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55 lines
1.8 KiB
Java
55 lines
1.8 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2019. 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;
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import com.google.common.base.Preconditions;
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import dan200.computercraft.ComputerCraft;
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import dan200.computercraft.api.peripheral.IPeripheral;
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import dan200.computercraft.api.peripheral.IPeripheralProvider;
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import net.minecraft.util.EnumFacing;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.world.World;
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import javax.annotation.Nonnull;
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import java.util.Collection;
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public final class Peripherals
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{
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private static final Collection<IPeripheralProvider> providers = ComputerCraft.peripheralProviders;
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public static void register( @Nonnull IPeripheralProvider provider )
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{
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Preconditions.checkNotNull( provider, "provider cannot be null" );
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if( !providers.contains( provider ) ) providers.add( provider );
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}
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public static IPeripheral getPeripheral( World world, BlockPos pos, EnumFacing side )
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{
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return world.isValid( pos ) && !world.isRemote ? getPeripheralAt( world, pos, side ) : null;
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}
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private static IPeripheral getPeripheralAt( World world, BlockPos pos, EnumFacing side )
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{
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// Try the handlers in order:
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for( IPeripheralProvider peripheralProvider : providers )
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{
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try
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{
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IPeripheral peripheral = peripheralProvider.getPeripheral( world, pos, side );
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if( peripheral != null ) return peripheral;
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}
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catch( Exception e )
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{
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ComputerCraft.log.error( "Peripheral provider " + peripheralProvider + " errored.", e );
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}
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}
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return null;
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}
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}
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