cn.nukkit.event.entity.EntityDamageEvent.DamageCause Java Examples

public void applyEffect(Entity entity) {
    switch (this.id) {
        case Effect.POISON: //POISON
            if (entity.getHealth() > 1) {
                entity.attack(new EntityDamageEvent(entity, DamageCause.MAGIC, 1));
            }
            break;
        case Effect.WITHER: //WITHER
            entity.attack(new EntityDamageEvent(entity, DamageCause.MAGIC, 1));
            break;
        case Effect.REGENERATION: //REGENERATION
            if (entity.getHealth() < entity.getMaxHealth()) {
                entity.heal(new EntityRegainHealthEvent(entity, 1, EntityRegainHealthEvent.CAUSE_MAGIC));
            }
            break;
    }
}
 

@Override
public void onEntityCollide(Entity entity) {
    entity.highestPosition -= (entity.highestPosition - entity.y) * 0.5;
    if (!entity.hasEffect(Effect.FIRE_RESISTANCE)) {
        entity.attack(new EntityDamageByBlockEvent(this, entity, DamageCause.LAVA, 4));
    }

    // Always setting the duration to 15 seconds? TODO
    EntityCombustByBlockEvent ev = new EntityCombustByBlockEvent(this, entity, 15);
    Server.getInstance().getPluginManager().callEvent(ev);
    if (!ev.isCancelled()
            // Making sure the entity is acutally alive and not invulnerable.
            && entity.isAlive()
            && entity.noDamageTicks == 0) {
        entity.setOnFire(ev.getDuration());
    }

    super.onEntityCollide(entity);
}
 

public boolean attack(EntityDamageEvent source) {
    if (hasEffect(Effect.FIRE_RESISTANCE)
            && (source.getCause() == DamageCause.FIRE
            || source.getCause() == DamageCause.FIRE_TICK
            || source.getCause() == DamageCause.LAVA)) {
        return false;
    }

    getServer().getPluginManager().callEvent(source);
    if (source.isCancelled()) {
        return false;
    }
    if (this.absorption > 0) {  //Damage Absorption
        float absorptionHealth = this.absorption - source.getFinalDamage() > 0 ? source.getFinalDamage() : this.absorption;
        this.setAbsorption(this.absorption - absorptionHealth);
        source.setDamage(-absorptionHealth, EntityDamageEvent.DamageModifier.ABSORPTION);
    }
    setLastDamageCause(source);
    setHealth(getHealth() - source.getFinalDamage());
    return true;
}
 

public boolean attack(EntityDamageEvent source) {
    if (hasEffect(Effect.FIRE_RESISTANCE)
            && (source.getCause() == DamageCause.FIRE
            || source.getCause() == DamageCause.FIRE_TICK
            || source.getCause() == DamageCause.LAVA)) {
        return false;
    }

    getServer().getPluginManager().callEvent(source);
    if (source.isCancelled()) {
        return false;
    }
    if (this.absorption > 0) {  // Damage Absorption
        this.setAbsorption(Math.max(0, this.getAbsorption() + source.getDamage(EntityDamageEvent.DamageModifier.ABSORPTION)));
    }
    setLastDamageCause(source);
    setHealth(getHealth() - source.getFinalDamage());
    return true;
}
 

public void onCollideWithEntity(Entity entity) {
    this.server.getPluginManager().callEvent(new ProjectileHitEvent(this, MovingObjectPosition.fromEntity(entity)));
    float damage = this.getResultDamage();

