package appeng.me; import java.util.EnumSet; import java.util.LinkedList; import java.util.List; import java.util.concurrent.Callable; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.tileentity.TileEntity; import net.minecraft.world.World; import net.minecraftforge.common.util.ForgeDirection; import appeng.api.exceptions.FailedConnection; import appeng.api.networking.GridFlags; import appeng.api.networking.GridNotification; import appeng.api.networking.IGrid; import appeng.api.networking.IGridBlock; import appeng.api.networking.IGridCache; import appeng.api.networking.IGridConnecitonVisitor; import appeng.api.networking.IGridConnection; import appeng.api.networking.IGridHost; import appeng.api.networking.IGridNode; import appeng.api.networking.IGridVisitor; import appeng.api.networking.energy.IEnergyGrid; import appeng.api.networking.events.MENetworkChannelsChanged; import appeng.api.networking.pathing.IPathingGrid; import appeng.api.util.AEColor; import appeng.api.util.DimensionalCoord; import appeng.api.util.IReadOnlyCollection; import appeng.core.WorldSettings; import appeng.helpers.TickHandler; import appeng.me.pathfinding.IPathItem; import appeng.util.ReadOnlyCollection; public class GridNode implements IGridNode, IPathItem { final static private MENetworkChannelsChanged event = new MENetworkChannelsChanged(); final List Connections = new LinkedList(); GridStorage myStorage = null; IGridBlock gridProxy; Grid myGrid; public static byte currentVisitorIterationNumber = Byte.MIN_VALUE; public static byte currentChannelsIterationNumber = Byte.MIN_VALUE; byte visitorIterationNumber = Byte.MIN_VALUE; // connection criteria AEColor myColor = AEColor.Transparent; EnumSet validDirections = EnumSet.noneOf( ForgeDirection.class ); // old power draw, used to diff public double previousDraw = 0.0; private int maxChannels = 8; private int channelData = 0; public long lastSecurityKey = -1; public int playerID = -1; @Override public void setPlayerID(int playerID) { if ( playerID >= 0 ) this.playerID = playerID; } public int usedChannels() { return channelData >> 8; } public AEColor getColor() { return myColor; } public GridNode(IGridBlock what) { gridProxy = what; } @Override public void loadFromNBT(String name, NBTTagCompound nodeData) { if ( myGrid == null ) { NBTTagCompound node = nodeData.getCompoundTag( name ); playerID = node.getInteger( "p" ); lastSecurityKey = node.getLong( "k" ); setGridStorage( WorldSettings.getInstance().getGridStorage( node.getLong( "g" ) ) ); } else throw new RuntimeException( "Loading data after part of a grid, this is invalid." ); } @Override public void saveToNBT(String name, NBTTagCompound nodeData) { if ( myStorage != null ) { NBTTagCompound node = new NBTTagCompound(); node.setInteger( "p", playerID ); node.setLong( "k", lastSecurityKey ); node.setLong( "g", myStorage.getID() ); nodeData.setTag( name, node ); } else nodeData.removeTag( name ); } @Override public IGridBlock getGridBlock() { return gridProxy; } @Override public EnumSet getConnectedSides() { EnumSet set = EnumSet.noneOf( ForgeDirection.class ); for (IGridConnection gc : Connections) set.add( gc.getDirection( this ) ); return set; } public Class getMachineClass() { return getMachine().getClass(); } @Override public IGridHost getMachine() { return gridProxy.getMachine(); } @Override public void updateState() { EnumSet set = gridProxy.getFlags(); maxChannels = set.contains( GridFlags.CANNOT_CARRY ) ? 0 : (set.contains( GridFlags.TIER_2_CAPACITY ) ? 