public override string GetHandleName(int index)
{
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
GD.Print("Invalid Curve");
return("");
}
if (index < c.GetPointCount())
{
return(("Curve Point #") + index);
}
index = index - c.GetPointCount() + 1;
int idx = index / 2;
int t = index % 2;
String n = ("Curve Point #") + idx;
if (t == 0)
{
n += " In";
}
else
{
n += " Out";
}
return(n);
}
public void _CloseCurve()
{
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
return;
}
if (c.GetPointCount() < 2)
{
return;
}
c.AddPoint(c.GetPointPosition(0), c.GetPointIn(0), c.GetPointOut(0));
}
public override object GetHandleValue(int index)
{
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
GD.Print("Invalid curve");
return(null);
}
if (index < c.GetPointCount())
{
original = c.GetPointPosition(index);
return(original);
}
index = index - c.GetPointCount() + 1;
int idx = index / 2;
int t = index % 2;
Vector3 ofs;
if (t == 0)
{
ofs = c.GetPointIn(idx);
}
else
{
ofs = c.GetPointOut(idx);
}
original = ofs + c.GetPointPosition(idx);
return(ofs);
}
public override void SetHandle(int index, Camera camera, Vector2 point)
{
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
GD.Print("Invalid curve");
return;
}
Transform gt = path.GlobalTransform;
Transform gi = gt.AffineInverse();
Vector3 ray_from = camera.ProjectRayOrigin(point);
Vector3 ray_dir = camera.ProjectRayNormal(point);
// Setting curve point positions
if (index < c.GetPointCount())
{
var org = gt.Xform(original);
Plane pp = new Plane();
pp.Normal = camera.Transform.basis.GetColumn(2);
pp.D = pp.Normal.Dot(org);
Vector3?_inters = pp.IntersectRay(ray_from, ray_dir);
if (_inters != null)
{
Vector3 _nnInters = (Vector3)_inters;
if (plugin.snapEnabled)
{
_nnInters = _nnInters.Snapped(new Vector3(plugin.snapLength, plugin.snapLength, plugin.snapLength));
}
_nnInters = plugin.RestrictPoint(org, _nnInters);
Vector3 local = gi.Xform(_nnInters);
c.SetPointPosition(index, local);
}
return;
}
index = index - c.GetPointCount() + 1;
int idx = index / 2;
int t = index % 2;
var porig = gt.Xform(original);
Vector3 basePos = c.GetPointPosition(idx);
Plane p = new Plane();
p.Normal = camera.Transform.basis.GetColumn(2);
p.D = p.Normal.Dot(porig);
Vector3?inters = p.IntersectRay(ray_from, ray_dir);
// Setting curve in/out positions
if (inters != null)
{
Vector3 nnInters = (Vector3)inters;
if (!plugin.handleClicked)
{
origInLength = c.GetPointIn(idx).Length();
origOutLenght = c.GetPointOut(idx).Length();
plugin.SetHandleClicked(true);
}
Vector3 orig = gi.Xform(porig) - basePos;
Vector3 local = gi.Xform(nnInters) - basePos;
if (plugin.snapEnabled)
{
local = local.Snapped(new Vector3(plugin.snapLength, plugin.snapLength, plugin.snapLength));
}
local = plugin.RestrictPoint(orig, local);
if (t == 0)
{
c.SetPointIn(idx, local);
if (plugin.mirrorHandleAngle)
{
c.SetPointOut(idx, plugin.mirrorHandleLength ? -local : (-local.Normalized() * origOutLenght));
}
}
else
{
c.SetPointOut(idx, local);
if (plugin.mirrorHandleAngle)
{
c.SetPointIn(idx, plugin.mirrorHandleLength ? -local : (-local.Normalized() * origInLength));
}
}
}
}
public override void Redraw( )
{
Clear();
//GD.Print($"Redraw {GD.Randi()%100}");
var pathMaterial = gizmoPlugin.GetMaterial("path_material", this);
var pathThinMaterial = gizmoPlugin.GetMaterial("path_thin_material", this);
var handlesMaterial = gizmoPlugin.GetMaterial("handles", this);
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
GD.Print("Invalid curve");
return;
}
var v3a = c.Tessellate();
//PoolVector<Vector3> v3a=c.get_baked_points();
int v3s = v3a.Length;
if (v3s == 0)
{
return;
}
var v3p = new Vector3[v3s * 2];
int v3pCount = 0;
// BUG: the following won't work when v3s, avoid drawing as a temporary workaround.
