cmd options

README.md

@@ -1,4 +1,9 @@
 Klassische Kepler Kriege
-===
+========================
 
 Game based on NewtonWars (https://github.com/Draradech/NewtonWars), rewritten in C++ with some more fancy OpenGL shitz.
+
+dependencies
+------------
+
+libepoxy-dev

game/main.cpp

@@ -1,10 +1,60 @@
 #include "opengl.h"
 #include <iostream>
+#include <getopt.h>
 
 //#include "triangle_window.h"
 #include "game_window.h"
+#include "options.hpp"
+
+
+using namespace std;
+
+int main(int argc, char *argv[]) {
+
+    char c;
+
+    static struct option long_options[] =
+        {
+          /* These options set a flag. */
+//        {"verbose", no_argument,       &verbose_flag, 1},
+//        {"brief",   no_argument,       &verbose_flag, 0},
+          /* These options don’t set a flag.
+             We distinguish them by their indices. */
+//        {"add",     no_argument,       0, 'a'},
+//        {"append",  no_argument,       0, 'b'},
+//        {"delete",  required_argument, 0, 'd'},
+//        {"create",  required_argument, 0, 'c'},
+          {"fps",     no_argument,       0, 'f'},
+          {0, 0, 0, 0}
+        };
+
+    int option_index = 0;
+
+    while(1){
+        c = getopt_long (argc, argv, "abc:d:f",
+                       long_options, &option_index);
+        if (c == -1)
+            break;
+
+        switch (c)
+        {
+            case 'f':
+                SET_FLAG(SHOW_FPS,true);
+                break;
+                /*case 'c':
+                    cvalue = optarg;
+                    break;
+                */
+
+            case '?':
+                /* getopt_long already printed an error message. */
+                break;
+
+            default:
+                abort();
+        }
+    }
 
-int main(int argc, const char *argv[]) {
     GameWindow window(500, 500);
     window.set_maxfps(60.0);
     window.loop();

game/options.hpp

@@ -0,0 +1,21 @@
+
+#define TEST_FLAG1 0
+#define SHOW_FPS 1
+#define TEST_FLAG2 2
+//...
+
+
+
+
+#define SET_FLAG(x,y) optionsFlags&=(~((1)<<x));optionsFlags|=((y&1)<<x)
+#define ISSET_FLAG(x) (optionsFlags&((1)<<x))
+uint64_t optionsFlags;
+
+/*
+ * usage:
+ * SET_FLAG(SHOW_FPS,true);
+ *
+ * if(ISSET_FLAG(SHOW_FPS)){
+ * ...
+ * }
+ */