コード例 #1
0
        private Vector2 GetDir(OrthoBasis basis, bool useMajor, Vector2 previousDir)
        {
            Vector2 dir = (useMajor ? basis.Major : basis.Minor);

            if (previousDir == Vector2.zero || Vector2.Dot(previousDir, dir) >= 0.0f)
            {
                return(dir);
            }
            return(-dir);
        }
コード例 #2
0
 public OrthoBasis GetBasis(Vertex pos)
 {
     if (cachedBases.ContainsKey(pos))
     {
         return(cachedBases[pos]);
     }
     else
     {
         OrthoBasis b = GetBasisP(pos.Pos);
         cachedBases.Add(pos, b);
         return(b);
     }
 }
コード例 #3
0
        public OrthoBasis GetBasisP(Vector2 pos)
        {
            //Get surface data.
            float   height;
            Vector3 surfNorm;

            GetSurfaceData(pos, out height, out surfNorm);

            //Get the weight scale for each basis based on its distance.
            if (tempDists.Length < RoadOrthoBases.Count)
            {
                tempDists = new float[RoadOrthoBases.Count];
            }
            for (int i = 0; i < RoadOrthoBases.Count; ++i)
            {
                tempDists[i] = pos.Distance(RoadOrthoBases[i].Center) /
                               Mathf.Max(0.0001f, RoadOrthoBases[i].Importance);
            }
            float invSum = 1.0f / tempDists.Sum();


            //Now calculate the weighted average of the ortho bases.
            OrthoBasis ob = new OrthoBasis(Vector2.zero, Vector2.zero);

            for (int i = 0; i < RoadOrthoBases.Count; ++i)
            {
                float weight = 1.0f - (tempDists[i] * invSum);

                //Edge-case.
                if (RoadOrthoBases.Count == 1)
                {
                    weight = 1.0f;
                }

                OrthoBasis tempOB = RoadOrthoBases[i].GetOrthoBasis(pos, height, surfNorm);

                ob.Major += tempOB.Major * weight;
                ob.Minor += tempOB.Minor * weight;
            }

            return(ob);
        }