Add git version/tag/commit to window title

CMakeLists.txt

@@ -1,12 +1,20 @@
-cmake_minimum_required(VERSION 2.8.9)
+cmake_minimum_required(VERSION 3.4)
 set(CMAKE_DISABLE_SOURCE_CHANGES ON)
 set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
 
+execute_process(
+	COMMAND git describe --tags --always
+	WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+	OUTPUT_VARIABLE GIT_COMMIT
+	OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+file(WRITE "src/gitparams.h" "#define GIT_CUR_COMMIT ${GIT_COMMIT}")
+
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libgcc -static-libstdc++")
 
-project(dungeon)
+project(dungeon LANGUAGES CXX)
 
 find_package(OpenGL REQUIRED)
 find_package(GLEW REQUIRED)

src/App.cpp

@@ -81,7 +81,9 @@ bool App::init() {
   SDL_LogVerbose(SDL_LOG_CATEGORY_SYSTEM, "Config Loaded.\n");
 
   renderer = new Renderer();
-  if (!renderer->Init("Dungeon", config.window.width, config.window.height)) {
+  std::string title = "Dungeon ";
+  title += version;
+  if (!renderer->Init(title, config.window.width, config.window.height)) {
     const char* error = SDL_GetError();
     SDL_LogCritical(SDL_LOG_CATEGORY_SYSTEM, "%s", error);
     SDL_ShowSimpleMessageBox(0, "Error", error, nullptr);
@@ -108,6 +110,7 @@ int App::start() {
   double currentTime = currTime();
   double accumulator = dt;
 
+  bool show_log = false;
   bool running = true;
   Gamestate* nextstate = nullptr;
 
@@ -190,7 +193,6 @@ int App::start() {
 
       accumulator -= dt;
     }
-
     renderer->Clear();
     current->draw(accumulator / dt);
     renderer->Present();

src/App.h

@@ -5,14 +5,17 @@
 #ifndef DUNGEON_APP_H
 #define DUNGEON_APP_H
 
-#pragma once
-
 class Gamestate;
 class Renderer;
 class Input;
 
+#include "gitparams.h"
+#define ADD_QUOTES_HELPER(s) #s
+#define ADD_QUOTES(s) ADD_QUOTES_HELPER(s)
+
 class App {
 public:
+  const char* version = ADD_QUOTES(GIT_CUR_COMMIT);
   Gamestate* current;
   Renderer* renderer;
   Input* input;