int Game::collapse()
{
int c = (int)clearBarPos;
if (c == lastClearedRow)
return 0;
int numClearedThisPass = 0;
for (int r = board_height_ + 2; r>= 0; --r)
{
if ((get(r, c) == XCLEARBLOCKCOL || get(r, c) == OCLEARBLOCKCOL ) && r != py_)
{
// Collapse
ClearedBlock clr;
clr.r = r;
clr.c = c;
clr.col = get(r, c);
//viewer->addParticleBox(c, r, get(r,c));
blocksJustCleared.push_back(clr);
get(r, c) = -1;
pullDown(r, c);
lastClearedRow = c;
numBlocksCleared++;
score_ += (linesCleared_+10) / 10;
linesCleared_++;
numClearedThisPass++;
}
}
// Pull pieces down
return numClearedThisPass;
}
static void Write(uint8_t data)
{
pullUp();
DELAY_US(5);
for (int i = 0; i < 8; i ++)
{
DELAY_US(10);
pullDown();
if (data & 0x01)
{
DELAY_US(5);
pullUp();
DELAY_US(55);
}
else
{
DELAY_US(60);
pullUp();
}
data >>= 1;
}
}
static uint8_t Read()
{
uint8_t data = 0;
uint8_t bit = 1;
for (int i = 0; i < 8; i ++)
{
DELAY_US(10);
pullDown();
DELAY_US(1);
pullUp();
DELAY_US(5);
if (isBusHigh())
{
data |= bit;
}
bit <<= 1;
DELAY_US(60);
}
return data;
}
static bool Reset()
{
pullUp();
DELAY_US(10);
pullDown();
DELAY_US(480);
pullUp();
DELAY_US(60);
if (isBusHigh())
{
return false;
}
DELAY_US(300);
return isBusHigh();
}
