public int[] StartEvaluation()
{
// ________________________________________ FIRST POINT __________________________________________________
// There is only one placed in the game so just randomize it because otherwise it only places where we examine first
if (pointsInGame.Count < 2)
{
System.Random rand = new System.Random();
IntVector2 random;
do
{
random = new IntVector2(rand.Next(0, 3) - 1, rand.Next(0, 3) - 1);
} while (random.x == 0 && random.y == 0);
return(LocalAIToGridPos(pointsInGame[0] + random));
}
// _____________________________________ DEFENSE EVAL __________________________________________
// It' only a defending mechanism so only checks for human pointsinrow
// try places where we surely have to place
// it has a smaller chance that it skips that position
SignInARow humThree = null, humFour = null;
SignInARow aiThree = null, aiFour = null;
int tillI = pointsInGame.Count;
float exponentialChance = Mathf.Pow(leaveOutChance, 1.55f);
for (int i = 0; i < tillI; i++)
{
List <SignInARow> list = gameField[pointsInGame[i].x, pointsInGame[i].y].signsInARow;
for (int k = 0; k < list.Count; k++)
{
// skip at random
if (rand.NextDouble() < exponentialChance)
{
continue;
}
int length = list[k].Length;
int blockCount = list[k].BlockCount();
if (length == 3 && blockCount == 0)
{
// Store it so if after this loop we don't find a four (we don't return) place there
if (list[k].Type == HumanType)
{
humThree = list[k];
}
else
{
aiThree = list[k];
}
}
else if (length == 4 && blockCount != 2)
{
// It prioritizes the fours so if it finds one place there
if (list[k].Type == HumanType)
{
humFour = list[k];
}
else // There is a 4 length that is AIType so place there
{
aiFour = list[k];
}
}
}
}
// First if there is a four type ai where we can place win the game
if (aiFour != null)
{
return(LocalAIToGridPos(aiFour.GetUnblockedPos()));
}
// If there is a four that is type of human we should really place there
if (humFour != null)
{
return(LocalAIToGridPos(humFour.GetUnblockedPos()));
}
// If there is a signinarow with aitype that is length of three decide which is better and return that
if (aiThree != null)
{
return(LocalAIToGridPos(WhichIsBetter(aiThree.GetBlockField1Pos(), aiThree.GetBlockField2Pos(), AIType)));
}
// If there is no three with AI type but there is one for the human decide which is better
if (humThree != null) // We are going to decide which position is better
{
return(LocalAIToGridPos(WhichIsBetter(humThree.GetBlockField1Pos(), humThree.GetBlockField2Pos(), AIType)));
}
// Come here is everything else fails
// ___________________ NORMAL EVAL _____________________________-
EvaluationResult result = new EvaluationResult();
try {
result = EvaluateField(gameField, AIType, 1, pointsInGame, int.MinValue, int.MaxValue);
} catch (Exception e) {
UnityEngine.Debug.Log(e.Message + "\n" + e.StackTrace);
}
return(LocalAIToGridPos(result.fieldPos));
}
