WiiClassiController.c

#include "Antares.h"   //RJA implementing this gd2-lib code using Matrix Orbital's EVE driver

#include "kenney_assets.h"

i2c_Port* pI2C1;
uint8_t WiiRegs[6];

int tilex = 10;
int tiley = 10;

static void draw(int t)
{
  int y = 1648 - t;
  y = 1648;// stop tiles from moving
  // finish(); long t0 = micros();

  // ClearColorRGB(0xd0f4f7); Clear();
  cmd_gradient(0,   0, 0xa0a4f7,
                  0, 272*2, 0xd0f4f7);

  TranslateXY(0, 0);//rja

  Begin(BITMAPS);


  RestoreContext();
  TranslateXY(300, 400);//rja
  BlendFunc(ONE, ONE_MINUS_SRC_ALPHA);
  Begin(BITMAPS);
  BitmapHandle(TILES_HANDLE);
  uint8_t* src = layer1_map +(y >> 5) * 15;
  byte yo = y & 31;
  for (byte j = 0; j < 10; j++)
    for (byte i = 0; i < 15; i++) {
      byte t = (byte)*(src++);
      if (t != 0) {
        Cell(t - 1);
        Vertex2f(16 * 32 * i, 16 * ((32 * j) - yo));
      }
    }

  //draw box
  TranslateXY(0, 0);//rja
  Cmd_Color_RGB(0xffcc00);
  Begin(LINES);

  Vertex2f(tilex * 32*16, tiley * 32* 16);
  Vertex2f(tilex * 32 * 16 , tiley * 32 * 16 + 32 * 16);

  Vertex2f(tilex * 32 * 16, tiley * 32 * 16);
  Vertex2f(tilex * 32 * 16 + 32 * 16, tiley * 32 * 16) ;

  Vertex2f(tilex * 32 * 16 + 32 * 16, tiley * 32 * 16 + 32 * 16);
  Vertex2f(tilex * 32 * 16 , tiley * 32 * 16 + 32 * 16);

  Vertex2f(tilex * 32 * 16 + 32 * 16, tiley * 32 * 16 + 32 * 16);
  Vertex2f(tilex * 32 * 16 + 32 * 16, tiley * 32 * 16 );


  


  swap();
}



void setup()
{
  begin();

  Clear();
  LOAD_ASSETS();

  // Handle     Graphic
  //   0        Tiles

  byte hy[] = {36, 12, 144, 204, 216, 120, 48, 168, 192, 84, 72, 60, 24, 180, 0, 108, 228, 132, 156, 96};

  i2c_Setup(pI2C1, I2C1_SCLPIN, I2C1_SDAPIN, I2C1_SPEED, I2C1_PULLUP); //setup(i2c_Port*, scl, sda, khz, pullup) 
  //Scan the I2C Bus I2CBus1
  ScanI2CBus(pI2C1);  //Wii classic controller shouls show up at A4

  //Magic to get Wii classic controller talking
  WiiRegs[0] = 0x55;
  i2c_WriteRegisters(pI2C1, 0xA4,0xF0,1, WiiRegs);// (i2c_Port * pi2c, uint8_t add, int reg, int n, uint8_t * pBuff)
  WiiRegs[0] = 0x00;
  i2c_WriteRegisters(pI2C1, 0xA4, 0xFB, 1, WiiRegs);// (i2c_Port * pi2c, uint8_t add, int reg, int n, uint8_t * pBuff)

  printf("I2C Driver started.\n");

}

void loop()
{

   draw(0);

   _waitms(100);

  i2c_ReadRegisters(pI2C1, 0xA4, 0, 6, WiiRegs);

  //Combine button data into one word
   uint16_t b = (1 << 15) | (WiiRegs[5] << 7) | (WiiRegs[4] >> 1);
   b = ~b;

   //Digital controller bits :
   //0 : R fully pressed
   //    1 : Start
   //    2 : Home
   //    3 : Select
   //    4 : L fully pressed
   //    5 : Down
   //    6 : Right
   //    7 : Up
   //    8 : Left
   //    9 : ZR
   //    10 : x
   //    11 : a
   //    12 : y
   //    13 : b
   //    14 : ZL

  bool bPushed = false;
  if (b & (1 << 5))
  {
      printf("Down ");
      tiley += 1;
      bPushed = true;
  }
  if (b & (1 << 7)) 
  {
      printf("Up ");
      tiley -= 1;
      bPushed = true;
  }
  if (b & (1 << 8))
  {
      printf("Left ");
      tilex -= 1;
      bPushed = true;
  }
  if (b & (1 << 6))
  {
      printf("Right");
      tilex += 1;
      bPushed = true;
  }
  if (b!=0)
    printf(" Buttons=%d\n",b);


  

}

void main()
{//RJA added this main function to act like Arduino
    setup();
    for (;;)
    {
        loop();
    }
}