Maintain a history of links traversed

1 files changed, 15 insertions, 2 deletions

diff --git a/game/vehicles/vehicle.h b/game/vehicles/vehicle.h
index d59588c..f7defb3 100644
--- a/game/vehicles/vehicle.h
+++ b/game/vehicles/vehicle.h
@@ -6,13 +6,26 @@
 #include <game/worldobject.h>
 #include <string>
 
+class LinkHistory {
+public:
+	using Entry = std::pair<LinkWPtr, unsigned char /*dir*/>;
+	using Return = std::pair<LinkCPtr, unsigned char /*dir*/>;
+	Return add(const LinkWPtr &, unsigned char);
+	Return getAt(float) const;
+
+private:
+	std::vector<Entry> links;
+	float totalLen;
+};
+
 class Vehicle : public WorldObject, public Physical {
 public:
 	Vehicle(const LinkPtr & link, const std::string & obj, const std::string & tex);
-	LinkWPtr link; // Which link are we travelling along
-	unsigned char linkDir {0}; // Starting end e0->e1 or e1->e0
 	float linkDist {0}; // distance long current link
 	float speed {50}; // speed in m/s (~75 km/h)
+
+protected:
+	LinkHistory linkHist;
 };
 
 #endif