some effc++ fixes

shaders.hh

@@ -34,8 +34,7 @@ public:
   Shader() : _shaderID(0) {
   }
   
-  Shader(std::string const& program, GLenum type) {
-    _shaderID = glCreateShader(type);
+  Shader(std::string const& program, GLenum type) : _shaderID(glCreateShader(type)) {
     const char* const arr[] = {program.c_str()};
     glShaderSource(_shaderID, 1, arr, NULL);
     glCompileShader(_shaderID);
@@ -62,12 +61,11 @@ public:
     glDeleteShader(_shaderID);
   }
 
-protected:
   unsigned getID() const {
     return _shaderID;
   }
-
-  friend class Program;
+  
+protected:
  
   unsigned int _shaderID;
 };
@@ -78,7 +76,7 @@ public:
   VertexShader(std::string const& program) : Shader(program, GL_VERTEX_SHADER) {
   }
 
-  virtual ~VertexShader() {
+  ~VertexShader() override {
   }
 };
 
@@ -102,9 +100,8 @@ public:
 
 class Program {
 public:
-  Program(VertexShader& vertex, FragmentShader& frag) : _geom(nullptr), _vertex(vertex), _frag(frag) {
-    _progID = glCreateProgram();
-    
+  Program(VertexShader& vertex, FragmentShader& frag)
+    : _geom(nullptr), _vertex(vertex), _frag(frag), _progID(glCreateProgram()) {  
     glAttachShader(_progID, _vertex.getID());
     glAttachShader(_progID, _frag.getID());
 
@@ -131,9 +128,8 @@ public:
     glDetachShader(_progID, _frag.getID());
   }
 
-  Program(GeometryShader& geom, VertexShader& vertex, FragmentShader& frag) : _geom(&geom), _vertex(vertex), _frag(frag) {
-    _progID = glCreateProgram();
-
+  Program(GeometryShader& geom, VertexShader& vertex, FragmentShader& frag)
+    : _geom(&geom), _vertex(vertex), _frag(frag), _progID(glCreateProgram()) {
     glAttachShader(_progID, _geom->getID());
     glAttachShader(_progID, _vertex.getID());
     glAttachShader(_progID, _frag.getID());