mirror of
https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
synced 2024-11-26 22:01:45 +00:00
4dba3a9234
- fixed a rare condition where skewed mid textures were not clipped correctly - fixed a problem where translucent mid textures were not skewed correctly - fixed a problem where sprites were skewed unintentionally
635 lines
22 KiB
C#
Executable file
635 lines
22 KiB
C#
Executable file
|
|
#region ================== Copyright (c) 2007 Pascal vd Heiden
|
|
|
|
/*
|
|
* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
|
|
* This program is released under GNU General Public License
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#endregion
|
|
|
|
#region ================== Namespaces
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Drawing;
|
|
using System.Linq;
|
|
using CodeImp.DoomBuilder.Map;
|
|
using CodeImp.DoomBuilder.Geometry;
|
|
using CodeImp.DoomBuilder.Rendering;
|
|
using CodeImp.DoomBuilder.Types;
|
|
using CodeImp.DoomBuilder.VisualModes;
|
|
using CodeImp.DoomBuilder.Data;
|
|
|
|
#endregion
|
|
|
|
namespace CodeImp.DoomBuilder.BuilderModes
|
|
{
|
|
internal sealed class VisualMiddleDouble : BaseVisualGeometrySidedef
|
|
{
|
|
#region ================== Constants
|
|
|
|
#endregion
|
|
|
|
#region ================== Variables
|
|
|
|
private bool repeatmidtex;
|
|
private Plane topclipplane;
|
|
private Plane bottomclipplane;
|
|
|
|
#endregion
|
|
|
|
#region ================== Properties
|
|
|
|
#endregion
|
|
|
|
#region ================== Constructor / Setup
|
|
|
|
// Constructor
|
|
public VisualMiddleDouble(BaseVisualMode mode, VisualSector vs, Sidedef s) : base(mode, vs, s)
|
|
{
|
|
//mxd
|
|
geometrytype = VisualGeometryType.WALL_MIDDLE;
|
|
partname = "mid";
|
|
|
|
// Set render pass
|
|
this.RenderPass = RenderPass.Mask;
|
|
|
|
// We have no destructor
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
// This builds the geometry. Returns false when no geometry created.
|
|
public override bool Setup()
|
|
{
|
|
//mxd
|
|
if(Sidedef.LongMiddleTexture == MapSet.EmptyLongName)
|
|
{
|
|
base.SetVertices(null);
|
|
return false;
|
|
}
|
|
|
|
Vector2D vl, vr;
|
|
|
|
//mxd. lightfog flag support
|
|
int lightvalue;
|
|
bool lightabsolute;
|
|
GetLightValue(out lightvalue, out lightabsolute);
|
|
|
|
Vector2D tscale = new Vector2D(Sidedef.Fields.GetValue("scalex_mid", 1.0),
|
|
Sidedef.Fields.GetValue("scaley_mid", 1.0));
|
|
Vector2D tscaleAbs = new Vector2D(Math.Abs(tscale.x), Math.Abs(tscale.y));
|
|
Vector2D toffset = new Vector2D(Sidedef.Fields.GetValue("offsetx_mid", 0.0),
|
|
Sidedef.Fields.GetValue("offsety_mid", 0.0));
|
|
|
|
// Left and right vertices for this sidedef
|
|
if(Sidedef.IsFront)
|
|
{
|
|
vl = new Vector2D(Sidedef.Line.Start.Position.x, Sidedef.Line.Start.Position.y);
|
|
vr = new Vector2D(Sidedef.Line.End.Position.x, Sidedef.Line.End.Position.y);
|
|
}
|
|
else
|
|
{
|
|
vl = new Vector2D(Sidedef.Line.End.Position.x, Sidedef.Line.End.Position.y);
|
|
vr = new Vector2D(Sidedef.Line.Start.Position.x, Sidedef.Line.Start.Position.y);
|
|
}
|
|
|
|
// Load sector data
|
|
