CC-Tweaked/src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlaceCommand.java

447 lines
18 KiB
Java

/*
* This file is part of ComputerCraft - http://www.computercraft.info
* Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
* Send enquiries to dratcliffe@gmail.com
*/
package dan200.computercraft.shared.turtle.core;
import dan200.computercraft.ComputerCraft;
import dan200.computercraft.api.turtle.ITurtleAccess;
import dan200.computercraft.api.turtle.ITurtleCommand;
import dan200.computercraft.api.turtle.TurtleAnimation;
import dan200.computercraft.api.turtle.TurtleCommandResult;
import dan200.computercraft.api.turtle.event.TurtleBlockEvent;
import dan200.computercraft.shared.TurtlePermissions;
import dan200.computercraft.shared.util.DirectionUtil;
import dan200.computercraft.shared.util.DropConsumer;
import dan200.computercraft.shared.util.InventoryUtil;
import dan200.computercraft.shared.util.WorldUtil;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.item.*;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.tileentity.TileEntitySign;
import net.minecraft.util.ActionResult;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.Vec3d;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.world.World;
import net.minecraftforge.common.ForgeHooks;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.player.PlayerInteractEvent;
import net.minecraftforge.eventbus.api.Event;
import org.apache.commons.lang3.tuple.Pair;
import javax.annotation.Nonnull;
import java.util.List;
public class TurtlePlaceCommand implements ITurtleCommand
{
private final InteractDirection m_direction;
private final Object[] m_extraArguments;
public TurtlePlaceCommand( InteractDirection direction, Object[] arguments )
{
m_direction = direction;
m_extraArguments = arguments;
}
@Nonnull
@Override
public TurtleCommandResult execute( @Nonnull ITurtleAccess turtle )
{
// Get thing to place
ItemStack stack = turtle.getInventory().getStackInSlot( turtle.getSelectedSlot() );
if( stack.isEmpty() )
{
return TurtleCommandResult.failure( "No items to place" );
}
// Remember old block
EnumFacing direction = m_direction.toWorldDir( turtle );
BlockPos coordinates = turtle.getPosition().offset( direction );
// Create a fake player, and orient it appropriately
BlockPos playerPosition = turtle.getPosition().offset( direction );
TurtlePlayer turtlePlayer = createPlayer( turtle, playerPosition, direction );
TurtleBlockEvent.Place place = new TurtleBlockEvent.Place( turtle, turtlePlayer, turtle.getWorld(), coordinates, stack );
if( MinecraftForge.EVENT_BUS.post( place ) )
{
return TurtleCommandResult.failure( place.getFailureMessage() );
}
// Do the deploying
String[] errorMessage = new String[1];
ItemStack remainder = deploy( stack, turtle, turtlePlayer, direction, m_extraArguments, errorMessage );
if( remainder != stack )
{
// Put the remaining items back
turtle.getInventory().setInventorySlotContents( turtle.getSelectedSlot(), remainder );
turtle.getInventory().markDirty();
// Animate and return success
turtle.playAnimation( TurtleAnimation.Wait );
return TurtleCommandResult.success();
}
else
{
if( errorMessage[0] != null )
{
return TurtleCommandResult.failure( errorMessage[0] );
}
else if( stack.getItem() instanceof ItemBlock )
{
return TurtleCommandResult.failure( "Cannot place block here" );
}
else
{
return TurtleCommandResult.failure( "Cannot place item here" );
}
}
}
public static ItemStack deploy( @Nonnull ItemStack stack, ITurtleAccess turtle, EnumFacing direction, Object[] extraArguments, String[] outErrorMessage )
{
// Create a fake player, and orient it appropriately
BlockPos playerPosition = turtle.getPosition().offset( direction );
TurtlePlayer turtlePlayer = createPlayer( turtle, playerPosition, direction );
return deploy( stack, turtle, turtlePlayer, direction, extraArguments, outErrorMessage );
