722 lines
22 KiB
Java
722 lines
22 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.shared.peripheral.monitor;
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import dan200.computercraft.ComputerCraft;
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import dan200.computercraft.api.peripheral.IComputerAccess;
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import dan200.computercraft.api.peripheral.IPeripheral;
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import dan200.computercraft.core.terminal.Terminal;
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import dan200.computercraft.shared.common.ServerTerminal;
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import dan200.computercraft.shared.common.TileGeneric;
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import dan200.computercraft.shared.network.client.TerminalState;
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import dan200.computercraft.shared.util.CapabilityUtil;
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import dan200.computercraft.shared.util.TickScheduler;
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import net.minecraft.block.BlockState;
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import net.minecraft.entity.player.PlayerEntity;
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import net.minecraft.nbt.CompoundNBT;
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import net.minecraft.tileentity.TileEntity;
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import net.minecraft.tileentity.TileEntityType;
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import net.minecraft.util.ActionResultType;
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import net.minecraft.util.Direction;
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import net.minecraft.util.Hand;
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import net.minecraft.util.math.AxisAlignedBB;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.BlockRayTraceResult;
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import net.minecraft.world.World;
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import net.minecraftforge.common.capabilities.Capability;
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import net.minecraftforge.common.util.LazyOptional;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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import java.util.HashSet;
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import java.util.Set;
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import static dan200.computercraft.shared.Capabilities.CAPABILITY_PERIPHERAL;
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public class TileMonitor extends TileGeneric
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{
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public static final double RENDER_BORDER = 2.0 / 16.0;
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public static final double RENDER_MARGIN = 0.5 / 16.0;
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public static final double RENDER_PIXEL_SCALE = 1.0 / 64.0;
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private static final String NBT_X = "XIndex";
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private static final String NBT_Y = "YIndex";
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private static final String NBT_WIDTH = "Width";
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private static final String NBT_HEIGHT = "Height";
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private final boolean advanced;
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private ServerMonitor serverMonitor;
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private ClientMonitor clientMonitor;
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private MonitorPeripheral peripheral;
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private LazyOptional<IPeripheral> peripheralCap;
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private final Set<IComputerAccess> computers = new HashSet<>();
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private boolean needsUpdate = false;
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private boolean destroyed = false;
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private boolean visiting = false;
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// MonitorWatcher state.
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boolean enqueued;
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TerminalState cached;
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private int width = 1;
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private int height = 1;
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private int xIndex = 0;
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private int yIndex = 0;
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public TileMonitor( TileEntityType<? extends TileMonitor> type, boolean advanced )
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{
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super( type );
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this.advanced = advanced;
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}
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@Override
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public void onLoad()
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{
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super.onLoad();
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TickScheduler.schedule( this );
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}
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@Override
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public void destroy()
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{
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// TODO: Call this before using the block
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if( destroyed ) return;
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destroyed = true;
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if( !getLevel().isClientSide ) contractNeighbours();
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}
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@Override
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public void setRemoved()
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{
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super.setRemoved();
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if( clientMonitor != null && xIndex == 0 && yIndex == 0 ) clientMonitor.destroy();
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}
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@Override
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public void onChunkUnloaded()
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{
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super.onChunkUnloaded();
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if( clientMonitor != null && xIndex == 0 && yIndex == 0 ) clientMonitor.destroy();
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}
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@Nonnull
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@Override
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public ActionResultType onActivate( PlayerEntity player, Hand hand, BlockRayTraceResult hit )
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{
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if( !player.isCrouching() && getFront() == hit.getDirection() )
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{
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if( !getLevel().isClientSide )
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{
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monitorTouched(
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(float) (hit.getLocation().x - hit.getBlockPos().getX()),
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(float) (hit.getLocation().y - hit.getBlockPos().getY()),
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(float) (hit.getLocation().z - hit.getBlockPos().getZ())
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);
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}
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return ActionResultType.SUCCESS;
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}
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return ActionResultType.PASS;
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}
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@Nonnull
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@Override
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public CompoundNBT save( CompoundNBT tag )
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{
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tag.putInt( NBT_X, xIndex );
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tag.putInt( NBT_Y, yIndex );
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tag.putInt( NBT_WIDTH, width );
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tag.putInt( NBT_HEIGHT, height );
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return super.save( tag );
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}
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@Override
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public void load( @Nonnull CompoundNBT tag )
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{
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super.load( tag );
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xIndex = tag.getInt( NBT_X );
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yIndex = tag.getInt( NBT_Y );
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width = tag.getInt( NBT_WIDTH );
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height = tag.getInt( NBT_HEIGHT );
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}
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@Override
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public void blockTick()
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{
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if ( needsUpdate )
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{
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needsUpdate = false;
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updateNeighbors();
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}
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if( xIndex != 0 || yIndex != 0 || serverMonitor == null ) return;
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serverMonitor.clearChanged();
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if( serverMonitor.pollResized() )
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{
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for( int x = 0; x < width; x++ )
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{
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for( int y = 0; y < height; y++ )
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{
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TileMonitor monitor = getNeighbour( x, y );
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if( monitor == null ) continue;
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for( IComputerAccess computer : monitor.computers )
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{
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computer.queueEvent( "monitor_resize", computer.getAttachmentName() );
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}
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}
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}
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}
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if( serverMonitor.pollTerminalChanged() ) MonitorWatcher.enqueue( this );
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}
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@Override
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protected void invalidateCaps()
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{
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super.invalidateCaps();
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peripheralCap = CapabilityUtil.invalidate( peripheralCap );
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}
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@Nonnull
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@Override
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public <T> LazyOptional<T> getCapability( @Nonnull Capability<T> cap, @Nullable Direction side )
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{
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if( cap == CAPABILITY_PERIPHERAL )
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{
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createServerMonitor(); // Ensure the monitor is created before doing anything else.
