private void DrawBezierCurve()
{
this.ContentGrid.Children.Remove(_bezierCanvas);
_bezierCanvas.Children.Clear();
BezierPoints.Clear();
var pointList = new List <Point>();
for (int i = 0; i <= _insertedPoint; i++)
{
pointList.Add(PointList[i].Point);
}
DrawCasteljau(pointList);
for (int i = 0; i < BezierPoints.Count - 1; i++)
{
var line = new Line
{
Stroke = Brushes.Red,
StrokeThickness = 1,
X1 = BezierPoints[i].X,
Y1 = BezierPoints[i].Y,
X2 = BezierPoints[i + 1].X,
Y2 = BezierPoints[i + 1].Y
};
_bezierCanvas.Children.Add(line);
}
this.ContentGrid.Children.Add(_bezierCanvas);
}
public void Load(EngineNS.IO.XndNode xndNode)
{
BezierPoints.Clear();
var att = xndNode.FindAttrib("_bezierPts");
if (att != null)
{
att.BeginRead();
switch (att.Version)
{
case 0:
{
int count;
att.Read(out count);
for (int i = 0; i < count; i++)
{
var bPt = att.ReadMetaObject() as BezierPoint;
if (bPt != null)
{
bPt.CalculateOpposite();
BezierPoints.Add(bPt);
}
}
att.Read(out mBezierWidth);
att.Read(out mBezierHeight);
}
break;
}
att.EndRead();
}
}
private void DrawCasteljau(List <Point> points)
{
Point tmp;
for (double t = 0; t <= 1; t += 0.01)
{
tmp = GetCasteljauPoint(points.Count - 1, 0, t);
BezierPoints.Add(new Point(tmp.X, tmp.Y));
}
}
public void Clear()
{
if (BezierPoints.Count > 0)
{
BezierPoints.Clear();
}
if (_lstCtrPoints.Count > 0)
{
_lstCtrPoints.Clear();
}
}
protected void CountBezierPoints(List <Vector3> pts)
{
int curveDivision = 10;
curvePoints = new List <Vector3>();
var bp = new BezierPoints();
Vector3 tempVec = new Vector3();
int current = 0;
var cameraMatrix = scene.ActiveCamera.ViewProjectionMatrix;
Action <int> getSize = (y) =>
{
var rectPts = pts.Skip(current).Take(y).Select(x => (cameraMatrix * new Vector4(x, 1.0)).ToNormalizedVector3()).ToList();
var xMin = rectPts.Select(x => x.X).Min();
var yMin = rectPts.Select(x => x.Y).Min();
var xMax = rectPts.Select(x => x.X).Max();
var yMax = rectPts.Select(x => x.Y).Max();
var size = new Vector2(xMax - xMin, yMax - yMin);
size.X = size.X * scene.ScreenSize.X;
size.Y = size.Y * scene.ScreenSize.Y;
curveDivision = (int)(System.Math.Max(size.X, size.Y) / 5);
curveDivision = System.Math.Min(curveDivision, 500);
};
Action <double> berenstein4Points = (x) =>
{
double x2 = x * x;
double x3 = x2 * x;
double x11 = (1 - x);
double x12 = x11 * (1 - x);
double x13 = x12 * (1 - x);
tempVec.X = bp.p0.X * x13 + 3 * bp.p1.X * x12 * x
+ 3 * bp.p2.X * x2 * x11 + bp.p3.X * x3;
tempVec.Y = bp.p0.Y * x13 + 3 * bp.p1.Y * x12 * x
+ 3 * bp.p2.Y * x2 * x11 + bp.p3.Y * x3;
tempVec.Z = bp.p0.Z * x13 + 3 * bp.p1.Z * x12 * x
+ 3 * bp.p2.Z * x2 * x11 + bp.p3.Z * x3;
curvePoints.Add(tempVec);
};
Action <double> berenstein3Points = (x) =>
{
double x2 = x * x;
double x11 = (1 - x);
double x12 = x11 * (1 - x);
tempVec.X = bp.p0.X * x12 + 2 * bp.p1.X * x11 * x
+ bp.p2.X * x2;
tempVec.Y = bp.p0.Y * x12 + 2 * bp.p1.Y * x11 * x
+ bp.p2.Y * x2;
tempVec.Z = bp.p0.Z * x12 + 2 * bp.p1.Z * x11 * x
+ bp.p2.Z * x2;
curvePoints.Add(tempVec);
};
int max = pts.Count;
while (current + 4 <= max)
{
bp.p0 = pts[current];
bp.p1 = pts[current + 1];
bp.p2 = pts[current + 2];
bp.p3 = pts[current + 3];
getSize(4);
for (int i = 0; i <= curveDivision; i++)
{
berenstein4Points(i / (double)curveDivision);
}
current += 3;
}
if (current < max - 1)
{
if (max - 1 - current == 2)
