ActuallyAdditions/src/main/java/de/ellpeck/actuallyadditions/mod/misc/LaserRelayConnectionHandler.java

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/*
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* This file ("LaserRelayConnectionHandler.java") is part of the Actually Additions mod for Minecraft.
* It is created and owned by Ellpeck and distributed
* under the Actually Additions License to be found at
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* http://ellpeck.de/actaddlicense
* View the source code at https://github.com/Ellpeck/ActuallyAdditions
*
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* © 2015-2016 Ellpeck Ellpeck
*/
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package de.ellpeck.actuallyadditions.mod.misc;
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import de.ellpeck.actuallyadditions.mod.tile.TileEntityLaserRelay;
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import de.ellpeck.actuallyadditions.mod.util.PosUtil;
import io.netty.util.internal.ConcurrentSet;
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import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
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import net.minecraft.util.math.BlockPos;
public class LaserRelayConnectionHandler{
private static LaserRelayConnectionHandler instance;
/**
* All of the Networks
*/
public ConcurrentSet<Network> networks = new ConcurrentSet<Network>();
public static LaserRelayConnectionHandler getInstance(){
if(instance == null){
instance = new LaserRelayConnectionHandler();
}
return instance;
}
public NBTTagCompound writeNetworkToNBT(Network network){
NBTTagList list = new NBTTagList();
for(ConnectionPair pair : network.connections){
list.appendTag(pair.writeToNBT());
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}
NBTTagCompound compound = new NBTTagCompound();
compound.setTag("Network", list);
return compound;
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}
public Network readNetworkFromNBT(NBTTagCompound tag){
NBTTagList list = tag.getTagList("Network", 10);
Network network = new Network();
for(int i = 0; i < list.tagCount(); i++){
network.connections.add(ConnectionPair.readFromNBT(list.getCompoundTagAt(i)));
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}
return network;
}
/**
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* Gets all Connections for a Relay
*/
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public ConcurrentSet<ConnectionPair> getConnectionsFor(BlockPos relay){
ConcurrentSet<ConnectionPair> allPairs = new ConcurrentSet<ConnectionPair>();
for(Network aNetwork : this.networks){
for(ConnectionPair pair : aNetwork.connections){
if(pair.contains(relay)){
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allPairs.add(pair);
}
}
}
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return allPairs;
}
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/**
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* Removes a Relay from its Network
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*/
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public void removeRelayFromNetwork(BlockPos relay){
Network network = this.getNetworkFor(relay);
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if(network != null){
//Setup new network (so that splitting a network will cause it to break into two)
this.networks.remove(network);
for(ConnectionPair pair : network.connections){
if(!pair.contains(relay)){
this.addConnection(pair.firstRelay, pair.secondRelay);
}
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}
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//System.out.println("Removing a Relay from the Network!");
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}
WorldData.makeDirty();
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}
/**
* Gets a Network for a Relay
*/
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public Network getNetworkFor(BlockPos relay){
for(Network aNetwork : this.networks){
for(ConnectionPair pair : aNetwork.connections){
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if(pair.contains(relay)){
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return aNetwork;
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}
}
}
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return null;
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}
/**
* Adds a new connection between two relays
* (Puts it into the correct network!)
*/
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public boolean addConnection(BlockPos firstRelay, BlockPos secondRelay){
int distance = (int)PosUtil.toVec(firstRelay).distanceTo(PosUtil.toVec(secondRelay));
if(distance > TileEntityLaserRelay.MAX_DISTANCE || PosUtil.areSamePos(firstRelay, secondRelay)){
return false;
}
Network firstNetwork = this.getNetworkFor(firstRelay);
Network secondNetwork = this.getNetworkFor(secondRelay);
//No Network exists
if(firstNetwork == null && secondNetwork == null){
firstNetwork = new Network();
this.networks.add(firstNetwork);
firstNetwork.connections.add(new ConnectionPair(firstRelay, secondRelay));
}
//The same Network
else if(firstNetwork == secondNetwork){
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return false;
}
//Both relays have networks
else if(firstNetwork != null && secondNetwork != null){
this.mergeNetworks(firstNetwork, secondNetwork);
firstNetwork.connections.add(new ConnectionPair(firstRelay, secondRelay));
}
//Only first network exists
else if(firstNetwork != null){
firstNetwork.connections.add(new ConnectionPair(firstRelay, secondRelay));
}
//Only second network exists
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else{
secondNetwork.connections.add(new ConnectionPair(firstRelay, secondRelay));
}
WorldData.makeDirty();
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//System.out.println("Connected "+firstRelay.toString()+" to "+secondRelay.toString());
//System.out.println(firstNetwork == null ? secondNetwork.toString() : firstNetwork.toString());
//System.out.println(this.networks);
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return true;
}
/**
* Merges two networks together
* (Actually puts everything from the second network into the first one and removes the second one)
*/
public void mergeNetworks(Network firstNetwork, Network secondNetwork){
for(ConnectionPair secondPair : secondNetwork.connections){
firstNetwork.connections.add(secondPair);
}
this.networks.remove(secondNetwork);
WorldData.makeDirty();
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//System.out.println("Merged Two Networks!");
}
public static class ConnectionPair{
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public BlockPos firstRelay;
public BlockPos secondRelay;
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public ConnectionPair(BlockPos firstRelay, BlockPos secondRelay){
this.firstRelay = firstRelay;
this.secondRelay = secondRelay;
}
public static ConnectionPair readFromNBT(NBTTagCompound compound){
if(compound != null){
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BlockPos[] pos = new BlockPos[2];
for(int i = 0; i < pos.length; i++){
int anX = compound.getInteger("x"+i);
int aY = compound.getInteger("y"+i);
int aZ = compound.getInteger("z"+i);
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pos[i] = new BlockPos(anX, aY, aZ);
}
return new ConnectionPair(pos[0], pos[1]);
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}
return null;
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}
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public boolean contains(BlockPos relay){
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return (this.firstRelay != null && PosUtil.areSamePos(this.firstRelay, relay)) || (this.secondRelay != null && PosUtil.areSamePos(this.secondRelay, relay));
}
@Override
public String toString(){
return (this.firstRelay == null ? "-" : this.firstRelay.toString())+" | "+(this.secondRelay == null ? "-" : this.secondRelay.toString());
}
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public NBTTagCompound writeToNBT(){
NBTTagCompound compound = new NBTTagCompound();
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for(int i = 0; i < 2; i++){
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BlockPos relay = i == 0 ? this.firstRelay : this.secondRelay;
compound.setInteger("x"+i, relay.getX());
compound.setInteger("y"+i, relay.getY());
compound.setInteger("z"+i, relay.getZ());
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}
return compound;
}
}
public static class Network{
public ConcurrentSet<ConnectionPair> connections = new ConcurrentSet<ConnectionPair>();
@Override
public String toString(){
return this.connections.toString();
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}
}
}