package net.minecraft.entity.monster;

import java.util.UUID;
import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.attributes.AttributeInstance;
import net.minecraft.entity.ai.attributes.AttributeModifier;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EntityDamageSource;
import net.minecraft.util.EntityDamageSourceIndirect;
import net.minecraft.util.MathHelper;
import net.minecraft.util.Vec3;
import net.minecraft.world.World;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.living.EnderTeleportEvent;

public class EntityEnderman extends EntityMob
{
    private static final UUID attackingSpeedBoostModifierUUID = UUID.fromString("020E0DFB-87AE-4653-9556-831010E291A0");
    private static final AttributeModifier attackingSpeedBoostModifier = (new AttributeModifier(attackingSpeedBoostModifierUUID, "Attacking speed boost", 6.199999809265137D, 0)).setSaved(false);
    public static boolean[] carriableBlocks = new boolean[256];

    /**
     * Counter to delay the teleportation of an enderman towards the currently attacked target
     */
    private int teleportDelay;

    /**
     * A player must stare at an enderman for 5 ticks before it becomes aggressive. This field counts those ticks.
     */
    private int stareTimer;
    private Entity lastEntityToAttack;
    private boolean isAggressive;

    public EntityEnderman(World par1World)
    {
        super(par1World);
        this.setSize(0.6F, 2.9F);
        this.stepHeight = 1.0F;
    }

    protected void applyEntityAttributes()
    {
        super.applyEntityAttributes();
        this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setAttribute(40.0D);
        this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setAttribute(0.30000001192092896D);
        this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(7.0D);
    }

    protected void entityInit()
    {
        super.entityInit();
        this.dataWatcher.addObject(16, new Byte((byte)0));
        this.dataWatcher.addObject(17, new Byte((byte)0));
        this.dataWatcher.addObject(18, new Byte((byte)0));
    }

    /**
     * (abstract) Protected helper method to write subclass entity data to NBT.
     */
    public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound)
    {
        super.writeEntityToNBT(par1NBTTagCompound);
        par1NBTTagCompound.setShort("carried", (short)this.getCarried());
        par1NBTTagCompound.setShort("carriedData", (short)this.getCarryingData());
    }

    /**
     * (abstract) Protected helper method to read subclass entity data from NBT.
     */
    public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound)
    {
        super.readEntityFromNBT(par1NBTTagCompound);
        this.setCarried(par1NBTTagCompound.getShort("carried"));
        this.setCarryingData(par1NBTTagCompound.getShort("carriedData"));
    }

    /**
     * Finds the closest player within 16 blocks to attack, or null if this Entity isn't interested in attacking
     * (Animals, Spiders at day, peaceful PigZombies).
     */
    protected Entity findPlayerToAttack()
    {
        EntityPlayer entityplayer = this.worldObj.getClosestVulnerablePlayerToEntity(this, 64.0D);

        if (entityplayer != null)
        {
            if (this.shouldAttackPlayer(entityplayer))
            {
                this.isAggressive = true;

                if (this.stareTimer == 0)
                {
                    this.worldObj.playSoundAtEntity(entityplayer, "mob.endermen.stare", 1.0F, 1.0F);
                }

                if (this.stareTimer++ == 5)
                {
                    this.stareTimer = 0;
                    this.setScreaming(true);
                    return entityplayer;
                }
            }
            else
            {
                this.stareTimer = 0;
            }
        }

        return null;
    }

    /**
     * Checks to see if this enderman should be attacking this player
     */
    private boolean shouldAttackPlayer(EntityPlayer par1EntityPlayer)
    {
        ItemStack itemstack = par1EntityPlayer.inventory.armorInventory[3];

        if (itemstack != null && itemstack.itemID == Block.pumpkin.blockID)
        {
            return false;
        }
        else
        {
            Vec3 vec3 = par1EntityPlayer.getLook(1.0F).normalize();
            Vec3 vec31 = this.worldObj.getWorldVec3Pool().getVecFromPool(this.posX - par1EntityPlayer.posX, this.boundingBox.minY + (double)(this.height / 2.0F) - (par1EntityPlayer.posY + (double)par1EntityPlayer.getEyeHeight()), this.posZ - par1EntityPlayer.posZ);
            double d0 = vec31.lengthVector();
            vec31 = vec31.normalize();
            double d1 = vec3.dotProduct(vec31);
            return d1 > 1.0D - 0.025D / d0 ? par1EntityPlayer.canEntityBeSeen(this) : false;
        }
    }

