input.h

00001 #include <mbed.h>
00002 
00003 enum INPUT_BUTTON
00004 {
00005     eUp,
00006     eDown,
00007     eLeft,
00008     eRight,
00009     eCircle,
00010     eSquare,
00011     eLastButton,
00012 };
00013 
00014 #define BUTTON_DEBOUNCE_TICKS   3
00015 
00016 class input
00017 {
00018 public:
00019 
00020     input();
00021     virtual ~input() {};
00022     
00023     void tick();        // Call this function at regular intervals (preferably the frame rate)
00024     
00025     // Buttons
00026     int hit(INPUT_BUTTON button);
00027     bool pressed(INPUT_BUTTON button);
00028     void clear();
00029     
00030     // Accelerometer
00031     // X,Y,Z (0 to 100)
00032     int accel_x();
00033     int accel_y();
00034     int accel_z();
00035     // Roll,Pitch (0 to 359)
00036     int accel_roll();
00037     int accel_pitch();
00038     
00039 protected:
00040 
00041     DigitalIn left;
00042     DigitalIn right;
00043     DigitalIn down;
00044     DigitalIn up;
00045     DigitalIn square;
00046     DigitalIn circle;
00047     int m_iPressedTicks[eLastButton];
00048     int m_iHitCount[eLastButton];
00049     void dobutton(INPUT_BUTTON button, bool bPressed);
00050 
00051     static const char I2C_ADDR = 0x1C << 1;
00052     I2C i2c;
00053     void accelReadRegisters(char address, char* buffer, int len);
00054     int accelWriteRegister(char address, char value);
00055     float accelConvert(char* buffer);
00056     
00057     float m_fAccelX;
00058     float m_fAccelY;
00059     float m_fAccelZ;
00060 };