Bug in distance calc

[spike]

The distance shown on the map, to waypoints, and in Contracts, is wrong most of the time. Possibly only works when both Y coordinates are positive?? Otherwise usually only gives the X distance, ignoring any Y.

[Cory Trese]

I will investigate. The positive and negative numbers are just in the UI, an effect to make De Valtos Prime 1,1

I could use this function but people might complain the number of moves didn't match:


public double distance(Point p, Point q)
{ double dx = p.x - q.x; //horizontal difference
double dy = p.y - q.y; //vertical difference
double dist = Math.sqrt( dx*dx + dy*dy ); //distance using Pythagoras theorem
return dist;
}

[spike]

Thanks. How come it could be different to Pythagoras? Does a diagonal move of one square in ST RPG not take sqrt(2) times as long as a vertical or horizontal move of one square?

Ah ok ST space is not Pythagorean space. Diagonal movement costs the sane as orthogonal. So you need a different formula.

[spike]

Sorry, the distance calc is all fine but I just expected Pythagorean space. ST RPG obviously takes place on the surface of a sphere. Like a planet's oceans. Another hint that the game engine might originally have been called Cannons & Cutlasses? ;-)