From b411718c9406ba6decdbab8c0841e7f74172504f Mon Sep 17 00:00:00 2001
From: Alessandro Mauri <alemauri001@gmail.com>
Date: Sun, 15 Jun 2025 23:47:09 +0200
Subject: [PATCH] add fps counter

---
 src/main.c3 | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main.c3 b/src/main.c3
index 3618f18..0f9af6c 100644
--- a/src/main.c3
+++ b/src/main.c3
@@ -113,8 +113,10 @@ fn int main(String[] args)
 
 
 	isz frame;
+	double fps;
 	bool toggle = true;
 	time::Clock clock;
+	time::Clock fps_clock;
 	Times ui_times;
 	Times draw_times;
 
@@ -126,6 +128,7 @@ fn int main(String[] args)
 	bool quit = false;
 	while (!quit) {
 		clock.mark();
+		fps_clock.mark();
 		
 		// FIXME: modkeys input is broken
 		ugui::ModKeys mod;
@@ -268,7 +271,7 @@ fn int main(String[] args)
 		ui.div_begin("fps", {0, ui.height-100, -300, 100})!!;
 		{
 			ui.layout_set_column()!!;
-			ui.text_unbounded("frame number", string::tformat("frame %d", frame))!!;
+			ui.text_unbounded("frame number", string::tformat("frame %d, fps = %.2f", frame, fps))!!;
 			ui.text_unbounded("draw times", string::tformat("ui avg: %s\ndraw avg: %s\nTOT: %s", uts.avg, dts.avg, uts.avg+dts.avg))!!;
 			ui.text_unbounded("ui text input", (String)ui.input.keyboard.text[..])!!;
 		};
@@ -292,6 +295,8 @@ fn int main(String[] args)
 		//draw_times.print_stats();
 		/* End Drawing */
 
+
+		fps = 1.0 / fps_clock.mark().to_sec();
 		frame++;
 	}