+ std::string name = "";
+ std::string label = "";
+
+ double density = 1.0;
+
+ int id = -1;
+
+ enum State {
+ SOLID = 0,
+ LIQUID = 1,
+ GAS = 2,
+ PLASMA = 3,
+ };
+ // the resource's natural state
+ // TODO: something about temperature and pressure and stuff
+ int state = SOLID;