SectorData sd = mode.GetSectorData(Sidedef.Sector);
|
|
SectorData osd = mode.GetSectorData(Sidedef.Other.Sector);
|
|
if(!osd.Updated) osd.Update();
|
|
|
|
// Load texture
|
|
if(Sidedef.LongMiddleTexture != MapSet.EmptyLongName)
|
|
{
|
|
base.Texture = General.Map.Data.GetTextureImage(Sidedef.LongMiddleTexture);
|
|
if(base.Texture == null || base.Texture is UnknownImage)
|
|
{
|
|
base.Texture = General.Map.Data.UnknownTexture3D;
|
|
setuponloadedtexture = Sidedef.LongMiddleTexture;
|
|
}
|
|
else if(!base.Texture.IsImageLoaded)
|
|
{
|
|
setuponloadedtexture = Sidedef.LongMiddleTexture;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Use missing texture
|
|
base.Texture = General.Map.Data.MissingTexture3D;
|
|
setuponloadedtexture = 0;
|
|
}
|
|
|
|
// Get texture scaled size. Round up, because that's apparently what GZDoom does
|
|
Vector2D tsz = new Vector2D(Math.Ceiling(base.Texture.ScaledWidth / tscale.x), Math.Ceiling(base.Texture.ScaledHeight / tscale.y));
|
|
|
|
// Get texture offsets
|
|
Vector2D tof = new Vector2D(Sidedef.OffsetX, Sidedef.OffsetY);
|
|
|
|
tof = tof + toffset;
|
|
|
|
// biwa. Also take the ForceWorldPanning MAPINFO entry into account
|
|
if (General.Map.Config.ScaledTextureOffsets && (!base.Texture.WorldPanning && !General.Map.Data.MapInfo.ForceWorldPanning))
|
|
{
|
|
tof = tof / tscaleAbs;
|
|
tof = tof * base.Texture.Scale;
|
|
|
|
// If the texture gets replaced with a "hires" texture it adds more fuckery
|
|
if (base.Texture is HiResImage)
|
|
tof *= tscaleAbs;
|
|
|
|
// Round up, since that's apparently what GZDoom does. Not sure if this is the right place or if it also has to be done earlier
|
|
tof = new Vector2D(Math.Ceiling(tof.x), Math.Ceiling(tof.y));
|
|
}
|
|
|
|
// Determine texture coordinates plane as they would be in normal circumstances.
|
|
// We can then use this plane to find any texture coordinate we need.
|
|
// The logic here is the same as in the original VisualMiddleSingle (except that
|
|
// the values are stored in a TexturePlane)
|
|
// NOTE: I use a small bias for the floor height, because if the difference in
|
|
// height is 0 then the TexturePlane doesn't work!
|
|
TexturePlane tp = new TexturePlane();
|
|
double floorbias = (Sidedef.Sector.CeilHeight == Sidedef.Sector.FloorHeight) ? 1.0 : 0.0;
|
|
double geotop = Math.Min(Sidedef.Sector.CeilHeight, Sidedef.Other.Sector.CeilHeight);
|
|
double geobottom = Math.Max(Sidedef.Sector.FloorHeight, Sidedef.Other.Sector.FloorHeight);
|
|
double zoffset = Sidedef.Sector.CeilHeight - Sidedef.Other.Sector.CeilHeight; //mxd
|
|
|
|
// When lower unpegged is set, the middle texture is bound to the bottom
|
|
if(Sidedef.Line.IsFlagSet(General.Map.Config.LowerUnpeggedFlag))
|
|
tp.tlt.y = tsz.y - (geotop - geobottom);
|
|
|
|
if(zoffset > 0) tp.tlt.y -= zoffset; //mxd
|
|
tp.trb.x = tp.tlt.x + Math.Round(Sidedef.Line.Length); //mxd. (G)ZDoom snaps texture coordinates to integral linedef length
|
|
tp.trb.y = tp.tlt.y + (Sidedef.Sector.CeilHeight - (Sidedef.Sector.FloorHeight + floorbias));
|
|
|
|
// Apply texture offset
|
|
tp.tlt += tof;
|
|
tp.trb += tof;
|
|
