ActuallyAdditions/src/main/java/de/ellpeck/actuallyadditions/mod/items/ItemWorm.java

package de.ellpeck.actuallyadditions.mod.items;

import java.util.List;

import de.ellpeck.actuallyadditions.mod.ActuallyAdditions;
import de.ellpeck.actuallyadditions.mod.config.values.ConfigBoolValues;
import de.ellpeck.actuallyadditions.mod.entity.EntityWorm;
import de.ellpeck.actuallyadditions.mod.items.base.ItemBase;
import net.minecraft.block.BlockGrass;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.EnumRarity;
import net.minecraft.item.IItemPropertyGetter;
import net.minecraft.item.ItemStack;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.player.UseHoeEvent;
import net.minecraftforge.fml.common.eventhandler.Event.Result;
import net.minecraftforge.fml.common.eventhandler.EventPriority;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ItemWorm extends ItemBase {

    public ItemWorm(String name) {
        super(name);

        MinecraftForge.EVENT_BUS.register(this);

        this.addPropertyOverride(new ResourceLocation(ActuallyAdditions.MODID, "snail"), new IItemPropertyGetter() {
            @Override
            @SideOnly(Side.CLIENT)
            public float apply(ItemStack stack, World world, EntityLivingBase entity) {
                return "snail mail".equalsIgnoreCase(stack.getDisplayName()) ? 1F : 0F;
            }
        });
    }

    @Override
    public EnumActionResult onItemUse(EntityPlayer player, World world, BlockPos pos, EnumHand hand, EnumFacing side, float par8, float par9, float par10) {
        ItemStack stack = player.getHeldItem(hand);
        IBlockState state = world.getBlockState(pos);
        if (EntityWorm.canWormify(world, pos, state)) {
            List<EntityWorm> worms = world.getEntitiesWithinAABB(EntityWorm.class, new AxisAlignedBB(pos.getX() - 1, pos.getY(), pos.getZ() - 1, pos.getX() + 2, pos.getY() + 1, pos.getZ() + 2));
            if (worms == null || worms.isEmpty()) {
                if (!world.isRemote) {
                    EntityWorm worm = new EntityWorm(world);
                    worm.setPosition(pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5);
                    worm.setCustomNameTag(stack.getDisplayName());
                    world.spawnEntity(worm);
                    if (!player.capabilities.isCreativeMode) stack.shrink(1);
                }
                return EnumActionResult.SUCCESS;
            }
        }
        return super.onItemUse(player, world, pos, hand, side, par8, par9, par10);
    }

    @SubscribeEvent(priority = EventPriority.LOW)
    public void onHoe(UseHoeEvent event) {
        if (ConfigBoolValues.WORMS.isEnabled() && event.getResult() != Result.DENY) {
            World world = event.getWorld();
            if (!world.isRemote) {
                BlockPos pos = event.getPos();
                if (world.isAirBlock(pos.up())) {
                    IBlockState state = world.getBlockState(pos);
                    if (state.getBlock() instanceof BlockGrass && world.rand.nextFloat() >= 0.95F) {
                        ItemStack stack = new ItemStack(InitItems.itemWorm, world.rand.nextInt(2) + 1);
                        EntityItem item = new EntityItem(event.getWorld(), pos.getX() + 0.5, pos.getY() + 1, pos.getZ() + 0.5, stack);
                        world.spawnEntity(item);
                    }
                }
            }
        }
    }

    @Override
    public EnumRarity getRarity(ItemStack stack) {
        return EnumRarity.UNCOMMON;
    }
}