    EntityDamageEvent ev;
    if (this.shootingEntity == null) {
        ev = new EntityDamageByEntityEvent(this, entity, DamageCause.PROJECTILE, damage);
    } else {
        ev = new EntityDamageByChildEntityEvent(this.shootingEntity, this, entity, DamageCause.PROJECTILE, damage);
    }
    if (entity.attack(ev)) {
        this.hadCollision = true;

        if (this.fireTicks > 0) {
            EntityCombustByEntityEvent event = new EntityCombustByEntityEvent(this, entity, 5);
            this.server.getPluginManager().callEvent(ev);
            if (!event.isCancelled()) {
                entity.setOnFire(event.getDuration());
            }
        }
    }
    if (closeOnCollide) {
        this.close();
    }
}
 

public void fall(float fallDistance) {
    float damage = (float) Math.floor(fallDistance - 3 - (this.hasEffect(Effect.JUMP) ? this.getEffect(Effect.JUMP).getAmplifier() + 1 : 0));
    if (damage > 0) {
        this.attack(new EntityDamageEvent(this, DamageCause.FALL, damage));
    }

    if (fallDistance > 0.75) {
        BlockVector3 v = new BlockVector3(getFloorX(), getFloorY() - 1, getFloorZ());
        int down = this.level.getBlockIdAt(v.x, v.y, v.z);

        if (down == Item.FARMLAND) {
            if (this instanceof Player) {
                Player p = (Player) this;
                PlayerInteractEvent ev = new PlayerInteractEvent(p, p.getInventory().getItemInHand(), this.temporalVector.setComponents(v.x, v.y, v.z), null, Action.PHYSICAL);
                this.server.getPluginManager().callEvent(ev);
                if (ev.isCancelled()) {
                    return;
                }
            }
            this.level.setBlock(this.temporalVector.setComponents(v.x, v.y, v.z), new BlockDirt(), true, true);
        }
    }
}
 

@Override
public void onEntityCollide(Entity entity) {
    entity.highestPosition -= (entity.highestPosition - entity.y) * 0.5;

    // Always setting the duration to 15 seconds? TODO
    EntityCombustByBlockEvent ev = new EntityCombustByBlockEvent(this, entity, 15);
    Server.getInstance().getPluginManager().callEvent(ev);
    if (!ev.isCancelled()
            // Making sure the entity is actually alive and not invulnerable.
            && entity.isAlive()
            && entity.noDamageTicks == 0) {
        entity.setOnFire(ev.getDuration());
    }

    if (!entity.hasEffect(Effect.FIRE_RESISTANCE)) {
        entity.attack(new EntityDamageByBlockEvent(this, entity, DamageCause.LAVA, 4));
    }

    super.onEntityCollide(entity);
}
 

public boolean attack(EntityDamageEvent source) {
    if (hasEffect(Effect.FIRE_RESISTANCE)
            && (source.getCause() == DamageCause.FIRE
            || source.getCause() == DamageCause.FIRE_TICK
            || source.getCause() == DamageCause.LAVA)) {
        return false;
    }

    getServer().getPluginManager().callEvent(source);
    if (source.isCancelled()) {
        return false;
    }
    if (this.absorption > 0) {  //Damage Absorption
        float absorptionHealth = this.absorption - source.getFinalDamage() > 0 ? source.getFinalDamage() : this.absorption;
        this.setAbsorption(this.absorption - absorptionHealth);
        source.setDamage(-absorptionHealth, EntityDamageEvent.DamageModifier.ABSORPTION);
    }
    setLastDamageCause(source);
    setHealth(getHealth() - source.getFinalDamage());
    return true;
}
 

public void onCollideWithEntity(Entity entity) {
    this.server.getPluginManager().callEvent(new ProjectileHitEvent(this));
    float damage = this.getResultDamage();

    EntityDamageEvent ev;
    if (this.shootingEntity == null) {
        ev = new EntityDamageByEntityEvent(this, entity, DamageCause.PROJECTILE, damage);
    } else {
        ev = new EntityDamageByChildEntityEvent(this.shootingEntity, this, entity, DamageCause.PROJECTILE, damage);
    }
    entity.attack(ev);
    this.hadCollision = true;

    if (this.fireTicks > 0) {
        EntityCombustByEntityEvent event = new EntityCombustByEntityEvent(this, entity, 5);
        this.server.getPluginManager().callEvent(ev);
        if (!event.isCancelled()) {
            entity.setOnFire(event.getDuration());
        }
    }
    this.close();
}
 

