mirror of
https://git.do.srb2.org/STJr/ZoneBuilder.git
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507 lines
19 KiB
C#
507 lines
19 KiB
C#
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#region ================== Copyright (c) 2007 Pascal vd Heiden
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/*
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* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
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* This program is released under GNU General Public License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#endregion
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#region ================== Namespaces
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using CodeImp.DoomBuilder.Map;
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using CodeImp.DoomBuilder.Geometry;
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using CodeImp.DoomBuilder.Rendering;
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using CodeImp.DoomBuilder.Types;
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using CodeImp.DoomBuilder.VisualModes;
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using CodeImp.DoomBuilder.Data;
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#endregion
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namespace CodeImp.DoomBuilder.BuilderModes
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{
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internal sealed class VisualMiddleDouble : BaseVisualGeometrySidedef
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{
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#region ================== Constants
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#endregion
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#region ================== Variables
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// TODO: Resolve this while retaining correct behavior
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private bool repeatmidtex;
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private Plane topclipplane;
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private Plane bottomclipplane;
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#endregion
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#region ================== Properties
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#endregion
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#region ================== Constructor / Setup
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// Constructor
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public VisualMiddleDouble(BaseVisualMode mode, VisualSector vs, Sidedef s) : base(mode, vs, s)
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{
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//mxd
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geometrytype = VisualGeometryType.WALL_MIDDLE;
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partname = "mid";
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// Set render pass
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this.RenderPass = RenderPass.Mask;
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// We have no destructor
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GC.SuppressFinalize(this);
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}
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// This builds the geometry. Returns false when no geometry created.
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public override bool Setup()
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{
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//mxd
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if(Sidedef.LongMiddleTexture == MapSet.EmptyLongName) return false;
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Vector2D vl, vr;
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//mxd. lightfog flag support
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int lightvalue;
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bool lightabsolute;
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GetLightValue(out lightvalue, out lightabsolute);
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Vector2D tscale = new Vector2D(Sidedef.Fields.GetValue("scalex_mid", 1.0f),
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Sidedef.Fields.GetValue("scaley_mid", 1.0f));
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Vector2D toffset = new Vector2D(Sidedef.Fields.GetValue("offsetx_mid", 0.0f),
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Sidedef.Fields.GetValue("offsety_mid", 0.0f));
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// Left and right vertices for this sidedef
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if(Sidedef.IsFront)
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{
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vl = new Vector2D(Sidedef.Line.Start.Position.x, Sidedef.Line.Start.Position.y);
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vr = new Vector2D(Sidedef.Line.End.Position.x, Sidedef.Line.End.Position.y);
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}
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else
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{
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vl = new Vector2D(Sidedef.Line.End.Position.x, Sidedef.Line.End.Position.y);
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vr = new Vector2D(Sidedef.Line.Start.Position.x, Sidedef.Line.Start.Position.y);
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}
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// Load sector data
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SectorData sd = mode.GetSectorData(Sidedef.Sector);
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SectorData osd = mode.GetSectorData(Sidedef.Other.Sector);
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if(!osd.Updated) osd.Update();
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// Load texture
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if(Sidedef.LongMiddleTexture != MapSet.EmptyLongName)
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{
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base.Texture = General.Map.Data.GetTextureImage(Sidedef.LongMiddleTexture);
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if(base.Texture == null || base.Texture is UnknownImage)
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{
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base.Texture = General.Map.Data.UnknownTexture3D;
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setuponloadedtexture = Sidedef.LongMiddleTexture;
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}
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else if(!base.Texture.IsImageLoaded)
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{
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setuponloadedtexture = Sidedef.LongMiddleTexture;
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}
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}
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else
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{
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// Use missing texture
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base.Texture = General.Map.Data.MissingTexture3D;
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setuponloadedtexture = 0;
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}
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// Get texture scaled size
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Vector2D tsz = new Vector2D(base.Texture.ScaledWidth, base.Texture.ScaledHeight);
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tsz = tsz / tscale;
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// Get texture offsets
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Vector2D tof = new Vector2D(Sidedef.OffsetX, Sidedef.OffsetY);
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tof = tof + toffset;
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tof = tof / tscale;
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if(General.Map.Config.ScaledTextureOffsets && !base.Texture.WorldPanning)
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tof = tof * base.Texture.Scale;
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// Determine texture coordinates plane as they would be in normal circumstances.
