diff --git a/imgui_demo.cpp b/imgui_demo.cpp index 7af4c5d57..a50d54d50 100644 --- a/imgui_demo.cpp +++ b/imgui_demo.cpp @@ -10,9 +10,9 @@ // Read imgui.cpp for more details, documentation and comments. // Get the latest version at https://github.com/ocornut/imgui -// ------------------------------------------------- +//--------------------------------------------------- // PLEASE DO NOT REMOVE THIS FILE FROM YOUR PROJECT! -// ------------------------------------------------- +//--------------------------------------------------- // Message to the person tempted to delete this file when integrating Dear ImGui into their codebase: // Think again! It is the most useful reference code that you and other coders will want to refer to and call. // Have the ImGui::ShowDemoWindow() function wired in an always-available debug menu of your game/app! @@ -26,14 +26,23 @@ // Thank you, // -Your beloved friend, imgui_demo.cpp (which you won't delete) -// Message to beginner C/C++ programmers about the meaning of the 'static' keyword: -// In this demo code, we frequently use 'static' variables inside functions. A static variable persists across calls, -// so it is essentially like a global variable but declared inside the scope of the function. We do this as a way to -// gather code and data in the same place, to make the demo source code faster to read, faster to write, and smaller -// in size. It also happens to be a convenient way of storing simple UI related information as long as your function -// doesn't need to be reentrant or used in multiple threads. This might be a pattern you will want to use in your code, -// but most of the real data you would be editing is likely going to be stored outside your functions. +//-------------------------------------------- +// ABOUT THE MEANING OF THE 'static' KEYWORD: +//-------------------------------------------- +// In this demo code, we frequently use 'static' variables inside functions. +// A static variable persists across calls. It is essentially a global variable but declared inside the scope of the function. +// Think of "static int n = 0;" as "global int n = 0;" ! +// We do this IN THE DEMO because we want: +// - to gather code and data in the same place. +// - to make the demo source code faster to read, faster to change, smaller in size. +// - it is also a convenient way of storing simple UI related information as long as your function +// doesn't need to be reentrant or used in multiple threads. +// This might be a pattern you will want to use in your code, but most of the data you would be working +// with in a complex codebase is likely going to be stored outside your functions. +//----------------------------------------- +// ABOUT THE CODING STYLE OF OUR DEMO CODE +//----------------------------------------- // The Demo code in this file is designed to be easy to copy-and-paste into your application! // Because of this: // - We never omit the ImGui:: prefix when calling functions, even though most code here is in the same namespace.