public void InitFanShape(FanShape _this, Vector2 pos, Vector2 dir, float radius, int degree)
{
_this.mRadius = radius;
_this.mRegree = degree;
_this.mDir = dir;
_this.mDir.Normalize();
}
public bool IsColliderObj(FanShape _this, ObjBase obj)
{
var dif = obj.GetPosition() - _this.Pos;
var l = dif.LengthSquared();
if (l > _this.mRadius * _this.mRadius)
{
return(false);
}
// 如果两个点基本重合，也算命中了
if (l < 4.0f)
{
return(true);
}
dif.Normalize();
if (Vector2.Dot(_this.mDir, dif) < Math.Cos((float)Math.PI * _this.mRegree / 2 / 180))
{
return(false);
}
return(true);
}
public bool IsColliderZone(FanShape _this, Zone zone)
{
return(_this.CheckZoneDistance(zone, _this.mRadius));
}