// Mouse input
internal void ProcessMouseInput(Vector2D delta)
{
// Change camera angles with the mouse changes
anglexy -= delta.x * ANGLE_FROM_MOUSE;
if (General.Settings.InvertYAxis)
{
anglez -= delta.y * ANGLE_FROM_MOUSE;
}
else
{
anglez += delta.y * ANGLE_FROM_MOUSE;
}
// Normalize angles
anglexy = Angle2D.Normalized(anglexy);
anglez = Angle2D.Normalized(anglez);
// Limit vertical angle
if (anglez < MAX_ANGLEZ_LOW)
{
anglez = MAX_ANGLEZ_LOW;
}
if (anglez > MAX_ANGLEZ_HIGH)
{
anglez = MAX_ANGLEZ_HIGH;
}
}
// This updates the selection
private void Update()
{
// Not in any modifying mode?
if (mode == ModifyMode.None)
{
Vector2D prevdragoffset = alignoffset;
alignoffset = new Vector2D(float.MinValue, float.MinValue);
showalignoffset = false;
// Check what grip the mouse is over
// and change cursor accordingly
Grip mousegrip = CheckMouseGrip();
switch (mousegrip)
{
case Grip.Main:
int closestcorner = -1;
float cornerdist = float.MaxValue;
for (int i = 0; i < 4; i++)
{
Vector2D delta = corners[i] - mousemappos;
float d = delta.GetLengthSq();
if (d < cornerdist)
{
closestcorner = i;
cornerdist = d;
}
}
switch (closestcorner)
{
// TODO:
case 0: alignoffset = new Vector2D(0f, 0f); break;
case 1: alignoffset = new Vector2D(texture.ScaledWidth, 0f); break;
case 2: alignoffset = new Vector2D(texture.ScaledWidth, -texture.ScaledHeight); break;
case 3: alignoffset = new Vector2D(0f, -texture.ScaledHeight); break;
}
showalignoffset = true;
General.Interface.SetCursor(Cursors.Hand);
break;
case Grip.RotateLB:
case Grip.RotateRT:
alignoffset = new Vector2D(0f, 0f);
showalignoffset = true;
General.Interface.SetCursor(Cursors.Cross);
break;
case Grip.SizeH:
case Grip.SizeV:
alignoffset = new Vector2D(0f, 0f);
showalignoffset = true;
// Pick the best matching cursor depending on rotation and side
float resizeangle = -(rotation + sectorinfo[0].rotation);
if (mousegrip == Grip.SizeH)
{
resizeangle += Angle2D.PIHALF;
}
resizeangle = Angle2D.Normalized(resizeangle);
if (resizeangle > Angle2D.PI)
{
resizeangle -= Angle2D.PI;
}
resizeangle = Math.Abs(resizeangle + Angle2D.PI / 8.000001f);
int cursorindex = (int)Math.Floor((resizeangle / Angle2D.PI) * 4.0f) % 4;
General.Interface.SetCursor(RESIZE_CURSORS[cursorindex]);
break;
default:
General.Interface.SetCursor(Cursors.Default);
break;
}
if (prevdragoffset != alignoffset)
{
General.Interface.RedrawDisplay();
}
}
else
{
Vector2D snappedmappos = mousemappos;
bool dosnaptogrid = snaptogrid;
// Options
snaptogrid = General.Interface.ShiftState ^ General.Interface.SnapToGrid;
snaptonearest = General.Interface.CtrlState ^ General.Interface.AutoMerge;
// Change to crosshair cursor so we can clearly see around the mouse cursor
General.Interface.SetCursor(Cursors.Cross);
// Check what modifying mode we are in
switch (mode)
{
case ModifyMode.Dragging:
offset = -mousemappos - dragoffset;
Vector2D transformedpos = TexToWorld(alignoffset);
// Snap to nearest vertex?
if (snaptonearest)
{
float vrange = BuilderPlug.Me.StitchRange / renderer.Scale;
// Try the nearest vertex
Vertex nv = MapSet.NearestVertexSquareRange(General.Map.Map.Vertices, transformedpos, vrange);
if (nv != null)
{
// Change offset to snap to target
offset -= nv.Position - transformedpos;
dosnaptogrid = false;
}
else
{
// Find the nearest line within range
Linedef nl = MapSet.NearestLinedefRange(General.Map.Map.Linedefs, transformedpos, vrange);
if (nl != null)
{
// Snap to grid?
if (dosnaptogrid)
{
// Get grid intersection coordinates
List <Vector2D> coords = nl.GetGridIntersections();
// Find nearest grid intersection
float found_distance = float.MaxValue;
Vector2D found_pos = new Vector2D(float.NaN, float.NaN);
foreach (Vector2D v in coords)
{
Vector2D dist = transformedpos - v;
if (dist.GetLengthSq() < found_distance)
{
// Found a better match
found_distance = dist.GetLengthSq();
found_pos = v;
// Do not snap to grid anymore
dosnaptogrid = false;
}
}
// Found something?
if (!float.IsNaN(found_pos.x))
{
// Change offset to snap to target
offset -= found_pos - transformedpos;
}
}
else
{
// Change offset to snap onto the line
offset -= nl.NearestOnLine(transformedpos) - transformedpos;
}
}
}
}
// Snap to grid?
