// This is called to update UV dragging
protected virtual void UpdateDragUV()
{
float u_ray = 1.0f;
// Calculate intersection position
this.Level.plane.GetIntersection(General.Map.VisualCamera.Position, General.Map.VisualCamera.Target, ref u_ray);
Vector3D intersect = General.Map.VisualCamera.Position + (General.Map.VisualCamera.Target - General.Map.VisualCamera.Position) * u_ray;
// Calculate offsets
Vector3D dragdelta = intersect - dragorigin;
float offsetx = dragdelta.x;
float offsety = dragdelta.y;
bool lockX = General.Interface.CtrlState && !General.Interface.ShiftState;
bool lockY = !General.Interface.CtrlState && General.Interface.ShiftState;
if (lockX || lockY)
{
float camAngle = Angle2D.RadToDeg(General.Map.VisualCamera.AngleXY);
if (camAngle > 315 || camAngle < 46)
{
if (lockX)
{
offsetx = 0;
}
if (lockY)
{
offsety = 0;
}
}
else if (camAngle > 225)
{
if (lockX)
{
offsety = 0;
}
if (lockY)
{
offsetx = 0;
}
}
else if (camAngle > 135)
{
if (lockX)
{
offsetx = 0;
}
if (lockY)
{
offsety = 0;
}
}
else
{
if (lockX)
{
offsety = 0;
}
if (lockY)
{
offsetx = 0;
}
}
}
//mxd. Modify offsets based on surface and camera angles
float angle;
if (GeometryType == VisualGeometryType.CEILING)
{
angle = Angle2D.DegToRad(level.sector.Fields.GetValue("rotationceiling", 0f));
}
else
{
angle = Angle2D.DegToRad(level.sector.Fields.GetValue("rotationfloor", 0f));
}
Vector2D v = new Vector2D(offsetx, offsety).GetRotated(angle);
offsetx = (int)Math.Round(v.x);
offsety = (int)Math.Round(v.y);
// Calculate deltas
int deltax, deltay;
if (General.Interface.CtrlState && General.Interface.ShiftState)
{
//mxd. Clamp to grid size?
int newoffsetx = startoffsetx - (int)Math.Round(offsetx);
int newoffsety = startoffsety + (int)Math.Round(offsety);
deltax = prevoffsetx - newoffsetx;
deltay = prevoffsety - newoffsety;
if (Math.Abs(deltax) >= General.Map.Grid.GridSize)
{
deltax = General.Map.Grid.GridSize * Math.Sign(deltax);
prevoffsetx = newoffsetx;
}
else
{
deltax = 0;
}
if (Math.Abs(deltay) >= General.Map.Grid.GridSize)
{
deltay = General.Map.Grid.GridSize * Math.Sign(deltay);
prevoffsety = newoffsety;
}
else
{
deltay = 0;
}
}
else
{
int newoffsetx = startoffsetx - (int)Math.Round(offsetx);
int newoffsety = startoffsety + (int)Math.Round(offsety);
deltax = prevoffsetx - newoffsetx;
deltay = prevoffsety - newoffsety;
prevoffsetx = newoffsetx;
prevoffsety = newoffsety;
}
//mxd. Apply offset?
if (deltax != 0 || deltay != 0)
{
mode.ApplyFlatOffsetChange(deltax, deltay);
}
mode.ShowTargetInfo();
}