UltimateZoneBuilder/Source/Core/Rendering/SurfaceEntry.cs

90 lines
2.6 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.Drawing;
#endregion
namespace CodeImp.DoomBuilder.Rendering
{
// This is an entry is the surface manager and contains the information
// needed for a sector to place it's ceiling and floor surface geometry
// in a vertexbuffer. Sectors keep a reference to this entry to tell the
// surface manager to remove them if needed.
internal class SurfaceEntry
{
// Number of vertices in the geometry and index of the buffer
// This tells the surface manager which vertexbuffer this is in.
public int numvertices;
public int bufferindex;
// Bounding box for fast culling
public RectangleF bbox;
// Offset in the buffer (in number of vertices)
public int vertexoffset;
// Sector geometry (local copy used to quickly refill buffers)
// The sector must set these!
public FlatVertex[] floorvertices;
public FlatVertex[] ceilvertices;
// Sector images
// The sector must set these!
public long floortexture;
public long ceiltexture;
//
public double desaturation;
// Constructor
internal SurfaceEntry(int numvertices, int bufferindex, int vertexoffset)
{
this.numvertices = numvertices;
this.bufferindex = bufferindex;
this.vertexoffset = vertexoffset;
}
// Constructor that copies the entry, but does not copy the vertices
internal SurfaceEntry(SurfaceEntry oldentry)
{
this.numvertices = oldentry.numvertices;
this.bufferindex = oldentry.bufferindex;
this.vertexoffset = oldentry.vertexoffset;
}
// This calculates the bounding box from the vertices
public void UpdateBBox()
{
float left = float.MaxValue;
float right = float.MinValue;
float top = float.MaxValue;
float bottom = float.MinValue;
for(int i = 0; i < floorvertices.Length; i++)
{
if(floorvertices[i].x < left) left = floorvertices[i].x;
if(floorvertices[i].x > right) right = floorvertices[i].x;
if(floorvertices[i].y < top) top = floorvertices[i].y;
if(floorvertices[i].y > bottom) bottom = floorvertices[i].y;
}
bbox = new RectangleF(left, top, right - left, bottom - top);
}
}
}