std::vector<int> GameState::getPath(int aSrc, int aTgt) const
{
if (grid_.offGrid(aSrc) || grid_.offGrid(aTgt)) return {};
Pathfinder pf;
pf.setNeighbors([&] (int aIndex) {return getOpenNeighbors(aIndex);});
pf.setGoal(aTgt);
return pf.getPathFrom(aSrc);
}
std::vector<int> GameState::getReachableHexes(const Unit &unit) const
{
std::vector<int> reachable;
// Flying units don't need a clear path.
if (unit.canFly()) {
for (int i = 0; i < grid_.size(); ++i) {
if (isHexFlyable(unit, i)) {
reachable.push_back(i);
}
}
}
else {
Pathfinder pf;
pf.setNeighbors([&] (int aIndex) {return getOpenNeighbors(aIndex);});
reachable = pf.getReachableNodes(unit.aHex, unit.type->moves);
}
return reachable;
}