|
|
// Transform pixel coordinates to texture coordinates
|
|
tp.tlt /= tsz;
|
|
tp.trb /= tsz;
|
|
|
|
// Left top and right bottom of the geometry that
|
|
tp.vlt = new Vector3D(vl.x, vl.y, Sidedef.Sector.CeilHeight);
|
|
tp.vrb = new Vector3D(vr.x, vr.y, Sidedef.Sector.FloorHeight + floorbias);
|
|
|
|
// Make the right-top coordinates
|
|
tp.trt = new Vector2D(tp.trb.x, tp.tlt.y);
|
|
tp.vrt = new Vector3D(tp.vrb.x, tp.vrb.y, tp.vlt.z);
|
|
|
|
// Keep top and bottom planes for intersection testing
|
|
top = sd.Ceiling.plane;
|
|
bottom = sd.Floor.plane;
|
|
|
|
// Create initial polygon, which is just a quad between floor and ceiling
|
|
WallPolygon poly = new WallPolygon();
|
|
poly.Add(new Vector3D(vl.x, vl.y, sd.Floor.plane.GetZ(vl)));
|
|
poly.Add(new Vector3D(vl.x, vl.y, sd.Ceiling.plane.GetZ(vl)));
|
|
poly.Add(new Vector3D(vr.x, vr.y, sd.Ceiling.plane.GetZ(vr)));
|
|
poly.Add(new Vector3D(vr.x, vr.y, sd.Floor.plane.GetZ(vr)));
|
|
|
|
// Determine initial color
|
|
int lightlevel = lightabsolute ? lightvalue : sd.Ceiling.brightnessbelow + lightvalue;
|
|
|
|
//mxd. This calculates light with doom-style wall shading
|
|
PixelColor wallbrightness = PixelColor.FromInt(mode.CalculateBrightness(lightlevel, Sidedef));
|
|
PixelColor wallcolor = PixelColor.Modulate(sd.Ceiling.colorbelow, wallbrightness);
|
|
fogfactor = CalculateFogFactor(lightlevel);
|
|
poly.color = wallcolor.WithAlpha(255).ToInt();
|
|
|
|
// Cut off the part below the other floor and above the other ceiling
|
|
CropPoly(ref poly, osd.Ceiling.plane, true);
|
|
CropPoly(ref poly, osd.Floor.plane, true);
|
|
|
|
// Determine if we should repeat the middle texture. In UDMF this is done with a flag, in Hexen with
|
|
// a argument to the 121:Line_SetIdentification. See https://www.zdoom.org/w/index.php?title=Line_SetIdentification
|
|
if (General.Map.UDMF)
|
|
repeatmidtex = Sidedef.IsFlagSet("wrapmidtex") || Sidedef.Line.IsFlagSet("wrapmidtex"); //mxd
|
|
else if (General.Map.HEXEN)
|
|
repeatmidtex = Sidedef.Line.Action == 121 && (Sidedef.Line.Args[1] & 16) == 16;
|
|
else
|
|
repeatmidtex = false;
|
|
|
|
if(!repeatmidtex)
|
|
{
|
|
// First determine the visible portion of the texture
|
|
double textop;
|
|
|
|
// Determine top portion height
|
|
if(Sidedef.Line.IsFlagSet(General.Map.Config.LowerUnpeggedFlag))
|
|
textop = geobottom + tof.y + Math.Abs(tsz.y);
|
|
else
|
|
textop = geotop + tof.y;
|
|
|
|
// Calculate bottom portion height
|
|
double texbottom = textop - Math.Abs(tsz.y);
|
|
|
|
// Create crop planes (we also need these for intersection testing)
|
|
if (General.Map.Config.SidedefTextureSkewing)
|
|
{
|
|
(topclipplane, bottomclipplane) = CreateSkewClipPlanes(textop, texbottom, sd, osd);
|
|
}
|
|
else
|
|
{
|
|
topclipplane = new Plane(new Vector3D(0, 0, -1), textop);
|
|
bottomclipplane = new Plane(new Vector3D(0, 0, 1), -texbottom);
|
|
}
|
|
|
|
// Crop polygon by these heights
|
|
CropPoly(ref poly, topclipplane, true);
|
|
CropPoly(ref poly, bottomclipplane, true);
|
|
}
|
|
|
|
//mxd. In(G)ZDoom, middle sidedef parts are not clipped by extrafloors of any type...