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// We can then use this plane to find any texture coordinate we need.
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// The logic here is the same as in the original VisualMiddleSingle (except that
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// the values are stored in a TexturePlane)
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// NOTE: I use a small bias for the floor height, because if the difference in
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// height is 0 then the TexturePlane doesn't work!
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Vector3D vlt, vlb, vrt, vrb;
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Vector2D tlt, tlb, trt, trb;
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float floorbias = (Sidedef.Sector.CeilHeight == Sidedef.Sector.FloorHeight) ? 1.0f : 0.0f;
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float geotop = Math.Min(Sidedef.Sector.CeilHeight, Sidedef.Other.Sector.CeilHeight);
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float geobottom = Math.Max(Sidedef.Sector.FloorHeight, Sidedef.Other.Sector.FloorHeight);
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float geoplanetop = Math.Min(sd.Ceiling.plane.GetZ(vl), osd.Ceiling.plane.GetZ(vl));
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float geoplanebottom = Math.Max(sd.Floor.plane.GetZ(vl), osd.Floor.plane.GetZ(vl));
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float textop = geoplanetop;
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float texbottom = geoplanebottom;
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float repetitions = 1;
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// Determine if we should repeat the middle texture
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bool srb2repeat = General.Map.SRB2 && Sidedef.Line.IsFlagSet(General.Map.Config.RepeatMidtextureFlag);
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bool doomrepeat = !General.Map.SRB2 && Sidedef.IsFlagSet("wrapmidtex") || Sidedef.Line.IsFlagSet("wrapmidtex");
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bool repeatmidtex = srb2repeat || doomrepeat;
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//A little redundant, but having a separate boolean value for each case makes the code a little more readable
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bool srb2repeatfixed = srb2repeat && Sidedef.OffsetX >= 4096;
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bool srb2repeatindefinite = srb2repeat && !srb2repeatfixed;
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float topheight = !General.Map.SRB2 || Sidedef.Line.IsFlagSet("128") ? geotop : geoplanetop;
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float bottomheight = !General.Map.SRB2 || Sidedef.Line.IsFlagSet("128") ? geobottom : geoplanebottom;
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if (!repeatmidtex || srb2repeatfixed) //Tile the texture a fixed number of times
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{
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// How often is it tiled?
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repetitions = srb2repeatfixed ? (Sidedef.OffsetX / 4096) + 1 : 1;
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// Determine top portion height
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if (IsLowerUnpegged())
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textop = bottomheight + tof.y + repetitions * Math.Abs(tsz.y);
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else
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textop = topheight + tof.y;
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// Calculate bottom portion height
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texbottom = textop - repetitions * Math.Abs(tsz.y);
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}
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else //Fill up the whole gap
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{
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repetitions = (geotop - geobottom) / Math.Abs(tsz.y);
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if ((geotop - geobottom) % Math.Abs(tsz.y) != 0)
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repetitions++; // tile an extra time to fill the gap
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if (srb2repeatindefinite) //Still consider offsets
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{
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if (IsLowerUnpegged())
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texbottom = bottomheight + tof.y;
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else
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textop = topheight + tof.y;
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}
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}
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float h = Math.Min(textop, geoplanetop);
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float l = Math.Max(texbottom, geoplanebottom);
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float texturevpeg;
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// When lower unpegged is set, the middle texture is bound to the bottom
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if (IsLowerUnpegged())
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texturevpeg = repetitions * Math.Abs(tsz.y) - h + texbottom;
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else
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texturevpeg = textop - h;
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tlt.x = tlb.x = tof.x;
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trt.x = trb.x = tof.x + Sidedef.Line.Length;
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tlt.y = trt.y = texturevpeg;
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tlb.y = trb.y = texturevpeg + h - (l + floorbias);
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float rh = h;
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float rl = l;
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// Correct to account for slopes
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if (General.Map.SRB2)
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{
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float midtextureslant;
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if (Sidedef.Line.IsFlagSet("128"))
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midtextureslant = 0;
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else if (IsLowerUnpegged())
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midtextureslant = osd.Floor.plane.GetZ(vl) < sd.Floor.plane.GetZ(vl)
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? sd.Floor.plane.GetZ(vr) - sd.Floor.plane.GetZ(vl)
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: osd.Floor.plane.GetZ(vr) - osd.Floor.plane.GetZ(vl);
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else
