content: package net.minecraft.entity.item;
  
  import com.google.common.collect.Maps;
  import net.minecraft.block.Block;
  import net.minecraft.block.BlockRailBase;
  import net.minecraft.block.BlockRailPowered;
  import net.minecraft.block.state.IBlockState;
  import net.minecraft.entity.Entity;
  import net.minecraft.entity.EntityLivingBase;
  import net.minecraft.entity.EntityMinecartCommandBlock;
  import net.minecraft.entity.ai.EntityMinecartMobSpawner;
  import net.minecraft.entity.monster.EntityIronGolem;
  import net.minecraft.entity.player.EntityPlayer;
  import net.minecraft.init.Blocks;
  import net.minecraft.init.Items;
  import net.minecraft.item.ItemStack;
  import net.minecraft.nbt.NBTTagCompound;
  import net.minecraft.server.MinecraftServer;
  import net.minecraft.util.*;
  import net.minecraft.world.IWorldNameable;
  import net.minecraft.world.World;
  import net.minecraft.world.WorldServer;
  
  import java.util.Map;
  
  public abstract class EntityMinecart extends Entity implements IWorldNameable {
      private boolean isInReverse;
      private String entityName;
      private static final int[][][] matrix = new int[][][]{{{0, 0, -1}, {0, 0, 1}}, {{-1, 0, 0}, {1, 0, 0}}, {{-1, -1, 0}, {1, 0, 0}}, {{-1, 0, 0}, {1, -1, 0}}, {{0, 0, -1}, {0, -1, 1}}, {{0, -1, -1}, {0, 0, 1}}, {{0, 0, 1}, {1, 0, 0}}, {{0, 0, 1}, {-1, 0, 0}}, {{0, 0, -1}, {-1, 0, 0}}, {{0, 0, -1}, {1, 0, 0}}};
      private int turnProgress;
      private double minecartX;
      private double minecartY;
      private double minecartZ;
      private double minecartYaw;
      private double minecartPitch;
      private double velocityX;
      private double velocityY;
      private double velocityZ;
  
      public EntityMinecart(World worldIn) {
          super(worldIn);
          this.preventEntitySpawning = true;
          this.setSize(0.98F, 0.7F);
      }
  
      public static EntityMinecart getMinecart(World worldIn, double x, double y, double z, EntityMinecart.EnumMinecartType type) {
          switch (type) {
              case CHEST:
                  return new EntityMinecartChest(worldIn, x, y, z);
  
              case FURNACE:
                  return new EntityMinecartFurnace(worldIn, x, y, z);
  
              case TNT:
                  return new EntityMinecartTNT(worldIn, x, y, z);
  
              case SPAWNER:
                  return new EntityMinecartMobSpawner(worldIn, x, y, z);
  
              case HOPPER:
                  return new EntityMinecartHopper(worldIn, x, y, z);
  
              case COMMAND_BLOCK:
                  return new EntityMinecartCommandBlock(worldIn, x, y, z);
  
              default:
                  return new EntityMinecartEmpty(worldIn, x, y, z);
          }
      }
  
      protected boolean canTriggerWalking() {
          return false;
      }
  
      protected void entityInit() {
          this.dataWatcher.addObject(17, new Integer(0));
          this.dataWatcher.addObject(18, new Integer(1));
          this.dataWatcher.addObject(19, new Float(0.0F));
          this.dataWatcher.addObject(20, new Integer(0));
          this.dataWatcher.addObject(21, new Integer(6));
          this.dataWatcher.addObject(22, Byte.valueOf((byte) 0));
      }
  
      public AxisAlignedBB getCollisionBox(Entity entityIn) {
          return entityIn.canBePushed() ? entityIn.getEntityBoundingBox() : null;
      }
  
      public AxisAlignedBB getCollisionBoundingBox() {
          return null;
      }
  
      public boolean canBePushed() {
          return true;
      }
  
      public EntityMinecart(World worldIn, double x, double y, double z) {
          this(worldIn);
          this.setPosition(x, y, z);
          this.motionX = 0.0D;
          this.motionY = 0.0D;
          this.motionZ = 0.0D;
          this.prevPosX = x;
          this.prevPosY = y;
          this.prevPosZ = z;
      }
  
      public double getMountedYOffset() {
          return 0.0D;
      }
  
      public boolean attackEntityFrom(DamageSource source, float amount) {
          if (!this.worldObj.isRemote && !this.isDead) {
              if (this.isEntityInvulnerable(source)) {
                  return false;
              } else {
                  this.setRollingDirection(-this.getRollingDirection());
                  this.setRollingAmplitude(10);
                  this.setBeenAttacked();
                  this.setDamage(this.getDamage() + amount * 10.0F);
                  boolean flag = source.getEntity() instanceof EntityPlayer && ((EntityPlayer) source.getEntity()).capabilities.isCreativeMode;
  
