Add support for multiple light bars/remotes (#3), bump to version 0.2

remote.cpp

@@ -0,0 +1,70 @@
+#include "remote.h"
+
+Remote::Remote(Radio *radio, uint32_t serial, const char *name)
+{
+    this->radio = radio;
+    this->serial = serial;
+    this->name = name;
+
+    this->radio->addRemote(this);
+
+    this->serialString = "0x" + String(this->serial, HEX);
+}
+
+Remote::~Remote()
+{
+}
+
+uint32_t Remote::getSerial()
+{
+    return this->serial;
+}
+
+String Remote::getSerialString()
+{
+    return this->serialString;
+}
+
+const char *Remote::getName()
+{
+    return this->name;
+}
+
+void Remote::callback(byte command, byte options)
+{
+    for (int i = 0; i < this->numCommandListeners; i++)
+    {
+        this->commandListeners[i](this, command, options);
+    }
+}
+
+bool Remote::registerCommandListener(std::function<void(Remote *, byte, byte)> callback)
+{
+    if (this->numCommandListeners >= constants::MAX_COMMAND_LISTENERS)
+    {
+        Serial.println("[Remote] Could not add command listener to remote, because too many are saved!");
+        Serial.println("[Remote] Please check if you actually want to save more than " + String(constants::MAX_COMMAND_LISTENERS, DEC) + " command listeners.");
+        Serial.println("[Remote] If you do, increase MAX_COMMAND_LISTENERS in constants.h and recompile.");
+        return false;
+    }
+    this->commandListeners[this->numCommandListeners] = callback;
+    this->numCommandListeners++;
+    return true;
+}
+
+bool Remote::unregisterCommandListener(std::function<void(Remote *, byte, byte)> callback)
+{
+    for (int i = 0; i < this->numCommandListeners; i++)
+    {
+        if (this->commandListeners[i].target<void(Remote *, byte, byte)>() == callback.target<void(Remote *, byte, byte)>())
+        {
+            for (int j = i; j < this->numCommandListeners - 1; j++)
+            {
+                this->commandListeners[j] = this->commandListeners[j + 1];
+            }
+            this->numCommandListeners--;
+            return true;
+        }
+    }
+    return false;
+}