public void InteractiveFreeEdit(int x, int y)
{
Vector3 OurPos;
Rot OurRot;
if (camera.bRoamingCameraEnabled)
{
OurPos = camera.RoamingCameraPos;
OurRot = camera.RoamingCameraRot;
}
else
{
Avatar ouravatar = MetaverseClient.GetInstance().myavatar;
if (ouravatar != null)
{
OurPos = ouravatar.pos;
OurRot = ouravatar.rot;
}
else
{
return;
}
}
Rot rInverseOurRot = OurRot.Inverse();
double HalfWinWidth = RendererFactory.GetInstance().WindowWidth / 2;
double HalfWinHeight = RendererFactory.GetInstance().WindowHeight / 2;
double zRoll = (x - editing3d.iDragStartX) / HalfWinWidth;
double yRoll = -(y - editing3d.iDragStartY) / HalfWinHeight;
double amount = Math.Sqrt((double)((editing3d.iDragStartX - x) * (editing3d.iDragStartX - x) +
(editing3d.iDragStartY - y) * (editing3d.iDragStartY - y))) * mvMath.Pi2 / HalfWinHeight;
Vector3 ArcBallAxis = new Vector3(0, yRoll, zRoll);
Rot ArcBallRot = mvMath.AxisAngle2Rot(ArcBallAxis, amount);
Rot rTransposedToAv = rInverseOurRot * editing3d.startrot;
Rot rRotated = ArcBallRot * rTransposedToAv;
Rot rNewRot = OurRot * rRotated;
selectionmodel.GetFirstSelectedEntity().rot = rNewRot;
MetaverseClient.GetInstance().worldstorage.OnModifyEntity(selectionmodel.GetFirstSelectedEntity());
}
public void DrawEditBarsToOpenGL(Vector3 camerapos)
{
if (bShowEditBars)
{
Entity entity = selectionmodel.GetFirstSelectedEntity();
if (entity == null)
{
return;
}
IGraphicsHelper graphics = GraphicsHelperFactory.GetInstance();
graphics.PushMatrix();
if (entity.Parent == null)
{
//entity.DrawSelected();
}
else
{
(entity.Parent as EntityGroup).ApplyTransforms();
}
graphics.Translate(entity.pos);
graphics.Rotate(entity.rot);
// Vector3[] FaceCentreOffsets = new Vector3[6];
double distance = (entity.pos - camerapos).Det();
Vector3 ScaleToUse = entity.scale;
switch (editbartype)
{
case EditBarType.Pos:
editing3dpos.DrawEditHandles(ScaleToUse, distance);
//editing3dscale.DrawEditHandles(ScaleToUse, distance);
break;
case EditBarType.Scale:
editing3dscale.DrawEditHandles(ScaleToUse, distance);
break;
case EditBarType.Rot:
editing3drot.DrawEditHandles(ScaleToUse);
break;
}
graphics.PopMatrix();
}
}
// see description of function by same name in Editing3dPos
public void InteractiveHandleEdit(Axis axis, int mousex, int mousey)
{
Entity entity = selectionmodel.GetFirstSelectedEntity();
if (entity == null)
{
return;
}
Vector3 ourpos = null;
Rot ourrot = null;
if (camera.bRoamingCameraEnabled)
{
ourpos = camera.RoamingCameraPos;
ourrot = camera.RoamingCameraRot;
}
else
{
Avatar ouravatar = MetaverseClient.GetInstance().myavatar;
if (ouravatar != null)
{
ourpos = ouravatar.pos;
ourrot = ouravatar.rot;
}
else
{
return;
}
}
// what is the scaling from screen pixels to world pixels, at the distance of the object from us
// obviously this is only approximate for nearish objects, which is most objects...
double fDistanceFromUsToObject = (entity.pos - ourpos).Det();
double fScalingFromPosToScreen = graphics.GetScalingFrom3DToScreen(fDistanceFromUsToObject);
// Create a 3d vector represeting our mouse drag, in avatar coordinates, in screen pixels
Vector3 mousemovescreenaxes = new Vector3(0,
-(double)(mousex - editing3d.iDragStartX),
-(double)(mousey - editing3d.iDragStartY));
// transform into a 3d vector, in avatar coordinates, in "world units"
Vector3 mousemoveavaxes = mousemovescreenaxes * (1 / fScalingFromPosToScreen);
// Get handleaxis in avatar axes:
Vector3 handleaxisentityaxes = axis.ToVector();
handleaxisentityaxes.x = Math.Abs(handleaxisentityaxes.x);
handleaxisentityaxes.y = Math.Abs(handleaxisentityaxes.y);
handleaxisentityaxes.z = Math.Abs(handleaxisentityaxes.z);
Vector3 handleaxisworldaxes = handleaxisentityaxes * entity.rot.Inverse();
Vector3 handleaxisavaxes = handleaxisworldaxes * ourrot;
// we project our handleaxis onto the screen, then project our mousemove onto this
// to get mousemove2 (see function description for more info)
Vector3 handleaxisprojectedtoscreen = new Vector3(0, handleaxisavaxes.y, handleaxisavaxes.z);
Vector3 mousemove2 = handleaxisprojectedtoscreen.Unit() * Vector3.DotProduct(mousemoveavaxes, handleaxisprojectedtoscreen.Unit());
// now we are going to find the ratio between our mousemovement size and how far we need to move along the handleaxis
double entitymovetomousemoveratio = Vector3.DotProduct(handleaxisavaxes.Unit(), mousemove2.Unit());
// This gives us the ratio between mouse move distance and entity move distance, now we can calculate the change in entity scale:
if (Math.Abs(entitymovetomousemoveratio) < 0.05) // prevent infinite scaling..
{
return;
}
Vector3 scalechange = (mousemove2.Det() / entitymovetomousemoveratio) * handleaxisentityaxes;
Vector3 newscale = null;
if (axis.IsPositiveAxis)
{
newscale = editing3d.startscale + scalechange;
}
else
{
newscale = editing3d.startscale - scalechange;
}
newscale.x = Math.Max(0.05, newscale.x);
newscale.y = Math.Max(0.05, newscale.y);
newscale.z = Math.Max(0.05, newscale.z);
Vector3 finalscalechange = newscale - editing3d.startscale;
Vector3 finalscalechangeworldaxes = finalscalechange * entity.rot.Inverse();
if (axis.IsPositiveAxis)
{
entity.pos = editing3d.startpos + (finalscalechangeworldaxes) / 2;
}
else
{
entity.pos = editing3d.startpos - (finalscalechangeworldaxes) / 2;
}
// scale is defined in entity local axes, so no need to transform into world axes
entity.scale = newscale;
MetaverseClient.GetInstance().worldstorage.OnModifyEntity(entity);
}
