private static void ConnectStartToGraph()
{
if (randomizationError)
{
return;
}
Log("Attaching start to graph...");
tm.pm = new ProgressionManager(
RandomizerState.InProgress
);
im.ResetReachableLocations();
vm.ResetReachableLocations();
tm.ResetReachableTransitions();
tm.pm.Add(startProgression);
{ // keeping local variables out of the way
DirectedTransitions d = new DirectedTransitions(rand);
d.Add(startTransition);
string transition2 = tm.ForceTransition(d);
if (transition2 is null) // this should happen extremely rarely, but it has to be handled
{
Log("No way out of start?!?");
Log("Was the start transition already placed? " + TransitionManager.transitionPlacements.ContainsKey(startTransition));
randomizationError = true;
return;
}
tm.PlaceTransitionPair(startTransition, transition2);
}
while (true)
{
if (!RandomizerMod.Instance.Settings.RandomizeSkills)
{
// it is essentially impossible to generate a transition randomizer without one of these accessible
if (tm.pm.CanGet("Mantis_Claw") || tm.pm.CanGet("Mothwing_Cloak") || tm.pm.CanGet("Shade_Cloak"))
{
return;
}
}
else if (im.FindNextLocation(tm.pm) != null)
{
return;
}
tm.UnloadReachableStandby();
List <string> placeableTransitions = tm.reachableTransitions.Intersect(tm.unplacedTransitions.Union(tm.standbyTransitions.Keys)).ToList();
if (!placeableTransitions.Any())
{
Log("Could not connect start to map--ran out of placeable transitions.");
foreach (string t in tm.reachableTransitions)
{
Log(t);
}
randomizationError = true;
return;
}
DirectedTransitions directed = new DirectedTransitions(rand);
directed.Add(placeableTransitions);
if (tm.ForceTransition(directed) is string transition1)
{
string transition2 = directed.GetNextTransition(transition1);
tm.PlaceTransitionPair(transition1, transition2);
}
else
{
Log("Could not connect start to map--ran out of progression transitions.");
randomizationError = true;
return;
}
}
}