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midtextureslant = sd.Ceiling.plane.GetZ(vl) < osd.Ceiling.plane.GetZ(vl)
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? sd.Ceiling.plane.GetZ(vr) - sd.Ceiling.plane.GetZ(vl)
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: osd.Ceiling.plane.GetZ(vr) - osd.Ceiling.plane.GetZ(vl);
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float newtextop = textop + midtextureslant;
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float newtexbottom = texbottom + midtextureslant;
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float highcut = geotop + (sd.Ceiling.plane.GetZ(vl) < osd.Ceiling.plane.GetZ(vl)
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? sd.Ceiling.plane.GetZ(vr) - sd.Ceiling.plane.GetZ(vl)
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: osd.Ceiling.plane.GetZ(vr) - osd.Ceiling.plane.GetZ(vl));
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float lowcut = geobottom + (osd.Floor.plane.GetZ(vl) < sd.Floor.plane.GetZ(vl)
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? sd.Floor.plane.GetZ(vr) - sd.Floor.plane.GetZ(vl)
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: osd.Floor.plane.GetZ(vr) - osd.Floor.plane.GetZ(vl));
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// Texture stuff
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rh = Math.Min(highcut, newtextop);
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rl = Math.Max(newtexbottom, lowcut);
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float newtexturevpeg;
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// When lower unpegged is set, the middle texture is bound to the bottom
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if (IsLowerUnpegged())
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newtexturevpeg = repetitions * Math.Abs(tsz.y) - rh + newtexbottom;
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else
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newtexturevpeg = newtextop - rh;
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trt.y = newtexturevpeg;
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trb.y = newtexturevpeg + rh - (rl + floorbias);
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}
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// Transform pixel coordinates to texture coordinates
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tlt /= tsz;
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tlb /= tsz;
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trb /= tsz;
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trt /= tsz;
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// Geometry coordinates
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vlt = new Vector3D(vl.x, vl.y, h);
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vlb = new Vector3D(vl.x, vl.y, l);
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vrb = new Vector3D(vr.x, vr.y, rl);
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vrt = new Vector3D(vr.x, vr.y, rh);
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TexturePlane tp = new TexturePlane();
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tp.tlt = IsLowerUnpegged() ? tlb : tlt;
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tp.trb = trb;
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tp.trt = trt;
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tp.vlt = IsLowerUnpegged() ? vlb : vlt;
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tp.vrb = vrb;
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tp.vrt = vrt;
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// Keep top and bottom planes for intersection testing
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top = sd.Ceiling.plane;
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bottom = sd.Floor.plane;
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// Create initial polygon, which is just a quad between floor and ceiling
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WallPolygon poly = new WallPolygon();
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poly.Add(new Vector3D(vl.x, vl.y, sd.Floor.plane.GetZ(vl)));
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poly.Add(new Vector3D(vl.x, vl.y, sd.Ceiling.plane.GetZ(vl)));
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poly.Add(new Vector3D(vr.x, vr.y, sd.Ceiling.plane.GetZ(vr)));
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poly.Add(new Vector3D(vr.x, vr.y, sd.Floor.plane.GetZ(vr)));
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// Determine initial color
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int lightlevel = lightabsolute ? lightvalue : sd.Ceiling.brightnessbelow + lightvalue;
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//mxd. This calculates light with doom-style wall shading
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PixelColor wallbrightness = PixelColor.FromInt(mode.CalculateBrightness(lightlevel, Sidedef));
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PixelColor wallcolor = PixelColor.Modulate(sd.Ceiling.colorbelow, wallbrightness);
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fogfactor = CalculateFogFactor(lightlevel);
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poly.color = wallcolor.WithAlpha(255).ToInt();
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// Cut off the part below the other floor and above the other ceiling
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CropPoly(ref poly, osd.Ceiling.plane, true);
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CropPoly(ref poly, osd.Floor.plane, true);
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//Repeat middle texture
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if (!doomrepeat) //Need to crop at least some part of the texture
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{
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// Create crop planes (we also need these for intersection testing)
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if (!Sidedef.Line.IsFlagSet("128")) //Skew the texture according to the slope
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{
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if (IsLowerUnpegged()) //Skew according to floor
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{
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bottomclipplane = sd.Floor.plane.GetZ(vl) > osd.Floor.plane.GetZ(vl) ? sd.Floor.plane : osd.Floor.plane;
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Vector3D up = new Vector3D(0f, 0f, texbottom - bottomclipplane.GetZ(vl));
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bottomclipplane.Offset -= Vector3D.DotProduct(up, bottomclipplane.Normal);
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topclipplane = bottomclipplane.GetInverted();
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Vector3D up2 = new Vector3D(0f, 0f, textop - texbottom);
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topclipplane.Offset -= Vector3D.DotProduct(up2, topclipplane.Normal);
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}
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else //Skew according to ceiling
