Handling MQTT commands formatted like HTTP requests.

src/main.cpp

@@ -14,10 +14,12 @@ std::list<Edge*> edges;
 std::vector<Corner*> corners;
 
 CRGB leds[LED_COUNT];
+CRGB color = CRGB::Pink;
 
 AnimationMode mode = AM_CORNERS;
 AnimationMode temp_mode;
 unsigned long temp_mode_until;
+int return_to_brightness = -1;
 
 unsigned long last_loop = 0;
 
@@ -136,6 +138,10 @@ void loop() {
 					active_mode = temp_mode;
 				} else {
 					temp_mode_until = 0;
+					if (return_to_brightness != -1) {
+						FastLED.setBrightness(return_to_brightness);
+						return_to_brightness = -1;
+					}
 				}
 			}
 
@@ -180,8 +186,18 @@ void loop() {
 				}
 
 				if (millis() / 1000 > last_loop / 1000) {
-					nodes[0]->blend_to(((millis() / 1000) % 2 == 0) ? CRGB::Black : CRGB::Orange, 0, 64);
+					nodes[0]->blend_to(((millis() / 1000) % 2 == 0) ? CRGB::Black : color, 0, 64);
 				}
+
+			} else if (active_mode == AM_OFF) {
+				for(Node* node : nodes) {
+					node->set_color(CRGB::Black);
+				}
+			} else { // This includes AM_ERROR
+				for(Node* node : nodes) {
+					node->set_color(CRGB::Black);
+				}
+				nodes[0]->set_color(CRGB::Red);
 			}
 
 			last_loop = millis();