Paper/src/main/java/net/minecraft/server/EntityEnderCrystal.java

package net.minecraft.server;

public class EntityEnderCrystal extends Entity {

    public int a = 0;
    public int b;

    public EntityEnderCrystal(World world) {
        super(world);
        this.m = true;
        this.a(2.0F, 2.0F);
        this.height = this.length / 2.0F;
        this.b = 5;
        this.a = this.random.nextInt(100000);
    }

    protected boolean f_() {
        return false;
    }

    protected void a() {
        this.datawatcher.a(8, Integer.valueOf(this.b));
    }

    public void l_() {
        this.lastX = this.locX;
        this.lastY = this.locY;
        this.lastZ = this.locZ;
        ++this.a;
        this.datawatcher.watch(8, Integer.valueOf(this.b));
        int i = MathHelper.floor(this.locX);
        int j = MathHelper.floor(this.locY);
        int k = MathHelper.floor(this.locZ);

        if (this.world.getTypeId(i, j, k) != Block.FIRE.id) {
            this.world.setTypeIdUpdate(i, j, k, Block.FIRE.id);
        }
    }

    protected void b(NBTTagCompound nbttagcompound) {}

    protected void a(NBTTagCompound nbttagcompound) {}

    public boolean K() {
        return true;
    }

    public boolean damageEntity(DamageSource damagesource, int i) {
        if (this.isInvulnerable()) {
            return false;
        } else {
            if (!this.dead && !this.world.isStatic) {
                // CraftBukkit start - All non-living entities need this
                if (org.bukkit.craftbukkit.event.CraftEventFactory.handleNonLivingEntityDamageEvent(this, damagesource, i)) {
                    return false;
                }
                // CraftBukkit end

                this.b = 0;
                if (this.b <= 0) {
                    this.die();
                    if (!this.world.isStatic) {
                        this.world.explode(this, this.locX, this.locY, this.locZ, 6.0F, true); // CraftBukkit - (Entity) null -> this
                    }
                }
            }

            return true;
        }
    }
}