UltimateZoneBuilder/Source/Plugins/BuilderModes/VisualModes/VisualMiddleSingle.cs
2023-09-11 00:37:20 +02:00

380 lines
12 KiB
C#

#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 VisualMiddleSingle : BaseVisualGeometrySidedef
{
#region ================== Constants
#endregion
#region ================== Variables
#endregion
#region ================== Properties
#endregion
#region ================== Constructor / Setup
// Constructor
public VisualMiddleSingle(BaseVisualMode mode, VisualSector vs, Sidedef s) : base(mode, vs, s)
{
//mxd
geometrytype = VisualGeometryType.WALL_MIDDLE;
partname = "mid";
// We have no destructor
GC.SuppressFinalize(this);
}
// This builds the geometry. Returns false when no geometry created.
public override bool Setup()
{
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);
// Apply sky hack?
UpdateSkyRenderFlag();
// Texture given?
if (Sidedef.LongMiddleTexture != MapSet.EmptyLongName)
{
// Load texture
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!
Vector3D vlt, vlb, vrt, vrb;
Vector2D tlt, tlb, trt, trb;
double texturevpeg = 0;
double floorbias = (Sidedef.Sector.CeilHeight == Sidedef.Sector.FloorHeight) ? 1.0f : 0.0f;
bool lowerunpegged = Sidedef.Line.IsFlagSet(General.Map.Config.LowerUnpeggedFlag);
bool nomidtextureskew = Sidedef.Line.IsFlagSet(General.Map.Config.NoMidtextureSkewFlag);
if (lowerunpegged)
{
// When lower unpegged is set, the middle texture is bound to the bottom
if (!nomidtextureskew)
{
texturevpeg = tsz.y - (sd.Ceiling.plane.GetZ(vl) - sd.Floor.plane.GetZ(vl));
}
else
{
texturevpeg = tsz.y - (Sidedef.Sector.CeilHeight - Sidedef.Sector.FloorHeight);
}
}
tlt.x = tlb.x = 0;
trt.x = trb.x = Sidedef.Line.Length;
tlt.y = trt.y = texturevpeg;
tlb.y = trb.y = texturevpeg + (Sidedef.Sector.CeilHeight - (Sidedef.Sector.FloorHeight + floorbias));
// Texture correction for slopes
if (nomidtextureskew)
{
tlt.y += Sidedef.Sector.CeilHeight - sd.Ceiling.plane.GetZ(vl);
trt.y += Sidedef.Sector.CeilHeight - sd.Ceiling.plane.GetZ(vr);
tlb.y += Sidedef.Sector.FloorHeight - sd.Floor.plane.GetZ(vl);
trb.y += Sidedef.Sector.FloorHeight - sd.Floor.plane.GetZ(vr);
}
else if (lowerunpegged)
{
tlt.y = tlb.y + sd.Floor.plane.GetZ(vl) - sd.Ceiling.plane.GetZ(vl);
trt.y = trb.y + sd.Floor.plane.GetZ(vr) - sd.Ceiling.plane.GetZ(vr);
}
else
{
tlb.y = tlt.y - (sd.Floor.plane.GetZ(vl) - sd.Ceiling.plane.GetZ(vl));
trb.y = trt.y - (sd.Floor.plane.GetZ(vr) - sd.Ceiling.plane.GetZ(vr));
}
// Apply texture offset
tlt += tof;
tlb += tof;
trb += tof;
trt += tof;
// Transform pixel coordinates to texture coordinates
tlt /= tsz;
tlb /= tsz;
trb /= tsz;
trt /= tsz;
// Geometry coordinates
vlt = new Vector3D(vl.x, vl.y, sd.Ceiling.plane.GetZ(vl));
vlb = new Vector3D(vl.x, vl.y, sd.Floor.plane.GetZ(vl) + floorbias);
vrb = new Vector3D(vr.x, vr.y, sd.Floor.plane.GetZ(vr));
vrt = new Vector3D(vr.x, vr.y, sd.Ceiling.plane.GetZ(vr));
TexturePlane tp = new TexturePlane();
tp.tlt = lowerunpegged ? tlb : tlt;
tp.trb = trb;
tp.trt = trt;
tp.vlt = lowerunpegged ? vlb : vlt;
tp.vrb = vrb;
tp.vrt = vrt;
// Get ceiling and floor heights
double fl = sd.Floor.plane.GetZ(vl);
double fr = sd.Floor.plane.GetZ(vr);
double cl = sd.Ceiling.plane.GetZ(vl);
double cr = sd.Ceiling.plane.GetZ(vr);
// Anything to see?
if (((cl - fl) > 0.01f) || ((cr - fr) > 0.01f))
{
// 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, fl));
poly.Add(new Vector3D(vl.x, vl.y, cl));
poly.Add(new Vector3D(vr.x, vr.y, cr));
poly.Add(new Vector3D(vr.x, vr.y, fr));
// 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 out pieces that overlap 3D floors in this sector
List<WallPolygon> polygons = new List<WallPolygon> { poly };
ClipExtraFloors(polygons, sd.ExtraFloors, false); //mxd
if (polygons.Count > 0)
{
// Process the polygon and create vertices
List<WorldVertex> verts = CreatePolygonVertices(polygons, tp, sd, lightvalue, lightabsolute);
if (verts.Count > 2)
{
base.SetVertices(verts);
// Set skewing
UpdateSkew();
return true;
}
}
}
base.SetVertices(null); //mxd
return false;
}
#endregion
#region ================== Methods
// 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
Sidedef.Fields["offsety_mid"] = new UniValue(UniversalType.Float, GetNewTexutreOffset(oldy, offsety, height)); //mxd // 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();
// Update linked effects
SectorData sd = mode.GetSectorDataEx(Sector.Sector);
if(sd != null) sd.Reset(true);
}
/// <summary>
/// Updates the value for texture skewing. Has to be done after the texture and vertices are 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");
// We don't have to check for back because this it's single-sided
if ((skewtype == "front_floor" || skewtype == "front_ceiling") && Texture != null)
{
double leftz, rightz;
Plane plane = skewtype == "front_floor" ? Sector.GetSectorData().Floor.plane : Sector.GetSectorData().Ceiling.plane;
leftz = plane.GetZ(Sidedef.Line.Start.Position);
rightz = plane.GetZ(Sidedef.Line.End.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))
);
}
}
internal void UpdateSkyRenderFlag()
{
renderassky = General.Map.Config.LinedefActions.ContainsKey(Sidedef.Line.Action) && General.Map.Config.LinedefActions[Sidedef.Line.Action].Id.ToLowerInvariant() == "srb2_horizonline";
}
#endregion
}
}