cn.nukkit.level.format.updater.NewLeafUpdater Maven / Gradle / Ivy
package cn.nukkit.level.format.updater;
import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.Since;
import cn.nukkit.block.BlockID;
import cn.nukkit.blockstate.BlockState;
import cn.nukkit.level.format.ChunkSection;
@PowerNukkitOnly
@Since("1.4.0.0-PN")
public class NewLeafUpdater implements Updater {
private final ChunkSection section;
private boolean forceOldSystem;
@PowerNukkitOnly
@Since("1.4.0.0-PN")
public NewLeafUpdater(ChunkSection section) {
this.section = section;
}
@PowerNukkitOnly
@Override
public boolean update(int offsetX, int offsetY, int offsetZ, int x, int y, int z, BlockState state) {
if (state.getBlockId() == BlockID.LEAVES2) {
@SuppressWarnings("deprecation")
int legacyDamage = state.getLegacyDamage();
if ((legacyDamage & 0xE) == 0x0) {
// No flags, no conversion is needed
return false;
}
boolean newSystemForSure = (legacyDamage & 0x8) == 0x8; // New check decay, invalid on old system
boolean oldSystemForSure = (legacyDamage & 0x2) == 0x2; // Old check decay, invalid on new system
if (newSystemForSure && oldSystemForSure) {
// Oh god! This shouldn't happen!
// But it's happening somehow: https://github.com/PowerNukkit/PowerNukkit/issues/482
// Keeping the type as old system, letting it check decay and making it non-persistent
int newData = legacyDamage & 0b0001; // Wood type
newData |= 0b1000; // Check-decay
BlockState fixed = state.withData(newData);
section.setBlockState(x, y, z, fixed);
return true;
}
if (newSystemForSure) {
// Ok, using the right flag positions as indicated in the wiki
// Nothing needs to be done
return false;
}
if (forceOldSystem || oldSystemForSure) {
// Using the old incorrect persistent flags, let's fix it and force a check decay
int newData = legacyDamage & 0b0001; // Wood type
boolean persistent = (legacyDamage & 0x04) == 0x04;
if (persistent) {
newData |= 0b0100; // Persistent
}
if (oldSystemForSure || !persistent) {
newData |= 0b1000; // Check Decay
}
BlockState fixed = state.withData(newData);
if (newData == legacyDamage) {
return false;
}
section.setBlockState(x, y, z, fixed);
return true;
}
}
return false;
}
@PowerNukkitOnly
@Since("1.4.0.0-PN")
public boolean isForceOldSystem() {
return this.forceOldSystem;
}
@PowerNukkitOnly
@Since("1.4.0.0-PN")
public void setForceOldSystem(boolean forceOldSystem) {
this.forceOldSystem = forceOldSystem;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy