Issue ToyKeeper#69: tint_ramp_direction does not get reset when chann…

…el mode arg

is changed by manual memory

ToyKeeper#69

ui/anduril/channel-modes.c

@@ -71,6 +71,17 @@ uint8_t channel_mode_state(Event event, uint16_t arg) {
         if (! arg) {
             active = 1;  // first frame means this is for us
             past_edge_counter = 0;  // doesn't start until user hits the edge
+
+            // Issue 69: if manual memory was set to an arg of 0 or 255, this could result in an incorrect
+            // ramp direction with the arg resetting, so make sure tint_ramp_direction is set correctly
+            if (channel_has_args(channel_mode)) {
+                if (cfg.channel_mode_args[channel_mode] == 0){
+                    tint_ramp_direction = 1;
+                }
+                else if (cfg.channel_mode_args[channel_mode] == 255){
+                    tint_ramp_direction = -1;
+                }
+            }
         }
         // ignore event if we weren't the ones who handled the first frame
         if (! active) return EVENT_NOT_HANDLED;