                  if (flag || this.getDamage() > 40.0F) {
                      if (this.riddenByEntity != null) {
                          this.riddenByEntity.mountEntity(null);
                      }
  
                      if (flag && !this.hasCustomName()) {
                          this.setDead();
                      } else {
                          this.killMinecart(source);
                      }
                  }
  
                  return true;
              }
          } else {
              return true;
          }
      }
  
      public void killMinecart(DamageSource source) {
          this.setDead();
  
          if (this.worldObj.getGameRules().getBoolean("doEntityDrops")) {
              ItemStack itemstack = new ItemStack(Items.minecart, 1);
  
              if (this.entityName != null) {
                  itemstack.setStackDisplayName(this.entityName);
              }
  
              this.entityDropItem(itemstack, 0.0F);
          }
      }
  
      public void performHurtAnimation() {
          this.setRollingDirection(-this.getRollingDirection());
          this.setRollingAmplitude(10);
          this.setDamage(this.getDamage() + this.getDamage() * 10.0F);
      }
  
      public boolean canBeCollidedWith() {
          return !this.isDead;
      }
  
      public void setDead() {
          super.setDead();
      }
  
      public void onUpdate() {
          if (this.getRollingAmplitude() > 0) {
              this.setRollingAmplitude(this.getRollingAmplitude() - 1);
          }
  
          if (this.getDamage() > 0.0F) {
              this.setDamage(this.getDamage() - 1.0F);
          }
  
          if (this.posY < -64.0D) {
              this.kill();
          }
  
          if (!this.worldObj.isRemote && this.worldObj instanceof WorldServer) {
              this.worldObj.theProfiler.startSection("portal");
              MinecraftServer minecraftserver = ((WorldServer) this.worldObj).getMinecraftServer();
              int i = this.getMaxInPortalTime();
  
              if (this.inPortal) {
                  if (minecraftserver.getAllowNether()) {
                      if (this.ridingEntity == null && this.portalCounter++ >= i) {
                          this.portalCounter = i;
                          this.timeUntilPortal = this.getPortalCooldown();
                          int j;
  
                          if (this.worldObj.provider.getDimensionId() == -1) {
                              j = 0;
                          } else {
                              j = -1;
                          }
  
                          this.travelToDimension(j);
                      }
  
                      this.inPortal = false;
                  }
              } else {
                  if (this.portalCounter > 0) {
                      this.portalCounter -= 4;
                  }
  
                  if (this.portalCounter < 0) {
                      this.portalCounter = 0;
                  }
              }
  
              if (this.timeUntilPortal > 0) {
                  --this.timeUntilPortal;
              }
  
              this.worldObj.theProfiler.endSection();
          }
  
          if (this.worldObj.isRemote) {
              if (this.turnProgress > 0) {
                  double d4 = this.posX + (this.minecartX - this.posX) / (double) this.turnProgress;
                  double d5 = this.posY + (this.minecartY - this.posY) / (double) this.turnProgress;
                  double d6 = this.posZ + (this.minecartZ - this.posZ) / (double) this.turnProgress;
                  double d1 = MathHelper.wrapAngleTo180_double(this.minecartYaw - (double) this.rotationYaw);
                  this.rotationYaw = (float) ((double) this.rotationYaw + d1 / (double) this.turnProgress);
                  this.rotationPitch = (float) ((double) this.rotationPitch + (this.minecartPitch - (double) this.rotationPitch) / (double) this.turnProgress);
                  --this.turnProgress;
                  this.setPosition(d4, d5, d6);
                  this.setRotation(this.rotationYaw, this.rotationPitch);
              } else {
                  this.setPosition(this.posX, this.posY, this.posZ);
                  this.setRotation(this.rotationYaw, this.rotationPitch);
              }
          } else {
              this.prevPosX = this.posX;
              this.prevPosY = this.posY;
              this.prevPosZ = this.posZ;
              this.motionY -= 0.03999999910593033D;
              int k = MathHelper.floor_double(this.posX);
              int l = MathHelper.floor_double(this.posY);
              int i1 = MathHelper.floor_double(this.posZ);
  
              if (BlockRailBase.isRailBlock(this.worldObj, new BlockPos(k, l - 1, i1))) {
                  --l;
              }
  
