/// <summary>
/// 选择一个攻击目标
/// </summary>
/// <param name="self">自己</param>
/// <param name="canAttack">是否考虑必须可以攻击到</param>
/// <returns></returns>
public FightUnit SelectFightTarget(FightUnit self, bool canAttack)
{
if (self == null || self.IsDead)
{
EDebug.LogError("FightLogic.SelectFightTarget failed, fightunit is null or dead");
return(null);
}
int selIdx = -1;
float dis = float.MaxValue;
//先循环一遍看看有没有可以攻击的对象，如果没有，则不考虑是否无敌
int targetsCanBeAttackCnt = 0;
for (int idx = 0; idx < AllFighters.Count; ++idx)
{
FightUnit unit = AllFighters[idx];
if (!unit.CanBeAttack(self, false, true, true))
{
continue;
}
targetsCanBeAttackCnt++;
}
for (int idx = 0; idx < AllFighters.Count; ++idx)
{
FightUnit unit = AllFighters[idx];
if (!unit.CanBeAttack(self, 0 == targetsCanBeAttackCnt, !canAttack, false))
{
continue;
}
//计算距离
float gridDis = PathFinder.GridDis(self.GridPos, unit.GridPos);
if (gridDis < dis)
{
selIdx = idx;
dis = gridDis;
}
}
return((selIdx >= 0) ? AllFighters[selIdx] : null);
}