{
bp.p0 = pts[current];
bp.p1 = pts[current + 1];
bp.p2 = pts[current + 2];
getSize(3);
for (int i = 0; i <= curveDivision; i++)
{
berenstein3Points(i / (double)curveDivision);
}
}
else
{
curvePoints.Add(pts[current]);
curvePoints.Add(pts[current + 1]);
}
}
}
private void OnScene(SceneView sceneview)
{
BezierPoints bezierPoints = target as BezierPoints;
if (target != null && bezierPoints.gameObject.activeSelf)
{
if (bezierPoints == null || bezierPoints.CurvesCount == 0)
{
return;
}
if (!hideTools)
{
for (int i = 0; i < bezierPoints.CurvesCount; i++)
{
EditorGUI.BeginChangeCheck();
Vector3 endPosition1 = bezierPoints.getEndpoint1(i);
Vector3 endPosition2 = bezierPoints.getEndpoint2(i);
Vector3 controlPosition1 = bezierPoints.getControlPoint1(i);
Vector3 controlPosition2 = bezierPoints.getControlPoint2(i);
Quaternion startRotation = bezierPoints.getStartRotation(i);
Quaternion endRotation = bezierPoints.getEndRotation(i);
Handles.color = Color.green;
Handles.DrawLine(endPosition1, endPosition2);
Handles.color = Color.red;
Handles.DrawLine(endPosition1, controlPosition1);
Handles.DrawLine(endPosition2, controlPosition2);
Handles.DrawLine(controlPosition1, controlPosition2);
endPosition1 = Handles.PositionHandle(endPosition1, Quaternion.identity);
endPosition2 = Handles.PositionHandle(endPosition2, Quaternion.identity);
controlPosition1 = Handles.PositionHandle(controlPosition1, Quaternion.identity);
controlPosition2 = Handles.PositionHandle(controlPosition2, Quaternion.identity);
startRotation = Handles.RotationHandle(startRotation, endPosition1);
endRotation = Handles.RotationHandle(endRotation, endPosition2);
//Draw handle
Handles.DrawBezier(endPosition1, endPosition2, controlPosition1, controlPosition2, bezierPoints.lineColor, null, 5);
GUIStyle style = new GUIStyle();
style.fontSize = (Mathf.Clamp(Mathf.RoundToInt((endPosition1 - endPosition2).magnitude * (10 - Mathf.RoundToInt(Vector3.Distance(Camera.current.transform.position, (endPosition1 + endPosition2) / 2)))),
25, Mathf.RoundToInt((endPosition1 - endPosition2).magnitude)));
//Handles.Label((endPosition1 + endPosition2 + controlPosition1 + controlPosition2) / 4, i.ToString(), style);
Handles.BeginGUI();
Vector3 pos = (endPosition1 + endPosition2 + controlPosition1 + controlPosition2) / 4;
Vector2 pos2D = HandleUtility.WorldToGUIPoint(pos);
GUI.Label(new Rect(pos2D.x, pos2D.y, 100, 100), i.ToString(), style);
Handles.EndGUI();
//Handles.DrawBezier(endPosition1, endPosition2, controlPosition1, controlPosition2, Color.white, null, 2f);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(bezierPoints, "Beizer point changed");
bezierPoints.setEndPoint1(i, endPosition1);
bezierPoints.setEndPoint2(i, endPosition2);
bezierPoints.setControlPoint1(i, controlPosition1);
bezierPoints.setControlPoint2(i, controlPosition2);
bezierPoints.setStartRotation(i, startRotation);
bezierPoints.setEndRotation(i, endRotation);
}
}
}
Handles.color = bezierPoints.lineColor;
}
}
public override void OnInspectorGUI()
{
BezierPoints bezierPoints = (BezierPoints)target;
bezierPoints.lineColor = EditorGUILayout.ColorField("Line Color", bezierPoints.lineColor);
if (GUILayout.Button("Clear all curves"))
{
clearFoldedPrefs(bezierPoints.CurvesCount);
Undo.RecordObject(bezierPoints, "Cleared beizer curves");
bezierPoints.clearAll();
