RedstoneMachine.java

package slimeknights.tmechworks.blocks;

import com.mojang.realmsclient.gui.ChatFormatting;
import net.minecraft.block.Block;
import net.minecraft.block.BlockPistonBase;
import net.minecraft.block.ITileEntityProvider;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.properties.PropertyEnum;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.resources.I18n;
import net.minecraft.client.util.ITooltipFlag;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.InventoryHelper;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.IStringSerializable;
import net.minecraft.util.NonNullList;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.common.util.Constants;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import slimeknights.mantle.block.EnumBlock;
import slimeknights.mantle.tileentity.TileInventory;
import slimeknights.tmechworks.TMechworks;
import slimeknights.tmechworks.blocks.logic.RedstoneMachineLogicBase;
import slimeknights.tmechworks.library.Util;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.List;
import java.util.Random;

public abstract class RedstoneMachine<E extends Enum<E> & EnumBlock.IEnumMeta & IStringSerializable> extends EnumBlock<E> implements ITileEntityProvider {
    public static final PropertyEnum<DefaultTypes> DEF_TYPE = PropertyEnum.create("type", DefaultTypes.class);
    public static final PropertyDirection FACING = PropertyDirection.create("facing");

    public boolean dropState = true;

    private TileEntity cachedTE;

    protected RedstoneMachine(Material material, PropertyEnum<E> prop, Class<E> clazz) {
        super(material, prop, clazz);
        this.hasTileEntity = true;
        this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, EnumFacing.NORTH));
        this.setHardness(3.5F);
    }

    protected boolean openGui(EntityPlayer player, World world, BlockPos pos) {
        player.openGui(TMechworks.instance, 0, world, pos.getX(), pos.getY(), pos.getZ());
        return true;
    }

    @Override
    @Nonnull
    protected BlockStateContainer createBlockState() {
        return new BlockStateContainer(this, prop, FACING);
    }

    @Override
    public IBlockState getActualState(@Nonnull IBlockState state, IBlockAccess worldIn, BlockPos pos) {
        RedstoneMachineLogicBase baseLogic = (RedstoneMachineLogicBase) worldIn.getTileEntity(pos);

        EnumFacing face = EnumFacing.NORTH;

        if (baseLogic != null) {
            face = baseLogic.getFacingDirection();
        }

        return state.withProperty(FACING, face);
    }

    @Override
    public void neighborChanged(IBlockState state, World worldIn, BlockPos pos, Block blockIn, BlockPos from) {
        RedstoneMachineLogicBase logicBase = (RedstoneMachineLogicBase) worldIn.getTileEntity(pos);

        if (logicBase != null) {
            logicBase.updateRedstone();
        }
    }

    @Override
    public boolean shouldCheckWeakPower(IBlockState state, IBlockAccess world, BlockPos pos, EnumFacing side)
    {
        return true;
    }

    public boolean hasFacingDirection() {
        return true;
    }

    @Override
    public void onBlockPlacedBy(World worldIn, BlockPos pos, IBlockState state, EntityLivingBase placer, ItemStack stack) {
        super.onBlockPlacedBy(worldIn, pos, state, placer, stack);

        // set custom name from named stack
        if (stack.hasDisplayName()) {
            TileEntity tileentity = worldIn.getTileEntity(pos);

            if (tileentity instanceof TileInventory) {
                ((TileInventory) tileentity).setCustomName(stack.getDisplayName());
            }
        }

        if (!hasFacingDirection())
            return;

        RedstoneMachineLogicBase baseLogic = (RedstoneMachineLogicBase) worldIn.getTileEntity(pos);

        if (baseLogic == null) {
            return;
        }

        baseLogic.setFacingDirection(EnumFacing.getDirectionFromEntityLiving(pos, placer));
    }

    @Override
    public int getMetaFromState(IBlockState state) {
        return 0;
    }

    @Override
    public IBlockState getStateFromMeta(int meta) {
        return getDefaultState();
    }

    @Override
    public void getDrops(NonNullList<ItemStack> items, IBlockAccess world, BlockPos pos, IBlockState state, int fortune) {
        RedstoneMachineLogicBase tile = (RedstoneMachineLogicBase) world.getTileEntity(pos);
        if(tile == null && cachedTE instanceof RedstoneMachineLogicBase)
            tile = (RedstoneMachineLogicBase)cachedTE;

        if (!dropState || tile == null) {
            super.getDrops(items, world, pos, state, fortune);
            return;
        }

        Random rand = world instanceof World ? ((World) world).rand : RANDOM;

        Item item = this.getItemDropped(state, rand, fortune);
        if (item != null) {
            items.add(tile.storeTileData(new ItemStack(item, 1, this.damageDropped(state))));
        }
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void addInformation(ItemStack stack, @Nullable World worldIn, List<String> tooltip, ITooltipFlag flagIn) {
        if(!stack.hasTagCompound())
            return;