|
|
List<WallPolygon> polygons = new List<WallPolygon> { poly };
|
|
//ClipExtraFloors(polygons, sd.ExtraFloors, true); //mxd
|
|
//ClipExtraFloors(polygons, osd.ExtraFloors, true); //mxd
|
|
|
|
//if(polygons.Count > 0)
|
|
//{
|
|
// Keep top and bottom planes for intersection testing
|
|
top = osd.Ceiling.plane;
|
|
bottom = osd.Floor.plane;
|
|
|
|
// Process the polygon and create vertices
|
|
List<WorldVertex> verts = CreatePolygonVertices(polygons, tp, sd, lightvalue, lightabsolute);
|
|
if(verts.Count > 2)
|
|
{
|
|
// Apply alpha to vertices
|
|
byte alpha = SetLinedefRenderstyle(true);
|
|
if(alpha < 255)
|
|
{
|
|
for(int i = 0; i < verts.Count; i++)
|
|
{
|
|
WorldVertex v = verts[i];
|
|
v.c = PixelColor.FromInt(v.c).WithAlpha(alpha).ToInt();
|
|
verts[i] = v;
|
|
}
|
|
}
|
|
|
|
base.SetVertices(verts);
|
|
|
|
// Set skewing
|
|
UpdateSkew();
|
|
|
|
return true;
|
|
}
|
|
//}
|
|
|
|
base.SetVertices(null); //mxd
|
|
return false;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region ================== Methods
|
|
|
|
// This performs a fast test in object picking
|
|
public override bool PickFastReject(Vector3D from, Vector3D to, Vector3D dir)
|
|
{
|
|
if(!repeatmidtex)
|
|
{
|
|
// When the texture is not repeated, leave when outside crop planes
|
|
if((pickintersect.z < bottomclipplane.GetZ(pickintersect)) ||
|
|
(pickintersect.z > topclipplane.GetZ(pickintersect)))
|
|
return false;
|
|
}
|
|
|
|
return base.PickFastReject(from, to, dir);
|
|
}
|
|
|
|
//mxd. Alpha based picking
|
|
public override bool PickAccurate(Vector3D from, Vector3D to, Vector3D dir, ref double u_ray)
|
|
{
|
|
if(!BuilderPlug.Me.AlphaBasedTextureHighlighting || !Texture.IsImageLoaded || (!Texture.IsTranslucent && !Texture.IsMasked)) return base.PickAccurate(from, to, dir, ref u_ray);
|
|
|
|
double u;
|
|
new Line2D(from, to).GetIntersection(Sidedef.Line.Line, out u);
|
|
if(Sidedef != Sidedef.Line.Front) u = 1.0f - u;
|
|
|
|
// Some textures (e.g. HiResImage) may lie about their size, so use bitmap size instead
|
|
int imageWidth = Texture.GetAlphaTestWidth();
|
|
int imageHeight = Texture.GetAlphaTestHeight();
|
|
|
|
// Determine texture scale...
|
|
Vector2D imgscale = new Vector2D((double)Texture.Width / imageWidth, (double)Texture.Height / imageHeight);
|
|
Vector2D texscale = (Texture is HiResImage) ? imgscale * Texture.Scale : Texture.Scale;
|
|
|
|
// Get correct offset to texture space...
