Initial commit of mostly working library.

gravity.h

@@ -0,0 +1,46 @@
+#ifndef GRAVITY_H
+#define GRAVITY_H
+
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+#include <Arduino.h>
+
+#include "button.h"
+#include "clock.h"
+#include "digital_output.h"
+#include "encoder_dir.h"
+#include "peripherials.h"
+
+// Hardware abstraction wrapper for the Gravity module.
+class Gravity {
+   public:
+    // Constructor
+    Gravity()
+        : display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1) {}
+
+    // Deconstructor
+    ~Gravity() {}
+
+    // Initializes the Arduino, and Gravity hardware.
+    void Init();
+
+    // Polling check for state change of inputs and outputs.
+    void Process();
+
+    Adafruit_SSD1306 display;             // OLED display object.
+    Clock clock;                          // Clock source wrapper.
+    DigitalOutput outputs[OUTPUT_COUNT];  // An array containing each Output object.
+    EncoderDir encoder;                   // Rotary encoder with button instance
+    Button shift_button;
+    Button play_button;
+
+   private:
+    void InitClock();
+    void InitDisplay();
+    void InitInputs();
+    void InitOutputs();
+};
+
+extern Gravity gravity;
+
+#endif