              BlockPos blockpos = new BlockPos(k, l, i1);
              IBlockState iblockstate = this.worldObj.getBlockState(blockpos);
  
              if (BlockRailBase.isRailBlock(iblockstate)) {
                  this.func_180460_a(blockpos, iblockstate);
  
                  if (iblockstate.getBlock() == Blocks.activator_rail) {
                      this.onActivatorRailPass(k, l, i1, iblockstate.getValue(BlockRailPowered.POWERED).booleanValue());
                  }
              } else {
                  this.moveDerailedMinecart();
              }
  
              this.doBlockCollisions();
              this.rotationPitch = 0.0F;
              double d0 = this.prevPosX - this.posX;
              double d2 = this.prevPosZ - this.posZ;
  
              if (d0 * d0 + d2 * d2 > 0.001D) {
                  this.rotationYaw = (float) (MathHelper.atan2(d2, d0) * 180.0D / Math.PI);
  
                  if (this.isInReverse) {
                      this.rotationYaw += 180.0F;
                  }
              }
  
              double d3 = MathHelper.wrapAngleTo180_float(this.rotationYaw - this.prevRotationYaw);
  
              if (d3 < -170.0D || d3 >= 170.0D) {
                  this.rotationYaw += 180.0F;
                  this.isInReverse = !this.isInReverse;
              }
  
              this.setRotation(this.rotationYaw, this.rotationPitch);
  
              for (Entity entity : this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().expand(0.20000000298023224D, 0.0D, 0.20000000298023224D))) {
                  if (entity != this.riddenByEntity && entity.canBePushed() && entity instanceof EntityMinecart) {
                      entity.applyEntityCollision(this);
                  }
              }
  
              if (this.riddenByEntity != null && this.riddenByEntity.isDead) {
                  if (this.riddenByEntity.ridingEntity == this) {
                      this.riddenByEntity.ridingEntity = null;
                  }
  
                  this.riddenByEntity = null;
              }
  
              this.handleWaterMovement();
          }
      }
  
      protected double getMaximumSpeed() {
          return 0.4D;
      }
  
      public void onActivatorRailPass(int x, int y, int z, boolean receivingPower) {
      }
  
      protected void moveDerailedMinecart() {
          double d0 = this.getMaximumSpeed();
          this.motionX = MathHelper.clamp_double(this.motionX, -d0, d0);
          this.motionZ = MathHelper.clamp_double(this.motionZ, -d0, d0);
  
          if (this.onGround) {
              this.motionX *= 0.5D;
              this.motionY *= 0.5D;
              this.motionZ *= 0.5D;
          }
  
          this.moveEntity(this.motionX, this.motionY, this.motionZ);
  
          if (!this.onGround) {
              this.motionX *= 0.949999988079071D;
              this.motionY *= 0.949999988079071D;
              this.motionZ *= 0.949999988079071D;
          }
      }
  
      @SuppressWarnings("incomplete-switch")
      protected void func_180460_a(BlockPos p_180460_1_, IBlockState p_180460_2_) {
          this.fallDistance = 0.0F;
          Vec3 vec3 = this.func_70489_a(this.posX, this.posY, this.posZ);
          this.posY = p_180460_1_.getY();
          boolean flag = false;
          boolean flag1 = false;
          BlockRailBase blockrailbase = (BlockRailBase) p_180460_2_.getBlock();
  
          if (blockrailbase == Blocks.golden_rail) {
              flag = p_180460_2_.getValue(BlockRailPowered.POWERED).booleanValue();
              flag1 = !flag;
          }
  
          double d0 = 0.0078125D;
          BlockRailBase.EnumRailDirection blockrailbase$enumraildirection = p_180460_2_.getValue(blockrailbase.getShapeProperty());
  
          switch (blockrailbase$enumraildirection) {
              case ASCENDING_EAST:
                  this.motionX -= 0.0078125D;
                  ++this.posY;
                  break;
  
              case ASCENDING_WEST:
                  this.motionX += 0.0078125D;
                  ++this.posY;
                  break;
  
              case ASCENDING_NORTH:
                  this.motionZ += 0.0078125D;
                  ++this.posY;
                  break;
  
              case ASCENDING_SOUTH:
                  this.motionZ -= 0.0078125D;
                  ++this.posY;
          }
  
          int[][] aint = matrix[blockrailbase$enumraildirection.getMetadata()];
          double d1 = aint[1][0] - aint[0][0];
          double d2 = aint[1][2] - aint[0][2];
          double d3 = Math.sqrt(d1 * d1 + d2 * d2);
          double d4 = this.motionX * d1 + this.motionZ * d2;
  