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if( peripheral == null ) peripheral = new MonitorPeripheral( this );
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if( peripheralCap == null ) peripheralCap = LazyOptional.of( () -> peripheral );
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return peripheralCap.cast();
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}
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return super.getCapability( cap, side );
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}
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public ServerMonitor getCachedServerMonitor()
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{
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return serverMonitor;
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}
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private ServerMonitor getServerMonitor()
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{
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if( serverMonitor != null ) return serverMonitor;
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TileMonitor origin = getOrigin();
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if( origin == null ) return null;
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return serverMonitor = origin.serverMonitor;
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}
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private ServerMonitor createServerMonitor()
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{
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if( serverMonitor != null ) return serverMonitor;
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if( xIndex == 0 && yIndex == 0 )
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{
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// If we're the origin, set up the new monitor
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serverMonitor = new ServerMonitor( advanced, this );
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serverMonitor.rebuild();
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// And propagate it to child monitors
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for( int x = 0; x < width; x++ )
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{
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for( int y = 0; y < height; y++ )
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{
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TileMonitor monitor = getNeighbour( x, y );
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if( monitor != null ) monitor.serverMonitor = serverMonitor;
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}
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}
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return serverMonitor;
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}
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else
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{
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// Otherwise fetch the origin and attempt to get its monitor
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// Note this may load chunks, but we don't really have a choice here.
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BlockPos pos = getBlockPos();
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TileEntity te = level.getBlockEntity( pos.relative( getRight(), -xIndex ).relative( getDown(), -yIndex ) );
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if( !(te instanceof TileMonitor) ) return null;
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return serverMonitor = ((TileMonitor) te).createServerMonitor();
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}
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}
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public ClientMonitor getClientMonitor()
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{
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if( clientMonitor != null ) return clientMonitor;
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BlockPos pos = getBlockPos();
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TileEntity te = level.getBlockEntity( pos.relative( getRight(), -xIndex ).relative( getDown(), -yIndex ) );
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if( !(te instanceof TileMonitor) ) return null;
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return clientMonitor = ((TileMonitor) te).clientMonitor;
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}
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// Networking stuff
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@Override
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protected void writeDescription( @Nonnull CompoundNBT nbt )
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{
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super.writeDescription( nbt );
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nbt.putInt( NBT_X, xIndex );
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nbt.putInt( NBT_Y, yIndex );
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nbt.putInt( NBT_WIDTH, width );
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nbt.putInt( NBT_HEIGHT, height );
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}
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@Override
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protected final void readDescription( @Nonnull CompoundNBT nbt )
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{
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super.readDescription( nbt );
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int oldXIndex = xIndex;
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int oldYIndex = yIndex;
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int oldWidth = width;
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int oldHeight = height;
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xIndex = nbt.getInt( NBT_X );
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yIndex = nbt.getInt( NBT_Y );
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width = nbt.getInt( NBT_WIDTH );
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height = nbt.getInt( NBT_HEIGHT );
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if( oldXIndex != xIndex || oldYIndex != yIndex )
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{
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// If our index has changed then it's possible the origin monitor has changed. Thus
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// we'll clear our cache. If we're the origin then we'll need to remove the glList as well.
