refactor: put pad reading logic into dedicated file

src/input/pad_reader.cpp

@@ -0,0 +1,40 @@
+#include <Arduino.h>
+
+#include <audio/tone_generator.hpp>
+
+#ifndef ANALOG_INPUT_PIN
+#define ANALOG_INPUT_PIN A0
+#endif
+
+namespace PadReader
+{
+    void handlePadInputs(void *pvParameters);
+
+    void init()
+    {
+        pinMode(ANALOG_INPUT_PIN, INPUT);
+
+        xTaskCreate(handlePadInputs, "handlePadInputs", 2048, NULL, 1, NULL);
+    }
+
+    void handlePadInputs(void *pvParameters)
+    {
+        while (true)
+        {
+            int max = 0;
+            for (int i = 0; i < 100; i++)
+            {
+                int value = analogRead(ANALOG_INPUT_PIN);
+                if (!ToneGenerator::isToneOn() && value > 0)
+                {
+                    ToneGenerator::setToneOn(true);
+                }
+                if (value > max)
+                {
+                    max = value;
+                }
+                delay(1);
+            }
+        }
+    }
+}

src/input/pad_reader.hpp

@@ -0,0 +1,8 @@
+#ifndef DRUMZ_INPUT_PAD_READER_HPP
+#define DRUMZ_INPUT_PAD_READER_HPP
+
+namespace PadReader {
+    void init();
+}
+
+#endif //DRUMZ_INPUT_PAD_READER_HPP

src/main.cpp

@@ -3,30 +3,26 @@
 #define SCREEN_WIDTH 320
 #define SCREEN_HEIGHT 240
 
-#define ENCODER_BUTTON_PIN = 14;
+#define ENCODER_BUTTON_PIN 14;
-#define ENCODER_A_PIN = 12;
+#define ENCODER_A_PIN 12;
-#define ENCODER_B_PIN = 13;
+#define ENCODER_B_PIN 13;
 
-#define ANALOG_OUTPUT_PIN = 25;
+#define ANALOG_OUTPUT_PIN 25;
+#define ANALOG_INPUT_PIN 34;
 
 #include <ui/display.hpp>
 #include <input/encoder.hpp>
+#include <input/pad_reader.hpp>
 #include <audio/tone_generator.hpp>
 
 const int ONBOARD_LED_PIN = 2;
-const int ANALOG_INPUT_PIN = 34;
-
-void handle_pad_inputs(void *pvParameters);
 
 void setup()
 {
   Serial.begin(115200);
   pinMode(ONBOARD_LED_PIN, OUTPUT);
-  pinMode(ANALOG_INPUT_PIN, INPUT);
-
-
-  xTaskCreate(handle_pad_inputs, "handle_pad_inputs", 2048, NULL, 1, NULL);
 
+  PadReader::init();
   Encoder::init();
   Display::init();
 
@@ -39,25 +35,3 @@ void loop()
   Display::update();
   delay(5);
 }
-
-void handle_pad_inputs(void *pvParameters)
-{
-  while (true)
-  {
-    int max = 0;
-    for (int i = 0; i < 100; i++)
-    {
-      int value = analogRead(ANALOG_INPUT_PIN);
-      if (!ToneGenerator::isToneOn() && value > 0)
-      {
-        ToneGenerator::setToneOn(true);
-      }
-      if (value > max)
-      {
-        max = value;
-      }
-      delay(1);
-    }
-  }
-}
-