balls are moving on my screen

src/body.cpp

@@ -81,6 +81,9 @@ bool load_body(body* out_body, const char* obj_filepath) {
     }
 
     uint vao, vbo, ebo;
+    vao = 0;
+    vbo = 0;
+    ebo = 0;
 
     glGenVertexArrays(1, &vao);
     glGenBuffers(1, &vbo);