if (dosnaptogrid)
{
// Change offset to align to grid
offset -= General.Map.Grid.SnappedToGrid(transformedpos) - transformedpos;
}
break;
case ModifyMode.Resizing:
// Snap to nearest vertex?
if (snaptonearest)
{
float vrange = BuilderPlug.Me.StitchRange / renderer.Scale;
// Try the nearest vertex
Vertex nv = MapSet.NearestVertexSquareRange(General.Map.Map.Vertices, snappedmappos, vrange);
if (nv != null)
{
snappedmappos = nv.Position;
dosnaptogrid = false;
}
}
// Snap to grid?
if (dosnaptogrid)
{
// Aligned to grid
snappedmappos = General.Map.Grid.SnappedToGrid(snappedmappos);
}
float newscale = 1f / resizeaxis.GetNearestOnLine(snappedmappos);
if (float.IsInfinity(newscale) || float.IsNaN(newscale))
{
newscale = 99999f;
}
scale = (newscale * resizefilter) + scale * (1.0f - resizefilter);
if (float.IsInfinity(scale.x) || float.IsNaN(scale.x))
{
scale.x = 99999f;
}
if (float.IsInfinity(scale.y) || float.IsNaN(scale.y))
{
scale.y = 99999f;
}
// Show the extension line so that the user knows what it is aligning to
UpdateRectangleComponents();
Line2D edgeline;
if (resizefilter.x > resizefilter.y)
{
edgeline = new Line2D(corners[1], corners[2]);
}
else
{
edgeline = new Line2D(corners[3], corners[2]);
}
float nearestonedge = edgeline.GetNearestOnLine(snappedmappos);
if (nearestonedge > 0.5f)
{
extensionline = new Line2D(edgeline.v1, snappedmappos);
}
else
{
extensionline = new Line2D(edgeline.v2, snappedmappos);
}
break;
case ModifyMode.Rotating:
// Snap to nearest vertex?
extensionline = new Line2D();
if (snaptonearest)
{
float vrange = BuilderPlug.Me.StitchRange / renderer.Scale;
// Try the nearest vertex
Vertex nv = MapSet.NearestVertexSquareRange(General.Map.Map.Vertices, snappedmappos, vrange);
if (nv != null)
{
snappedmappos = nv.Position;
dosnaptogrid = false;
// Show the extension line so that the user knows what it is aligning to
extensionline = new Line2D(corners[0], snappedmappos);
}
}
Vector2D delta = snappedmappos - rotationcenter;
float deltaangle = -delta.GetAngle();
// Snap to grid?
if (dosnaptogrid)
{
// We make 8 vectors that the rotation can snap to
float founddistance = float.MaxValue;
float foundrotation = rotation;
for (int i = 0; i < 8; i++)
{
// Make the vectors
float angle = (float)i * Angle2D.PI * 0.25f;
Vector2D gridvec = Vector2D.FromAngle(angle);
Vector3D rotvec = Vector2D.FromAngle(deltaangle + rotationoffset);
// Check distance
float dist = 2.0f - Vector2D.DotProduct(gridvec, rotvec);
if (dist < founddistance)
{
foundrotation = angle;
founddistance = dist;
}
}
// Keep rotation
rotation = foundrotation - sectorinfo[0].rotation;
}
else
{
rotation = deltaangle + rotationoffset - sectorinfo[0].rotation;
}
break;
}
UpdateSectors();
General.Interface.RedrawDisplay();
}
}
private void ComputeAngle()
{
List <LineAngleInfo> lines = new List <LineAngleInfo>();
List <double> angles = new List <double>();
// Get all lines that we have to take into account. Ignore linedefs where both sides
// don't belong to the sector or don't belong to the sector
foreach (Linedef ld in vertex.Linedefs)
{
if (ld.IsDisposed)
{
continue;
}
else
{
bool frontsame = false;
bool backsame = false;
if (ld.Front != null && ld.Front.Sector == sector)
{
frontsame = true;
}
if (ld.Back != null && ld.Back.Sector == sector)
{
backsame = true;
}
if (frontsame == backsame)
{
continue;
}
}
lines.Add(new LineAngleInfo(ld, vertex, sector));
}
// Special case handling
if (lines.Count < 2)
{
if (vertex.Linedefs.Count == 1)
{
angle = vertex.Linedefs.First().Angle + Angle2D.PIHALF;
return;
}
angle = 0.0;
return;
}
// Sort lines by their normalized angle
lines.Sort((a, b) => a.angle.CompareTo(b.angle));
// Get the other line we want to compute the angle between
int other = 1;
if (!lines[0].clockwise)
{
other = lines.Count - 1;
}
Vector2D v1 = Vector2D.FromAngle(lines[0].angle);
Vector2D v2 = Vector2D.FromAngle(lines[other].angle);
angle = lines[0].angle + (Math.Atan2(v2.y, v2.x) - Math.Atan2(v1.y, v1.x)) / 2.0;
// If the first line is going clockwise we have to add 180°
if (lines[0].clockwise)
{
angle += Angle2D.PI;
}
// Add 90° to get it in line with Doom's angles
angle += Angle2D.PIHALF;
// Also need to modify the angle for ceilings
if (level.type == SectorLevelType.Ceiling)
{
angle += Angle2D.PI;
}
angle = Angle2D.Normalized(angle);
}