/// <summary>
/// 获取距离我最近的对手
/// </summary>
/// <param name="sprite"></param>
/// <returns></returns>
public XLSpriteBase getCloselyMatchSprite(XLSpriteBase sprite, XLSpriteBase ignoreSprite)
{
if (sprite == null)
{
return(null);
}
List <XLSpriteBase> matchSprites = null;
if (sprite.Country == Defaults.Country.Enemy)
{
matchSprites = _selfSoldiers;
}
else if (sprite.Country == Defaults.Country.Me || sprite.Country == Defaults.Country.Friend)
{
matchSprites = _enemySoldiers;
}
if (matchSprites == null)
{
return(null);
}
XLSpriteBase ret = null;
float retDistance = -1;
for (int i = 0; i < matchSprites.Count; i++)
{
XLSpriteBase matchSprite = matchSprites[i];
if (!matchSprite.isCanBeTarget())
{
continue;
}
// 如果对手就只有一个那就不用换目标了 && 更换目标
if (matchSprites.Count > 1 && matchSprite == ignoreSprite)
{
continue;
}
float matchDistance = Vector3.Distance(sprite.transform.position, matchSprite.transform.position);
if (ret == null || matchDistance < retDistance)
{
ret = matchSprite;
retDistance = matchDistance;
continue;
}
}
return(ret);
}
public void resume()
{
for (int i = 0; i < _selfSoldiers.Count; i++)
{
XLSpriteBase selfSpr = _selfSoldiers[i];
selfSpr.resume();
}
for (int i = 0; i < _enemySoldiers.Count; i++)
{
XLSpriteBase enemySpr = _enemySoldiers[i];
enemySpr.resume();
}
}
/// <summary>
/// 逻辑更新
/// </summary>
public override void update()
{
if (_target == null) // 是否没有目标
{
_host.walkStop();
_target = SpriteMgr.getInstance().getCloselyMatchSprite(_host, null);
if (_target != null)
{
_targetPostion = new Vector3(_target.transform.position.x, _target.transform.position.y, _target.transform.position.z);
_oldPositionCount = 0;
_dodgeStartPosition = new Vector3(_host.transform.position.x, _host.transform.position.y, _host.transform.position.z);
//设置寻路的目标点
_navmeshAgent.SetDestination(_targetPostion);
// 如果带转向就过于愣了，所以注视掉
// _host.transform.LookAt(new Vector3(_targetPostion.x, _host.transform.position.y, _targetPostion.z));
}
return;
}
// 没在避让
if (_dodgeFrameCount == 0)
{
_oldPositionCount++;
if (_oldPositionCount > CHECK_MOVE_FRAME_COUNT) // 数帧检测移动量
{
float moveDistance = Vector3.Distance(_host.transform.position, _dodgeStartPosition);
if (moveDistance < 3.0f) // 移动量太小
{
// 一半概率向左
if (Random.value < 0.5f)
{
_dodgeTargetPosition = _host.DodgeLeftPostion;
}
else // 一半概率向右
{
_dodgeTargetPosition = _host.DodgeRightPostion;
}
_navmeshAgent.SetDestination(_dodgeTargetPosition);
//转向
_host.transform.LookAt(new Vector3(_dodgeTargetPosition.x, _host.transform.position.y, _dodgeTargetPosition.z));
_dodgeFrameCount = DODGE_FRAME_COUNT_MAX;
}
_oldPositionCount = 0;
_dodgeStartPosition = new Vector3(_host.transform.position.x, _host.transform.position.y, _host.transform.position.z);
}
}
else // 避让中
{
_dodgeFrameCount--;
if (_dodgeFrameCount == 0)
{
_target = null;
return;
}
float dis = Vector3.Distance(_host.transform.position, _dodgeTargetPosition);
if (dis < 0.2)
{
_target = null;
return;
}
return;
}
// 判断目标距离<攻击距离的时候，就可以结束了
float hostToTargetDistance = Vector3.Distance(_host.transform.position, _targetPostion);
_host._data.AttckDistance = 4f;
if (hostToTargetDistance <= _host._data.AttckDistance)
{
_host.walkStop();
notifyEvent(EVENT_CHANGE_TO_ATTACK, _target);
return;
}
}
/// <summary>
/// 获取距离我最近的对手
/// </summary>
/// <param name="sprite"></param>
/// <returns></returns>
public XLSpriteBase getCloselyMatchSprite1(XLSpriteBase sprite, XLSpriteBase ignoreSprite)
{
if (sprite == null)
{
return(null);
}
List <XLSpriteBase> matchSprites = null;
if (sprite.Country == Defaults.Country.Enemy)
{
matchSprites = _selfSoldiers;
}
else if (sprite.Country == Defaults.Country.Me || sprite.Country == Defaults.Country.Friend)
{
matchSprites = _enemySoldiers;
}
if (matchSprites == null)
{
return(null);
}
XLSpriteBase ret = null;
float retDistance = -1;
List <float> distArray = new List <float>(matchSprites.Count);
//float[] distArray = new float[matchSprites.Count];
float maxDist = 100000f;
float totalHP = 0;
for (int i = 0; i < matchSprites.Count; i++)
{
XLSpriteBase matchSprite = matchSprites[i];
if (!matchSprite.isCanBeTarget())
{
distArray.Add(maxDist);
continue;
}
// 如果对手就只有一个那就不用换目标了 && 更换目标
if (matchSprites.Count > 1 && matchSprite == ignoreSprite)
{
distArray.Add(maxDist);
continue;
}
float matchDistance = Vector3.Distance(sprite.transform.position, matchSprite.transform.position);
distArray.Add(matchDistance);
totalHP += matchSprite._data.HP;
}
// 对距离进行排序，然后在距离最短的几个里面找一个血量最小的攻击
var sorted = distArray.Select((x, i) => new KeyValuePair <float, int>(x, i)).OrderBy(x => x.Key).ToList();
List <float> sortedDistArray = sorted.Select(x => x.Key).ToList();
List <int> idx = sorted.Select(x => x.Value).ToList();
float minRatio = 1;
//if (sprite._data.Country == Defaults.Country.Me) // 只有我方士兵才适用这种寻敌方式
if (true) // 双方士兵都用这种寻敌方式
{
//Debug.Log("xueliang--------");
for (int i = 0; i < Math.Min(8, distArray.Count); i++) // 以8人为小组单位，在里面选一个血量最小的士兵进行攻击。
{
float ratio = (float)matchSprites[idx[i]]._data.HP / (float)sprite._data.HP; // *UnityEngine.Random.Range(0.1f, 1);
if (ret == null || ratio < minRatio)
{
ret = matchSprites[idx[i]];
minRatio = ratio;
continue;
}
}
}
else
{
ret = matchSprites[idx[0]];
}
// 调试用的，用来显示最后有多少士兵存活，总共还剩多少血量
//string strTotal = String.Format("#.{0},HP={1}", matchSprites.Count, totalHP);
//if(matchSprites[0]._data.Country != Defaults.Country.Me)
// Debug.Log(strTotal);
return(ret);
}
