From 9a6965d62578bc7260c7ba1d4860152721c12ea9 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Sat, 19 Aug 2017 16:25:39 -0600
Subject: Extra debouncing in PCINT (don't emit event if push was rejected).
 Fixed memory error in Baton -- long-press from off didn't restart at moon.
 Made Momentary and Baton go to sleep while light is off.

---
 spaghetti-monster/baton.c             |  6 ++++--
 spaghetti-monster/momentary.c         | 20 ++++++--------------
 spaghetti-monster/spaghetti-monster.h | 20 +++++++-------------
 3 files changed, 17 insertions(+), 29 deletions(-)

diff --git a/spaghetti-monster/baton.c b/spaghetti-monster/baton.c
index ea8d49f..02b7c00 100644
--- a/spaghetti-monster/baton.c
+++ b/spaghetti-monster/baton.c
@@ -48,7 +48,9 @@ uint8_t off_state(EventPtr event, uint16_t arg) {
     if (event == EV_enter_state) {
         PWM1_LVL = 0;
         PWM2_LVL = 0;
-        // TODO: standby_mode();
+        // sleep while off  (lower power use)
+        //empty_event_sequence();  // just in case (but shouldn't be needed)
+        standby_mode();
         return 0;
     }
     // hold (initially): go to lowest level, but allow abort for regular click
@@ -114,7 +116,7 @@ uint8_t steady_state(EventPtr event, uint16_t arg) {
     // hold: change brightness
     else if (event == EV_click1_hold) {
         if ((arg % HOLD_TIMEOUT) == 0) {
-            memorized_level = (memorized_level+1) % sizeof(pwm1_modes);
+            memorized_level = (actual_level+1) % sizeof(pwm1_modes);
             set_mode(memorized_level);
         }
         return 0;
diff --git a/spaghetti-monster/momentary.c b/spaghetti-monster/momentary.c
index a585152..23cc359 100644
--- a/spaghetti-monster/momentary.c
+++ b/spaghetti-monster/momentary.c
@@ -44,35 +44,28 @@ uint8_t momentary_state(EventPtr event, uint16_t arg) {
     if (event == EV_click1_press) {
         brightness = 255;
         light_on();
-        // don't attempt to parse multiple clicks
-        empty_event_sequence();
+        empty_event_sequence();  // don't attempt to parse multiple clicks
         return 0;
     }
 
     else if (event == EV_release) {
         light_off();
-        // don't attempt to parse multiple clicks
-        empty_event_sequence();
+        empty_event_sequence();  // don't attempt to parse multiple clicks
+        standby_mode();  // sleep while light is off
         return 0;
     }
 
-    else if (event == EV_debug) {
-        //PWM1_LVL = arg&0xff;
-        DEBUG_FLASH;
-        return 0;
-    }
-
-    // event not handled
-    return 1;
+    return 1;  // event not handled
 }
 
 // LVP / low-voltage protection
 void low_voltage() {
-    debug_blink(3);
     if (brightness > 0) {
+        debug_blink(3);
         brightness >>= 1;
         if (on_now) light_on();
     } else {
+        debug_blink(8);
         light_off();
         standby_mode();
     }
@@ -80,6 +73,5 @@ void low_voltage() {
 
 void setup() {
     debug_blink(2);
-
     push_state(momentary_state, 0);
 }
diff --git a/spaghetti-monster/spaghetti-monster.h b/spaghetti-monster/spaghetti-monster.h
index cfabea8..fe5e939 100644
--- a/spaghetti-monster/spaghetti-monster.h
+++ b/spaghetti-monster/spaghetti-monster.h
@@ -240,7 +240,7 @@ void empty_event_sequence() {
     for(uint8_t i=0; i<EV_MAX_LEN; i++) current_event[i] = 0;
 }
 
-void push_event(uint8_t ev_type) {
+uint8_t push_event(uint8_t ev_type) {
     ticks_since_last_event = 0;  // something happened
     uint8_t i;
     uint8_t prev_event = 0;  // never push the same event twice in a row
@@ -248,9 +248,11 @@ void push_event(uint8_t ev_type) {
         prev_event = current_event[i];
     if ((i < EV_MAX_LEN)  &&  (prev_event != ev_type)) {
         current_event[i] = ev_type;
+        return 1;  // event pushed
     } else {
         // TODO: ... something?
     }
+    return 0;  // no event pushed
 }
 
 // find and return last action in the current event sequence
@@ -420,28 +422,20 @@ uint8_t button_is_pressed() {
 //void button_change_interrupt() {
 ISR(PCINT0_vect) {
 
-    // this interrupt should not be re-entrant
-    //static volatile uint8_t lockout = 0;
-
-    //if (lockout) return;
-    //lockout = 1;
-
     //DEBUG_FLASH;
 
-    // something happened
-    //ticks_since_last_event = 0;
+    uint8_t pushed;
 
     // add event to current sequence
     if (button_is_pressed()) {
-        push_event(A_PRESS);
+        pushed = push_event(A_PRESS);
     } else {
-        push_event(A_RELEASE);
+        pushed = push_event(A_RELEASE);
     }
 
     // check if sequence matches any defined sequences
     // if so, send event to current state callback
-    emit_current_event(0);
-    //lockout = 0;
+    if (pushed) emit_current_event(0);
 }
 
 // clock tick -- this runs every 16ms (62.5 fps)
-- 
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