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2023-08-07 19:29:24 +08:00
commit 34d6c5d489
4832 changed files with 1389451 additions and 0 deletions
--- a/Editor/Brush/BrushPlane.cpp
+++ b/Editor/Brush/BrushPlane.cpp
@@ -0,0 +1,160 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//  Crytek Engine Source File.
+//  Copyright (C), Crytek Studios, 2002.
+// -------------------------------------------------------------------------
+//  File name:   brushplane.cpp
+//  Version:     v1.00
+//  Created:     9/7/2002 by Timur.
+//  Compilers:   Visual Studio.NET
+//  Description: 
+// -------------------------------------------------------------------------
+//  History:
+//
+////////////////////////////////////////////////////////////////////////////
+
+#include "StdAfx.h"
+#include "BrushPlane.h"
+
+#include "BrushPoly.h"
+
+// Local variables.
+namespace
+{
+	Vec3d s_baseAxis[] =
+	{
+		Vec3d(0,0,1), Vec3d(1,0,0), Vec3d(0,-1,0),  Vec3d(1,0,0), Vec3d(0,-1,0),    // floor
+		Vec3d(0,0,-1), Vec3d(1,0,0), Vec3d(0,-1,0), Vec3d(1,0,0), Vec3d(0,-1,0),   // ceiling
+		Vec3d(1,0,0), Vec3d(0,1,0), Vec3d(0,0,-1),  Vec3d(0,1,0), Vec3d(0,0,-1),   // west wall
+		Vec3d(-1,0,0), Vec3d(0,1,0), Vec3d(0,0,-1), Vec3d(0,1,0), Vec3d(0,0,-1),   // east wall
+		Vec3d(0,1,0), Vec3d(1,0,0), Vec3d(0,0,-1), Vec3d(1,0,0), Vec3d(0,0,-1),    // south wall
+		Vec3d(0,-1,0), Vec3d(1,0,0), Vec3d(0,0,-1), Vec3d(1,0,0), Vec3d(0,0,-1)    // north wall
+	};
+}
+
+#define PLANE_NORMAL_EPSILON 0.0001f
+#define PLANE_DIST_EPSILON	0.001f
+
+//////////////////////////////////////////////////////////////////////////
+//
+// SBrushPlane implementation
+//
+//////////////////////////////////////////////////////////////////////////
+int SBrushPlane::Equal(SBrushPlane *b, int flip)
+{
+  Vec3d norm;
+  float dst;
+
+  if (flip)
+  {
+    norm[0] = -b->normal[0];
+    norm[1] = -b->normal[1];
+    norm[2] = -b->normal[2];
+    dst = -b->dist;
+  }
+  else
+  {
+    norm[0] = b->normal[0];
+    norm[1] = b->normal[1];
+    norm[2] = b->normal[2];
+    dst = b->dist;
+  }
+  if (fabs(norm[0]-normal[0]) < PLANE_NORMAL_EPSILON &&
+			fabs(norm[1]-normal[1]) < PLANE_NORMAL_EPSILON && 
+			fabs(norm[2]-normal[2]) < PLANE_NORMAL_EPSILON &&
+			fabs(dst-dist) < PLANE_DIST_EPSILON)
+    return true;
+  return false;
+}
+
+//////////////////////////////////////////////////////////////////////////
+void SBrushPlane::CalcTextureAxis(Vec3d& xv, Vec3d& yv, bool bTex)
+{
+  int   bestaxis;
+  float dot,best;
+  int   i;
+  
+  best = 0;
+  bestaxis = 0;
+  
+  for (i=0 ; i<6 ; i++)
+  {
+    dot = normal | s_baseAxis[i*5];
+    if (dot > best)
+    {
+      best = dot;
+      bestaxis = i;
+    }
+  }
+
+  if (bTex)
+  {
+    xv = s_baseAxis[bestaxis*5+1];
+    yv = s_baseAxis[bestaxis*5+2];
+  }
+  else
+  {
+    xv = s_baseAxis[bestaxis*5+3];
+    yv = s_baseAxis[bestaxis*5+4];
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////
+SBrushPoly *SBrushPlane::CreatePoly()
+{
+  int   i, x;
+  float max, v;
+  Vec3d org, vright, vup;
+  SBrushPoly *p;
+
+  max = -99999;
+  x = -1;
+  for (i=0 ; i<3; i++)
+  {
+    v = (float)fabs(normal[i]);
+    if (v > max)
+    {
+      x = i;
+      max = v;
+    }
+  }
+  if (x==-1)
+  {
+		CLogFile::WriteLine("Error: SBrushPlane::CreatePoly: no axis found");
+    return NULL;
+  }
+
+  vup(0,0,0);
+  if (x != 2)
+    vup = Vec3d(0,0,1);
+  else
+    vup = Vec3d(1,0,0);
+
+  v = vup | normal;
+  vup += normal * -v;
+  vup.Normalize();
+
+  org = normal * dist;
+
+  vright = vup ^ normal;
+
+  vup *= 32768.0f;
+  vright *= 32768.0f;
+
+// project a really big axis aligned box onto the plane
+  p = new SBrushPoly(4);
+
+  p->m_Pts[0].xyz = org - vright;
+  p->m_Pts[0].xyz += vup;
+
+  p->m_Pts[1].xyz = org + vright;
+  p->m_Pts[1].xyz += vup;
+
+  p->m_Pts[2].xyz = org + vright;
+  p->m_Pts[2].xyz -= vup;
+
+  p->m_Pts[3].xyz = org - vright;
+  p->m_Pts[3].xyz -= vup;
+
+  return p;
+}