for (int i = 0; i < v3s - 1; i++)
{
v3p = v3p.Add(ref v3pCount, v3a[i]);
v3p = v3p.Add(ref v3pCount, v3a[i + 1]);
//v3p.push_back(r[i]);
//v3p.push_back(r[i]+Vector3(0,0.2,0));
}
if (v3pCount > 1)
{
v3p = v3p.Trim(ref v3pCount);
AddLines((Vector3[])v3p.Clone(), pathMaterial);
AddCollisionSegments((Vector3[])v3p.Clone());
}
if (plugin.path == path)
{
v3p = v3p.Clear(ref v3pCount, true);
int pointCount = c.GetPointCount();
var handles = new Vector3[pointCount];
int handlesCount = 0;
var secHandles = new Vector3[pointCount];
int secHandlesCount = 0;
for (int i = 0; i < pointCount; i++)
{
Vector3 p = c.GetPointPosition(i);
handles = handles.Add(ref handlesCount, p);
if (i > 0)
{
v3p = v3p.Add(ref v3pCount, p);
v3p = v3p.Add(ref v3pCount, p + c.GetPointIn(i));
secHandles = secHandles.Add(ref secHandlesCount, p + c.GetPointIn(i));
}
if (i < pointCount - 1)
{
v3p = v3p.Add(ref v3pCount, p);
v3p = v3p.Add(ref v3pCount, p + c.GetPointOut(i));
secHandles = secHandles.Add(ref secHandlesCount, p + c.GetPointOut(i));
}
}
v3p = v3p.Trim(ref v3pCount);
handles = handles.Trim(ref handlesCount);
secHandles = secHandles.Trim(ref secHandlesCount);
if (v3pCount > 1)
{
AddLines(v3p, pathThinMaterial);
}
if (handlesCount > 0)
{
AddHandles(handles, handlesMaterial);
}
if (secHandlesCount > 0)
{
AddHandles(secHandles, handlesMaterial, false, true);
}
}
}
public override void CommitHandle(int index, object restore, bool cancel)
{
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
return;
}
UndoRedo ur = plugin.GetUndoRedo();
if (index < c.GetPointCount())
{
if (cancel)
{
c.SetPointPosition(index, (Vector3)restore);
return;
}
ur.CreateAction(("Set Curve Point Position"));
ur.AddDoMethod(c, "set_point_position", index, c.GetPointPosition(index));
ur.AddUndoMethod(c, "set_point_position", index, restore);
ur.CommitAction();
return;
}
index = index - c.GetPointCount() + 1;
int idx = index / 2;
int t = index % 2;
if (t == 0)
{
if (cancel)
{
c.SetPointIn(index, (Vector3)restore);
return;
}
ur.CreateAction(("Set Curve In Position"));
ur.AddDoMethod(c, "set_point_in", idx, c.GetPointIn(idx));
ur.AddUndoMethod(c, "set_point_in", idx, restore);
if (plugin.mirrorHandleAngle)
{
ur.AddDoMethod(c, "set_point_out", idx, plugin.mirrorHandleLength ? -c.GetPointIn(idx) : (-c.GetPointIn(idx).Normalized() * origOutLenght));
ur.AddUndoMethod(c, "set_point_out", idx, plugin.mirrorHandleLength ? -(Vector3)restore : (-((Vector3)restore).Normalized() * origOutLenght));
}
ur.CommitAction();
}
else
{
if (cancel)
{
c.SetPointOut(idx, (Vector3)restore);
return;
}
ur.CreateAction(("Set Curve Out Position"));
ur.AddDoMethod(c, "set_point_out", idx, c.GetPointOut(idx));
ur.AddUndoMethod(c, "set_point_out", idx, restore);
if (plugin.mirrorHandleAngle)
{
ur.AddDoMethod(c, "set_point_in", idx, plugin.mirrorHandleLength ? -c.GetPointOut(idx) : (-c.GetPointOut(idx).Normalized() * origInLength));
ur.AddUndoMethod(c, "set_point_in", idx, plugin.mirrorHandleLength ? -(Vector3)(restore) : (-((Vector3)restore).Normalized() * origInLength));
}
ur.CommitAction();
}
}
public override bool ForwardSpatialGuiInput(Camera camera, InputEvent @event)
{
if (!IsInstanceValid(path))
{
return(false);
}
Curve3D c = path.curve;
if (!IsInstanceValid(c))
{
return(false);
}
Transform gt = path.GlobalTransform;
Transform it = gt.AffineInverse();
if (@event is InputEventMouseButton mb)
{
Vector2 mbPos = mb.Position;
if (!mb.Pressed)
{
SetHandleClicked(false);
}
if (mb.Pressed && mb.ButtonIndex == (int)ButtonList.Left && (curveCreate.Pressed || (curveEdit.Pressed && mb.Control)))
{
//click into curve, break it down
Vector3[] v3a = c.Tessellate();
int idx = 0;
