//---------------------
//选择地图内的 随机位置
Vector2 SelectFreeTargetPos()
{
Vector2 pos = Maths.RndVector() * BattleScene.Heigth;
BattleScene.SceneSizeLimit(ref pos);
return(pos);
}
//不攻击了，没有武器 或者 投降了
void StopAttck()
{
//缓慢惯性移动
this.SetPosition(this.GetPosition() + NowDirection *
inertiaSpeed * 0.15f);
if (BattleScene.SceneSizeLimit(this.GetPosition()))
{ //出界就自动回来。
Vector2 returnDir = Vector2.Zero - this.GetPosition();
Maths.Normalize(ref returnDir);
TrackPos(this.GetPosition() + returnDir * 180f);
}
}
//选择要去的目标位置.
void SelectTargetPos()
{
if (LockShip != null && TrackAction.IsTracking == false)
{
Vector2 targetDir = LockShip.GetPosition() - this.GetPosition();
targetDir = new Vector2(targetDir.Y, -targetDir.X);
Maths.Normalize(ref targetDir);
//根据0～180的随机角度旋转targetDir
targetDir.TurnTo(targetDir, Maths.Rnd.Next(314) * 0.01f);
targetDir = targetDir * keepDisFromEnemy + LockShip.GetPosition();
BattleScene.SceneSizeLimit(ref targetDir);
TrackPos(targetDir);
}
}
//-----------------
//惯性移动
void InertiaMove()
{
if (TrackAction.IsTracking == false)
{
this.SetPosition(this.GetPosition() + NowDirection *
inertiaSpeed);
if (BattleScene.SceneSizeLimit(this.GetPosition()))
{ //出界就自动回来。
if (LockShip == null)
{
Vector2 returnDir = Vector2.Zero - this.GetPosition();
Maths.Normalize(ref returnDir);
TrackPos(this.GetPosition() + returnDir * 180f);
}
}
}
}