The GtkRadiant sources as originally released under the GPL license.

2026-03-20 00:49:29 +01:00 · 2012-01-31 15:20:35 -06:00
commit 0991a5ce8b
1590 changed files with 431941 additions and 0 deletions
--- a/plugins/entity/rotation.h
+++ b/plugins/entity/rotation.h
@@ -0,0 +1,199 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant 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.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if !defined(INCLUDED_ROTATION_H)
+#define INCLUDED_ROTATION_H
+
+#include "ientity.h"
+
+#include "stream/stringstream.h"
+#include "math/quaternion.h"
+#include "generic/callback.h"
+#include "stringio.h"
+
+#include "angle.h"
+
+typedef float Float9[9];
+
+inline void default_rotation(Float9 rotation)
+{
+  rotation[0] = 1;
+  rotation[1] = 0;
+  rotation[2] = 0;
+  rotation[3] = 0;
+  rotation[4] = 1;
+  rotation[5] = 0;
+  rotation[6] = 0;
+  rotation[7] = 0;
+  rotation[8] = 1;
+}
+inline void write_rotation(const Float9 rotation, Entity* entity, const char* key = "rotation")
+{
+  if(rotation[0] == 1
+    && rotation[1] == 0
+    && rotation[2] == 0
+    && rotation[3] == 0
+    && rotation[4] == 1
+    && rotation[5] == 0
+    && rotation[6] == 0
+    && rotation[7] == 0
+    && rotation[8] == 1)
+  {
+    entity->setKeyValue(key, "");
+  }
+  else
+  {
+    StringOutputStream value(256);
+    value << rotation[0] << ' '
+      << rotation[1] << ' '
+      << rotation[2] << ' '
+      << rotation[3] << ' '
+      << rotation[4] << ' '
+      << rotation[5] << ' '
+      << rotation[6] << ' '
+      << rotation[7] << ' '
+      << rotation[8];
+    entity->setKeyValue(key, value.c_str());
+  }
+}
+inline void read_rotation(Float9 rotation, const char* value)
+{
+  if(!string_parse_vector(value, rotation, rotation + 9))
+  {
+    default_rotation(rotation);
+  }
+}
+
+inline Matrix4 rotation_toMatrix(const Float9 rotation)
+{
+  return Matrix4(
+    rotation[0],
+    rotation[1],
+    rotation[2],
+    0,
+    rotation[3],
+    rotation[4],
+    rotation[5],
+    0,
+    rotation[6],
+    rotation[7],
+    rotation[8],
+    0,
+    0,
+    0,
+    0,
+    1
+  );
+}
+
+inline void rotation_fromMatrix(Float9 rotation, const Matrix4& matrix)
+{
+  rotation[0] = matrix.xx();
+  rotation[1] = matrix.xy();
+  rotation[2] = matrix.xz();
+  rotation[3] = matrix.yx();
+  rotation[4] = matrix.yy();
+  rotation[5] = matrix.yz();
+  rotation[6] = matrix.zx();
+  rotation[7] = matrix.zy();
+  rotation[8] = matrix.zz();
+}
+
+inline void rotation_assign(Float9 rotation, const Float9 other)
+{
+  rotation[0] = other[0];
+  rotation[1] = other[1];
+  rotation[2] = other[2];
+  rotation[3] = other[3];
+  rotation[4] = other[4];
+  rotation[5] = other[5];
+  rotation[6] = other[6];
+  rotation[7] = other[7];
+  rotation[8] = other[8];
+}
+
+inline void rotation_rotate(Float9 rotation, const Quaternion& rotate)
+{
+  rotation_fromMatrix(rotation,
+    matrix4_multiplied_by_matrix4(
+      rotation_toMatrix(rotation),
+      matrix4_rotation_for_quaternion_quantised(rotate)
+    )
+  );
+}
+
+inline void read_angle(Float9 rotation, const char* value)
+{
+  float angle;
+  if(!string_parse_float(value, angle))
+  {
+    default_rotation(rotation);
+  }
+  else
+  {
+    rotation_fromMatrix(rotation,  matrix4_rotation_for_z_degrees(angle));
+  }
+}
+
+class RotationKey
+{
+  Callback m_rotationChanged;
+public:
+  Float9 m_rotation;
+
+
+  RotationKey(const Callback& rotationChanged)
+    : m_rotationChanged(rotationChanged)
+  {
+    default_rotation(m_rotation);
+  }
+
+  void angleChanged(const char* value)
+  {
+    read_angle(m_rotation, value);
+    m_rotationChanged();
+  }
+  typedef MemberCaller1<RotationKey, const char*, &RotationKey::angleChanged> AngleChangedCaller;
+
+  void rotationChanged(const char* value)
+  {
+    read_rotation(m_rotation, value);
+    m_rotationChanged();
+  }
+  typedef MemberCaller1<RotationKey, const char*, &RotationKey::rotationChanged> RotationChangedCaller;
+
+  void write(Entity* entity) const
+  {
+    Vector3 euler = matrix4_get_rotation_euler_xyz_degrees(rotation_toMatrix(m_rotation));
+    if(euler[0] == 0 && euler[1] == 0)
+    {
+      entity->setKeyValue("rotation", "");
+      write_angle(euler[2], entity);
+    }
+    else
+    {
+      entity->setKeyValue("angle", "");
+      write_rotation(m_rotation, entity);
+    }
+  }
+};
+
+#endif