private int CalculateFitness(RCT2RideData candidate)
{
int fitness = 0;
//Get Displacement to End & Max Y Displacement
Vector3 prevWorldPos = new Vector3(0.0f, 0.0f, 0.0f);
int worldDirectionChange = 0;
double maxVarianceFromStart = 0;
int maxYVariance = 0;
for (int i = 0; i < candidate.TrackData.TrackData.Count; i++)
{
RCT2TrackElements.RCT2TrackElement currentElement = candidate.TrackData.TrackData[i].TrackElement;
RCT2TrackElementProperty property = RCT2TrackElements.TrackElementPropertyMap[currentElement];
Vector3 worldDisplacement = candidate.TrackData.LocalDisplacementToWorld(property.Displacement, worldDirectionChange);
//Update World Position Changes
prevWorldPos += worldDisplacement;
if (prevWorldPos.Y >= maxYVariance)
{
maxYVariance = (int)prevWorldPos.Y;
}
if (prevWorldPos.Length() >= maxVarianceFromStart)
{
maxVarianceFromStart = prevWorldPos.Length();
}
//Update World Direction Changes
worldDirectionChange = candidate.TrackData.UpdateRotation(worldDirectionChange, property.DirectionChange);
}
maxYVariance -= (int)prevWorldPos.Y;
maxVarianceFromStart -= prevWorldPos.Length();
Vector3 displacementToEnd = new Vector3(0, 0, 0);
displacementToEnd.X = Math.Abs(prevWorldPos.X);
displacementToEnd.Y = Math.Abs(prevWorldPos.Y);
displacementToEnd.Z = Math.Abs(prevWorldPos.Z);
//Console.WriteLine(maxYDisplacement);
double displacementToEndLength = displacementToEnd.Length();
fitness = (int)(((candidate.ExcitementTimesTen / (1 + candidate.NauseaTimesTen)) + /*maxVarianceFromStart*/ +maxYVariance) * 1000);
return(fitness);
}
private RCT2TrackData GenerateWoodenRollerCoasterTrack()
{
RCT2TrackData trackData = new RCT2TrackData();
trackData.TrackData = new List <RCT2TrackPiece>();
Random random = new Random();
//Begin Station
trackData.TrackData.Add(new RideData.RCT2TrackPiece()
{
TrackElement = RideData.RCT2TrackElements.RCT2TrackElement.BeginStation,
Qualifier = new RideData.RCT2Qualifier()
{
IsChainLift = false,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
}
});
//End Station
trackData.TrackData.Add(new RideData.RCT2TrackPiece()
{
TrackElement = RideData.RCT2TrackElements.RCT2TrackElement.EndStation,
Qualifier = new RideData.RCT2Qualifier()
{
IsChainLift = false,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
}
});
//TODO: Marking valid track pieces as invalid
// The prior connection check is failing
for (int i = 2; i < length; i++)
{
List <RCT2TrackElements.RCT2TrackElement> candidates = RCT2TrackElements.FindValidSuccessors(whitelistedTracks, trackData.TrackData[i - 1].TrackElement);
bool reselect = false;
do
{
//If we have no candidates left
if (candidates.Count <= 0)
{
return(null);
//if (steppedBack)
//{
// return null;
//}
//if (i < 3)
//{
// throw new Exception("ERROR: Unable to create Coaster - Index stepped back too far");
//}
////Console.WriteLine("ERROR: No Valid Track Pieces Found, Stepping back and starting again");
//trackData.TrackData.Remove(trackData.TrackData.Last());
//i -= 2;
//steppedBack = true;
//TODO - Make this a better solution, right now it's a hack to make it work
//break;
}
//Select our successor and remove it from the potential pool
RCT2TrackElements.RCT2TrackElement successor = candidates[random.Next(candidates.Count)];
candidates.Remove(successor);
RCT2TrackElementProperty property = RCT2TrackElements.TrackElementPropertyMap[successor];
//Console.WriteLine($"\tAttempting Track Piece {successor.ToString()}");
RCT2Qualifier qualifier;
//Create our qualifier bit
if (property.Displacement.Y > 0)
{
//TODO: Check if it should be a chain
// Perform a lookup to see if previous track was chain lift
// Or if our current velocity would be negative/0
// If not possible, do a lookup to see if previous X tracks contained a decline, if not we need one
bool chainLift = trackData.TrackData[i - 1].Qualifier.IsChainLift;
//If our current velocity would be negative or zero, we need a chain lift
qualifier = new RCT2Qualifier()
{
IsChainLift = true,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
};
}
else
{
qualifier = new RCT2Qualifier()
{
IsChainLift = false,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
};
}
//Add to track
trackData.TrackData.Add(new RCT2TrackPiece()
{
TrackElement = successor, Qualifier = qualifier
});
//If it's invalid