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{
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topclipplane = sd.Ceiling.plane.GetZ(vl) < osd.Ceiling.plane.GetZ(vl) ? sd.Ceiling.plane : osd.Ceiling.plane;
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Vector3D up = new Vector3D(0f, 0f, textop - topclipplane.GetZ(vl));
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topclipplane.Offset -= Vector3D.DotProduct(up, topclipplane.Normal);
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bottomclipplane = topclipplane.GetInverted();
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Vector3D down = new Vector3D(0f, 0f, texbottom - textop);
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bottomclipplane.Offset -= Vector3D.DotProduct(down, bottomclipplane.Normal);
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}
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}
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else //Don't skew textures
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{
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topclipplane = new Plane(new Vector3D(0, 0, -1), textop);
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bottomclipplane = new Plane(new Vector3D(0, 0, 1), -texbottom);
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}
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// Crop polygon by these heights
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// In SRB2, if the texture is tiled indefinitely, only crop towards the plane it's pegged to
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if (!srb2repeatindefinite || !IsLowerUnpegged())
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CropPoly(ref poly, topclipplane, true);
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if (!srb2repeatindefinite || IsLowerUnpegged())
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CropPoly(ref poly, bottomclipplane, true);
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}
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//mxd. In(G)ZDoom, middle sidedef parts are not clipped by extrafloors of any type...
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List<WallPolygon> polygons = new List<WallPolygon> { poly };
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//ClipExtraFloors(polygons, sd.ExtraFloors, true); //mxd
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//ClipExtraFloors(polygons, osd.ExtraFloors, true); //mxd
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//if(polygons.Count > 0)
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//{
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// Keep top and bottom planes for intersection testing
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top = osd.Ceiling.plane;
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bottom = osd.Floor.plane;
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// Process the polygon and create vertices
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List<WorldVertex> verts = CreatePolygonVertices(polygons, tp, sd, lightvalue, lightabsolute);
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if(verts.Count > 2)
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{
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// Apply alpha to vertices
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byte alpha = SetLinedefRenderstyle(true);
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if(alpha < 255)
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{
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for(int i = 0; i < verts.Count; i++)
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{
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WorldVertex v = verts[i];
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v.c = PixelColor.FromInt(v.c).WithAlpha(alpha).ToInt();
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verts[i] = v;
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}
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}
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base.SetVertices(verts);
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return true;
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}
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//}
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base.SetVertices(null); //mxd
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return false;
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}
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#endregion
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#region ================== Methods
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protected override bool IsLowerUnpegged()
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{
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bool lowerunpeggedflag = Sidedef.Line.IsFlagSet(General.Map.Config.LowerUnpeggedFlag);
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bool pegmidtextureflag = General.Map.SRB2 && Sidedef.Line.IsFlagSet(General.Map.Config.PegMidtextureFlag);
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return lowerunpeggedflag ^ pegmidtextureflag;
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}
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// This performs a fast test in object picking
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public override bool PickFastReject(Vector3D from, Vector3D to, Vector3D dir)
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{
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if(!repeatmidtex)
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{
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// When the texture is not repeated, leave when outside crop planes
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if((pickintersect.z < bottomclipplane.GetZ(pickintersect)) ||
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(pickintersect.z > topclipplane.GetZ(pickintersect)))
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return false;
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}
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return base.PickFastReject(from, to, dir);
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}
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//mxd. Alpha based picking
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public override bool PickAccurate(Vector3D from, Vector3D to, Vector3D dir, ref float u_ray)
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{
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if (!Texture.IsImageLoaded || (!Texture.IsTranslucent && !Texture.IsMasked)) return base.PickAccurate(from, to, dir, ref u_ray);
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float u;
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new Line2D(from, to).GetIntersection(Sidedef.Line.Line, out u);
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if(Sidedef != Sidedef.Line.Front) u = 1.0f - u;
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// Get correct offset to texture space...