          if (d4 < 0.0D) {
              d1 = -d1;
              d2 = -d2;
          }
  
          double d5 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
  
          if (d5 > 2.0D) {
              d5 = 2.0D;
          }
  
          this.motionX = d5 * d1 / d3;
          this.motionZ = d5 * d2 / d3;
  
          if (this.riddenByEntity instanceof EntityLivingBase) {
              double d6 = ((EntityLivingBase) this.riddenByEntity).moveForward;
  
              if (d6 > 0.0D) {
                  double d7 = -Math.sin(this.riddenByEntity.rotationYaw * (float) Math.PI / 180.0F);
                  double d8 = Math.cos(this.riddenByEntity.rotationYaw * (float) Math.PI / 180.0F);
                  double d9 = this.motionX * this.motionX + this.motionZ * this.motionZ;
  
                  if (d9 < 0.01D) {
                      this.motionX += d7 * 0.1D;
                      this.motionZ += d8 * 0.1D;
                      flag1 = false;
                  }
              }
          }
  
          if (flag1) {
              double d17 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
  
              if (d17 < 0.03D) {
                  this.motionX *= 0.0D;
                  this.motionY *= 0.0D;
                  this.motionZ *= 0.0D;
              } else {
                  this.motionX *= 0.5D;
                  this.motionY *= 0.0D;
                  this.motionZ *= 0.5D;
              }
          }
  
          double d18 = 0.0D;
          double d19 = (double) p_180460_1_.getX() + 0.5D + (double) aint[0][0] * 0.5D;
          double d20 = (double) p_180460_1_.getZ() + 0.5D + (double) aint[0][2] * 0.5D;
          double d21 = (double) p_180460_1_.getX() + 0.5D + (double) aint[1][0] * 0.5D;
          double d10 = (double) p_180460_1_.getZ() + 0.5D + (double) aint[1][2] * 0.5D;
          d1 = d21 - d19;
          d2 = d10 - d20;
  
          if (d1 == 0.0D) {
              this.posX = (double) p_180460_1_.getX() + 0.5D;
              d18 = this.posZ - (double) p_180460_1_.getZ();
          } else if (d2 == 0.0D) {
              this.posZ = (double) p_180460_1_.getZ() + 0.5D;
              d18 = this.posX - (double) p_180460_1_.getX();
          } else {
              double d11 = this.posX - d19;
              double d12 = this.posZ - d20;
              d18 = (d11 * d1 + d12 * d2) * 2.0D;
          }
  
          this.posX = d19 + d1 * d18;
          this.posZ = d20 + d2 * d18;
          this.setPosition(this.posX, this.posY, this.posZ);
          double d22 = this.motionX;
          double d23 = this.motionZ;
  
          if (this.riddenByEntity != null) {
              d22 *= 0.75D;
              d23 *= 0.75D;
          }
  
          double d13 = this.getMaximumSpeed();
          d22 = MathHelper.clamp_double(d22, -d13, d13);
          d23 = MathHelper.clamp_double(d23, -d13, d13);
          this.moveEntity(d22, 0.0D, d23);
  
          if (aint[0][1] != 0 && MathHelper.floor_double(this.posX) - p_180460_1_.getX() == aint[0][0] && MathHelper.floor_double(this.posZ) - p_180460_1_.getZ() == aint[0][2]) {
              this.setPosition(this.posX, this.posY + (double) aint[0][1], this.posZ);
          } else if (aint[1][1] != 0 && MathHelper.floor_double(this.posX) - p_180460_1_.getX() == aint[1][0] && MathHelper.floor_double(this.posZ) - p_180460_1_.getZ() == aint[1][2]) {
              this.setPosition(this.posX, this.posY + (double) aint[1][1], this.posZ);
          }
  
          this.applyDrag();
          Vec3 vec31 = this.func_70489_a(this.posX, this.posY, this.posZ);
  
          if (vec31 != null && vec3 != null) {
              double d14 = (vec3.yCoord - vec31.yCoord) * 0.05D;
              d5 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
  
              if (d5 > 0.0D) {
                  this.motionX = this.motionX / d5 * (d5 + d14);
                  this.motionZ = this.motionZ / d5 * (d5 + d14);
              }
  
              this.setPosition(this.posX, vec31.yCoord, this.posZ);
          }
  
          int j = MathHelper.floor_double(this.posX);
          int i = MathHelper.floor_double(this.posZ);
  
