void BlockMap::ResetConnectivity() {
for (int r = 0; r < Rows(); r++) {
for (int c = 0; c < Cols(); c++) {
Block& currBlock = m_BlockMatrix[r][c];
// Set reachable neighbors
currBlock.neighborOffsets.clear();
Vector2 lOffset(0, -1);
Vector2 rOffset(0, 1);
Vector2 tOffset(-1, 0);
Vector2 bOffset(1, 0);
if (ValidCoord(currBlock.coord + lOffset)) currBlock.neighborOffsets.insert(lOffset);
if (ValidCoord(currBlock.coord + rOffset)) currBlock.neighborOffsets.insert(rOffset);
if (ValidCoord(currBlock.coord + tOffset)) currBlock.neighborOffsets.insert(tOffset);
if (ValidCoord(currBlock.coord + bOffset)) currBlock.neighborOffsets.insert(bOffset);
}
}
}
// Constructor for hardware SPI -- must connect to MOSI, SCK pins
Adafruit_DotStar::Adafruit_DotStar(uint16_t n, uint8_t o) :
numLEDs(n), dataPin(USE_HW_SPI), brightness(0), pixels(NULL),
rOffset(o & 3), gOffset((o >> 2) & 3), bOffset((o >> 4) & 3)
{
updateLength(n);
}
// Constructor for 'soft' (bitbang) SPI -- any two pins can be used
Adafruit_DotStar::Adafruit_DotStar(uint16_t n, uint8_t data, uint8_t clock,
uint8_t o) :
dataPin(data), clockPin(clock), brightness(0), pixels(NULL),
rOffset(o & 3), gOffset((o >> 2) & 3), bOffset((o >> 4) & 3)
{
updateLength(n);
}
Adafruit_DotStar::~Adafruit_DotStar(void) { // Destructor
if(pixels) free(pixels);
if(dataPin == USE_HW_SPI) hw_spi_end();
else sw_spi_end();
}
void Adafruit_DotStar::begin(void) { // Initialize SPI
if(dataPin == USE_HW_SPI) hw_spi_init();
else sw_spi_init();
}
// Pins may be reassigned post-begin(), so a sketch can store hardware
// config in flash, SD card, etc. rather than hardcoded. Also permits
// "recycling" LED ram across multiple strips: set pins to first strip,
// render & write all data, reassign pins to next strip, render & write,
// etc. They won't update simultaneously, but usually unnoticeable.
// Change to hardware SPI -- must connect to MOSI, SCK pins
void Adafruit_DotStar::updatePins(void) {
sw_spi_end();
dataPin = USE_HW_SPI;
hw_spi_init();
}