// Execute an order. This function takes num_ships off the source_planet,
// puts them into a newly-created fleet, calculates the distance to the
// destination_planet, and sets the fleet's total trip time to that
// distance. Checks that the given player_id is allowed to give the given
// order. If the order was carried out without any issue, and everything is
// peachy, then true is returned. Otherwise, false is returned.
bool GameState::ExecuteOrder(const GameDesc& desc,
int playerID,
int sourcePlanet,
int destinationPlanet,
int numShips) {
PlanetState& source = planets[sourcePlanet];
if (source.owner != playerID ||
numShips > source.numShips ||
numShips < 0) {
return false;
}
if(numShips == 0)
// just ignore but dont error
return true;
source.numShips -= numShips;
int distance = desc.Distance(sourcePlanet, destinationPlanet);
Fleet f(source.owner,
numShips,
sourcePlanet,
destinationPlanet,
distance,
distance);
fleets.push_back(f);
return true;
}
// Execute an order. This function takes num_ships off the source_planet,
// puts them into a newly-created fleet, calculates the distance to the
// destination_planet, and sets the fleet's total trip time to that
// distance. Checks that the given player_id is allowed to give the given
// order. If the order was carried out without any issue, and everything is
// peachy, then true is returned. Otherwise, false is returned.
bool GameState::ExecuteOrder(const GameDesc& desc,
int playerID,
int sourcePlanet,
int destinationPlanet,
int numShips) {
if (numShips <= 0 ||
sourcePlanet < 0 || planets.size() <= (Planets::size_type)sourcePlanet ||
destinationPlanet < 0 || planets.size() <= (Planets::size_type)destinationPlanet ||
sourcePlanet == destinationPlanet) {
return false;
}
PlanetState& source = planets[sourcePlanet];
if (source.owner != playerID ||
numShips > source.numShips) {
return false;
}
source.numShips -= numShips;
int distance = desc.Distance(sourcePlanet, destinationPlanet);
Fleet f(source.owner,
numShips,
sourcePlanet,
destinationPlanet,
distance,
distance);
bool done = false;
for (Fleets::iterator fi = fleets.begin(); !done && (fi != fleets.end()); ++fi) {
if (fi->owner == playerID &&
fi->sourcePlanet == sourcePlanet &&
fi->destinationPlanet == destinationPlanet &&
fi->turnsRemaining == distance) {
fi->numShips += numShips;
done = true;
}
}
if (!done) {
fleets.push_back(f);
}
return true;
}