          if (j != p_180460_1_.getX() || i != p_180460_1_.getZ()) {
              d5 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
              this.motionX = d5 * (double) (j - p_180460_1_.getX());
              this.motionZ = d5 * (double) (i - p_180460_1_.getZ());
          }
  
          if (flag) {
              double d15 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
  
              if (d15 > 0.01D) {
                  double d16 = 0.06D;
                  this.motionX += this.motionX / d15 * d16;
                  this.motionZ += this.motionZ / d15 * d16;
              } else if (blockrailbase$enumraildirection == BlockRailBase.EnumRailDirection.EAST_WEST) {
                  if (this.worldObj.getBlockState(p_180460_1_.west()).getBlock().isNormalCube()) {
                      this.motionX = 0.02D;
                  } else if (this.worldObj.getBlockState(p_180460_1_.east()).getBlock().isNormalCube()) {
                      this.motionX = -0.02D;
                  }
              } else if (blockrailbase$enumraildirection == BlockRailBase.EnumRailDirection.NORTH_SOUTH) {
                  if (this.worldObj.getBlockState(p_180460_1_.north()).getBlock().isNormalCube()) {
                      this.motionZ = 0.02D;
                  } else if (this.worldObj.getBlockState(p_180460_1_.south()).getBlock().isNormalCube()) {
                      this.motionZ = -0.02D;
                  }
              }
          }
      }
  
      protected void applyDrag() {
          if (this.riddenByEntity != null) {
              this.motionX *= 0.996999979019165D;
              this.motionY *= 0.0D;
              this.motionZ *= 0.996999979019165D;
          } else {
              this.motionX *= 0.9599999785423279D;
              this.motionY *= 0.0D;
              this.motionZ *= 0.9599999785423279D;
          }
      }
  
      public void setPosition(double x, double y, double z) {
          this.posX = x;
          this.posY = y;
          this.posZ = z;
          float f = this.width / 2.0F;
          float f1 = this.height;
          this.setEntityBoundingBox(new AxisAlignedBB(x - (double) f, y, z - (double) f, x + (double) f, y + (double) f1, z + (double) f));
      }
  
      public Vec3 func_70495_a(double p_70495_1_, double p_70495_3_, double p_70495_5_, double p_70495_7_) {
          int i = MathHelper.floor_double(p_70495_1_);
          int j = MathHelper.floor_double(p_70495_3_);
          int k = MathHelper.floor_double(p_70495_5_);
  
          if (BlockRailBase.isRailBlock(this.worldObj, new BlockPos(i, j - 1, k))) {
              --j;
          }
  
          IBlockState iblockstate = this.worldObj.getBlockState(new BlockPos(i, j, k));
  
          if (BlockRailBase.isRailBlock(iblockstate)) {
              BlockRailBase.EnumRailDirection blockrailbase$enumraildirection = iblockstate.getValue(((BlockRailBase) iblockstate.getBlock()).getShapeProperty());
              p_70495_3_ = j;
  
              if (blockrailbase$enumraildirection.isAscending()) {
                  p_70495_3_ = j + 1;
              }
  
              int[][] aint = matrix[blockrailbase$enumraildirection.getMetadata()];
              double d0 = aint[1][0] - aint[0][0];
              double d1 = aint[1][2] - aint[0][2];
              double d2 = Math.sqrt(d0 * d0 + d1 * d1);
              d0 = d0 / d2;
              d1 = d1 / d2;
              p_70495_1_ = p_70495_1_ + d0 * p_70495_7_;
              p_70495_5_ = p_70495_5_ + d1 * p_70495_7_;
  
              if (aint[0][1] != 0 && MathHelper.floor_double(p_70495_1_) - i == aint[0][0] && MathHelper.floor_double(p_70495_5_) - k == aint[0][2]) {
                  p_70495_3_ += aint[0][1];
              } else if (aint[1][1] != 0 && MathHelper.floor_double(p_70495_1_) - i == aint[1][0] && MathHelper.floor_double(p_70495_5_) - k == aint[1][2]) {
                  p_70495_3_ += aint[1][1];
              }
  
              return this.func_70489_a(p_70495_1_, p_70495_3_, p_70495_5_);
          } else {
              return null;
          }
      }
  
      public Vec3 func_70489_a(double p_70489_1_, double p_70489_3_, double p_70489_5_) {
          int i = MathHelper.floor_double(p_70489_1_);
          int j = MathHelper.floor_double(p_70489_3_);
          int k = MathHelper.floor_double(p_70489_5_);
  
          if (BlockRailBase.isRailBlock(this.worldObj, new BlockPos(i, j - 1, k))) {
              --j;
          }
  
