor to dtQueryFilter
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@ -41,6 +41,10 @@ class dtQueryFilter
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public:
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dtQueryFilter();
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#ifdef DT_VIRTUAL_QUERYFILTER
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virtual ~dtQueryFilter() { }
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#endif
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/// Returns true if the polygon can be visited. (I.e. Is traversable.)
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/// @param[in] ref The reference id of the polygon test.
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/// @param[in] tile The tile containing the polygon.
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