We now have a triangle :D

Makefile

@@ -9,6 +9,8 @@ BUILDDIR = build/
 
 all: $(TARGET)
 
-$(TARGET): $(SRCDIR)main.cpp
+$(TARGET): $(SRCDIR)main.cpp $(BUILDDIR)
 	$(CC) $(CFLAGS) -o  $(BUILDDIR)$(TARGET) $(SRCDIR)main.cpp
 
+$(BUILDDIR):
+	mkdir -p $(BUILDDIR)

src/main.cpp

@@ -1,5 +1,6 @@
 //#include <iostream>
 #include <GL/glew.h>
+// Make sure Glew is loaded first
 #include <GL/gl.h>
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_opengl.h>
@@ -38,10 +39,34 @@ int main(int argc, char ** argv){
     // TODO: Throw an error lol
   }
 
-
   // Create event handling struct
   SDL_Event input;
 
+  // test triangle
+  float vertices[] = {-0.5f, -0.5f, 0.0f, 0.5f, -0.5f, 0.0f, 0.0f, 0.5f, 0.0f};
+
+  // Vertex Buffer Object
+  unsigned int VBO;
+  glGenBuffers(1, &VBO);
+
+  // Bind the buffer and size it to the data provided
+  glBindBuffer(GL_ARRAY_BUFFER, VBO);
+  glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+
+  // Create vertex array that will populate buffer
+  unsigned int VAO;
+  glCreateVertexArrays(1, &VAO);
+  glEnableVertexArrayAttrib(VAO, 0);
+
+  // set up vertex array atributes
+  glVertexArrayAttribFormat(VAO, 0, 3, GL_FLOAT, GL_FALSE, 0);
+
+  // sut up vbo for vao
+  glVertexArrayVertexBuffer(VAO, 0, VBO, 0, sizeof(float) * 3);
+
+  // shove vertex array into buffer
+  glBindVertexArray(VAO);
+
   // Game loop
   bool running = true;
   while (running) {
@@ -52,13 +77,14 @@ int main(int argc, char ** argv){
         running = false;
       }
       // TODO: Do something with keys lol
-
     };
     // Clear screen ready for next loop
     glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
     // TODO: Run game here lol
+    // Draw triangle
+    glDrawArrays(GL_TRIANGLES, 0, 3);
 
     SDL_GL_SwapWindow(window);
   };