Added VertexArray

NothinFancy/src/Application.cpp

@@ -56,7 +56,7 @@ namespace nf {
 			}
 		}
 		else {
-			Error("More than one default state defined");
+			Error("More than one default state defined!");
 		}
 	}
 
@@ -176,7 +176,7 @@ namespace nf {
 			RegisterClass(&wclass);
 		}
 		else {
-			Error("Cannot run two NF applications at once.");
+			Error("Cannot run two NF applications at once!");
 		}
 	}
 

NothinFancy/src/Renderer/Renderer.cpp

@@ -30,7 +30,7 @@ namespace nf {
 		wglMakeCurrent(m_hdc, m_hglrc);
 		glewExperimental = GL_TRUE;
 		if (glewInit() != GLEW_OK) {
-			Error("Could not initialize GLEW");
+			Error("Could not initialize GLEW!");
 		}
 		const int attrib[] = {
 			WGL_CONTEXT_MAJOR_VERSION_ARB, 3,

NothinFancy/src/Renderer/VertexArray.cpp

@@ -1,9 +1,46 @@
 #include "VertexArray.h"
 
 namespace nf {
-	VertexArray::VertexArray(VertexBuffer& buffer) {
+	unsigned int VertexBufferElement::getSizeOfType(unsigned int type) {
+		switch (type)
+		{
+		case GL_FLOAT:
+			return sizeof(type);
+		default:
+			return 0;
+		}
+	}
+
+	VertexArray::VertexArray(const void* bufferData, size_t bufferSize) :
+		m_id(0),
+		m_vb(bufferData, bufferSize),
+		m_hasLayout(false)
+	{
 		glGenVertexArrays(1, &m_id);
-		//TODO: Bind buffer and set the layout
+	}
+
+	void VertexArray::bind() {
+		glBindVertexArray(m_id);
+		m_vb.bind();
+		if (!m_hasLayout && m_vertexStride > 0) {
+			unsigned int offset = 0;
+			for (unsigned int i = 0; i < m_layoutElements.size(); i++) {
+				const VertexBufferElement& element = m_layoutElements[i];
+				glEnableVertexAttribArray(i);
+				glVertexAttribPointer(i, element.count, element.type, element.normalized, m_vertexStride, (const void*)offset);
+				offset += element.count * VertexBufferElement::getSizeOfType(element.type);
+			}
+			m_hasLayout = true;
+		}
+		else if(!m_hasLayout) {
+			Error("No layout specified for vertex buffer!");
+		}
+	}
+
+	template<>
+	void VertexArray::push<float>(unsigned int count) {
+		m_layoutElements.push_back({ GL_FLOAT, count, GL_FALSE });
+		m_vertexStride += VertexBufferElement::getSizeOfType(GL_FLOAT) * count;
 	}
 
 	VertexArray::~VertexArray() {

NothinFancy/src/Renderer/VertexBuffer.cpp

@@ -4,7 +4,7 @@ namespace nf {
 	VertexBuffer::VertexBuffer(const void* data, size_t size) {
 		glGenBuffers(1, &m_id);
 		glBindBuffer(GL_ARRAY_BUFFER, m_id);
-		glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW);//TODO: See if I need to change this to dynamic
+		glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW);
 	}
 
 	void VertexBuffer::bind() const {

NothinFancy/src/Utility.cpp

@@ -77,7 +77,7 @@ namespace nf {
 		std::ifstream in;
 		in.open(filename);
 		if (!in) {
-			Error("Cannot find file");
+			Error(("File \"" + (std::string)filename + (std::string)"\" could not be read!").c_str());
 			return NULL;
 		}
 		std::stringstream ss;

NothinFancy/src/include/Application.h

@@ -8,6 +8,8 @@
 #include "Utility.h"
 #include "IntroGamestate.h"
 #include "Renderer.h"
+//TODO: Check #include consistency
+//TODO: Document ALL frontend functions
 
 namespace nf {
 	class Application {

NothinFancy/src/include/IndexBuffer.h

@@ -1,6 +1,5 @@
 #pragma once
-
+#include "GL/glew.h"
-#include "Renderer.h"
 
 namespace nf {
 	class IndexBuffer {

NothinFancy/src/include/Utility.h

@@ -5,6 +5,7 @@
 #include <string>
 #include <fstream>
 #include <sstream>
+#include <Windows.h>
 
 namespace nf {
 #ifdef _DEBUG

NothinFancy/src/include/VertexArray.h

@@ -1,13 +1,35 @@
 #pragma once
+#ifdef NFENGINE
+#include "GL/glew.h"
+#endif
+#include <vector>
+
 #include "VertexBuffer.h"
+#include "Utility.h"
 
 namespace nf {
+	struct VertexBufferElement {
+		unsigned int type;
+		unsigned int count;
+		unsigned char normalized;
+
+		static unsigned int getSizeOfType(unsigned int type);
+	};
+
 	class VertexArray {
 	public:
-		VertexArray(VertexBuffer& buffer);
+		VertexArray(const void* bufferData, size_t bufferSize);
+
+		void bind();
+		template<typename T>
+		void push(unsigned int count);
 
 		~VertexArray();
 	private:
 		unsigned int m_id;
+		VertexBuffer m_vb;
+		bool m_hasLayout;
+		std::vector<VertexBufferElement> m_layoutElements;
+		unsigned int m_vertexStride;
 	};
 }

NothinFancy/src/include/VertexBuffer.h

@@ -1,6 +1,7 @@
 #pragma once
-
+#ifdef NFENGINE
-#include "Renderer.h"
+#include "GL/glew.h"
+#endif
 
 namespace nf {
 	class VertexBuffer {

notes.txt

@@ -15,6 +15,9 @@ Remember to use tasks (//TODO: )
 *Engine (Name?) "Nothin' Fancy"
 *Separate project
 *Namespaced
+Refactor NothinFancy.h to ONLY include stuff the frontend needs
+AND get rid of NFENGINE
+High CPU usage?
 *Debug and log system
 *NatVis
 *Config changing