|
|
int ox = (int)Math.Floor((u * Sidedef.Line.Length * UniFields.GetFloat(Sidedef.Fields, "scalex_mid", 1.0f) / texscale.x
|
|
+ ((Sidedef.OffsetX + UniFields.GetFloat(Sidedef.Fields, "offsetx_mid")) / imgscale.x))
|
|
% imageWidth);
|
|
|
|
int oy;
|
|
if (repeatmidtex)
|
|
{
|
|
bool pegbottom = Sidedef.Line.IsFlagSet(General.Map.Config.LowerUnpeggedFlag);
|
|
double zoffset = (pegbottom ? Sidedef.Sector.FloorHeight : Sidedef.Sector.CeilHeight);
|
|
oy = (int)Math.Floor(((pickintersect.z - zoffset) * UniFields.GetFloat(Sidedef.Fields, "scaley_mid", 1.0f) / texscale.y
|
|
- ((Sidedef.OffsetY - UniFields.GetFloat(Sidedef.Fields, "offsety_mid")) / imgscale.y))
|
|
% imageHeight);
|
|
}
|
|
else
|
|
{
|
|
double zoffset = bottomclipplane.GetZ(pickintersect);
|
|
oy = (int)Math.Ceiling(((pickintersect.z - zoffset) * UniFields.GetFloat(Sidedef.Fields, "scaley_mid", 1.0f) / texscale.y) % imageHeight);
|
|
}
|
|
|
|
// Make sure offsets are inside of texture dimensions...
|
|
if (ox < 0) ox += imageWidth;
|
|
if (oy < 0) oy += imageHeight;
|
|
|
|
// Check pixel alpha
|
|
Point pixelpos = new Point(General.Clamp(ox, 0, imageWidth - 1), General.Clamp(imageHeight - oy, 0, imageHeight - 1));
|
|
return (Texture.AlphaTestPixel(pixelpos.X, pixelpos.Y) && base.PickAccurate(from, to, dir, ref u_ray));
|
|
}
|
|
|
|
// Return texture name
|
|
public override string GetTextureName()
|
|
{
|
|
return this.Sidedef.MiddleTexture;
|
|
}
|
|
|
|
// This changes the texture
|
|
protected override void SetTexture(string texturename)
|
|
{
|
|
this.Sidedef.SetTextureMid(texturename);
|
|
General.Map.Data.UpdateUsedTextures();
|
|
this.Setup();
|
|
}
|
|
|
|
protected override void SetTextureOffsetX(int x)
|
|
{
|
|
Sidedef.Fields.BeforeFieldsChange();
|
|
Sidedef.Fields["offsetx_mid"] = new UniValue(UniversalType.Float, (double)x);
|
|
}
|
|
|
|
protected override void SetTextureOffsetY(int y)
|
|
{
|
|
Sidedef.Fields.BeforeFieldsChange();
|
|
Sidedef.Fields["offsety_mid"] = new UniValue(UniversalType.Float, (double)y);
|
|
}
|
|
|
|
protected override void MoveTextureOffset(int offsetx, int offsety)
|
|
{
|
|
Sidedef.Fields.BeforeFieldsChange();
|
|
bool worldpanning = this.Texture.WorldPanning || General.Map.Data.MapInfo.ForceWorldPanning;
|
|
double oldx = Sidedef.Fields.GetValue("offsetx_mid", 0.0);
|
|
double oldy = Sidedef.Fields.GetValue("offsety_mid", 0.0);
|
|
double scalex = Sidedef.Fields.GetValue("scalex_mid", 1.0);
|
|
double scaley = Sidedef.Fields.GetValue("scaley_mid", 1.0);
|
|
bool textureloaded = (Texture != null && Texture.IsImageLoaded); //mxd
|
|
double width = textureloaded ? (worldpanning ? this.Texture.ScaledWidth / scalex : this.Texture.Width) : -1; // biwa
|
|
double height = textureloaded ? (worldpanning ? this.Texture.ScaledHeight / scaley : this.Texture.Height) : -1; // biwa
|
|
|
|
Sidedef.Fields["offsetx_mid"] = new UniValue(UniversalType.Float, GetNewTexutreOffset(oldx, offsetx, width)); //mxd // biwa
|
|
|
|
//mxd. Don't clamp offsetY of clipped mid textures
|
|
bool dontClamp = (!textureloaded || (!Sidedef.IsFlagSet("wrapmidtex") && !Sidedef.Line.IsFlagSet("wrapmidtex")));
|
|
Sidedef.Fields["offsety_mid"] = new UniValue(UniversalType.Float, GetNewTexutreOffset(oldy, offsety, dontClamp ? double.MaxValue : Texture.Height)); // biwa