}
public static ItemStack deploy( @Nonnull ItemStack stack, ITurtleAccess turtle, TurtlePlayer turtlePlayer, EnumFacing direction, Object[] extraArguments, String[] outErrorMessage )
{
// Deploy on an entity
ItemStack remainder = deployOnEntity( stack, turtle, turtlePlayer, direction, extraArguments, outErrorMessage );
if( remainder != stack )
{
return remainder;
}
// Deploy on the block immediately in front
BlockPos position = turtle.getPosition();
BlockPos newPosition = position.offset( direction );
remainder = deployOnBlock( stack, turtle, turtlePlayer, newPosition, direction.getOpposite(), extraArguments, true, outErrorMessage );
if( remainder != stack )
{
return remainder;
}
// Deploy on the block one block away
remainder = deployOnBlock( stack, turtle, turtlePlayer, newPosition.offset( direction ), direction.getOpposite(), extraArguments, false, outErrorMessage );
if( remainder != stack )
{
return remainder;
}
if( direction.getAxis() != EnumFacing.Axis.Y )
{
// Deploy down on the block in front
remainder = deployOnBlock( stack, turtle, turtlePlayer, newPosition.down(), EnumFacing.UP, extraArguments, false, outErrorMessage );
if( remainder != stack )
{
return remainder;
}
}
// Deploy back onto the turtle
remainder = deployOnBlock( stack, turtle, turtlePlayer, position, direction, extraArguments, false, outErrorMessage );
if( remainder != stack )
{
return remainder;
}
// If nothing worked, return the original stack unchanged
return stack;
}
public static TurtlePlayer createPlayer( ITurtleAccess turtle, BlockPos position, EnumFacing direction )
{
TurtlePlayer turtlePlayer = TurtlePlayer.get( turtle );
orientPlayer( turtle, turtlePlayer, position, direction );
return turtlePlayer;
}
private static void orientPlayer( ITurtleAccess turtle, TurtlePlayer turtlePlayer, BlockPos position, EnumFacing direction )
{
turtlePlayer.posX = position.getX() + 0.5;
turtlePlayer.posY = position.getY() + 0.5;
turtlePlayer.posZ = position.getZ() + 0.5;
// Stop intersection with the turtle itself
if( turtle.getPosition().equals( position ) )
{
turtlePlayer.posX += 0.48 * direction.getXOffset();
turtlePlayer.posY += 0.48 * direction.getYOffset();
turtlePlayer.posZ += 0.48 * direction.getZOffset();
}
if( direction.getAxis() != EnumFacing.Axis.Y )
{
turtlePlayer.rotationYaw = direction.getHorizontalAngle();
turtlePlayer.rotationPitch = 0.0f;
}
else
{
turtlePlayer.rotationYaw = turtle.getDirection().getHorizontalAngle();
turtlePlayer.rotationPitch = DirectionUtil.toPitchAngle( direction );
}
turtlePlayer.prevPosX = turtlePlayer.posX;
turtlePlayer.prevPosY = turtlePlayer.posY;
turtlePlayer.prevPosZ = turtlePlayer.posZ;
turtlePlayer.prevRotationPitch = turtlePlayer.rotationPitch;
turtlePlayer.prevRotationYaw = turtlePlayer.rotationYaw;
turtlePlayer.rotationYawHead = turtlePlayer.rotationYaw;
turtlePlayer.prevRotationYawHead = turtlePlayer.rotationYawHead;
}
@Nonnull
private static ItemStack deployOnEntity( @Nonnull ItemStack stack, final ITurtleAccess turtle, TurtlePlayer turtlePlayer, EnumFacing direction, Object[] extraArguments, String[] outErrorMessage )
{
// See if there is an entity present
final World world = turtle.getWorld();
final BlockPos position = turtle.getPosition();
Vec3d turtlePos = new Vec3d( turtlePlayer.posX, turtlePlayer.posY, turtlePlayer.posZ );
Vec3d rayDir = turtlePlayer.getLook( 1.0f );
Pair<Entity, Vec3d> hit = WorldUtil.rayTraceEntities( world, turtlePos, rayDir, 1.5 );
if( hit == null )
{
return stack;
}
// Load up the turtle's inventory
ItemStack stackCopy = stack.copy();
turtlePlayer.loadInventory( stackCopy );
// Start claiming entity drops
Entity hitEntity = hit.getKey();
Vec3d hitPos = hit.getValue();
DropConsumer.set(
hitEntity,
drop -> InventoryUtil.storeItems( drop, turtle.getItemHandler(), turtle.getSelectedSlot() )