    /**
     * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
     * use this to react to sunlight and start to burn.
     */
    public void onLivingUpdate()
    {
        if (this.isWet())
        {
            this.attackEntityFrom(DamageSource.drown, 1.0F);
        }

        if (this.lastEntityToAttack != this.entityToAttack)
        {
            AttributeInstance attributeinstance = this.getEntityAttribute(SharedMonsterAttributes.movementSpeed);
            attributeinstance.removeModifier(attackingSpeedBoostModifier);

            if (this.entityToAttack != null)
            {
                attributeinstance.applyModifier(attackingSpeedBoostModifier);
            }
        }

        this.lastEntityToAttack = this.entityToAttack;
        int i;

        if (!this.worldObj.isRemote && this.worldObj.getGameRules().getGameRuleBooleanValue("mobGriefing"))
        {
            int j;
            int k;
            int l;

            if (this.getCarried() == 0)
            {
                if (this.rand.nextInt(20) == 0)
                {
                    i = MathHelper.floor_double(this.posX - 2.0D + this.rand.nextDouble() * 4.0D);
                    j = MathHelper.floor_double(this.posY + this.rand.nextDouble() * 3.0D);
                    k = MathHelper.floor_double(this.posZ - 2.0D + this.rand.nextDouble() * 4.0D);
                    l = this.worldObj.getBlockId(i, j, k);

                    if (carriableBlocks[l])
                    {
                        this.setCarried(this.worldObj.getBlockId(i, j, k));
                        this.setCarryingData(this.worldObj.getBlockMetadata(i, j, k));
                        this.worldObj.setBlock(i, j, k, 0);
                    }
                }
            }
            else if (this.rand.nextInt(2000) == 0)
            {
                i = MathHelper.floor_double(this.posX - 1.0D + this.rand.nextDouble() * 2.0D);
                j = MathHelper.floor_double(this.posY + this.rand.nextDouble() * 2.0D);
                k = MathHelper.floor_double(this.posZ - 1.0D + this.rand.nextDouble() * 2.0D);
                l = this.worldObj.getBlockId(i, j, k);
                int i1 = this.worldObj.getBlockId(i, j - 1, k);

                if (l == 0 && i1 > 0 && Block.blocksList[i1].renderAsNormalBlock())
                {
                    this.worldObj.setBlock(i, j, k, this.getCarried(), this.getCarryingData(), 3);
                    this.setCarried(0);
                }
            }
        }

        for (i = 0; i < 2; ++i)
        {
            this.worldObj.spawnParticle("portal", this.posX + (this.rand.nextDouble() - 0.5D) * (double)this.width, this.posY + this.rand.nextDouble() * (double)this.height - 0.25D, this.posZ + (this.rand.nextDouble() - 0.5D) * (double)this.width, (this.rand.nextDouble() - 0.5D) * 2.0D, -this.rand.nextDouble(), (this.rand.nextDouble() - 0.5D) * 2.0D);
        }

        if (this.worldObj.isDaytime() && !this.worldObj.isRemote)
        {
            float f = this.getBrightness(1.0F);

            if (f > 0.5F && this.worldObj.canBlockSeeTheSky(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ)) && this.rand.nextFloat() * 30.0F < (f - 0.4F) * 2.0F)
            {
                this.entityToAttack = null;
                this.setScreaming(false);
                this.isAggressive = false;
                this.teleportRandomly();
            }
        }

        if (this.isWet() || this.isBurning())
        {
            this.entityToAttack = null;
            this.setScreaming(false);
            this.isAggressive = false;
            this.teleportRandomly();
        }

        if (this.isScreaming() && !this.isAggressive && this.rand.nextInt(100) == 0)
        {
            this.setScreaming(false);
        }

        this.isJumping = false;

        if (this.entityToAttack != null)
        {
            this.faceEntity(this.entityToAttack, 100.0F, 100.0F);
        }

