ArrowTrap.java

package ladestitute.spelunkcraft.blocks.traps;

import java.util.Random;
import ladestitute.spelunkcraft.Main;
import ladestitute.spelunkcraft.blocks.ContainerBase;
import ladestitute.spelunkcraft.blocks.TileEntityArrowTrap;
import net.minecraft.block.Block;
import net.minecraft.block.BlockDirectional;
import net.minecraft.block.BlockSourceImpl;
import net.minecraft.block.SoundType;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.dispenser.BehaviorDefaultDispenseItem;
import net.minecraft.dispenser.IBehaviorDispenseItem;
import net.minecraft.dispenser.IBlockSource;
import net.minecraft.dispenser.IPosition;
import net.minecraft.dispenser.PositionImpl;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.InventoryHelper;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumBlockRenderType;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.Mirror;
import net.minecraft.util.Rotation;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.registry.RegistryDefaulted;
import net.minecraft.world.World;

public class ArrowTrap extends ContainerBase
{
    //WIP code, fiddling with it as I learn
    //This is mostly just copied from the vanilla code and adjusted as I learn
    //once I figure out  how to handle custom guis/IGuiHandler/etc
    //and how to handle custom guis/IGuiHandler/etc
    //I do have a TE for this but it's currently unused
    ///I just Ihaven't figured out the IGuiHandler stuff specifically for a thing like a Dispenser

    public static final PropertyDirection FACING = BlockDirectional.FACING;
    public static final PropertyBool TRIGGERED = PropertyBool.create("triggered");
    /** Registry for all dispense behaviors. */
    public static final RegistryDefaulted<Item, IBehaviorDispenseItem> DISPENSE_BEHAVIOR_REGISTRY = new RegistryDefaulted<Item, IBehaviorDispenseItem>(new BehaviorDefaultDispenseItem());
    public static Object dispenseBehaviorRegistry;
    protected Random rand = new Random();

    //Trap block, part of Spelunky's set of initial traps: Boulders, Powder Boxes, Push Blocks and Spikes
    public ArrowTrap(String name, Material material)
    {
        super(name, Material.ROCK);
        this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, EnumFacing.NORTH).withProperty(TRIGGERED, Boolean.valueOf(false)));
        setSoundType(SoundType.STONE);
        setHardness(50F);
        setResistance(0.0F);
        setHarvestLevel("pickaxe", 3);
        setCreativeTab(Main.TRAPS_TAB);
    }

    /**
     * How many world ticks before ticking
     */
    public int tickRate(World worldIn)
    {
        return 4;
    }

    @Override
    public void onBlockPlacedBy(World worldIn, BlockPos pos, IBlockState state, EntityLivingBase placer, ItemStack stack)
    {
        if(stack.hasDisplayName())
        {
            TileEntity tileentity = worldIn.getTileEntity(pos);

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

    @Override
    public TileEntity createNewTileEntity(World worldIn, int meta)
    {
        return new TileEntityArrowTrap();
    }

        public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ)
        {
            if (worldIn.isRemote)
            {
                return true;
            }
            else
            {
                TileEntity tileentity = worldIn.getTileEntity(pos);

                if (tileentity instanceof TileEntityArrowTrap)
                {
                    playerIn.displayGUIChest((TileEntityArrowTrap)tileentity);
                }

                return true;
            }
        }

        public void dispense(World worldIn, BlockPos pos)
        {
            BlockSourceImpl blocksourceimpl = new BlockSourceImpl(worldIn, pos);
            TileEntityArrowTrap tileentitydispenser = (TileEntityArrowTrap)blocksourceimpl.getBlockTileEntity();

            if (tileentitydispenser != null)
            {
                int i = tileentitydispenser.getDispenseSlot();

                if (i < 0)
                {
                    worldIn.playEvent(1001, pos, 0);
                }
                else
                {
                    ItemStack itemstack = tileentitydispenser.getStackInSlot(i);
                    IBehaviorDispenseItem ibehaviordispenseitem = this.getBehavior(itemstack);

                    if (ibehaviordispenseitem != IBehaviorDispenseItem.DEFAULT_BEHAVIOR)
                    {
                        tileentitydispenser.setInventorySlotContents(i, ibehaviordispenseitem.dispense(blocksourceimpl, itemstack));
                    }
                }
            }
        }

    /**
     * Called after the block is set in the Chunk data, but before the Tile Entity is set
     */
    public void onBlockAdded(World worldIn, BlockPos pos, IBlockState state)
    {
        super.onBlockAdded(worldIn, pos, state);
        this.setDefaultDirection(worldIn, pos, state);
    }

    private void setDefaultDirection(World worldIn, BlockPos pos, IBlockState state)
    {
        if (!worldIn.isRemote)
        {
            EnumFacing enumfacing = (EnumFacing)state.getValue(FACING);
            boolean flag = worldIn.getBlockState(pos.north()).isFullBlock();
            boolean flag1 = worldIn.getBlockState(pos.south()).isFullBlock();

            if (enumfacing == EnumFacing.NORTH && flag && !flag1)
            {
                enumfacing = EnumFacing.SOUTH;
            }
            else if (enumfacing == EnumFacing.SOUTH && flag1 && !flag)
            {
                enumfacing = EnumFacing.NORTH;
            }
            else
            {
                boolean flag2 = worldIn.getBlockState(pos.west()).isFullBlock();
                boolean flag3 = worldIn.getBlockState(pos.east()).isFullBlock();

                if (enumfacing == EnumFacing.WEST && flag2 && !flag3)
                {
                    enumfacing = EnumFacing.EAST;
                }
                else if (enumfacing == EnumFacing.EAST && flag3 && !flag2)
                {
                    enumfacing = EnumFacing.WEST;
                }
            }

            worldIn.setBlockState(pos, state.withProperty(FACING, enumfacing).withProperty(TRIGGERED, Boolean.valueOf(false)), 2);
        }
    }

    protected IBehaviorDispenseItem getBehavior(ItemStack stack)
    {
        return DISPENSE_BEHAVIOR_REGISTRY.getObject(stack.getItem());
    }

