private Enemy FindTarget()
{
if (enemies.Count > 0)
{
Enemy nearestEnemy = enemies[0];
double nearestEnemyDistance = GameHelper.GetDistance(Position, nearestEnemy.Position);
foreach (var enemy in enemies)
{
double distance = GameHelper.GetDistance(Position, enemy.Position);
if (distance < nearestEnemyDistance)
{
nearestEnemy = enemy;
nearestEnemyDistance = distance;
}
}
if (nearestEnemyDistance < range)
{
return(nearestEnemy);
}
}
return(null);
}
private Tuple <Point, SnapAlignment> GetMoveAlongBorderResult(Wall wall)
{
double actualWidth = (wall.Center.X - wall.Position.X) * 2;
double actualHeight = (wall.Center.Y - wall.Position.Y) * 2;
double maxDistance = 22;
Point leftBorderPos = new Point(GameHelper.LeftOfGame, cursorPosition.Y - actualHeight / 2);
Point topBorderPos = new Point(cursorPosition.X - actualWidth / 2, GameHelper.TopOfGame);
Point rightBorderPos = new Point(GameHelper.RightOfGame - actualWidth, cursorPosition.Y - actualHeight / 2);
if (GameHelper.GetDistance(leftBorderPos, new Point(cursorPosition.X - (actualWidth / 2), cursorPosition.Y - (actualHeight / 2))) < maxDistance)
{
return(new Tuple <Point, SnapAlignment>(leftBorderPos, SnapAlignment.RightBottom));
}
if (GameHelper.GetDistance(topBorderPos, new Point(cursorPosition.X - (actualWidth / 2), cursorPosition.Y - (actualHeight / 2))) < maxDistance)
{
return(new Tuple <Point, SnapAlignment>(topBorderPos, SnapAlignment.RightBottom));
}
if (GameHelper.GetDistance(rightBorderPos, new Point(cursorPosition.X - (actualWidth / 2), cursorPosition.Y - (actualHeight / 2))) < maxDistance)
{
return(new Tuple <Point, SnapAlignment>(rightBorderPos, SnapAlignment.TopLeft));
}
return(null);
}
public override void Update()
{
base.Update();
if (currentEnemyTarget == null || currentEnemyTarget != null && currentEnemyTarget.Destroyed || GameHelper.GetDistance(Position, currentEnemyTarget.Position) > range)
{
projectileLauncher.Fire = false;
currentEnemyTarget = FindTarget();
}
else
{
projectileLauncher.Target = currentEnemyTarget.Collider.Center;
projectileLauncher.Fire = true;
}
projectileLauncher.Update();
}