          IBlockState iblockstate = this.worldObj.getBlockState(new BlockPos(i, j, k));
  
          if (BlockRailBase.isRailBlock(iblockstate)) {
              BlockRailBase.EnumRailDirection blockrailbase$enumraildirection = iblockstate.getValue(((BlockRailBase) iblockstate.getBlock()).getShapeProperty());
              int[][] aint = matrix[blockrailbase$enumraildirection.getMetadata()];
              double d0 = 0.0D;
              double d1 = (double) i + 0.5D + (double) aint[0][0] * 0.5D;
              double d2 = (double) j + 0.0625D + (double) aint[0][1] * 0.5D;
              double d3 = (double) k + 0.5D + (double) aint[0][2] * 0.5D;
              double d4 = (double) i + 0.5D + (double) aint[1][0] * 0.5D;
              double d5 = (double) j + 0.0625D + (double) aint[1][1] * 0.5D;
              double d6 = (double) k + 0.5D + (double) aint[1][2] * 0.5D;
              double d7 = d4 - d1;
              double d8 = (d5 - d2) * 2.0D;
              double d9 = d6 - d3;
  
              if (d7 == 0.0D) {
                  p_70489_1_ = (double) i + 0.5D;
                  d0 = p_70489_5_ - (double) k;
              } else if (d9 == 0.0D) {
                  p_70489_5_ = (double) k + 0.5D;
                  d0 = p_70489_1_ - (double) i;
              } else {
                  double d10 = p_70489_1_ - d1;
                  double d11 = p_70489_5_ - d3;
                  d0 = (d10 * d7 + d11 * d9) * 2.0D;
              }
  
              p_70489_1_ = d1 + d7 * d0;
              p_70489_3_ = d2 + d8 * d0;
              p_70489_5_ = d3 + d9 * d0;
  
              if (d8 < 0.0D) {
                  ++p_70489_3_;
              }
  
              if (d8 > 0.0D) {
                  p_70489_3_ += 0.5D;
              }
  
              return new Vec3(p_70489_1_, p_70489_3_, p_70489_5_);
          } else {
              return null;
          }
      }
  
      protected void readEntityFromNBT(NBTTagCompound tagCompund) {
          if (tagCompund.getBoolean("CustomDisplayTile")) {
              int i = tagCompund.getInteger("DisplayData");
  
              if (tagCompund.hasKey("DisplayTile", 8)) {
                  Block block = Block.getBlockFromName(tagCompund.getString("DisplayTile"));
  
                  if (block == null) {
                      this.func_174899_a(Blocks.air.getDefaultState());
                  } else {
                      this.func_174899_a(block.getStateFromMeta(i));
                  }
              } else {
                  Block block1 = Block.getBlockById(tagCompund.getInteger("DisplayTile"));
  
                  if (block1 == null) {
                      this.func_174899_a(Blocks.air.getDefaultState());
                  } else {
                      this.func_174899_a(block1.getStateFromMeta(i));
                  }
              }
  
              this.setDisplayTileOffset(tagCompund.getInteger("DisplayOffset"));
          }
  
          if (tagCompund.hasKey("CustomName", 8) && tagCompund.getString("CustomName").length() > 0) {
              this.entityName = tagCompund.getString("CustomName");
          }
      }
  
      protected void writeEntityToNBT(NBTTagCompound tagCompound) {
          if (this.hasDisplayTile()) {
              tagCompound.setBoolean("CustomDisplayTile", true);
              IBlockState iblockstate = this.getDisplayTile();
              ResourceLocation resourcelocation = Block.blockRegistry.getNameForObject(iblockstate.getBlock());
              tagCompound.setString("DisplayTile", resourcelocation == null ? "" : resourcelocation.toString());
              tagCompound.setInteger("DisplayData", iblockstate.getBlock().getMetaFromState(iblockstate));
              tagCompound.setInteger("DisplayOffset", this.getDisplayTileOffset());
          }
  
          if (this.entityName != null && this.entityName.length() > 0) {
              tagCompound.setString("CustomName", this.entityName);
          }
      }
  
      public void applyEntityCollision(Entity entityIn) {
          if (!this.worldObj.isRemote) {
              if (!entityIn.noClip && !this.noClip) {
                  if (entityIn != this.riddenByEntity) {
                      if (entityIn instanceof EntityLivingBase && !(entityIn instanceof EntityPlayer) && !(entityIn instanceof EntityIronGolem) && this.getMinecartType() == EntityMinecart.EnumMinecartType.RIDEABLE && this.motionX * this.motionX + this.motionZ * this.motionZ > 0.01D && this.riddenByEntity == null && entityIn.ridingEntity == null) {
                          entityIn.mountEntity(this);
                      }
  
                      double d0 = entityIn.posX - this.posX;
                      double d1 = entityIn.posZ - this.posZ;
                      double d2 = d0 * d0 + d1 * d1;
  
                      if (d2 >= 9.999999747378752E-5D) {
                          d2 = MathHelper.sqrt_double(d2);
                          d0 = d0 / d2;
                          d1 = d1 / d2;
                          double d3 = 1.0D / d2;
  
