- [NEW] system.fps()

lua.cpp

@@ -670,6 +670,11 @@ extern "C" {
         return 0;
     }
 
+    static int cpp_sys_fps(lua_State *L) {
+        lua_pushnumber(L, getfps());
+        return 1;
+    }
+
 
     // win
     // ===============================================
@@ -922,6 +927,7 @@ void push_lua_funcs() {
     lua_pushcfunction(L,cpp_sys_updateTimeout);     lua_setfield(L, -2, "updateOnEventsAndTimeout");
     lua_pushcfunction(L,cpp_sys_dir);               lua_setfield(L, -2, "getFilesInDataDirectory");
     lua_pushcfunction(L,cpp_sys_exit);              lua_setfield(L, -2, "quit");
+    lua_pushcfunction(L,cpp_sys_fps);               lua_setfield(L, -2, "fps");
     lua_setglobal(L, "system");
 
     lua_newtable(L);

mini.cpp

@@ -23,7 +23,9 @@ struct surface_t {
     uint32_t size;
 };
 
-
+int         fps=0;
+int         fps_counter=0;
+uint32_t    fps_timer=0;
 char        window_title[256];
 char        config_folder[256];
 uint16_t    screen_width = 160;
@@ -475,6 +477,12 @@ int main(int argc,char*argv[]){
             SDL_UnlockTexture(mini_bak);
             SDL_RenderCopy(mini_ren, mini_bak, NULL, NULL);
             SDL_RenderPresent(mini_ren);
+            fps_counter++;
+            if (SDL_GetTicks()>=(fps_timer+1000)) {
+                fps = fps_counter;
+                fps_counter=0;
+                fps_timer = SDL_GetTicks();
+            }
         }
         lua_quit();
         quitaudio();
@@ -1146,6 +1154,10 @@ int rnd(int x) {
     return rand()%x;
 }
 
+int getfps() {
+    return fps;
+}
+
 void playmusic(const char *filename, const int loop) {
     int size;
     char *buffer = file_getfilebuffer(filename, size);

mini.h

@@ -220,6 +220,7 @@ float time();
 bool beat(int16_t i);
 
 int rnd(int x);
+int getfps();
 
 #define debug printf