public Tuple <Army, int> Simulate(Army firstTurn, int dragons, int lords)
{
if (dragons < 0)
{
throw new ArgumentException();
}
if (lords < 0)
{
throw new ArgumentException();
}
var sevenKingdomArmyStatus = new SevenKingdomArmyStatus(dragons);
var whiteWalkerArmyStatus = new WhiteWalkerArmyStatus(lords);
int turnsAmount = 0;
Army currentTurn = firstTurn;
var strategyPicker = new StrategyPicker();
while (sevenKingdomArmyStatus.IsAlive() && whiteWalkerArmyStatus.IsAlive())
{
var strategy = strategyPicker.GetStrategy(currentTurn);
strategy.RunNextTurn(sevenKingdomArmyStatus, whiteWalkerArmyStatus);
currentTurn = currentTurn == Army.SevenKingdom
? Army.WhiteWalker
: Army.SevenKingdom;
turnsAmount++;
}
return(sevenKingdomArmyStatus.IsAlive()
? new Tuple <Army, int>(Army.SevenKingdom, turnsAmount)
: new Tuple <Army, int>(Army.WhiteWalker, turnsAmount));
}
public void RunNextTurn(SevenKingdomArmyStatus sevenKingdomArmyStatus,
WhiteWalkerArmyStatus whiteWalkerArmyStatus)
{
var damageLeft = sevenKingdomArmyStatus.Damage();
var possibleAmountOfLordsToBeKilled = damageLeft / WhiteWalkerArmyStatus.DefenceLord;
var actualAmountOfLordsToBeKilled = Math.Min(possibleAmountOfLordsToBeKilled,
whiteWalkerArmyStatus.Lords);
damageLeft -= WhiteWalkerArmyStatus.DefenceLord * actualAmountOfLordsToBeKilled;
whiteWalkerArmyStatus.Lords -= actualAmountOfLordsToBeKilled;
var possibleAmountWalkersKilled = damageLeft / WhiteWalkerArmyStatus.DefenceWalker;
var actualAmountWalkersKilled = Math.Min(possibleAmountWalkersKilled,
whiteWalkerArmyStatus.Walkers);
whiteWalkerArmyStatus.Walkers -= actualAmountWalkersKilled;
}
public void RunNextTurn(SevenKingdomArmyStatus sevenKingdomArmyStatus,
WhiteWalkerArmyStatus whiteWalkerArmyStatus)
{
var damageLeft = whiteWalkerArmyStatus.Damage();
var possibleAmountOfDragonsToBeKilled = damageLeft / SevenKingdomArmyStatus.DefenceDragon;
var actualAmountOfDragonsKilled = Math.Min(possibleAmountOfDragonsToBeKilled,
sevenKingdomArmyStatus.Dragons);
damageLeft -= SevenKingdomArmyStatus.DefenceDragon * actualAmountOfDragonsKilled;
sevenKingdomArmyStatus.Dragons -= actualAmountOfDragonsKilled;
var possibleAmountInfantryKilled = damageLeft / SevenKingdomArmyStatus.DefenceInfantry;
var actualAmountInfantryKilled = Math.Min(possibleAmountInfantryKilled,
sevenKingdomArmyStatus.Infantry);
sevenKingdomArmyStatus.Infantry -= actualAmountInfantryKilled;
}