mirror of
https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
synced 2025-02-25 21:31:02 +00:00
292 lines
9.9 KiB
C#
292 lines
9.9 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;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text;
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using System.Windows.Forms;
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using System.IO;
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using System.Reflection;
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using System.Drawing;
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using System.ComponentModel;
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using CodeImp.DoomBuilder.Map;
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using CodeImp.DoomBuilder.Geometry;
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using System.Drawing.Imaging;
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using CodeImp.DoomBuilder.Data;
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using CodeImp.DoomBuilder.Editing;
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using CodeImp.DoomBuilder.IO;
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using CodeImp.DoomBuilder.Rendering;
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using CodeImp.DoomBuilder.VisualModes;
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#endregion
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namespace CodeImp.DoomBuilder.GZDoomEditing
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{
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internal sealed class VisualLower : 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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#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 VisualLower(BaseVisualMode mode, VisualSector vs, Sidedef s) : base(mode, vs, s)
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{
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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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SectorData sd = mode.GetSectorData(Sidedef.Sector);
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SectorData osd = mode.GetSectorData(Sidedef.Other.Sector);
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// Texture given?
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if((Sidedef.LowTexture.Length > 0) && (Sidedef.LowTexture[0] != '-'))
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{
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// Load texture
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base.Texture = General.Map.Data.GetTextureImage(Sidedef.LongLowTexture);
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if(base.Texture == null)
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{
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base.Texture = General.Map.Data.MissingTexture3D;
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setuponloadedtexture = Sidedef.LongLowTexture;
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}
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else
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{
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if(!base.Texture.IsImageLoaded)
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setuponloadedtexture = Sidedef.LongLowTexture;
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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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// 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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TexturePlane tp = new TexturePlane();
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if(Sidedef.Line.IsFlagSet(General.Map.Config.LowerUnpeggedFlag))
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{
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// When lower unpegged is set, the lower texture is bound to the bottom
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tp.tlt.y = (float)Sidedef.Sector.CeilHeight - (float)Sidedef.Other.Sector.FloorHeight;
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}
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tp.trb.x = tp.tlt.x + Sidedef.Line.Length;
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tp.trb.y = tp.tlt.y + (float)(Sidedef.Other.Sector.FloorHeight - Sidedef.Sector.FloorHeight);
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// Apply texture offset
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if (General.Map.Config.ScaledTextureOffsets && !base.Texture.WorldPanning)
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{
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tp.tlt += new Vector2D(Sidedef.OffsetX * base.Texture.Scale.x, Sidedef.OffsetY * base.Texture.Scale.y);
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tp.trb += new Vector2D(Sidedef.OffsetX * base.Texture.Scale.x, Sidedef.OffsetY * base.Texture.Scale.y);
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}
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else
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{
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tp.tlt += new Vector2D(Sidedef.OffsetX, Sidedef.OffsetY);
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tp.trb += new Vector2D(Sidedef.OffsetX, Sidedef.OffsetY);
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}
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// Transform pixel coordinates to texture coordinates
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tp.tlt /= tsz;
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tp.trb /= tsz;
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// Left top and right bottom of the geometry that
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if(Sidedef.IsFront)
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{
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tp.vlt = new Vector3D(Sidedef.Line.Start.Position.x, Sidedef.Line.Start.Position.y, Sidedef.Other.Sector.FloorHeight);
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tp.vrb = new Vector3D(Sidedef.Line.End.Position.x, Sidedef.Line.End.Position.y, Sidedef.Sector.FloorHeight);
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}
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else
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{
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tp.vlt = new Vector3D(Sidedef.Line.End.Position.x, Sidedef.Line.End.Position.y, Sidedef.Other.Sector.FloorHeight);
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tp.vrb = new Vector3D(Sidedef.Line.Start.Position.x, Sidedef.Line.Start.Position.y, Sidedef.Sector.FloorHeight);
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}
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// Make the right-top coordinates
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tp.trt = new Vector2D(tp.trb.x, tp.tlt.y);
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tp.vrt = new Vector3D(tp.vrb.x, tp.vrb.y, tp.vlt.z);
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//
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// - Geometry is horizontally split and ranges from one layer down to the next layer.
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// This is repeated for all layers.
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//
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// - We create geometry from the floor up to the floor of the other sector.
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//
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// - When the two layers intersect over Z, the geometry should not span the entire
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// width, but only up to the split position. The back side will handle the other
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// side of the split, if needed.
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//
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// Heights of the floor on the other side
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float ol = osd.Floor.plane.GetZ(tp.vlt);
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float or = osd.Floor.plane.GetZ(tp.vrt);
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Vector3D vol = new Vector3D(tp.vlt.x, tp.vlt.y, ol);
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Vector3D vor = new Vector3D(tp.vrt.x, tp.vrt.y, or);
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// Go for all levels to build geometry
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List<WorldVertex> verts = new List<WorldVertex>();
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for(int i = 0; i < (sd.Levels.Count - 1); i++)
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{
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SectorLevel lb = sd.Levels[i];
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SectorLevel lt = sd.Levels[i + 1];
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PixelColor wallbrightness = PixelColor.FromInt(mode.CalculateBrightness(lt.brightnessbelow));
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PixelColor wallcolor = PixelColor.Modulate(lt.colorbelow, wallbrightness);
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int c = wallcolor.WithAlpha(255).ToInt();
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// Get corner heights on the two planes
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float lbl = lb.plane.GetZ(tp.vlt);
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float lbr = lb.plane.GetZ(tp.vrt);
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float ltl = lt.plane.GetZ(tp.vlt);
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float ltr = lt.plane.GetZ(tp.vrt);
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// When both corners are above the heights of the floor on
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// the other side, then we can stop building.