RCT2TrackData.InvalidityCode invalidityCode = trackData.CheckValidity();
if (invalidityCode != RCT2TrackData.InvalidityCode.Valid)
{
//Remove it and try again
reselect = true;
trackData.TrackData.Remove(trackData.TrackData.Last());
//Console.WriteLine($"\tInvalid Selection, Code: {invalidityCode.ToString()}");
}
else
{
reselect = false;
}
} while (reselect);
//Console.WriteLine($"{trackData.TrackData.Last().TrackElement.ToString()} Selected!");
}
//for (int i = 0; i < trackData.TrackData.Count(); i++)
//{
// Console.WriteLine("\t" + trackData.TrackData[i].TrackElement.ToString());
//}
return(trackData);
}
private RCT2RideData Mutation(RCT2RideData candidate)
{
//Console.WriteLine("------------");
//foreach (var track in candidate.TrackData.TrackData)
//{
// Console.WriteLine(track.TrackElement.ToString());
//}
bool hasExtraPiece = false;
for (int i = 2; i < candidate.TrackData.TrackData.Count(); i++)
{
if (random.NextDouble() <= mutationRate)
{
//Get possible candidates
RCT2RideData candidateCopy = new RCT2RideData(candidate);
List <RCT2TrackElements.RCT2TrackElement> candidateReplacements = RCT2TrackElements.FindValidSuccessors(whitelistedTracks, candidate.TrackData.TrackData[i - 1].TrackElement);
bool redo = false;
do
{
//If we're out of possible replacements
if (candidateReplacements.Count <= 0)
{
//Console.WriteLine("/////////////");
//foreach (var track in candidate.TrackData.TrackData)
//{
// Console.WriteLine(track.TrackElement.ToString());
//}
return(candidate);
}
//Construct our random element
RCT2TrackPiece randomElement = new RCT2TrackPiece();
randomElement.TrackElement = candidateReplacements[random.Next(candidateReplacements.Count)];
candidateReplacements.Remove(randomElement.TrackElement);
RCT2TrackElementProperty property = RCT2TrackElements.TrackElementPropertyMap[randomElement.TrackElement];
if (property.InputTrackDegree == RCT2TrackElementProperty.RCT2TrackDegree.Up25 ||
property.InputTrackDegree == RCT2TrackElementProperty.RCT2TrackDegree.Up60 ||
property.InputTrackDegree == RCT2TrackElementProperty.RCT2TrackDegree.Up90)
{
randomElement.Qualifier = new RCT2Qualifier()
{
IsChainLift = true,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
};
}
else
{
randomElement.Qualifier = new RCT2Qualifier()
{
IsChainLift = false,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
};
}
//Replace the existing element at that location with this
if (hasExtraPiece)
{
candidateCopy.TrackData.TrackData.RemoveAt(i + 1);
hasExtraPiece = false;
}
candidateCopy.TrackData.TrackData.RemoveAt(i);
if (randomElement.TrackElement == RCT2TrackElements.RCT2TrackElement.FlatToIncline25 ||
randomElement.TrackElement == RCT2TrackElements.RCT2TrackElement.Incline25)
{
candidateCopy.TrackData.TrackData.Insert(i, randomElement);
RCT2TrackPiece bridgeElement = new RCT2TrackPiece();
bridgeElement.TrackElement = RCT2TrackElements.RCT2TrackElement.Incline25ToFlat;
bridgeElement.Qualifier = new RCT2Qualifier()
{
IsChainLift = true,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
};
candidateCopy.TrackData.TrackData.Insert(i + 1, bridgeElement);
//Console.WriteLine($"\tAttempted to Mutate into {randomElement.TrackElement.ToString()}");
hasExtraPiece = true;
}
else if (randomElement.TrackElement == RCT2TrackElements.RCT2TrackElement.FlatToDecline25 ||
randomElement.TrackElement == RCT2TrackElements.RCT2TrackElement.Decline25)
{
candidateCopy.TrackData.TrackData.Insert(i, randomElement);
RCT2TrackPiece bridgeElement = new RCT2TrackPiece();
bridgeElement.TrackElement = RCT2TrackElements.RCT2TrackElement.Decline25ToFlat;
bridgeElement.Qualifier = new RCT2Qualifier()
{
IsChainLift = false,
TrackColourSchemeNumber = 0,
TrackRotation = RideData.RCT2Qualifier.RCT2QualifierRotation.Zero,
AtTerminalStation = false,
StationNumber = 0
};
candidateCopy.TrackData.TrackData.Insert(i + 1, bridgeElement);
//Console.WriteLine($"\tAttempted to Mutate into {randomElement.TrackElement.ToString()}");
hasExtraPiece = true;
}
else
{
candidateCopy.TrackData.TrackData.Insert(i, randomElement);
}
//If it makes the track invalid, try again
if (candidateCopy.TrackData.CheckValidity() != RCT2TrackData.InvalidityCode.Valid)
{
redo = true;
}
else
{
redo = false;
successfulMutations++;
hasExtraPiece = false;
}
} while (redo);
}
}
return(candidate);
}
