public override void OnInspectorGUI()
{
Color baseCol = GUI.color;
spline = (CatmullRomSpline)target;
CheckRotations();
EditorGUI.BeginChangeCheck();
{
EditorGUILayout.Space();
Blue_BoldLable("Spline 基本设定");
SplineBasicSettings();
EditorGUILayout.Space();
ParentingSplineUI();
AddCatmullRomSegment();
EditorGUILayout.Space();
if (Button("Export as mesh"))
{
string path = EditorUtility.SaveFilePanelInProject("Save river mesh", "", "asset", "Save river mesh");
if (path.Length != 0 && spline.meshfilter.sharedMesh != null)
{
AssetDatabase.CreateAsset(spline.meshfilter.sharedMesh, path);
AssetDatabase.Refresh();
spline.GenerateSpline();
}
}
}
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(spline, "Spline changed");
spline.GenerateSpline();
}
EditorGUILayout.Space();
if (spline.beginningSpline)
{
if (!spline.beginningSpline.endingChildSplines.Contains(spline))
{
spline.beginningSpline.endingChildSplines.Add(spline);
}
}
if (spline.endingSpline)
{
if (!spline.endingSpline.beginnigChildSplines.Contains(spline))
{
spline.endingSpline.beginnigChildSplines.Add(spline);
}
}
}
private void DrawCurve(List <Vector2> controlPoints, int steps, int t)
{
if (controlPoints.Count >= 2)
{
List <Vector2> points = CatmullRomSpline.GenerateSpline(controlPoints, steps, t);
Vector3 previousPoint = points[0];
for (int i = 1; i < points.Count; i++)
{
Gizmos.DrawLine(previousPoint, points[i]);
previousPoint = points[i];
}
}
}
private void GenerateRiverBed(float[,] heightMap)
{
int resolution = heightMap.GetLength(0);
// River width
int riverWidth = (int)(resolution * riverWidthPercent) - 2;
int maxRiverVariance = (int)(riverWidth * 0.17f);
// Shore
int shoreWidth = (int)(resolution * 0.1f);
int maxShoreVariance = (int)(shoreWidth * 0.15f);
// River indices
int startOfRiver = (resolution - riverWidth) / 2;
int endOfRiver = (resolution + riverWidth) / 2;
// Generate control points
List <Vector2> mainControlPoints = GenerateControlPoints(resolution, maxRiverVariance, 2);
List <Vector2> leftControlPoints = AdjustControlPoints(mainControlPoints, startOfRiver);
List <Vector2> rightControlPoints = AdjustControlPoints(mainControlPoints, endOfRiver);
// Spline Curves
List <Vector2> leftSplineCurve = CatmullRomSpline.GenerateSpline(leftControlPoints);
List <Vector2> rightSplineCurve = CatmullRomSpline.GenerateSpline(rightControlPoints);
// Interpolate rest of curve
var leftRiver = ConnectRiverBends(leftSplineCurve);
var rightRiver = ConnectRiverBends(rightSplineCurve);
// Set left boundary
foreach (Vector2Int leftBoundary in leftRiver)
{
heightMap[leftBoundary.x, leftBoundary.y] = riverDepth;
}
// Color left half of river, starting from center
for (int y = 0; y < resolution; y++)
{
for (int i = resolution / 2; heightMap[i, y] != riverDepth; i--)
{
heightMap[i, y] = riverDepth;
}
}
// Set right boundary
foreach (Vector2Int rightBoundary in rightRiver)
{
heightMap[rightBoundary.x, rightBoundary.y] = riverDepth;
}
// Color until we hit right boundary, start from center
for (int y = 0; y < resolution; y++)
{
for (int i = resolution / 2 + 1; heightMap[i, y] != riverDepth; i++)
{
heightMap[i, y] = riverDepth;
}
}
}
private void DrawCurve(List <Vector3> controlPoints, int steps, int t)
{
if (controlPoints.Count >= 2)
{
List <Vector3> points = CatmullRomSpline.GenerateSpline(controlPoints, steps, t);
Vector3 previousPoint = points[0];
for (int i = 1; i < points.Count; i++)
{
var rasterization = BresenhamLine.PlotLine(ToVector2Int(previousPoint), ToVector2Int(points[i]));
foreach (var p in rasterization)
{
Gizmos.DrawCube(ToVector3(p), Vector3.one * 0.2f);
}
previousPoint = points[i];
}
}
}
void CheckRotations()
{
bool nan = false;
//1. Create Rotation List
if (spline.controlPointHandleRotations == null)
{
spline.controlPointHandleRotations = new List <Quaternion> ();
nan = true;
}
//1. Add Rotation ---- make controlPoints == rotationPoints
if (spline.controlPoints.Count > spline.controlPointHandleRotations.Count)
{
nan = true;
for (int i = 0; i < spline.controlPoints.Count - spline.controlPointHandleRotations.Count; i++)
{
spline.controlPointHandleRotations.Add(Quaternion.identity);
}
}
// Reset Rotations
for (int i = 0; i < spline.controlPointHandleRotations.Count; i++)
{
//chech if the element is null
if (float.IsNaN(spline.controlPointHandleRotations [i].x) || float.IsNaN(spline.controlPointHandleRotations [i].y) || float.IsNaN(spline.controlPointHandleRotations [i].z) || float.IsNaN(spline.controlPointHandleRotations [i].w))
{
spline.controlPointHandleRotations [i] = Quaternion.identity;
nan = true;
}
//Check if all element are 0
if (spline.controlPointHandleRotations [i].x == 0 && spline.controlPointHandleRotations [i].y == 0 && spline.controlPointHandleRotations [i].z == 0 && spline.controlPointHandleRotations [i].w == 0)
{
spline.controlPointHandleRotations [i] = Quaternion.identity;
nan = true;
}
//spline.controlPointsRotations [i] = Quaternion.Euler(spline.controlPointsRotations [i].eulerAngles);
}
if (nan)
{
spline.GenerateSpline();
}
}