        NBTTagCompound compound = stack.getTagCompound();
        if(compound.hasKey("BlockEntityTag", Constants.NBT.TAG_COMPOUND)) {
            NBTTagCompound tags = compound.getCompoundTag("BlockEntityTag");

            if(tags.hasKey("Disguise", Constants.NBT.TAG_COMPOUND)){
                ItemStack disguise = new ItemStack(tags.getCompoundTag("Disguise"));
                if(disguise != ItemStack.EMPTY) {
                    tooltip.add(ChatFormatting.BOLD + I18n.format(Util.prefix("hud.disguise")));
                    tooltip.add(disguise.getDisplayName());
                }
            }

            if(tags.hasKey("Items", Constants.NBT.TAG_LIST)){
                NBTTagList items = tags.getTagList("Items", Constants.NBT.TAG_COMPOUND);

                if(items.tagCount() > 0){
                    tooltip.add(ChatFormatting.BOLD + I18n.format(Util.prefix("hud.items")));
                }

                for(int i = 0; i < items.tagCount(); ++i) {
                    NBTTagCompound itemTag = items.getCompoundTagAt(i);
                    int slot = itemTag.getByte("Slot") & 255;

                    ItemStack item = new ItemStack(itemTag);
                    tooltip.add(I18n.format(Util.prefix("hud.slot"), slot, item.getDisplayName(), item.getCount()));
                }
            }
        }
    }

    /////////////////////////
    // BlockContainer Code //
    /////////////////////////

    protected boolean isInvalidNeighbor(World worldIn, BlockPos pos, EnumFacing facing) {
        return worldIn.getBlockState(pos.offset(facing)).getMaterial() == Material.CACTUS;
    }

    protected boolean hasInvalidNeighbor(World worldIn, BlockPos pos) {
        return this.isInvalidNeighbor(worldIn, pos, EnumFacing.NORTH) || this.isInvalidNeighbor(worldIn, pos, EnumFacing.SOUTH) || this.isInvalidNeighbor(worldIn, pos, EnumFacing.WEST) || this.isInvalidNeighbor(worldIn, pos, EnumFacing.EAST);
    }

    /**
     * Called on both Client and Server when World#addBlockEvent is called. On the Server, this may perform additional
     * changes to the world, like pistons replacing the block with an extended base. On the client, the update may
     * involve replacing tile entities, playing sounds, or performing other visual actions to reflect the server side
     * changes.
     */
    public boolean eventReceived(IBlockState state, World worldIn, BlockPos pos, int id, int param) {
        super.eventReceived(state, worldIn, pos, id, param);
        TileEntity tileentity = worldIn.getTileEntity(pos);
        return tileentity != null && tileentity.receiveClientEvent(id, param);
    }

    /////////////////////////
    // BlockInventory Code //
    /////////////////////////

    // inventories usually need a tileEntity
    @Override
    public boolean hasTileEntity(IBlockState state) {
        return true;
    }

    @Nonnull
    @Override
    public abstract TileEntity createNewTileEntity(@Nonnull World worldIn, int meta);

    @Override
    public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumHand hand, EnumFacing side, float clickX, float clickY, float clickZ) {
        if (player.isSneaking()) {
            return false;
        }

        if (!world.isRemote) {
            return this.openGui(player, world, pos);
        }

        return true;
    }

    @Override
    public void breakBlock(World worldIn, @Nonnull BlockPos pos, @Nonnull IBlockState state) {
        TileEntity tileentity = worldIn.getTileEntity(pos);
        cachedTE = tileentity;

        if (tileentity instanceof TileInventory) {
            if (!dropState)
                InventoryHelper.dropInventoryItems(worldIn, pos, (IInventory) tileentity);
            worldIn.updateComparatorOutputLevel(pos, this);
        }

        super.breakBlock(worldIn, pos, state);
    }

    @Override
    public int damageDropped(IBlockState state) {
        return getMetaFromState(state);
    }

    public enum DefaultTypes implements IEnumMeta, IStringSerializable {
        NORMAL;

        @Override
        public String getName() {
            return toString().toLowerCase();
        }

        @Override
        public int getMeta() {
            return ordinal();
        }
    }

    @Override
    public boolean canHarvestBlock(IBlockAccess world, BlockPos pos, EntityPlayer player)
    {
        return true;
    }

    /**
     * Set default BlockEntityTag nbt for item
     */
    public void setDefaultNBT(NBTTagCompound tags) {
        tags.setTag("Items", new NBTTagList());
        tags.setInteger("InventorySize", 0);
    }
}