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float zoffset;
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int ox = (int)Math.Floor((u * Sidedef.Line.Length * UniFields.GetFloat(Sidedef.Fields, "scalex_mid", 1.0f) / Texture.Scale.x + Sidedef.OffsetX + UniFields.GetFloat(Sidedef.Fields, "offsetx_mid")) % Texture.Width);
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int oy;
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if(repeatmidtex)
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{
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if(IsLowerUnpegged())
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zoffset = Sidedef.Sector.FloorHeight;
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else
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zoffset = Sidedef.Sector.CeilHeight;
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oy = (int)Math.Floor(((pickintersect.z - zoffset) * UniFields.GetFloat(Sidedef.Fields, "scaley_mid", 1.0f) / Texture.Scale.y - Sidedef.OffsetY - UniFields.GetFloat(Sidedef.Fields, "offsety_mid")) % Texture.Height);
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}
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else
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{
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zoffset = bottomclipplane.GetZ(pickintersect);
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oy = (int)Math.Ceiling(((pickintersect.z - zoffset) * UniFields.GetFloat(Sidedef.Fields, "scaley_mid", 1.0f) / Texture.Scale.y) % Texture.Height);
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}
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// Make sure offsets are inside of texture dimensions...
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if (ox < 0) ox += Texture.Width;
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if (oy < 0) oy += Texture.Height;
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// Check pixel alpha
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if (Texture.GetBitmap().GetPixel(General.Clamp(ox, 0, Texture.Width - 1), General.Clamp(Texture.Height - oy, 0, Texture.Height - 1)).A > 0)
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{
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return base.PickAccurate(from, to, dir, ref u_ray);
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}
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return false;
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}
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// Return texture name
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public override string GetTextureName()
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{
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return this.Sidedef.MiddleTexture;
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}
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// This changes the texture
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protected override void SetTexture(string texturename)
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{
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this.Sidedef.SetTextureMid(texturename);
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General.Map.Data.UpdateUsedTextures();
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this.Setup();
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}
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protected override void SetTextureOffsetX(int x)
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{
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Sidedef.Fields.BeforeFieldsChange();
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Sidedef.Fields["offsetx_mid"] = new UniValue(UniversalType.Float, (float)x);
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}
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|
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protected override void SetTextureOffsetY(int y)
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{
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Sidedef.Fields.BeforeFieldsChange();
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Sidedef.Fields["offsety_mid"] = new UniValue(UniversalType.Float, (float)y);
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}
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|
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protected override void MoveTextureOffset(Point xy)
|
|
{
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|
Sidedef.Fields.BeforeFieldsChange();
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|
float oldx = Sidedef.Fields.GetValue("offsetx_mid", 0.0f);
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|
float oldy = Sidedef.Fields.GetValue("offsety_mid", 0.0f);
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|
float scalex = Sidedef.Fields.GetValue("scalex_mid", 1.0f);
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float scaley = Sidedef.Fields.GetValue("scaley_mid", 1.0f);
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Sidedef.Fields["offsetx_mid"] = new UniValue(UniversalType.Float, GetRoundedTextureOffset(oldx, xy.X, scalex, Texture != null ? Texture.Width : -1)); //mxd
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|
|
|
//mxd. Don't clamp offsetY of clipped mid textures
|
|
bool dontClamp = (Texture == null || (!Sidedef.IsFlagSet("wrapmidtex") && !Sidedef.Line.IsFlagSet("wrapmidtex")));
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|
Sidedef.Fields["offsety_mid"] = new UniValue(UniversalType.Float, GetRoundedTextureOffset(oldy, xy.Y, scaley, dontClamp ? -1 : Texture.Height));
|
|
}
|
|
|
|
protected override Point GetTextureOffset()
|
|
{
|
|
float oldx = Sidedef.Fields.GetValue("offsetx_mid", 0.0f);
|
|
float oldy = Sidedef.Fields.GetValue("offsety_mid", 0.0f);
|
|
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();
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|