Adding light weight OOGL

NeverGreenGrove/NeverGreenGrove/NeverGreenGrove.vcxproj

@@ -160,10 +160,13 @@
     <Text Include="README.md" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="src\DrawableObject.h" />
     <ClInclude Include="src\GlfwWindow.h" />
+    <ClInclude Include="src\RenderMode.h" />
     <ClInclude Include="src\Shader.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="src\DrawableObject.cpp" />
     <ClCompile Include="src\GlfwWindow.cpp" />
     <ClCompile Include="src\Shader.cpp" />
     <ClCompile Include="src\NeverGreenGrove.cpp" />

NeverGreenGrove/NeverGreenGrove/NeverGreenGrove.vcxproj.filters

@@ -24,6 +24,12 @@
     <ClInclude Include="src\Shader.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="src\DrawableObject.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="src\RenderMode.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\GlfwWindow.cpp">
@@ -35,6 +41,9 @@
     <ClCompile Include="src\Shader.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="src\DrawableObject.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="shaders\fragment.shader">

NeverGreenGrove/NeverGreenGrove/src/DrawableObject.cpp

@@ -0,0 +1,89 @@
+/*
+MIT License
+
+Copyright (c) 2017 Chris McArthur, prince.chrismc(at)gmail(dot)com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#include "Shader.h"
+#include "DrawableObject.h"
+
+
+DrawableObject::DrawableObject(const std::vector<glm::vec3> verticies, const std::vector<glm::vec3> colors, const std::vector<GLuint> indicies)
+{
+   ShaderLinker* shaderProgram = &ShaderLinker::GetInstance();
+   GLuint PositonIndex = shaderProgram->GetAttributeLocation("position");
+   GLuint ColorIndex = shaderProgram->GetAttributeLocation("color");
+
+   glGenVertexArrays(1, &m_VAO);
+   glBindVertexArray(m_VAO);
+
+   glGenBuffers(1, &m_Verticies);
+   glBindBuffer(GL_ARRAY_BUFFER, m_Verticies);
+   glBufferData(GL_ARRAY_BUFFER, verticies.size() * sizeof(glm::vec3), &verticies.front(), GL_STATIC_DRAW);
+   glVertexAttribPointer(PositonIndex, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (GLvoid*)0);
+   glEnableVertexAttribArray(PositonIndex);
+   glBindBuffer(GL_ARRAY_BUFFER, 0);
+
+   glGenBuffers(1, &m_Colors);
+   glBindBuffer(GL_ARRAY_BUFFER, m_Colors);
+   glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(glm::vec3), &colors.front(), GL_STATIC_DRAW);
+   glVertexAttribPointer(ColorIndex, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (GLvoid*)0);
+   glEnableVertexAttribArray(ColorIndex);
+   glBindBuffer(GL_ARRAY_BUFFER, 0);
+
+   glGenBuffers(1, &m_Indicies);
+   glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_Indicies);
+   glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicies.size() * sizeof(GLuint), &indicies.front(), GL_STATIC_DRAW);
+   glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+   glBindVertexArray(0);
+
+   m_NumVertices = (GLsizei)verticies.size();
+   m_NumIndicies = (GLsizei)indicies.size();
+}
+
+void DrawableObject::Delete()
+{
+   glDeleteBuffers(1, &m_Verticies);
+   glDeleteBuffers(1, &m_Colors);
+   glDeleteBuffers(1, &m_Indicies);
+   glDeleteVertexArrays(1 ,&m_VAO);
+}
+
+void DrawableObject::Draw(const RenderMode& render_mode)
+{
+   switch (render_mode)
+   {
+   case RenderMode::POINTS:
+      glBindVertexArray(m_VAO);
+      glDrawArrays(GL_POINTS, 0, m_NumVertices);
+      glBindVertexArray(0);
+      break;
+
+   case RenderMode::TRIANGLES:
+      glBindVertexArray(m_VAO);
+      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_Indicies);
+      glDrawElements(GL_TRIANGLES, m_NumIndicies, GL_UNSIGNED_INT, NULL);
+      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+      glBindVertexArray(0);
+      break;
+   }
+}

NeverGreenGrove/NeverGreenGrove/src/DrawableObject.h

@@ -0,0 +1,49 @@
+/*
+MIT License
+
+Copyright (c) 2017 Chris McArthur, prince.chrismc(at)gmail(dot)com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#pragma once
+
+#include <vector>
+
+#include <gl\glew.h>
+#include "glm\vec3.hpp"
+
+#include "RenderMode.h"
+
+class DrawableObject
+{
+   public:
+   DrawableObject(const std::vector<glm::vec3> verticies, const std::vector<glm::vec3> colors, const std::vector<GLuint> indicies);
+   virtual void Draw(const RenderMode& render_mode);
+   void Delete();
+
+   protected:
+      GLuint m_VAO;
+      GLuint m_Verticies;
+      GLuint m_Colors;
+      GLuint m_Indicies;
+
+      GLsizei m_NumVertices;
+      GLsizei m_NumIndicies;
+};

NeverGreenGrove/NeverGreenGrove/src/RenderMode.h

@@ -0,0 +1,29 @@
+/*
+MIT License
+
+Copyright (c) 2017 Chris McArthur, prince.chrismc(at)gmail(dot)com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#pragma once
+
+#include <gl\GL.h>
+
+enum class RenderMode { POINTS = GL_POINTS, LINES = GL_LINES, TRIANGLES = GL_TRIANGLES };