@Override
public float getProtectionFactor(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || cause == DamageCause.VOID || cause == DamageCause.CUSTOM || cause == DamageCause.MAGIC) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public void onEntityCollide(Entity entity) {
    if (!entity.hasEffect(Effect.FIRE_RESISTANCE)) {
        entity.attack(new EntityDamageByBlockEvent(this, entity, DamageCause.FIRE, 1));
    }

    EntityCombustByBlockEvent ev = new EntityCombustByBlockEvent(this, entity, 8);
    if (entity instanceof EntityArrow) {
        ev.setCancelled();
    }
    Server.getInstance().getPluginManager().callEvent(ev);
    if (!ev.isCancelled() && entity.isAlive() && entity.noDamageTicks == 0) {
        entity.setOnFire(ev.getDuration());
    }
}
 

@Override
public float getProtectionFactor(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.FALL)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public float getProtectionFactor(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.LAVA && cause != DamageCause.FIRE && cause != DamageCause.FIRE_TICK)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public float getProtectionFactor(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.ENTITY_EXPLOSION && cause != DamageCause.BLOCK_EXPLOSION)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public boolean attack(EntityDamageEvent source) {
    return (source.getCause() == DamageCause.VOID ||
            source.getCause() == DamageCause.FIRE_TICK ||
            source.getCause() == DamageCause.ENTITY_EXPLOSION ||
            source.getCause() == DamageCause.BLOCK_EXPLOSION)
            && super.attack(source);
}
 

@Override
public float getProtectionFactor(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.PROJECTILE)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

public void onStruckByLightning(Entity entity) {
    if (this.attack(new EntityDamageByEntityEvent(entity, this, DamageCause.LIGHTNING, 5))) {
        if (this.fireTicks < 8 * 20) {
            this.setOnFire(8);
        }
    }
}
 

@Override
public float getDamageProtection(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.FALL)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public boolean attack(EntityDamageEvent source) {
    if (!this.isAlive()) {
        return false;
    }

    if (this.isSpectator() || (this.isCreative() && source.getCause() != DamageCause.SUICIDE)) {
        //source.setCancelled();
        return false;
    } else if (this.getAdventureSettings().get(Type.ALLOW_FLIGHT) && source.getCause() == DamageCause.FALL) {
        //source.setCancelled();
        return false;
    } else if (source.getCause() == DamageCause.FALL) {
        if (this.getLevel().getBlock(this.getPosition().floor().add(0.5, -1, 0.5)).getId() == Block.SLIME_BLOCK) {
            if (!this.isSneaking()) {
                //source.setCancelled();
                this.resetFallDistance();
                return false;
            }
        }
    }

    if (super.attack(source)) { //!source.isCancelled()
        if (this.getLastDamageCause() == source && this.spawned) {
            if (source instanceof EntityDamageByEntityEvent) {
                Entity damager = ((EntityDamageByEntityEvent) source).getDamager();
                if (damager instanceof Player) {
                    ((Player) damager).getFoodData().updateFoodExpLevel(0.3);
                }
            }
            EntityEventPacket pk = new EntityEventPacket();
            pk.eid = this.id;
            pk.event = EntityEventPacket.HURT_ANIMATION;
            this.dataPacket(pk);
        }
        return true;
    } else {
        return false;
    }
}
 

@Override
public boolean attack(EntityDamageEvent source) {
    return (source.getCause() == DamageCause.VOID ||
            source.getCause() == DamageCause.FIRE_TICK ||
            source.getCause() == DamageCause.ENTITY_EXPLOSION ||
            source.getCause() == DamageCause.BLOCK_EXPLOSION)
            && super.attack(source);
}
 