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if(((lbl - ol) > 0.001f) && ((lbr - or) > 0.001f))
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break;
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// Make coordinates for the corners
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Vector3D vlb = new Vector3D(tp.vlt.x, tp.vlt.y, lbl);
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Vector3D vlt = new Vector3D(tp.vlt.x, tp.vlt.y, ltl);
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Vector3D vrb = new Vector3D(tp.vrb.x, tp.vrb.y, lbr);
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Vector3D vrt = new Vector3D(tp.vrt.x, tp.vrt.y, ltr);
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// Check if the plane on the other side crosses our top plane
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// Then we must create two vertical parts
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float int_u = -1.0f;
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if(lt.plane.GetIntersection(vol, vor, ref int_u) && (int_u > 0.0f) && (int_u < 1.0f))
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{
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// Determine top and bottom vertices in the middle (at the split)
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Vector3D vmt = vlt + (vrt - vlt) * int_u;
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Vector3D vmb = vlb + (vrb - vlb) * int_u;
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// Clip vertices to the heights of the plane on the other side
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if(vlt.z > ol) vlt.z = ol;
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if(vrt.z > or) vrt.z = or;
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CreateVerticalPart(verts, tp, lb, lt, vmb, vmt, vrb, vrt, c);
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CreateVerticalPart(verts, tp, lb, lt, vlb, vlt, vmb, vmt, c);
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}
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else
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{
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// Clip vertices to the heights of the plane on the other side
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if(vlt.z > ol) vlt.z = ol;
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if(vrt.z > or) vrt.z = or;
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// Create single vertical part
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CreateVerticalPart(verts, tp, lb, lt, vlb, vlt, vrb, vrt, c);
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}
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}
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if(verts.Count > 0)
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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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else
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{
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return false;
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}
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}
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// This creates the geometry for a vertical part of the wall
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private void CreateVerticalPart(List<WorldVertex> verts, TexturePlane tp, SectorLevel lb, SectorLevel lt,
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Vector3D vlb, Vector3D vlt, Vector3D vrb, Vector3D vrt, int c)
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{
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// Compare corner heights to see if we should split
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if((vlb.z < vlt.z) && (vrb.z >= vrt.z))
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{
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// Split vertically with geometry on the left
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float u_ray = 1.0f;
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lb.plane.GetIntersection(vlt, vrt, ref u_ray);
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Vector3D vs = vlt + (vrt - vlt) * u_ray;
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Vector2D tlb = tp.GetTextureCoordsAt(vlb);
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Vector2D tlt = tp.GetTextureCoordsAt(vlt);
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Vector2D ts = tp.GetTextureCoordsAt(vs);
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verts.Add(new WorldVertex(vlb.x, vlb.y, vlb.z, c, tlb.x, tlb.y));
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verts.Add(new WorldVertex(vlt.x, vlt.y, vlt.z, c, tlt.x, tlt.y));
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verts.Add(new WorldVertex(vs.x, vs.y, vs.z, c, ts.x, ts.y));
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}
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else if((vlb.z >= vlt.z) && (vrb.z < vrt.z))
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{
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// Split vertically with geometry on the right
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float u_ray = 0.0f;
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lb.plane.GetIntersection(vlt, vrt, ref u_ray);
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Vector3D vs = vlt + (vrt - vlt) * u_ray;
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Vector2D trb = tp.GetTextureCoordsAt(vrb);
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Vector2D trt = tp.GetTextureCoordsAt(vrt);
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Vector2D ts = tp.GetTextureCoordsAt(vs);
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verts.Add(new WorldVertex(vs.x, vs.y, vs.z, c, ts.x, ts.y));
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verts.Add(new WorldVertex(vrt.x, vrt.y, vrt.z, c, trt.x, trt.y));
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verts.Add(new WorldVertex(vrb.x, vrb.y, vrb.z, c, trb.x, trb.y));
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}
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else if((vlb.z < vlt.z) && (vrb.z < vrt.z))
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{
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// Span entire width
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Vector2D tlb = tp.GetTextureCoordsAt(vlb);
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Vector2D tlt = tp.GetTextureCoordsAt(vlt);
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Vector2D trb = tp.GetTextureCoordsAt(vrb);
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Vector2D trt = tp.GetTextureCoordsAt(vrt);
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verts.Add(new WorldVertex(vlb.x, vlb.y, vlb.z, c, tlb.x, tlb.y));
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verts.Add(new WorldVertex(vlt.x, vlt.y, vlt.z, c, tlt.x, tlt.y));
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verts.Add(new WorldVertex(vrt.x, vrt.y, vrt.z, c, trt.x, trt.y));
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verts.Add(new WorldVertex(vlb.x, vlb.y, vlb.z, c, tlb.x, tlb.y));
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verts.Add(new WorldVertex(vrt.x, vrt.y, vrt.z, c, trt.x, trt.y));
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verts.Add(new WorldVertex(vrb.x, vrb.y, vrb.z, c, trb.x, trb.y));
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}
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}
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#endregion
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#region ================== Methods
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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.LowTexture;
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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.SetTextureLow(texturename);
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General.Map.Data.UpdateUsedTextures();
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this.Setup();
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}
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#endregion
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}
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}
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