);
// Place on the entity
boolean placed = false;
EnumActionResult cancelResult = ForgeHooks.onInteractEntityAt( turtlePlayer, hitEntity, hitPos, EnumHand.MAIN_HAND );
if( cancelResult == null )
{
cancelResult = hitEntity.applyPlayerInteraction( turtlePlayer, hitPos, EnumHand.MAIN_HAND );
}
if( cancelResult == EnumActionResult.SUCCESS )
{
placed = true;
}
else
{
// See EntityPlayer.interactOn
cancelResult = ForgeHooks.onInteractEntity( turtlePlayer, hitEntity, EnumHand.MAIN_HAND );
if( cancelResult == EnumActionResult.SUCCESS )
{
placed = true;
}
else if( cancelResult == null )
{
if( hitEntity.processInitialInteract( turtlePlayer, EnumHand.MAIN_HAND ) )
{
placed = true;
}
else if( hitEntity instanceof EntityLivingBase )
{
placed = stackCopy.interactWithEntity( turtlePlayer, (EntityLivingBase) hitEntity, EnumHand.MAIN_HAND );
if( placed ) turtlePlayer.loadInventory( stackCopy );
}
}
}
// Stop claiming drops
List<ItemStack> remainingDrops = DropConsumer.clear();
for( ItemStack remaining : remainingDrops )
{
WorldUtil.dropItemStack( remaining, world, position, turtle.getDirection().getOpposite() );
}
// Put everything we collected into the turtles inventory, then return
ItemStack remainder = turtlePlayer.unloadInventory( turtle );
if( !placed && ItemStack.areItemStacksEqual( stack, remainder ) )
{
return stack;
}
else if( !remainder.isEmpty() )
{
return remainder;
}
else
{
return ItemStack.EMPTY;
}
}
private static boolean canDeployOnBlock( @Nonnull BlockItemUseContext context, ITurtleAccess turtle, TurtlePlayer player, BlockPos position, EnumFacing side, boolean allowReplaceable, String[] outErrorMessage )
{
World world = turtle.getWorld();
if( World.isValid( position ) &&
!world.isAirBlock( position ) &&
!(context.getItem().getItem() instanceof ItemBlock && WorldUtil.isLiquidBlock( world, position )) )
{
return false;
}
IBlockState state = world.getBlockState( position );
boolean replaceable = state.isReplaceable( context );
if( !allowReplaceable && replaceable ) return false;
if( ComputerCraft.turtlesObeyBlockProtection )
{
// Check spawn protection
boolean editable = replaceable
? TurtlePermissions.isBlockEditable( world, position, player )
: TurtlePermissions.isBlockEditable( world, position.offset( side ), player );
if( !editable )
{
if( outErrorMessage != null ) outErrorMessage[0] = "Cannot place in protected area";
return false;
}
}
return context.canPlace();
}
@Nonnull
private static ItemStack deployOnBlock( @Nonnull ItemStack stack, ITurtleAccess turtle, TurtlePlayer turtlePlayer, BlockPos position, EnumFacing side, Object[] extraArguments, boolean allowReplace, String[] outErrorMessage )
{
// Re-orient the fake player
EnumFacing playerDir = side.getOpposite();
BlockPos playerPosition = position.offset( side );
orientPlayer( turtle, turtlePlayer, playerPosition, playerDir );
ItemStack stackCopy = stack.copy();
turtlePlayer.loadInventory( stackCopy );
// Calculate where the turtle would hit the block
float hitX = 0.5f + side.getXOffset() * 0.5f;
float hitY = 0.5f + side.getYOffset() * 0.5f;
float hitZ = 0.5f + side.getZOffset() * 0.5f;
if( Math.abs( hitY - 0.5f ) < 0.01f )
{
hitY = 0.45f;
}
// Check if there's something suitable to place onto
ItemUseContext context = new ItemUseContext( turtlePlayer, stackCopy, position, side, hitX, hitY, hitZ );
if( !canDeployOnBlock( new BlockItemUseContext( context ), turtle, turtlePlayer, position, side, allowReplace, outErrorMessage ) )
{
return stack;
}
// Load up the turtle's inventory
Item item = stack.getItem();
// Do the deploying (put everything in the players inventory)
boolean placed = false;
TileEntity existingTile = turtle.getWorld().getTileEntity( position );
// See PlayerInteractionManager.processRightClickBlock
// TODO: ^ Check we're still consistent.
