///<summary>
///Calculate the highest score for a unit
///</summary>
///<param name="unit">The unit to calculate the score for</param>
///<returns>Returns a HexScoreObject with the tile the unit should move to, and the score the move has</returns>
public HexScoreObject CalculateScore(Unit unit)
{
List <HexScoreObject> scoreList = new List <HexScoreObject>();
HexObject hex = unit.transform.parent.GetComponent <HexObject>();
//==============================================
//Step 1: Check the nearest neighbours
scoreList.AddRange(CheckNearestNeighbours(hex, unit));
//If step 1 failed (no player units next to the unit)
//Step 2: Check the neighbours further away
if (scoreList.Count == 0)
{
scoreList.AddRange(CheckFurtherNeighbours(hex, unit));
}
//Step 3: No one close to us, lets move towards enemies
if (scoreList.Count == 0)
{
scoreList.AddRange(CheckMoving(hex, unit));
}
//==============================================
HexScoreObject highestScore = null;
//Get the highest score
foreach (HexScoreObject scoreObject in scoreList)
{
if (highestScore == null)
{
highestScore = scoreObject;
}
if (scoreObject.score > highestScore.score)
{
highestScore = scoreObject;
}
}
return(highestScore);
}
///<summary>
///Execute the AI turn
///</summary>
public void ExecuteTurn()
{
HexScoreObject highestScore = null;
//Update the list to see if we lost any units
UpdateUnits();
List <HexScoreObject> scoreList = new List <HexScoreObject>();
//For each unit, see which tile is the best to go to
foreach (Unit unit in units)
{
HexScoreObject unitScore = CalculateScore(unit);
scoreList.Add(unitScore);
}
//Loop through the scores and grab the highest one
foreach (HexScoreObject scoreObject in scoreList)
{
if (highestScore == null)
{
highestScore = scoreObject;
}
if (scoreObject != null)
{
if (scoreObject.score > highestScore.score)
{
highestScore = scoreObject;
}
}
}
//There should always be a highest score, but we still check
if (highestScore != null)
{
//Check what we want to do, if the tile is empty, just move, if there is an enemy on it: Attack!
if (highestScore.hexObject.unit == null)
{
MoveUnit(highestScore.unit.transform.parent.GetComponent <HexObject>(), highestScore.hexObject);
}
else
{
//Do damage to the unit and check if the attacked unit has died
bool isDead = highestScore.hexObject.unit.Damage(grid.currentSelectedHex.unit.attack);
if (isDead)
{
//Update the units in the grid
grid.UpdateUnits();
//Bowmen do not move after killing a unit, others do
if (highestScore.unit.unitType != Unit.UnitType.BOWMAN)
{
MoveUnit(highestScore.unit.transform.parent.GetComponent <HexObject>(), highestScore.hexObject);
}
}
}
}
//End the turn
GetComponent <GameHandler>().NextTurn();
}
