Draw nodes with draw_circle_filled, eliminate node texture

gamecore.cpp

@@ -8,7 +8,6 @@ GameCore::GameCore()
 {
     display = NULL;
     background = NULL;
-    node = NULL;
     is_running = true;
 }
 
@@ -46,17 +45,16 @@ bool GameCore::init()
     }
 
     background = DrawUtils::load("background.bmp");
-    node = DrawUtils::load("node.bmp");
 
-    if (background == NULL || node == NULL)
+    if (background == NULL)
     {
 #ifdef DEBUG
-	std::cerr << "GameCore::init(): error: Couldn't load an image file\n";
+	std::cerr << "GameCore::init(): error: Couldn't load background image\n";
 #endif
 	return false;
     }
 
-    DrawUtils::transpare(node, 255, 0, 255);
+    // DrawUtils::transpare(node, 255, 0, 255);
     // DrawUtils::transpare(move_template, 255, 0, 255);
     // SDL_SetAlpha(move_template, SDL_SRCALPHA, 128);
 
@@ -82,7 +80,8 @@ void GameCore::render()
 	 cursor != vertices.end(); cursor++)
     {
 	Vertex v = *(*cursor);
-	DrawUtils::draw(display, node, v.x_min, v.y_min);
+	DrawUtils::draw_circle_filled(display, v.x, v.y, NODE_SIZE>>1,
+				      0x000000);
     }
 
     for (list<Edge>::iterator cursor = edges.begin();
@@ -106,7 +105,6 @@ void GameCore::iterate()
 void GameCore::cleanup()
 {
     SDL_FreeSurface(background);
-    SDL_FreeSurface(node);
     SDL_FreeSurface(display);
     SDL_Quit();
 }

gamecore.h

@@ -37,7 +37,6 @@ class GameCore : public MainEvent
 
     // textures to draw
     SDL_Surface* background;
-    SDL_Surface* node;
 
     // data
     Graph graph;