                          if (d3 > 1.0D) {
                              d3 = 1.0D;
                          }
  
                          d0 = d0 * d3;
                          d1 = d1 * d3;
                          d0 = d0 * 0.10000000149011612D;
                          d1 = d1 * 0.10000000149011612D;
                          d0 = d0 * (double) (1.0F - this.entityCollisionReduction);
                          d1 = d1 * (double) (1.0F - this.entityCollisionReduction);
                          d0 = d0 * 0.5D;
                          d1 = d1 * 0.5D;
  
                          if (entityIn instanceof EntityMinecart) {
                              double d4 = entityIn.posX - this.posX;
                              double d5 = entityIn.posZ - this.posZ;
                              Vec3 vec3 = (new Vec3(d4, 0.0D, d5)).normalize();
                              Vec3 vec31 = (new Vec3(MathHelper.cos(this.rotationYaw * (float) Math.PI / 180.0F), 0.0D, MathHelper.sin(this.rotationYaw * (float) Math.PI / 180.0F))).normalize();
                              double d6 = Math.abs(vec3.dotProduct(vec31));
  
                              if (d6 < 0.800000011920929D) {
                                  return;
                              }
  
                              double d7 = entityIn.motionX + this.motionX;
                              double d8 = entityIn.motionZ + this.motionZ;
  
                              if (((EntityMinecart) entityIn).getMinecartType() == EntityMinecart.EnumMinecartType.FURNACE && this.getMinecartType() != EntityMinecart.EnumMinecartType.FURNACE) {
                                  this.motionX *= 0.20000000298023224D;
                                  this.motionZ *= 0.20000000298023224D;
                                  this.addVelocity(entityIn.motionX - d0, 0.0D, entityIn.motionZ - d1);
                                  entityIn.motionX *= 0.949999988079071D;
                                  entityIn.motionZ *= 0.949999988079071D;
                              } else if (((EntityMinecart) entityIn).getMinecartType() != EntityMinecart.EnumMinecartType.FURNACE && this.getMinecartType() == EntityMinecart.EnumMinecartType.FURNACE) {
                                  entityIn.motionX *= 0.20000000298023224D;
                                  entityIn.motionZ *= 0.20000000298023224D;
                                  entityIn.addVelocity(this.motionX + d0, 0.0D, this.motionZ + d1);
                                  this.motionX *= 0.949999988079071D;
                                  this.motionZ *= 0.949999988079071D;
                              } else {
                                  d7 = d7 / 2.0D;
                                  d8 = d8 / 2.0D;
                                  this.motionX *= 0.20000000298023224D;
                                  this.motionZ *= 0.20000000298023224D;
                                  this.addVelocity(d7 - d0, 0.0D, d8 - d1);
                                  entityIn.motionX *= 0.20000000298023224D;
                                  entityIn.motionZ *= 0.20000000298023224D;
                                  entityIn.addVelocity(d7 + d0, 0.0D, d8 + d1);
                              }
                          } else {
                              this.addVelocity(-d0, 0.0D, -d1);
                              entityIn.addVelocity(d0 / 4.0D, 0.0D, d1 / 4.0D);
                          }
                      }
                  }
              }
          }
      }
  
      public void setPositionAndRotation2(double x, double y, double z, float yaw, float pitch, int posRotationIncrements, boolean p_180426_10_) {
          this.minecartX = x;
          this.minecartY = y;
          this.minecartZ = z;
          this.minecartYaw = yaw;
          this.minecartPitch = pitch;
          this.turnProgress = posRotationIncrements + 2;
          this.motionX = this.velocityX;
          this.motionY = this.velocityY;
          this.motionZ = this.velocityZ;
      }
  
      public void setVelocity(double x, double y, double z) {
          this.velocityX = this.motionX = x;
          this.velocityY = this.motionY = y;
          this.velocityZ = this.motionZ = z;
      }
  
      public void setDamage(float p_70492_1_) {
          this.dataWatcher.updateObject(19, Float.valueOf(p_70492_1_));
      }
  