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if( oldXIndex == 0 && oldYIndex == 0 && clientMonitor != null ) clientMonitor.destroy();
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clientMonitor = null;
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}
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if( xIndex == 0 && yIndex == 0 )
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{
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// If we're the origin terminal then create it.
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if( clientMonitor == null ) clientMonitor = new ClientMonitor( advanced, this );
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}
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if( oldXIndex != xIndex || oldYIndex != yIndex ||
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oldWidth != width || oldHeight != height )
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{
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// One of our properties has changed, so ensure we redraw the block
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updateBlock();
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}
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}
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public final void read( TerminalState state )
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{
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if( xIndex != 0 || yIndex != 0 )
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{
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ComputerCraft.log.warn( "Receiving monitor state for non-origin terminal at {}", getBlockPos() );
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return;
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}
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if( clientMonitor == null ) clientMonitor = new ClientMonitor( advanced, this );
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clientMonitor.read( state );
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}
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// Sizing and placement stuff
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private void updateBlockState()
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{
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getLevel().setBlock( getBlockPos(), getBlockState()
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.setValue( BlockMonitor.STATE, MonitorEdgeState.fromConnections(
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yIndex < height - 1, yIndex > 0,
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xIndex > 0, xIndex < width - 1 ) ), 2 );
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}
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// region Sizing and placement stuff
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public Direction getDirection()
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{
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// Ensure we're actually a monitor block. This _should_ always be the case, but sometimes there's
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// fun problems with the block being missing on the client.
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BlockState state = getBlockState();
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return state.hasProperty( BlockMonitor.FACING ) ? state.getValue( BlockMonitor.FACING ) : Direction.NORTH;
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}
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public Direction getOrientation()
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{
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BlockState state = getBlockState();
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return state.hasProperty( BlockMonitor.ORIENTATION ) ? state.getValue( BlockMonitor.ORIENTATION ) : Direction.NORTH;
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}
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public Direction getFront()
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{
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Direction orientation = getOrientation();
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return orientation == Direction.NORTH ? getDirection() : orientation;
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}
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public Direction getRight()
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{
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return getDirection().getCounterClockWise();
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}
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public Direction getDown()
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{
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Direction orientation = getOrientation();
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if( orientation == Direction.NORTH ) return Direction.UP;
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return orientation == Direction.DOWN ? getDirection() : getDirection().getOpposite();
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}
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public int getWidth()
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{
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return width;
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}
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public int getHeight()
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{
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return height;
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}
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public int getXIndex()
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{
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return xIndex;
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}
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public int getYIndex()
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{
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return yIndex;
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}
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private TileMonitor getSimilarMonitorAt( BlockPos pos )
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{
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if( pos.equals( getBlockPos() ) ) return this;
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int y = pos.getY();
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World world = getLevel();
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if( world == null || !world.isAreaLoaded( pos, 0 ) ) return null;
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TileEntity tile = world.getBlockEntity( pos );
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if( !(tile instanceof TileMonitor) ) return null;
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TileMonitor monitor = (TileMonitor) tile;
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return !monitor.visiting && !monitor.destroyed && advanced == monitor.advanced
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&& getDirection() == monitor.getDirection() && getOrientation() == monitor.getOrientation()
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? monitor : null;
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}
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private TileMonitor getNeighbour( int x, int y )
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{
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BlockPos pos = getBlockPos();
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Direction right = getRight();
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Direction down = getDown();
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int xOffset = -xIndex + x;
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int yOffset = -yIndex + y;
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return getSimilarMonitorAt( pos.relative( right, xOffset ).relative( down, yOffset ) );
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}
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private TileMonitor getOrigin()
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{
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return getNeighbour( 0, 0 );
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}
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private void resize( int width, int height )
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{
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// If we're not already the origin then we'll need to generate a new terminal.
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if( xIndex != 0 || yIndex != 0 ) serverMonitor = null;
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xIndex = 0;
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yIndex = 0;
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this.width = width;
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this.height = height;
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// Determine if we actually need a monitor. In order to do this, simply check if
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// any component monitor been wrapped as a peripheral. Whilst this flag may be
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// out of date,
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boolean needsTerminal = false;
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terminalCheck:
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for( int x = 0; x < width; x++ )
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{
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for( int y = 0; y < height; y++ )
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{
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TileMonitor monitor = getNeighbour( x, y );
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if( monitor != null && monitor.peripheral != null )
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{
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needsTerminal = true;
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break terminalCheck;
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}
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}
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}
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// Either delete the current monitor or sync a new one.
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if( needsTerminal )
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{
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if( serverMonitor == null ) serverMonitor = new ServerMonitor( advanced, this );
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}
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else
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{
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serverMonitor = null;
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}
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// Update the terminal's width and height and rebuild it. This ensures the monitor
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// is consistent when syncing it to other monitors.
