void gameSetMetaPixel(uint8_t x, uint8_t y, uint8_t status) {
//status is ON (non-zero) or OFF (zero)
//oled is 128x64, our meta board will be 0-64 (x) and 0-32 (y)
//oled is written in 'pages' of 8-bits. This particular screen
//cannot be read so the game buffer must be used to ensure writing
//a new game pixel doesn't overwrite existing pixels.
//make our changes to the buffer
uint8_t metaPage = y/8;
uint8_t metaPageY = 1<<(y%8);
if (status) { buffer[metaPage][x] |= metaPageY; }
else { buffer[metaPage][x] &= ~metaPageY; }
//write to the screen accounting for 2x pixel sizes meta-v-actual
uint8_t subMetaPage = (y%8)/4;
uint8_t actualPage = (metaPage*2) + subMetaPage;
uint8_t actualX = x*2;
uint8_t metaData = buffer[metaPage][x];
if (subMetaPage) { metaData>>=4; } //Shift data to get to upper nibble if necessary
uint8_t actualData = 0x00;
for (uint8_t i=0; i<4; i++) {
if (metaData & (1<<i)) {
//Each '1' in the meta data is amplified to two bits in the actual
actualData |= (0b11<<(i*2));
}
}
oledSetCursor(actualX,actualPage);
oledWriteData(actualData);
oledWriteData(actualData);
}
int main(void)
{
init_IO();
init_interrupts();
oledInit();
_delay_ms(200);
oledSetCursor(cursX, cursY);
putChar(66,1);
advanceCursor(6);
compose();
initMenu();
while(1)
{
static uint16_t butCounter = 0;
if (butCounter++ > 65000) {
//FIXME: Proper button debounce and handling
butCounter = 0;
uint8_t readButtons = BUT_PIN;
if (~readButtons & BUT_LEFT) {
++goLeft;
}
if (~readButtons & BUT_SEL) {
++goSel;
}
}
if (knobChange) {
if (knobChange > 0) {
//menuUp();
knobLeft();
}
else {
//menuDn();
knobRight();
}
knobChange = 0;
}
if (goSel) {
//Lookup and execute action
doSelect[optionIndex]();
goSel = 0;
}
else if (goLeft) {
doBack();
goLeft = 0;
}
}
}
/*
* oledSetCursor() Python Analogue
*/
static PyObject* pyOledSetCursor(PyObject* self, PyObject* args)
{
int status, row, col;
// parse the arguments
if (!PyArg_ParseTuple(args, "ii", &row, &col) ) {
return NULL;
}
// make the oled-exp call
status = oledSetCursor (row, col);
if (status != EXIT_SUCCESS) {
PyErr_SetString(PyExc_IOError, wrmsg_i2c);
return NULL;
}
return Py_BuildValue("i", status);
}