@Override
public boolean attack(EntityDamageEvent source) {
    return (source.getCause() == DamageCause.VOID ||
            source.getCause() == DamageCause.FIRE_TICK ||
            source.getCause() == DamageCause.ENTITY_EXPLOSION ||
            source.getCause() == DamageCause.BLOCK_EXPLOSION)
            && super.attack(source);
}
 

public void onStruckByLightning(Entity entity) {
    this.attack(new EntityDamageByEntityEvent(entity, this, DamageCause.LIGHTNING, 5));

    if (this.fireTicks < 8 * 20) {
        this.setOnFire(8);
    }
}
 

@Override
public void doPostAttack(Entity attacker, Entity entity) {
    if (!(entity instanceof EntityHumanType)) {
        return;
    }

    EntityHumanType human = (EntityHumanType) entity;

    int thornsDamage = 0;
    Random rnd = new Random();

    for (Item armor : human.getInventory().getArmorContents()) {
        Enchantment thorns = armor.getEnchantment(Enchantment.ID_THORNS);

        if (thorns != null && thorns.getLevel() > 0) {
            int chance = thorns.getLevel() * 15;

            if (chance > 90) {
                chance = 90;
            }

            if (rnd.nextInt(100) + 1 <= chance) {
                thornsDamage += rnd.nextInt(4) + 1;
            }
        }
    }

    if (thornsDamage > 0) {
        attacker.attack(new EntityDamageEvent(attacker, DamageCause.MAGIC, rnd.nextInt(4) + 1));
    }
}
 

@Override
public float getDamageProtection(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.PROJECTILE)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public float getDamageProtection(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || cause == DamageCause.VOID || cause == DamageCause.CUSTOM || cause == DamageCause.MAGIC) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public float getDamageProtection(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.ENTITY_EXPLOSION && cause != DamageCause.BLOCK_EXPLOSION)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public float getDamageProtection(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.LAVA && cause != DamageCause.FIRE && cause != DamageCause.FIRE_TICK)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public float getDamageProtection(EntityDamageEvent e) {
    DamageCause cause = e.getCause();

    if (level <= 0 || (cause != DamageCause.FALL)) {
        return 0;
    }

    return (float) (getLevel() * getTypeModifier());
}
 

@Override
public void onEntityCollide(Entity entity) {
    if (!entity.hasEffect(Effect.FIRE_RESISTANCE)) {
        entity.attack(new EntityDamageByBlockEvent(this, entity, DamageCause.FIRE, 1));
    }

    EntityCombustByBlockEvent ev = new EntityCombustByBlockEvent(this, entity, 8);
    if (entity instanceof EntityArrow) {
        ev.setCancelled();
    }
    Server.getInstance().getPluginManager().callEvent(ev);
    if (!ev.isCancelled() && entity instanceof Player && !((Player) entity).isCreative()) {
        entity.setOnFire(ev.getDuration());
    }
}
 

public void applyEffect(Entity entity) {
    switch (this.id) {
        case Effect.POISON: //POISON
            if (entity.getHealth() > 1) {
                entity.attack(new EntityDamageEvent(entity, DamageCause.MAGIC, 1));
            }
            break;
        case Effect.WITHER: //WITHER
            entity.attack(new EntityDamageEvent(entity, DamageCause.MAGIC, 1));
            break;
        case Effect.REGENERATION: //REGENERATION
            if (entity.getHealth() < entity.getMaxHealth()) {
                entity.heal(new EntityRegainHealthEvent(entity, 1, EntityRegainHealthEvent.CAUSE_MAGIC));
            }
            break;
        case Effect.SPEED:
            if (entity instanceof Player) {
                ((Player) entity).setMovementSpeed((float) (((this.amplifier + 1) * 0.2 + 1) * 0.1));
            }
            break;
        case Effect.SLOWNESS:
            if (entity instanceof Player) {
                ((Player) entity).setMovementSpeed((float) (((this.amplifier + 1) * -0.15 + 1) * 0.1));
            }
            break;
    }
}