    /**
     * Called when a neighboring block was changed and marks that this state should perform any checks during a neighbor
     * change. Cases may include when redstone power is updated, cactus blocks popping off due to a neighboring solid
     * block, etc.
     */
    public void neighborChanged(IBlockState state, World worldIn, BlockPos pos, Block blockIn, BlockPos fromPos)
    {
        boolean flag = worldIn.isBlockPowered(pos) || worldIn.isBlockPowered(pos.up());
        boolean flag1 = ((Boolean)state.getValue(TRIGGERED)).booleanValue();

        if (flag && !flag1)
        {
            worldIn.scheduleUpdate(pos, this, this.tickRate(worldIn));
            worldIn.setBlockState(pos, state.withProperty(TRIGGERED, Boolean.valueOf(true)), 4);
        }
        else if (!flag && flag1)
        {
            worldIn.setBlockState(pos, state.withProperty(TRIGGERED, Boolean.valueOf(false)), 4);
        }
    }

    public void updateTick(World worldIn, BlockPos pos, IBlockState state, Random rand)
    {
        if (!worldIn.isRemote)
        {
            this.dispense(worldIn, pos);
        }
    }

    /**
     * Called by ItemBlocks just before a block is actually set in the world, to allow for adjustments to the
     * IBlockstate
     */
    public IBlockState getStateForPlacement(World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
    {
        return this.getDefaultState().withProperty(FACING, EnumFacing.getDirectionFromEntityLiving(pos, placer)).withProperty(TRIGGERED, Boolean.valueOf(false));
    }


    /**
     * Called serverside after this block is replaced with another in Chunk, but before the Tile Entity is updated
     */
    public void breakBlock(World worldIn, BlockPos pos, IBlockState state)
    {
        TileEntity tileentity = worldIn.getTileEntity(pos);

        if (tileentity instanceof TileEntityArrowTrap)
        {
            InventoryHelper.dropInventoryItems(worldIn, pos, (TileEntityArrowTrap)tileentity);
            worldIn.updateComparatorOutputLevel(pos, this);
        }

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

    /**
     * Get the position where the dispenser at the given Coordinates should dispense to.
     */
    public static IPosition getDispensePosition(IBlockSource coords)
    {
        EnumFacing enumfacing = (EnumFacing)coords.getBlockState().getValue(FACING);
        double d0 = coords.getX() + 0.7D * (double)enumfacing.getFrontOffsetX();
        double d1 = coords.getY() + 0.7D * (double)enumfacing.getFrontOffsetY();
        double d2 = coords.getZ() + 0.7D * (double)enumfacing.getFrontOffsetZ();
        return new PositionImpl(d0, d1, d2);
    }

    public boolean hasComparatorInputOverride(IBlockState state)
    {
        return true;
    }

    public int getComparatorInputOverride(IBlockState blockState, World worldIn, BlockPos pos)
    {
        return Container.calcRedstone(worldIn.getTileEntity(pos));
    }

    /**
     * The type of render function called. MODEL for mixed tesr and static model, MODELBLOCK_ANIMATED for TESR-only,
     * LIQUID for vanilla liquids, INVISIBLE to skip all rendering
     */
    public EnumBlockRenderType getRenderType(IBlockState state)
    {
        return EnumBlockRenderType.MODEL;
    }

    /**
     * Convert the given metadata into a BlockState for this Block
     */
    public IBlockState getStateFromMeta(int meta)
    {
        return this.getDefaultState().withProperty(FACING, EnumFacing.getFront(meta & 7)).withProperty(TRIGGERED, Boolean.valueOf((meta & 8) > 0));
    }

    /**
     * Convert the BlockState into the correct metadata value
     */
    public int getMetaFromState(IBlockState state)
    {
        int i = 0;
        i = i | ((EnumFacing)state.getValue(FACING)).getIndex();

        if (((Boolean)state.getValue(TRIGGERED)).booleanValue())
        {
            i |= 8;
        }

        return i;
    }

    /**
     * Returns the blockstate with the given rotation from the passed blockstate. If inapplicable, returns the passed
     * blockstate.
     */
    public IBlockState withRotation(IBlockState state, Rotation rot)
    {
        return state.withProperty(FACING, rot.rotate((EnumFacing)state.getValue(FACING)));
    }

    /**
     * Returns the blockstate with the given mirror of the passed blockstate. If inapplicable, returns the passed
     * blockstate.
     */
    public IBlockState withMirror(IBlockState state, Mirror mirrorIn)
    {
        return state.withRotation(mirrorIn.toRotation((EnumFacing)state.getValue(FACING)));
    }

    protected BlockStateContainer createBlockState()
    {
        return new BlockStateContainer(this, new IProperty[] {FACING, TRIGGERED});
    }
}