memory-related refactor

src/graphics/core/Shader.cpp

@@ -98,7 +98,7 @@ glshader compile_shader(GLenum type, const GLchar* source, const std::string& fi
     return glshader(new GLuint(shader), shader_deleter);
 }
 
-Shader* Shader::create(
+std::unique_ptr<Shader> Shader::create(
     const std::string& vertexFile, 
     const std::string& fragmentFile,
     const std::string& vertexCode,
@@ -125,5 +125,5 @@ Shader* Shader::create(
             "shader program linking failed:\n"+std::string(infoLog)
         );
     }
-    return new Shader(id);
+    return std::make_unique<Shader>(id);
 }

src/graphics/core/Shader.hpp

@@ -4,6 +4,7 @@
 #include "../../typedefs.hpp"
 
 #include <string>
+#include <memory>
 #include <unordered_map>
 #include <glm/glm.hpp>
 
@@ -36,7 +37,7 @@ public:
     /// @param vertexSource vertex shader source code
     /// @param fragmentSource fragment shader source code
     /// @return linked shader program containing vertex and fragment shaders
-    static Shader* create(
+    static std::unique_ptr<Shader> create(
         const std::string& vertexFile, 
         const std::string& fragmentFile,
         const std::string& vertexSource,