int rc = v3a.Length;
int closestSeg = -1;
Vector3 closestSegPoint = new Vector3();
float closest_d = float.MaxValue;
if (rc >= 2)
{
if (camera.UnprojectPosition(gt.Xform(c.GetPointPosition(0))).DistanceTo(mbPos) < clickDist)
{
return(false); //nope, existing
}
for (int i = 0; i < c.GetPointCount() - 1; i++)
{
//find the offset and point index of the place to break up
int j = idx;
if (camera.UnprojectPosition(gt.Xform(c.GetPointPosition(i + 1))).DistanceTo(mbPos) < clickDist)
{
return(false); //nope, existing
}
while (j < rc && c.GetPointPosition(i + 1) != v3a[j])
{
Vector3 from = v3a[j];
Vector3 to = v3a[j + 1];
float cdist = from.DistanceTo(to);
from = gt.Xform(from);
to = gt.Xform(to);
if (cdist > 0)
{
Vector2[] s = new Vector2[2];
s[0] = camera.UnprojectPosition(from);
s[1] = camera.UnprojectPosition(to);
Vector2 inters = GetClosestPointToSegment2D(mbPos, s);
float d = inters.DistanceTo(mbPos);
if (d < 10 && d < closest_d)
{
closest_d = d;
closestSeg = i;
Vector3 ray_from = camera.ProjectRayOrigin(mbPos);
Vector3 ray_dir = camera.ProjectRayNormal(mbPos);
Vector3 ra, rb;
GetClosestPointsBetweenSegments(ray_from, ray_from + ray_dir * 4096, from, to, out ra, out rb);
closestSegPoint = it.Xform(rb);
}
}
j++;
}
if (idx == j)
{
idx++; //force next
}
else
{
idx = j; //swap
}
if (j == rc)
{
break;
}
}
}
var ur = GetUndoRedo();
if (closestSeg != -1)
{
//subdivide
ur.CreateAction("Split Path");
ur.AddDoMethod(c, "add_point", closestSegPoint, new Vector3(), new Vector3(), closestSeg + 1);
ur.AddUndoMethod(c, "remove_point", closestSeg + 1);
ur.CommitAction();
return(true);
}
else
{
Vector3 org;
if (c.GetPointCount() == 0)
{
org = path.Transform.origin;
}
else
{
org = gt.Xform(c.GetPointPosition(c.GetPointCount() - 1));
}
Plane p = new Plane();
p.Normal = camera.Transform.basis.GetColumn(2);
p.D = p.Normal.Dot(org);
Vector3 ray_from = camera.ProjectRayOrigin(mbPos);
Vector3 ray_dir = camera.ProjectRayNormal(mbPos);
Vector3?inters = p.IntersectRay(ray_from, ray_dir);
if (inters != null)
{
ur.CreateAction("Add Point to Curve");
ur.AddDoMethod(c, "add_point", it.Xform((Vector3)inters), new Vector3(), new Vector3(), -1);
ur.AddUndoMethod(c, "remove_point", c.GetPointCount());
ur.CommitAction();
return(true);
}
//add new at pos
}
}
else if (mb.Pressed && ((mb.ButtonIndex == (int)ButtonList.Left && curveDel.Pressed) || (mb.ButtonIndex == (int)ButtonList.Right && curveEdit.Pressed)))
{
for (int i = 0; i < c.GetPointCount(); i++)
{
float dist_to_p = camera.UnprojectPosition(gt.Xform(c.GetPointPosition(i))).DistanceTo(mbPos);
float dist_to_p_out = camera.UnprojectPosition(gt.Xform(c.GetPointPosition(i) + c.GetPointOut(i))).DistanceTo(mbPos);
float dist_to_p_in = camera.UnprojectPosition(gt.Xform(c.GetPointPosition(i) + c.GetPointIn(i))).DistanceTo(mbPos);
// Find the offset and point index of the place to break up.
// Also check for the control points.
var ur = GetUndoRedo();
if (dist_to_p < clickDist)
{
ur.CreateAction("Remove Path Point");
ur.AddDoMethod(c, "remove_point", i);
ur.AddUndoMethod(c, "add_point", c.GetPointPosition(i), c.GetPointIn(i), c.GetPointOut(i), i);
ur.CommitAction();
return(true);
}
else if (dist_to_p_out < clickDist)
{
ur.CreateAction(("Remove Out-Control Point"));
ur.AddDoMethod(c, "set_point_out", i, new Vector3());
ur.AddUndoMethod(c, "set_point_out", i, c.GetPointOut(i));
ur.CommitAction();
return(true);
}
else if (dist_to_p_in < clickDist)
{
ur.CreateAction(("Remove In-Control Point"));
ur.AddDoMethod(c, "set_point_in", i, new Vector3());
ur.AddUndoMethod(c, "set_point_in", i, c.GetPointOut(i));
ur.CommitAction();
return(true);
}
}
}
}
return(false);
}
