From f5d47fe7da73df097429d8f36aaf6055f390f864 Mon Sep 17 00:00:00 2001
From: Fabian Schlenz <mail@fabianonline.de>
Date: Wed, 23 Oct 2019 12:36:08 +0200
Subject: [PATCH] Keep track of the current frame number.

---
 include/prototypes.h | 1 +
 src/pitrix.cpp       | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/include/prototypes.h b/include/prototypes.h
index 0b24543..dfd87af 100644
--- a/include/prototypes.h
+++ b/include/prototypes.h
@@ -4,6 +4,7 @@
 
 extern uint8_t baseHue;
 extern char hostname[30];
+extern uint16_t frame;
 
 typedef struct {
 	uint8_t width;
diff --git a/src/pitrix.cpp b/src/pitrix.cpp
index 211f04b..1297a51 100644
--- a/src/pitrix.cpp
+++ b/src/pitrix.cpp
@@ -17,6 +17,7 @@ int loop_timeouts = 0;
 long loop_started_at = 0;
 uint8_t baseHue = 0; // defined as extern in prototypes.h
 char hostname[30]; // defined as extern in prototypes.h
+uint16_t frame = 0; // defined as extern in prototypes.h
 unsigned long _last_effect_loop_finished_at = 0;
 #ifdef RECORDER_ENABLE
 Recorder* recorder;
@@ -84,6 +85,7 @@ void loop() {
     }
 
     EVERY_N_MILLISECONDS(1000 / FPS) {
+    	frame++;
     	// Calculate the delay since the last time loop() was called.
     	// This way, the effect can handle varying frame rates.
         uint16_t last_loop_ago;