      public float getDamage() {
          return this.dataWatcher.getWatchableObjectFloat(19);
      }
  
      public void setRollingAmplitude(int p_70497_1_) {
          this.dataWatcher.updateObject(17, Integer.valueOf(p_70497_1_));
      }
  
      public int getRollingAmplitude() {
          return this.dataWatcher.getWatchableObjectInt(17);
      }
  
      public void setRollingDirection(int p_70494_1_) {
          this.dataWatcher.updateObject(18, Integer.valueOf(p_70494_1_));
      }
  
      public int getRollingDirection() {
          return this.dataWatcher.getWatchableObjectInt(18);
      }
  
      public abstract EntityMinecart.EnumMinecartType getMinecartType();
  
      public IBlockState getDisplayTile() {
          return !this.hasDisplayTile() ? this.getDefaultDisplayTile() : Block.getStateById(this.getDataWatcher().getWatchableObjectInt(20));
      }
  
      public IBlockState getDefaultDisplayTile() {
          return Blocks.air.getDefaultState();
      }
  
      public int getDisplayTileOffset() {
          return !this.hasDisplayTile() ? this.getDefaultDisplayTileOffset() : this.getDataWatcher().getWatchableObjectInt(21);
      }
  
      public int getDefaultDisplayTileOffset() {
          return 6;
      }
  
      public void func_174899_a(IBlockState p_174899_1_) {
          this.getDataWatcher().updateObject(20, Integer.valueOf(Block.getStateId(p_174899_1_)));
          this.setHasDisplayTile(true);
      }
  
      public void setDisplayTileOffset(int p_94086_1_) {
          this.getDataWatcher().updateObject(21, Integer.valueOf(p_94086_1_));
          this.setHasDisplayTile(true);
      }
  
      public boolean hasDisplayTile() {
          return this.getDataWatcher().getWatchableObjectByte(22) == 1;
      }
  
      public void setHasDisplayTile(boolean p_94096_1_) {
          this.getDataWatcher().updateObject(22, Byte.valueOf((byte) (p_94096_1_ ? 1 : 0)));
      }
  
      public void setCustomNameTag(String name) {
          this.entityName = name;
      }
  
      public String getName() {
          return this.entityName != null ? this.entityName : super.getName();
      }
  
      public boolean hasCustomName() {
          return this.entityName != null;
      }
  
      public String getCustomNameTag() {
          return this.entityName;
      }
  
      public IChatComponent getDisplayName() {
          if (this.hasCustomName()) {
              ChatComponentText chatcomponenttext = new ChatComponentText(this.entityName);
              chatcomponenttext.getChatStyle().setChatHoverEvent(this.getHoverEvent());
              chatcomponenttext.getChatStyle().setInsertion(this.getUniqueID().toString());
              return chatcomponenttext;
          } else {
              ChatComponentTranslation chatcomponenttranslation = new ChatComponentTranslation(this.getName());
              chatcomponenttranslation.getChatStyle().setChatHoverEvent(this.getHoverEvent());
              chatcomponenttranslation.getChatStyle().setInsertion(this.getUniqueID().toString());
              return chatcomponenttranslation;
          }
      }
  
      public enum EnumMinecartType {
          RIDEABLE(0, "MinecartRideable"),
          CHEST(1, "MinecartChest"),
          FURNACE(2, "MinecartFurnace"),
          TNT(3, "MinecartTNT"),
          SPAWNER(4, "MinecartSpawner"),
          HOPPER(5, "MinecartHopper"),
          COMMAND_BLOCK(6, "MinecartCommandBlock");
  
          private static final Map<Integer, EntityMinecart.EnumMinecartType> ID_LOOKUP = Maps.newHashMap();
          private final int networkID;
          private final String name;
  
          EnumMinecartType(int networkID, String name) {
              this.networkID = networkID;
              this.name = name;
          }
  
          public int getNetworkID() {
              return this.networkID;
          }
  
          public String getName() {
              return this.name;
          }
  
          public static EntityMinecart.EnumMinecartType byNetworkID(int id) {
              EntityMinecart.EnumMinecartType entityminecart$enumminecarttype = ID_LOOKUP.get(Integer.valueOf(id));
              return entityminecart$enumminecarttype == null ? RIDEABLE : entityminecart$enumminecarttype;
          }
  
          static {
              for (EntityMinecart.EnumMinecartType entityminecart$enumminecarttype : values()) {
                  ID_LOOKUP.put(Integer.valueOf(entityminecart$enumminecarttype.getNetworkID()), entityminecart$enumminecarttype);
              }
          }
      }
  }
  