PlayerInteractEvent.RightClickBlock event = ForgeHooks.onRightClickBlock( turtlePlayer, EnumHand.MAIN_HAND, position, side, new Vec3d( hitX, hitY, hitZ ) );
if( !event.isCanceled() )
{
if( item.onItemUseFirst( stack, context ) == EnumActionResult.SUCCESS )
{
placed = true;
turtlePlayer.loadInventory( stackCopy );
}
else if( event.getUseItem() != Event.Result.DENY &&
stackCopy.onItemUse( context ) == EnumActionResult.SUCCESS )
{
placed = true;
turtlePlayer.loadInventory( stackCopy );
}
}
if( !placed && (item instanceof ItemBucket || item instanceof ItemBoat || item instanceof ItemLilyPad || item instanceof ItemGlassBottle) )
{
EnumActionResult actionResult = ForgeHooks.onItemRightClick( turtlePlayer, EnumHand.MAIN_HAND );
if( actionResult == EnumActionResult.SUCCESS )
{
placed = true;
}
else if( actionResult == null )
{
ActionResult<ItemStack> result = stackCopy.useItemRightClick( turtle.getWorld(), turtlePlayer, EnumHand.MAIN_HAND );
if( result.getType() == EnumActionResult.SUCCESS && !ItemStack.areItemStacksEqual( stack, result.getResult() ) )
{
placed = true;
turtlePlayer.loadInventory( result.getResult() );
}
}
}
// Set text on signs
if( placed && item instanceof ItemSign )
{
if( extraArguments != null && extraArguments.length >= 1 && extraArguments[0] instanceof String )
{
World world = turtle.getWorld();
TileEntity tile = world.getTileEntity( position );
if( tile == null || tile == existingTile )
{
tile = world.getTileEntity( position.offset( side ) );
}
if( tile instanceof TileEntitySign )
{
TileEntitySign signTile = (TileEntitySign) tile;
String s = (String) extraArguments[0];
String[] split = s.split( "\n" );
int firstLine = split.length <= 2 ? 1 : 0;
for( int i = 0; i < signTile.signText.length; i++ )
{
if( i >= firstLine && i < firstLine + split.length )
{
if( split[i - firstLine].length() > 15 )
{
signTile.signText[i] = new TextComponentString( split[i - firstLine].substring( 0, 15 ) );
}
else
{
signTile.signText[i] = new TextComponentString( split[i - firstLine] );
}
}
else
{
signTile.signText[i] = new TextComponentString( "" );
}
}
signTile.markDirty();
world.markBlockRangeForRenderUpdate( signTile.getPos(), signTile.getPos() );
}
}
}
// Put everything we collected into the turtles inventory, then return
ItemStack remainder = turtlePlayer.unloadInventory( turtle );
if( !placed && ItemStack.areItemStacksEqual( stack, remainder ) )
{
return stack;
}
else if( !remainder.isEmpty() )
{
return remainder;
}
else
{
return ItemStack.EMPTY;
}
}
}