32 : 8); myColor = gridProxy.getGridColor(); validDirections = gridProxy.getConnectableSides(); FindConnections(); getInternalGrid(); } @Override public void beginVisition(IGridVisitor g) { currentVisitorIterationNumber++; LinkedList nextRun = new LinkedList(); nextRun.add( this ); visitorIterationNumber = currentVisitorIterationNumber; if ( g instanceof IGridConnecitonVisitor ) { LinkedList nextConn = new LinkedList(); IGridConnecitonVisitor gcv = (IGridConnecitonVisitor) g; while (!nextRun.isEmpty()) { while (!nextConn.isEmpty()) gcv.visitConnection( nextConn.poll() ); LinkedList thisRun = nextRun; nextRun = new LinkedList(); for (GridNode n : thisRun) n.visitorConnection( g, nextRun, nextConn ); } } else { while (!nextRun.isEmpty()) { LinkedList thisRun = nextRun; nextRun = new LinkedList(); for (GridNode n : thisRun) n.visitorNode( g, nextRun ); } } } private void visitorConnection(IGridVisitor g, LinkedList nextRun, LinkedList nextConnections) { if ( g.visitNode( this ) ) { for (IGridConnection gc : getConnections()) { GridNode gn = (GridNode) gc.getOtherSide( this ); GridConnection gcc = (GridConnection) gc; if ( gcc.visitorIterationNumber != currentVisitorIterationNumber ) { gcc.visitorIterationNumber = currentChannelsIterationNumber; nextConnections.add( gc ); } if ( currentVisitorIterationNumber == gn.visitorIterationNumber ) continue; gn.visitorIterationNumber = currentVisitorIterationNumber; nextRun.add( gn ); } } } private void visitorNode(IGridVisitor g, LinkedList nextRun) { if ( g.visitNode( this ) ) { for (IGridConnection gc : getConnections()) { GridNode gn = (GridNode) gc.getOtherSide( this ); if ( currentVisitorIterationNumber == gn.visitorIterationNumber ) continue; gn.visitorIterationNumber = currentVisitorIterationNumber; nextRun.add( gn ); } } } public void FindConnections() { if ( !gridProxy.isWorldAccessable() ) return; EnumSet newSecurityConnections = EnumSet.noneOf( ForgeDirection.class ); DimensionalCoord dc = gridProxy.getLocation(); for (ForgeDirection f : ForgeDirection.VALID_DIRECTIONS) { IGridHost te = findGridHost( dc.getWorld(), dc.x + f.offsetX, dc.y + f.offsetY, dc.z + f.offsetZ ); if ( te != null ) { GridNode node = (GridNode) te.getGridNode( f.getOpposite() ); if ( node == null ) continue; boolean isValidConnection = this.canConnect( node, f ) && node.canConnect( this, f.getOpposite() ); IGridConnection con = null; // find the connection for this // direction.. for (IGridConnection c : getConnections()) { if ( c.getDirection( this ) == f ) { con = c; break; } } if ( con != null ) { IGridNode os = (IGridNode) con.getOtherSide( this ); if ( os == node ) { // if this connection is no longer valid, destroy it. if ( !isValidConnection ) con.destroy(); } else { throw new GridException( "invalid state found, encountered connection to phantom block." ); } } else if ( isValidConnection ) { if ( node.lastSecurityKey != -1 ) newSecurityConnections.add( f ); else { // construct a new connection between these two nodes. try { new GridConnection( node, this, f.getOpposite() ); } catch (FailedConnection e) { TickHandler.instance.addCallable( new Callable() { @Override public Object call() throws Exception { getMachine().securityBreak(); return null; } } ); return; } } } } } for (ForgeDirection f : newSecurityConnections) { IGridHost te = findGridHost( dc.getWorld(), dc.x + f.offsetX, dc.y + f.offsetY, dc.z + f.offsetZ ); if ( te != null ) { GridNode node = (GridNode) te.getGridNode( f.getOpposite() ); if ( node == null ) continue; // construct a new connection between these two nodes. try { new GridConnection( node, this, f.getOpposite() ); } catch (FailedConnection e) { TickHandler.instance.addCallable( new Callable() { @Override public Object call() throws Exception { getMachine().securityBreak(); return null; } } ); return; } } } } private IGridHost findGridHost(World world, int x, int y, int z) { if ( world.blockExists( x, y, z ) ) { TileEntity te = world.getTileEntity( x, y, z ); if ( te instanceof IGridHost ) return (IGridHost) te; } return null; } public void addConnection(IGridConnection gridConnection) { Connections.add( gridConnection ); if ( gridConnection.hasDirection() ) gridProxy.onGridNotification( GridNotification.ConnectionsChanged ); } public void removeConnection(IGridConnection gridConnection) { Connections.remove( gridConnection ); if ( gridConnection.hasDirection() ) gridProxy.onGridNotification( GridNotification.ConnectionsChanged ); } @Override public IReadOnlyCollection getConnections() { return new ReadOnlyCollection( Connections ); } public boolean hasConnection(IGridNode otherside) { for (IGridConnection gc : Connections) { if ( gc.a() == otherside || gc.b() == otherside ) return true; } return false; } public boolean canConnect(GridNode from, ForgeDirection dir) { if ( !validDirections.contains( dir ) ) return false; if ( !from.getColor().matches( getColor() ) ) return false; return true; } @Override public IGrid getGrid() { return myGrid; } public Grid getInternalGrid() { if ( myGrid == null ) myGrid = new Grid( this ); return myGrid; } public void setGrid(Grid grid) { if ( myGrid == grid ) return; if ( myGrid != null ) { myGrid.remove( this ); if ( myGrid.isEmpty() ) { myGrid.saveState(); for (IGridCache c : grid.caches.values()) c.onJoin( myGrid.myStorage ); } } myGrid = grid; myGrid.add( this ); } public void validateGrid() { GridSplitDetector gsd = new GridSplitDetector( getInternalGrid().getPivot() ); beginVisition( gsd ); if ( !gsd.pivotFound ) { GridPropagator gp = new GridPropagator( new Grid( this ) ); beginVisition( gp ); } } @Override public void destroy() { while (!Connections.isEmpty()) { // not part of this network for real anymore. if ( Connections.size() == 1 ) setGridStorage( null ); IGridConnection c = Connections.listIterator().next(); GridNode otherSide = (GridNode) c.getOtherSide( this ); otherSide.getInternalGrid().pivot = otherSide; c.destroy(); } if ( myGrid != null ) myGrid.remove( this ); } @Override public World getWorld() { return gridProxy.getLocation().getWorld(); } @Override public boolean meetsChannelRequirements() { return (!getGridBlock().getFlags().contains( GridFlags.REQUIRE_CHANNEL ) || getUsedChannels() > 0); } @Override public boolean isActive() { IGrid g = getGrid(); if ( g != null ) { IPathingGrid pg = g.getCache( IPathingGrid.class ); IEnergyGrid eg = g.getCache( IEnergyGrid.class ); return meetsChannelRequirements() && eg.isNetworkPowered() && !pg.isNetworkBooting(); } return false; } @Override public boolean canSupportMoreChannels() { return getUsedChannels() < maxChannels; } @Override public IReadOnlyCollection getPossibleOptions() { return (ReadOnlyCollection) getConnections(); } public int getLastUsedChannels() { return (channelData >> 8) & 0xff; } public int getUsedChannels() { return channelData & 0xff; } @Override public void incrementChannelCount(int usedChannels) { channelData += usedChannels; } public void setGridStorage(GridStorage s) { myStorage = s; channelData = 0; } public GridStorage getGridStorage() { return myStorage; } @Override public EnumSet getFlags() { return getGridBlock().getFlags(); } @Override public void finalizeChannels() { if ( getFlags().contains( GridFlags.CANNOT_CARRY ) ) return; if ( getLastUsedChannels() != getUsedChannels() ) { channelData = (channelData & 0xff); channelData |= channelData << 8; if ( getInternalGrid() != null ) getInternalGrid().postEventTo( this, event ); } } @Override public IPathItem getControllerRoute() { if ( Connections.isEmpty() || getFlags().contains( GridFlags.CANNOT_CARRY ) ) return null; return (IPathItem) Connections.get( 0 ); } @Override public void setControllerRoute(IPathItem fast, boolean zeroOut) { if ( zeroOut ) channelData &= ~0xff; int idx = Connections.indexOf( fast ); if ( idx > 0 ) { Connections.remove( fast ); Connections.add( 0, (IGridConnection) fast ); } } @Override public boolean hasFlag(GridFlags flag) { return getGridBlock().getFlags().contains( flag ); } @Override public int getPlayerID() { return playerID; } }