Manage animations via a central controller

include/Animation/AnimationController.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <memory>
+
+#include "Animation.h"
+
+class AnimationController
+{
+    public:
+        AnimationController(Fader *fader);
+
+        void setAnimation(std::unique_ptr<Animation> anim, bool transition = true);
+        void loop(void);
+
+    private:
+        Fader *m_fader;
+        std::unique_ptr<Animation> m_animation;
+
+        uint32_t m_transitionTime;
+        uint64_t m_frame;
+};

src/Animation/AnimationController.cpp

@@ -0,0 +1,30 @@
+#include "Animation/AnimationController.h"
+
+AnimationController::AnimationController(Fader *fader)
+    : m_fader(fader), m_transitionTime(0), m_frame(0)
+{}
+
+void AnimationController::setAnimation(std::unique_ptr<Animation> anim, bool transition)
+{
+    m_frame = 0;
+
+    m_animation = std::move(anim);
+
+    if(transition) {
+        m_transitionTime = 256/8;
+
+        m_fader->set_fadestep(8);
+        m_fader->fade_color(Fader::Color{0, 0, 0, 0});
+    }
+}
+
+void AnimationController::loop(void)
+{
+    if(m_transitionTime > 0) {
+        m_transitionTime--;
+    } else if(m_animation) {
+        m_animation->loop(m_frame);
+    }
+
+    m_frame++;
+}

src/main.cpp

@@ -13,6 +13,7 @@
 #include "Config.h"
 
 #include "Animation/AllAnimations.h"
+#include "Animation/AnimationController.h"
 
 #include <esp32_digital_led_lib.h>
 #include <esp32_digital_led_funcs.h>
@@ -35,7 +36,7 @@ Fader ledFader(NUM_STRIPS, NUM_LEDS, 1, FLIP_STRIPS_MASK);
 UDPProto udpProto(&ledFader);
 UpdateServer *updateServer;
 
-std::unique_ptr<Animation> currentAnimation = nullptr;
+AnimationController animController(&ledFader);
 
 bool initLEDs()
 {
@@ -93,9 +94,7 @@ static void ledTask( void * parameter )
 
     uint32_t start_time = micros();
 
-    if(currentAnimation) {
-      currentAnimation->loop(frame);
-    }
+    animController.loop();
 
     if((WiFi.status() == WL_CONNECTED) || (WiFi.getMode() == WIFI_MODE_AP)) {
       udpProto.loop();
@@ -210,7 +209,7 @@ void setup()
   Serial.println();
   Serial.println();
 
-  currentAnimation = std::unique_ptr<Animation>(new ConnectingAnimation(&ledFader));
+  animController.setAnimation(std::unique_ptr<Animation>(new ConnectingAnimation(&ledFader)));
 
   xTaskCreate(
       ledTask,           /* Task function. */