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if( serverMonitor != null ) serverMonitor.rebuild();
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// Update the other monitors, setting coordinates, dimensions and the server terminal
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for( int x = 0; x < width; x++ )
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{
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for( int y = 0; y < height; y++ )
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{
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TileMonitor monitor = getNeighbour( x, y );
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if( monitor == null ) continue;
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monitor.xIndex = x;
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monitor.yIndex = y;
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monitor.width = width;
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monitor.height = height;
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monitor.serverMonitor = serverMonitor;
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monitor.updateBlockState();
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monitor.updateBlock();
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}
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}
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}
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private boolean mergeLeft()
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{
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TileMonitor left = getNeighbour( -1, 0 );
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if( left == null || left.yIndex != 0 || left.height != height ) return false;
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int width = left.width + this.width;
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if( width > ComputerCraft.monitorWidth ) return false;
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TileMonitor origin = left.getOrigin();
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if( origin != null ) origin.resize( width, height );
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left.expand();
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return true;
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}
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private boolean mergeRight()
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{
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TileMonitor right = getNeighbour( width, 0 );
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if( right == null || right.yIndex != 0 || right.height != height ) return false;
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int width = this.width + right.width;
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if( width > ComputerCraft.monitorWidth ) return false;
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TileMonitor origin = getOrigin();
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if( origin != null ) origin.resize( width, height );
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expand();
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return true;
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}
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private boolean mergeUp()
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{
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TileMonitor above = getNeighbour( 0, height );
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if( above == null || above.xIndex != 0 || above.width != width ) return false;
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int height = above.height + this.height;
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if( height > ComputerCraft.monitorHeight ) return false;
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TileMonitor origin = getOrigin();
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if( origin != null ) origin.resize( width, height );
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expand();
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return true;
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}
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private boolean mergeDown()
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{
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TileMonitor below = getNeighbour( 0, -1 );
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if( below == null || below.xIndex != 0 || below.width != width ) return false;
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int height = this.height + below.height;
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if( height > ComputerCraft.monitorHeight ) return false;
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TileMonitor origin = below.getOrigin();
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if( origin != null ) origin.resize( width, height );
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below.expand();
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return true;
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}
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void updateNeighborsDeferred()
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{
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needsUpdate = true;
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}
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void updateNeighbors()
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{
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contractNeighbours();
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contract();
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expand();
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}
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@SuppressWarnings( "StatementWithEmptyBody" )