}
GUILayout.BeginHorizontal();
bezierPoints.autoLerp = EditorGUILayout.Toggle("Auto lerp", bezierPoints.autoLerp);
bezierPoints.lerpBackwards = EditorGUILayout.Toggle("Lerp backwards", bezierPoints.lerpBackwards);
GUILayout.EndHorizontal();
bezierPoints.looping = EditorGUILayout.Toggle("Looping", bezierPoints.looping);
EditorGUILayout.Space();
//add curve button
if (GUILayout.Button("Add Beizer curve"))
{
setFoldedPref(bezierPoints.CurvesCount, false);
Undo.RecordObject(bezierPoints, "Added beizer curve");
bezierPoints.addBeizeCurve();
}
//if points exists
if (bezierPoints.CurvesCount > 0)
{
//slider for lerp value
bezierPoints.lerpValue = EditorGUILayout.Slider("Lerp Value", bezierPoints.lerpValue, 0, 1);
//show all points for each curve
for (int i = 0; i < bezierPoints.CurvesCount; i++)
{
//Debug.Log(EditorPrefs.HasKey("folded" + (i / 2)) + " : " + i);
setFoldedPref(i, EditorGUILayout.Foldout(EditorPrefs.GetBool("folded" + (i)), "Beizer curve " + i, true));
if (EditorPrefs.HasKey("folded" + (i)) && EditorPrefs.GetBool("folded" + (i)))
{
EditorGUI.indentLevel++;
EditorGUI.BeginChangeCheck();
Vector3 endPoint1 = EditorGUILayout.Vector3Field("End Point 1", bezierPoints.getEndpoint1(i));
Vector3 endPoint2 = EditorGUILayout.Vector3Field("End Point 2", bezierPoints.getEndpoint2(i));
Vector3 controlPoint1 = EditorGUILayout.Vector3Field("Control Point 1", bezierPoints.getControlPoint1(i));
Vector3 controlPoint2 = EditorGUILayout.Vector3Field("Control Point 2", bezierPoints.getControlPoint2(i));
GUILayout.BeginHorizontal();
AnimationCurve animCurve = EditorGUILayout.CurveField("Speed curve", bezierPoints.getAnimationCurve(i));
float speedMultiplier = EditorGUILayout.FloatField("Speed Multiplier", bezierPoints.getCurveMultiplier(i));
GUILayout.EndHorizontal();
EditorGUILayout.Space();
Quaternion startRotation = Quaternion.Euler(EditorGUILayout.Vector3Field("Start Rotation", bezierPoints.getStartRotation(i).eulerAngles));
Quaternion endRotation = Quaternion.Euler(EditorGUILayout.Vector3Field("End Rotation", bezierPoints.getEndRotation(i).eulerAngles));
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(bezierPoints, "Changed point position");
bezierPoints.setEndPoint1(i, endPoint1);
bezierPoints.setEndPoint2(i, endPoint2);
bezierPoints.setControlPoint1(i, controlPoint1);
bezierPoints.setControlPoint2(i, controlPoint2);
bezierPoints.setStartRotation(i, startRotation);
bezierPoints.setEndRotation(i, endRotation);
bezierPoints.setAnimationCurve(i, animCurve);
bezierPoints.setCurveMultiplier(i, Mathf.Clamp(speedMultiplier, 0.1f, int.MaxValue));
}
EditorGUI.indentLevel--;
GUILayout.BeginHorizontal();
if (GUILayout.Button("Clear"))
{
removeFoldedPrefAt(i, bezierPoints.CurvesCount);
Undo.RecordObject(bezierPoints, "Removed curve");
bezierPoints.removeCurve(i);
}
if (bezierPoints.CurvesCount > i + 1)
{
if (GUILayout.Button("Snap to next"))
{
Undo.RecordObject(bezierPoints, "Snap curve to next");
bezierPoints.setEndPoint2(i, bezierPoints.getEndpoint1(i + 1));
}
}
else
{
GUI.enabled = false;
GUILayout.Button("Snap to next");
GUI.enabled = true;
}
GUILayout.EndHorizontal();
}
}
//clear all curves
if (GUILayout.Button("Clear all curves"))
{
clearFoldedPrefs(bezierPoints.CurvesCount);
Undo.RecordObject(bezierPoints, "Cleared beizer curves");
bezierPoints.clearAll();
}
}
}
