Switch to Vec3fp and fp variables for character

src/Campaign.h

@@ -5,6 +5,7 @@
 #include <optional>
 #include <string>
 #include <vector>
+#include "navigation/PathFinder.h"
 
 namespace FRG {
 
@@ -21,7 +22,7 @@ namespace FRG {
 		std::string teleportsJsonPath;
 		std::string triggerZonesJsonPath;
 		std::string lightsJsonPath;
-		Eigen::Vector3f playerPosition = Eigen::Vector3f::Zero();
+		Vec3fp playerPosition;
 
 		// Where the taxi drives in when the player calls it. No taxi when absent.
 		struct Taxi {