public override void GetVertexs(ref List <UIVertex> vertexs)
{
if (m_Poses.Count < 2)
{
return;
}
int count = m_Poses.Count;
Vector2 dir = Math2d.GetHorizontalDir((m_Poses[1] - m_Poses[0]).XY());
vertexs.Add(new UIVertex()
{
position = m_Poses[0].XY() - dir * width, color = color,
});
vertexs.Add(new UIVertex()
{
position = m_Poses[0].XY() + dir * width, color = color,
});
for (int i = 1; i < count - 1; i++)
{
dir = Math2d.GetHorizontalDir((m_Poses[i + 1] - m_Poses[i - 1]).XY());
vertexs.Add(new UIVertex()
{
position = m_Poses[i].XY() - dir * width, color = color,
});
vertexs.Add(new UIVertex()
{
position = m_Poses[i].XY() + dir * width, color = color
});
}
dir = Math2d.GetHorizontalDir((m_Poses[count - 1] - m_Poses[count - 2]).XY());
vertexs.Add(new UIVertex()
{
position = m_Poses[count - 1].XY() - dir * width, color = color,
});
vertexs.Add(new UIVertex()
{
position = m_Poses[count - 1].XY() + dir * width, color = color,
});
}
public override void OnUpdate()
{
MouseLeft();
// 路面创建测试
if (Input.GetKeyDown(KeyCode.K))
{
List <Vector3> points_out = new List <Vector3>();
List <Vector3> points_in = new List <Vector3>();
Vector3 dirr;
dirr = Math2d.GetHorizontalDir(positions[1] - positions[0]);
points_in.Add(positions[0] + dirr * 4);
points_out.Add(positions[0] - dirr * 4);
for (int i = 1; i < positions.Count - 1; i++)
{
dirr = Math2d.GetHorizontalDir(positions[i + 1] - positions[i - 1]);
points_in.Add(positions[i] + dirr * 4);
points_out.Add(positions[i] - dirr * 4);
}
dirr = Math2d.GetHorizontalDir(positions[positions.Count - 1] - positions[positions.Count - 2]);
points_in.Add(positions[positions.Count - 1] + dirr * 4);
points_out.Add(positions[positions.Count - 1] - dirr * 4);
for (int i = 0; i < positions.Count; i++)
{
outCurve.AddNode(points_out[i], c);
inCurve.AddNode(points_in[i], c);
centerCurve.AddNode(positions[i], c);
}
outCurve.AddCatmull_RomControl();
inCurve.AddCatmull_RomControl();
centerCurve.AddCatmull_RomControl();
for (int i = 0; i < outCurve.segmentList.Count; i++)
{
float add = 1f / 20;
for (float j = 0; j < 1; j += add)
{
Vector3 point = centerCurve.segmentList[i].GetPoint(j);
path.Add(point);
objs.Add(Utility.CreatPrimitiveType(PrimitiveType.Sphere, Color.red, point, 1));
//point = outCurve.segmentList[i].GetPoint(j);
//path.Add(point);
//objs.Add(Utility.CreatPrimitiveType(PrimitiveType.Sphere, point, 1, Color.red));
//point = inCurve.segmentList[i].GetPoint(j);
//path.Add(point);
//objs.Add(Utility.CreatPrimitiveType(PrimitiveType.Sphere, point, 1, Color.red));
}
}
CreateRoads(Terrain.activeTerrain, meshFilter, path, 6);
}
if (Input.GetKeyDown(KeyCode.C))
{
meshFilter.mesh.Clear();
objs.ForEach((a) => { Object.Destroy(a); });
objs.Clear();
outCurve = new SplineCurve();
inCurve = new SplineCurve();
centerCurve = new SplineCurve();
positions.Clear();
path.Clear();
}
if (Input.GetKeyDown(KeyCode.J))
{
Utility.SendRay(out hit, LayerMask.GetMask("Terrain"));
}
// 刷新地图
if (Input.GetKeyDown(KeyCode.L))
{
//TerrainUtility.Refresh();
}
}
/// <summary>
/// 根据传参 路径点信息 创建路面：
/// 0 --- 2
/// | |
/// 1 --- 3
/// </summary>
/// <param name="meshFilter">路面网格</param>
/// <param name="_roadPoints">路点</param>
/// <param name="_width">路面宽度</param>
public static void CreateRoads(Terrain terrain, MeshFilter meshFilter, List <Vector3> wayPoints, float _width = 5)
{
if (wayPoints.Count < 2)
{
return; // 路点数量不能低于2个
}
List <Vector3> _roadPoints = wayPoints; // 取出路径点
List <Vector3> vertice = new List <Vector3>(); // 顶点
List <int> triangles = new List <int>(); // 三角形排序
List <Vector2> uv = new List <Vector2>(); // uv排序
Vector3 dir = Math2d.GetHorizontalDir(_roadPoints[1], _roadPoints[0]); // 获取两点间的垂直向量
vertice.Add(_roadPoints[0] + dir * _width); // 添加初始顶点
vertice.Add(_roadPoints[0] - dir * _width);
uv.Add(Vector2.zero); // 添加初始顶点对应uv
uv.Add(Vector2.right);
for (int i = 1, count = _roadPoints.Count; i < count; i++)
{
// 添加由 路径点 生成的路面点集
dir = Math2d.GetHorizontalDir(_roadPoints[i], _roadPoints[i - 1]);
vertice.Add(_roadPoints[i] + dir * _width);
vertice.Add(_roadPoints[i] - dir * _width);
// 添加三jio形排序
triangles.Add(2 * i - 2);
triangles.Add(2 * i);
triangles.Add(2 * i - 1);
triangles.Add(2 * i);
triangles.Add(2 * i + 1);
triangles.Add(2 * i - 1);
// 添加uv排序
if (i % 2 == 1)
{
uv.Add(Vector2.up);
uv.Add(Vector2.one);
}
else
{
uv.Add(Vector2.zero);
uv.Add(Vector2.right);
}
}
List <float> roadHeights = PointsFitToTerrain(terrain, ref vertice); // 路面高度适配地形
//TerrainUtility.ChangeHeights(terrain, _roadPoints.ToArray(), roadHeights.ToArray()); // 将道路整平
meshFilter.mesh.Clear();
meshFilter.mesh.vertices = vertice.ToArray();
meshFilter.mesh.triangles = triangles.ToArray();
meshFilter.mesh.uv = uv.ToArray();
meshFilter.mesh.RecalculateBounds(); // 重置范围
meshFilter.mesh.RecalculateNormals(); // 重置法线
meshFilter.mesh.RecalculateTangents(); // 重置切线
}