/**
* Sets the block id, data and auxData for the block at (x, y, z), if the current data matches the
* expected data.<br>
* <br>
*
* @param x the x coordinate
* @param y the y coordinate
* @param z the z coordinate
* @param expect the expected block value
* @param newValue the new block value
* @return true if the block was set
*/
public final boolean compareAndSetBlock(
int x, int y, int z, BlockFullState<T> expect, BlockFullState<T> newValue) {
return compareAndSetBlock(
x,
y,
z,
expect.getId(),
expect.getData(),
expect.getAuxData(),
newValue.getId(),
newValue.getData(),
newValue.getAuxData());
}
/**
* Atomically gets the full set of data associated with the block.<br>
* <br>
*
* @param x the x coordinate
* @param y the y coordinate
* @param z the z coordinate
* @param fullState a BlockFullState object to store the return value, or null to generate a new
* one
* @return the full state of the block
*/
public final BlockFullState<T> getFullData(int x, int y, int z, BlockFullState<T> fullData) {
if (fullData == null) {
fullData = new BlockFullState<T>();
}
int index = getIndex(x, y, z);
int spins = 0;
boolean interrupted = false;
try {
while (true) {
if (spins++ > SPINS) {
interrupted |= atomicWait();
}
checkCompressing();
int seq = getSequence(x, y, z);
short blockId = blockIds.get(index);
if (auxStore.isReserved(blockId)) {
fullData.setId(auxStore.getId(blockId));
fullData.setData(auxStore.getData(blockId));
fullData.setAuxData(auxStore.getAuxData(blockId));
if (testSequence(x, y, z, seq)) {
return fullData;
}
} else {
fullData.setId(blockId);
fullData.setData((short) 0);
fullData.setAuxData(null);
return fullData;
}
}
} finally {
if (interrupted) {
Thread.currentThread().interrupt();
}
}
}
/**
* Sets the block id, data and auxData for the block at (x, y, z).<br>
* <br>
* If the data is 0 and the auxData is null, then the block will be stored as a single short.<br>
*
* @param x the x coordinate
* @param y the y coordinate
* @param z the z coordinate
* @param fullState the new state of the Block
*/
public final void setBlock(int x, int y, int z, BlockFullState<T> fullState) {
setBlock(x, y, z, fullState.getId(), fullState.getData(), fullState.getAuxData());
}
