/// Gets the next direction the caravane has to take
unsigned char TradeRoute::GetNextDir()
{
if(curPos == path.goal)
return REACHED_GOAL;
if(curRouteIdx >= path.route.size())
return INVALID_DIR;
Direction nextDir;
// Check if the route is still valid
if(gwg.CheckTradeRoute(curPos, path.route, curRouteIdx, player))
nextDir = path.route[curRouteIdx];
else
{
// If not, recalc it
uint8_t calculatedNextDir = RecalcRoute();
// Check if we found a valid direction
if(calculatedNextDir >= 6)
return calculatedNextDir; // If not, bail out
nextDir = Direction::fromInt(calculatedNextDir);
}
RTTR_Assert(nextDir == path.route[curRouteIdx]);
curRouteIdx++;
curPos = gwg.GetNeighbour(curPos, nextDir);
return nextDir.toUInt();
}
unsigned short World::GetSeaId(const unsigned harborId, const Direction dir) const
{
RTTR_Assert(harborId);
return harbor_pos[harborId].cps[dir.toUInt()].seaId;
}
void SetLeftTerrain(GameWorldGame& world, const MapPoint& pt, Direction dir, TerrainType t)
{
SetRightTerrain(world, pt, Direction(dir.toUInt() + 6 - 1), t);
}
