+ added drawCircle in renderer

KKK/game/CMakeLists.txt

@@ -11,6 +11,7 @@ set(GAME_SRC
     src/glclasses.cpp
     src/config.cpp
     src/simulation.cpp
+    src/renderer.cpp
   )
 
 set(GAME_HEADERS
@@ -19,6 +20,7 @@ set(GAME_HEADERS
   include/vector.h
   include/config.h
   include/simulation.h
+  include/renderer.h
   )
 
 include_directories(${CMAKE_CURRENT_BINARY_DIR})

KKK/game/include/renderer.h

@@ -1,12 +1,20 @@
 #pragma once
 
+#include <math.h>
+
 #include <epoxy/gl.h>
 #include <epoxy/glx.h>
 
+namespace endofthejedi {
+
 class Renderer {
  private:
  protected:
  public:
   Renderer();
   ~Renderer();
+  void drawCircle(float x, float y, float radius, float r,
+                  float g, float b);
 };
+
+}

KKK/game/src/renderer.cpp

@@ -1,5 +1,16 @@
 #include <include/renderer.h>
 
-Renderer::Renderer() {
+endofthejedi::Renderer::Renderer() {}
 
+endofthejedi::Renderer::~Renderer() {}
+
+void endofthejedi::Renderer::drawCircle(float x, float y, float radius, float r,
+                                        float g, float b) {
+  glBegin(GL_TRIANGLE_FAN);
+  glVertex2f(x, y); // center of circle
+  for (int i = 0; i <= 64; i++) {
+    glColor3f(r,g,b);
+    glVertex2f(x + (radius * cos(i * 2 * M_PI / 64)), y + (radius * sin(i * 2 * M_PI / 64)));
+  }
+  glEnd();
 }