        if (!this.worldObj.isRemote && this.isEntityAlive())
        {
            if (this.entityToAttack != null)
            {
                if (this.entityToAttack instanceof EntityPlayer && this.shouldAttackPlayer((EntityPlayer)this.entityToAttack))
                {
                    if (this.entityToAttack.getDistanceSqToEntity(this) < 16.0D)
                    {
                        this.teleportRandomly();
                    }

                    this.teleportDelay = 0;
                }
                else if (this.entityToAttack.getDistanceSqToEntity(this) > 256.0D && this.teleportDelay++ >= 30 && this.teleportToEntity(this.entityToAttack))
                {
                    this.teleportDelay = 0;
                }
            }
            else
            {
                this.setScreaming(false);
                this.teleportDelay = 0;
            }
        }

        super.onLivingUpdate();
    }

    /**
     * Teleport the enderman to a random nearby position
     */
    protected boolean teleportRandomly()
    {
        double d0 = this.posX + (this.rand.nextDouble() - 0.5D) * 64.0D;
        double d1 = this.posY + (double)(this.rand.nextInt(64) - 32);
        double d2 = this.posZ + (this.rand.nextDouble() - 0.5D) * 64.0D;
        return this.teleportTo(d0, d1, d2);
    }

    /**
     * Teleport the enderman to another entity
     */
    protected boolean teleportToEntity(Entity par1Entity)
    {
        Vec3 vec3 = this.worldObj.getWorldVec3Pool().getVecFromPool(this.posX - par1Entity.posX, this.boundingBox.minY + (double)(this.height / 2.0F) - par1Entity.posY + (double)par1Entity.getEyeHeight(), this.posZ - par1Entity.posZ);
        vec3 = vec3.normalize();
        double d0 = 16.0D;
        double d1 = this.posX + (this.rand.nextDouble() - 0.5D) * 8.0D - vec3.xCoord * d0;
        double d2 = this.posY + (double)(this.rand.nextInt(16) - 8) - vec3.yCoord * d0;
        double d3 = this.posZ + (this.rand.nextDouble() - 0.5D) * 8.0D - vec3.zCoord * d0;
        return this.teleportTo(d1, d2, d3);
    }

    /**
     * Teleport the enderman
     */
    protected boolean teleportTo(double par1, double par3, double par5)
    {
        EnderTeleportEvent event = new EnderTeleportEvent(this, par1, par3, par5, 0);

        if (MinecraftForge.EVENT_BUS.post(event))
        {
            return false;
        }

        double d3 = this.posX;
        double d4 = this.posY;
        double d5 = this.posZ;
        this.posX = event.targetX;
        this.posY = event.targetY;
        this.posZ = event.targetZ;
        boolean flag = false;
        int i = MathHelper.floor_double(this.posX);
        int j = MathHelper.floor_double(this.posY);
        int k = MathHelper.floor_double(this.posZ);
        int l;

        if (this.worldObj.blockExists(i, j, k))
        {
            boolean flag1 = false;

            while (!flag1 && j > 0)
            {
                l = this.worldObj.getBlockId(i, j - 1, k);

                if (l != 0 && Block.blocksList[l].blockMaterial.blocksMovement())
                {
                    flag1 = true;
                }
                else
                {
                    --this.posY;
                    --j;
                }
            }

            if (flag1)
            {
                this.setPosition(this.posX, this.posY, this.posZ);

                if (this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).isEmpty() && !this.worldObj.isAnyLiquid(this.boundingBox))
                {
                    flag = true;
                }
            }
        }

        if (!flag)
        {
            this.setPosition(d3, d4, d5);
            return false;
        }
        else
        {
            short short1 = 128;

            for (l = 0; l < short1; ++l)
            {
                double d6 = (double)l / ((double)short1 - 1.0D);
                float f = (this.rand.nextFloat() - 0.5F) * 0.2F;
                float f1 = (this.rand.nextFloat() - 0.5F) * 0.2F;
                float f2 = (this.rand.nextFloat() - 0.5F) * 0.2F;
                double d7 = d3 + (this.posX - d3) * d6 + (this.rand.nextDouble() - 0.5D) * (double)this.width * 2.0D;
                double d8 = d4 + (this.posY - d4) * d6 + this.rand.nextDouble() * (double)this.height;
                double d9 = d5 + (this.posZ - d5) * d6 + (this.rand.nextDouble() - 0.5D) * (double)this.width * 2.0D;
                this.worldObj.spawnParticle("portal", d7, d8, d9, (double)f, (double)f1, (double)f2);
            }

            this.worldObj.playSoundEffect(d3, d4, d5, "mob.endermen.portal", 1.0F, 1.0F);
            this.playSound("mob.endermen.portal", 1.0F, 1.0F);
            return true;
        }
    }

