From b6e5dca27781cfc1ee214b5d405996d2a3804b8a Mon Sep 17 00:00:00 2001
From: Raimon Zamora <jaildoctor@gmail.com>
Date: Fri, 30 May 2025 17:43:43 +0200
Subject: [PATCH] - [NEW] system.fps()

---
 lua.cpp  |  6 ++++++
 mini.cpp | 14 +++++++++++++-
 mini.h   |  1 +
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/lua.cpp b/lua.cpp
index 79f27a9..af0d453 100644
--- a/lua.cpp
+++ b/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);
diff --git a/mini.cpp b/mini.cpp
index 7b7e8ad..d292bb6 100644
--- a/mini.cpp
+++ b/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);
diff --git a/mini.h b/mini.h
index 0b32131..ee49b3b 100644
--- a/mini.h
+++ b/mini.h
@@ -220,6 +220,7 @@ float time();
 bool beat(int16_t i);
 
 int rnd(int x);
+int getfps();
 
 #define debug printf