|
|
}
|
|
|
|
protected override Point GetTextureOffset()
|
|
{
|
|
double oldx = Sidedef.Fields.GetValue("offsetx_mid", 0.0);
|
|
double oldy = Sidedef.Fields.GetValue("offsety_mid", 0.0);
|
|
return new Point((int)oldx, (int)oldy);
|
|
}
|
|
|
|
//mxd
|
|
protected override void ResetTextureScale()
|
|
{
|
|
Sidedef.Fields.BeforeFieldsChange();
|
|
if(Sidedef.Fields.ContainsKey("scalex_mid")) Sidedef.Fields.Remove("scalex_mid");
|
|
if(Sidedef.Fields.ContainsKey("scaley_mid")) Sidedef.Fields.Remove("scaley_mid");
|
|
}
|
|
|
|
//mxd
|
|
public override void OnTextureFit(FitTextureOptions options)
|
|
{
|
|
if(!General.Map.UDMF) return;
|
|
if(string.IsNullOrEmpty(Sidedef.MiddleTexture) || Sidedef.MiddleTexture == "-" || !Texture.IsImageLoaded) return;
|
|
FitTexture(options);
|
|
Setup();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Updates the value for texture skewing. Has to be done after the texture is set.
|
|
/// </summary>
|
|
public void UpdateSkew()
|
|
{
|
|
// Reset
|
|
skew = new Vector2f(0.0f);
|
|
|
|
if (!General.Map.Config.SidedefTextureSkewing)
|
|
return;
|
|
|
|
string skewtype = Sidedef.Fields.GetValue("skew_middle_type", "none");
|
|
|
|
if ((skewtype == "front_floor" || skewtype == "front_ceiling" || skewtype == "back_floor" || skewtype == "back_ceiling") && Texture != null)
|
|
{
|
|
double leftz, rightz;
|
|
|
|
if(skewtype == "front_floor")
|
|
{
|
|
if (Sidedef.IsFront)
|
|
{
|
|
Plane plane = Sector.GetSectorData().Floor.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
else
|
|
{
|
|
Plane plane = mode.GetSectorData(Sidedef.Other.Sector).Floor.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
}
|
|
else if(skewtype == "front_ceiling")
|
|
{
|
|
if (Sidedef.IsFront)
|
|
{
|
|
Plane plane = Sector.GetSectorData().Ceiling.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
else
|
|
{
|
|
Plane plane = mode.GetSectorData(Sidedef.Other.Sector).Ceiling.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
}
|
|
else if (skewtype == "back_floor")
|
|
{
|
|
if (Sidedef.IsFront)
|
|
{
|
|
Plane plane = mode.GetSectorData(Sidedef.Other.Sector).Floor.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
else
|
|
{
|
|
Plane plane = Sector.GetSectorData().Floor.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
}
|
|
else // Back ceiling
|
|
{
|
|
if (Sidedef.IsFront)
|
|
{
|
|
Plane plane = mode.GetSectorData(Sidedef.Other.Sector).Ceiling.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
else
|
|
{
|
|
Plane plane = Sector.GetSectorData().Ceiling.plane;
|
|
leftz = plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
}
|
|
|
|
skew = new Vector2f(
|
|
Vertices.Min(v => v.u), // Get the lowest horizontal texture offset
|
|
(float)((rightz - leftz) / Sidedef.Line.Length * ((double)Texture.Width / Texture.Height))
|
|
);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates clipping planes for skewed sidedefs
|
|
/// </summary>
|
|
/// <param name="textop">The texture's top position</param>
|
|
/// <param name="texbottom">The texture's bottom position</param>
|
|
/// <param name="sd">This sidedef's sector data</param>
|
|
/// <param name="osd">The other sidedef's sector data</param>