    /**
     * Returns the sound this mob makes while it's alive.
     */
    protected String getLivingSound()
    {
        return this.isScreaming() ? "mob.endermen.scream" : "mob.endermen.idle";
    }

    /**
     * Returns the sound this mob makes when it is hurt.
     */
    protected String getHurtSound()
    {
        return "mob.endermen.hit";
    }

    /**
     * Returns the sound this mob makes on death.
     */
    protected String getDeathSound()
    {
        return "mob.endermen.death";
    }

    /**
     * Returns the item ID for the item the mob drops on death.
     */
    protected int getDropItemId()
    {
        return Item.enderPearl.itemID;
    }

    /**
     * Drop 0-2 items of this living's type. @param par1 - Whether this entity has recently been hit by a player. @param
     * par2 - Level of Looting used to kill this mob.
     */
    protected void dropFewItems(boolean par1, int par2)
    {
        int j = this.getDropItemId();

        if (j > 0)
        {
            int k = this.rand.nextInt(2 + par2);

            for (int l = 0; l < k; ++l)
            {
                this.dropItem(j, 1);
            }
        }
    }

    /**
     * Set the id of the block an enderman carries
     */
    public void setCarried(int par1)
    {
        this.dataWatcher.updateObject(16, Byte.valueOf((byte)(par1 & 255)));
    }

    /**
     * Get the id of the block an enderman carries
     */
    public int getCarried()
    {
        return this.dataWatcher.getWatchableObjectByte(16);
    }

    /**
     * Set the metadata of the block an enderman carries
     */
    public void setCarryingData(int par1)
    {
        this.dataWatcher.updateObject(17, Byte.valueOf((byte)(par1 & 255)));
    }

    /**
     * Get the metadata of the block an enderman carries
     */
    public int getCarryingData()
    {
        return this.dataWatcher.getWatchableObjectByte(17);
    }

    /**
     * Called when the entity is attacked.
     */
    public boolean attackEntityFrom(DamageSource par1DamageSource, float par2)
    {
        if (this.isEntityInvulnerable())
        {
            return false;
        }
        else
        {
            this.setScreaming(true);

            if (par1DamageSource instanceof EntityDamageSource && par1DamageSource.getEntity() instanceof EntityPlayer)
            {
                this.isAggressive = true;
            }

            if (par1DamageSource instanceof EntityDamageSourceIndirect)
            {
                this.isAggressive = false;

                for (int i = 0; i < 64; ++i)
                {
                    if (this.teleportRandomly())
                    {
                        return true;
                    }
                }

                return super.attackEntityFrom(par1DamageSource, par2);
            }
            else
            {
                return super.attackEntityFrom(par1DamageSource, par2);
            }
        }
    }

    public boolean isScreaming()
    {
        return this.dataWatcher.getWatchableObjectByte(18) > 0;
    }

    public void setScreaming(boolean par1)
    {
        this.dataWatcher.updateObject(18, Byte.valueOf((byte)(par1 ? 1 : 0)));
    }

    static
    {
        carriableBlocks[Block.grass.blockID] = true;
        carriableBlocks[Block.dirt.blockID] = true;
        carriableBlocks[Block.sand.blockID] = true;
        carriableBlocks[Block.gravel.blockID] = true;
        carriableBlocks[Block.plantYellow.blockID] = true;
        carriableBlocks[Block.plantRed.blockID] = true;
        carriableBlocks[Block.mushroomBrown.blockID] = true;
        carriableBlocks[Block.mushroomRed.blockID] = true;
        carriableBlocks[Block.tnt.blockID] = true;
        carriableBlocks[Block.cactus.blockID] = true;
        carriableBlocks[Block.blockClay.blockID] = true;
        carriableBlocks[Block.pumpkin.blockID] = true;
        carriableBlocks[Block.melon.blockID] = true;
        carriableBlocks[Block.mycelium.blockID] = true;
    }
}