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void expand()
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{
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while( mergeLeft() || mergeRight() || mergeUp() || mergeDown() ) ;
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}
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void contractNeighbours()
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{
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visiting = true;
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if( xIndex > 0 )
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{
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TileMonitor left = getNeighbour( xIndex - 1, yIndex );
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if( left != null ) left.contract();
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}
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if( xIndex + 1 < width )
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{
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TileMonitor right = getNeighbour( xIndex + 1, yIndex );
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if( right != null ) right.contract();
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}
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if( yIndex > 0 )
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{
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TileMonitor below = getNeighbour( xIndex, yIndex - 1 );
|
|
if( below != null ) below.contract();
|
|
}
|
|
if( yIndex + 1 < height )
|
|
{
|
|
TileMonitor above = getNeighbour( xIndex, yIndex + 1 );
|
|
if( above != null ) above.contract();
|
|
}
|
|
visiting = false;
|
|
}
|
|
|
|
void contract()
|
|
{
|
|
int height = this.height;
|
|
int width = this.width;
|
|
|
|
TileMonitor origin = getOrigin();
|
|
if( origin == null )
|
|
{
|
|
TileMonitor right = width > 1 ? getNeighbour( 1, 0 ) : null;
|
|
TileMonitor below = height > 1 ? getNeighbour( 0, 1 ) : null;
|
|
|
|
if( right != null ) right.resize( width - 1, 1 );
|
|
if( below != null ) below.resize( width, height - 1 );
|
|
if( right != null ) right.expand();
|
|
if( below != null ) below.expand();
|
|
|
|
return;
|
|
}
|
|
|
|
for( int y = 0; y < height; y++ )
|
|
{
|
|
for( int x = 0; x < width; x++ )
|
|
{
|
|
TileMonitor monitor = origin.getNeighbour( x, y );
|
|
if( monitor != null ) continue;
|
|
|
|
// Decompose
|
|
TileMonitor above = null;
|
|
TileMonitor left = null;
|
|
TileMonitor right = null;
|
|
TileMonitor below = null;
|
|
|
|
if( y > 0 )
|
|
{
|
|
above = origin;
|
|
above.resize( width, y );
|
|
}
|
|
if( x > 0 )
|
|
{
|
|
left = origin.getNeighbour( 0, y );
|
|
left.resize( x, 1 );
|
|
}
|
|
if( x + 1 < width )
|
|
{
|
|
right = origin.getNeighbour( x + 1, y );
|
|
right.resize( width - (x + 1), 1 );
|
|
}
|
|
if( y + 1 < height )
|
|
{
|
|
below = origin.getNeighbour( 0, y + 1 );
|
|
below.resize( width, height - (y + 1) );
|
|
}
|
|
|
|
// Re-expand
|
|
if( above != null ) above.expand();
|
|
if( left != null ) left.expand();
|
|
if( right != null ) right.expand();
|
|
if( below != null ) below.expand();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
private void monitorTouched( float xPos, float yPos, float zPos )
|
|
{
|
|
XYPair pair = XYPair
|
|
.of( xPos, yPos, zPos, getDirection(), getOrientation() )
|
|
.add( xIndex, height - yIndex - 1 );
|
|
|
|
if( pair.x > width - RENDER_BORDER || pair.y > height - RENDER_BORDER || pair.x < RENDER_BORDER || pair.y < RENDER_BORDER )
|
|
{
|
|
return;
|
|
}
|
|
|
|
ServerTerminal serverTerminal = getServerMonitor();
|
|
if( serverTerminal == null || !serverTerminal.isColour() ) return;
|
|
|
|
Terminal originTerminal = serverTerminal.getTerminal();
|
|
if( originTerminal == null ) return;
|
|
|
|
double xCharWidth = (width - (RENDER_BORDER + RENDER_MARGIN) * 2.0) / originTerminal.getWidth();
|
|
double yCharHeight = (height - (RENDER_BORDER + RENDER_MARGIN) * 2.0) / originTerminal.getHeight();
|
|
|
|
int xCharPos = (int) Math.min( originTerminal.getWidth(), Math.max( (pair.x - RENDER_BORDER - RENDER_MARGIN) / xCharWidth + 1.0, 1.0 ) );
|
|
int yCharPos = (int) Math.min( originTerminal.getHeight(), Math.max( (pair.y - RENDER_BORDER - RENDER_MARGIN) / yCharHeight + 1.0, 1.0 ) );
|
|
|
|
for( int y = 0; y < height; y++ )
|
|
{
|
|
for( int x = 0; x < width; x++ )
|
|
{
|
|
TileMonitor monitor = getNeighbour( x, y );
|
|
if( monitor == null ) continue;
|
|
|
|
for( IComputerAccess computer : monitor.computers )
|
|
{
|
|
computer.queueEvent( "monitor_touch", computer.getAttachmentName(), xCharPos, yCharPos );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// endregion
|
|
|
|
void addComputer( IComputerAccess computer )
|
|
{
|
|
computers.add( computer );
|
|
}
|
|
|
|
void removeComputer( IComputerAccess computer )
|
|
{
|
|
computers.remove( computer );
|
|
}
|
|
|
|
@Nonnull
|
|
@Override
|
|
public AxisAlignedBB getRenderBoundingBox()
|
|
{
|
|
TileMonitor start = getNeighbour( 0, 0 );
|
|
TileMonitor end = getNeighbour( width - 1, height - 1 );
|
|
if( start != null && end != null )
|
|
{
|
|
BlockPos startPos = start.getBlockPos();
|
|
BlockPos endPos = end.getBlockPos();
|
|
int minX = Math.min( startPos.getX(), endPos.getX() );
|
|
int minY = Math.min( startPos.getY(), endPos.getY() );
|
|
int minZ = Math.min( startPos.getZ(), endPos.getZ() );
|
|
int maxX = Math.max( startPos.getX(), endPos.getX() ) + 1;
|
|
int maxY = Math.max( startPos.getY(), endPos.getY() ) + 1;
|
|
int maxZ = Math.max( startPos.getZ(), endPos.getZ() ) + 1;
|
|
return new AxisAlignedBB( minX, minY, minZ, maxX, maxY, maxZ );
|
|
}
|
|
else
|
|
{
|
|
BlockPos pos = getBlockPos();
|
|
return new AxisAlignedBB( pos.getX(), pos.getY(), pos.getZ(), pos.getX() + 1, pos.getY() + 1, pos.getZ() + 1 );
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public double getViewDistance()
|
|
{
|
|
return ComputerCraft.monitorDistanceSq;
|
|
}
|
|
}
|