|
|
/// <returns>The top and bottom clipping planes</returns>
|
|
private (Plane, Plane) CreateSkewClipPlanes(double textop, double texbottom, SectorData sd, SectorData osd)
|
|
{
|
|
string skewtype = Sidedef.Fields.GetValue("skew_middle_type", "none");
|
|
if ((skewtype == "front_floor" || skewtype == "front_ceiling" || skewtype == "back_floor" || skewtype == "back_ceiling") && Texture != null)
|
|
{
|
|
double diff;
|
|
Line2D line;
|
|
|
|
if (skewtype == "front_ceiling")
|
|
(diff, line) = GetZDiff(false, true);
|
|
else if(skewtype == "back_ceiling")
|
|
(diff, line) = GetZDiff(false, false);
|
|
else if(skewtype == "front_floor")
|
|
(diff, line) = GetZDiff(true, true);
|
|
else // back_floor
|
|
(diff, line) = GetZDiff(true, false);
|
|
|
|
Vector2D v3 = line.GetPerpendicular() * 10 + line.v1;
|
|
|
|
Plane topplane = new Plane(
|
|
new Vector3D(line.v1, textop),
|
|
new Vector3D(line.v2, textop + diff),
|
|
new Vector3D(v3, textop),
|
|
false);
|
|
|
|
Plane bottomplane = new Plane(
|
|
new Vector3D(line.v1, texbottom),
|
|
new Vector3D(line.v2, texbottom + diff),
|
|
new Vector3D(v3, textop),
|
|
true);
|
|
|
|
return (topplane, bottomplane);
|
|
|
|
}
|
|
else // Invalid skew type
|
|
{
|
|
return (
|
|
new Plane(new Vector3D(0, 0, -1), textop),
|
|
new Plane(new Vector3D(0, 0, 1), -texbottom)
|
|
);
|
|
}
|
|
|
|
// Returns the z position at the start and end vertices of the line, and a line that always goes from left to right
|
|
(double, Line2D) GetZDiff(bool floor, bool front)
|
|
{
|
|
double leftz, rightz;
|
|
Vector2D ls, le;
|
|
|
|
if (Sidedef.IsFront)
|
|
{
|
|
ls = Sidedef.Line.Start.Position;
|
|
le = Sidedef.Line.End.Position;
|
|
|
|
if (floor)
|
|
{
|
|
if (front)
|
|
{
|
|
leftz = sd.Floor.plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = sd.Floor.plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
else
|
|
{
|
|
leftz = osd.Floor.plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = osd.Floor.plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (front)
|
|
{
|
|
leftz = sd.Ceiling.plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = sd.Ceiling.plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
else
|
|
{
|
|
leftz = osd.Ceiling.plane.GetZ(Sidedef.Line.Start.Position);
|
|
rightz = osd.Ceiling.plane.GetZ(Sidedef.Line.End.Position);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ls = Sidedef.Line.End.Position;
|
|
le = Sidedef.Line.Start.Position;
|
|
|
|
if (floor)
|
|
{
|
|
if (front)
|
|
{
|
|
leftz = osd.Floor.plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = osd.Floor.plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
else
|
|
{
|
|
leftz = sd.Floor.plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = sd.Floor.plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (front)
|
|
{
|
|
leftz = osd.Ceiling.plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = osd.Ceiling.plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
else
|
|
{
|
|
leftz = sd.Ceiling.plane.GetZ(Sidedef.Line.End.Position);
|
|
rightz = sd.Ceiling.plane.GetZ(Sidedef.Line.Start.Position);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (rightz - leftz, new Line2D(ls, le));
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|