Add AbstractTextDumper to implement stream holding and indendation

src/ObjWriting/Dumping/MapFile/MapFileDumper.cpp

@@ -32,32 +32,13 @@ MapFileDumper::PhysicsCylinder::PhysicsCylinder(const Vec3 middlePoint, const fl
 }
 
 MapFileDumper::MapFileDumper(std::ostream& stream)
-    : m_stream(stream),
+    : AbstractTextDumper(stream),
       m_flags{},
-      m_indent(0u),
       m_entity_index(0u),
       m_brush_index(0u)
 {
 }
 
-void MapFileDumper::Indent() const
-{
-    for (auto i = 0u; i < m_indent; i++)
-        m_stream << "  ";
-}
-
-void MapFileDumper::IncIndent()
-{
-    ++m_indent;
-}
-
-void MapFileDumper::DecIndent()
-{
-    assert(m_indent > 0);
-    if (m_indent > 0)
-        m_indent--;
-}
-
 void MapFileDumper::Init() const
 {
     m_stream << "iwmap 4\n";

src/ObjWriting/Dumping/MapFile/MapFileDumper.h

@@ -2,7 +2,9 @@
 
 #include <ostream>
 
-class MapFileDumper
+#include "Dumping/AbstractTextDumper.h"
+
+class MapFileDumper : AbstractTextDumper
 {
 public:
     union Vec3
@@ -13,6 +15,7 @@ public:
             float m_y;
             float m_z;
         };
+
         float v[3];
 
         Vec3(float x, float y, float z);
@@ -39,21 +42,15 @@ public:
     };
 
 private:
-    std::ostream& m_stream;
-
     struct
     {
         bool m_in_entity : 1;
         bool m_in_brush : 1;
     } m_flags;
-    size_t m_indent;
+
     size_t m_entity_index;
     size_t m_brush_index;
 
-    void Indent() const;
-    void IncIndent();
-    void DecIndent();
-
 public:
     explicit MapFileDumper(std::ostream& stream);