Journey

java.lang.Object
- worldBuilder.Journey

```
public class Journey
extends java.lang.Object
```
These nodes are used to define territory and trade routes. - A border is the line, between two cities, where the cost of travel (from each) is equal. - A trade route is the lowest cost path between them. We identify these by expanding journeys out from each city until they meet journeys from another city.

- Nested Class Summary
  
  Nested Classes
  Modifier and Type Class Description
  
  class Journey.NextSteps
  this is a (lowest) cost-ordered queue of possible next steps in our outward journeys.
- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  int city
  
  double cost
  
  int index
  
  Journey route
- Constructor Summary
  
  Constructors
  Constructor Description
  
  Journey(int index, int fromCity, Journey fromPoint)
  create a node for the next step in an outward journey
- Method Summary
  - Methods inherited from class java.lang.Object
    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - index
```
public int index
```
  - city
```
public int city
```
  - cost
```
public double cost
```
  - route
```
public Journey route
```
- Constructor Detail
  - Journey
```
public Journey(int index,
               int fromCity,
               Journey fromPoint)
```
    create a node for the next step in an outward journey
    
    Parameters:
    
    index - ... corresponding MeshPoint index
    
    fromCity - ... large city from which we are traveling
    
    fromPoint - ... previous point in our journey