Firework Rocket

Firework Rocket

Type	Manufactured items‎
Durability	0 (one use)
Renewable	Yes
Stackable	Yes (64)
Internal ID	22
Network ID	76
Entity ID	fireworks_rocket
First appearances	See History
Data value	dec: 401 hex: 191 bin: 110010001
Name	fireworks[until 1.13] firework_rocket[upcoming 1.13]

Firework rockets are items and entities used to create decorative explosions and to boost players flying with elytra.

Obtaining

In Java Edition, fireworks can only be obtained by crafting and commands.

Crafting

Ingredients	Crafting recipe	Description
Paper + Gunpowder	3	When crafted this way (without a firework star), the rocket will have no explosion effects.
Any Firework Star + Paper + Gunpowder	3	Adding more gunpowder increases the duration of the rocket. Up to three gunpowder can be used. Up to five firework stars can also be used with three gunpowder. Up to seven firework stars can be used by using firework stars instead of additional gunpowder. All firework stars will go off simultaneously when the rocket detonates.

Creative inventory

Five pre-made firework rockets are listed in the Creative inventory.^{[Legacy Console Edition only]}

They are equivalent to the following rockets:

Crafting the firework star:	Adding a fade color:	Crafting the firework:	Preview
	No fade color
	No fade color

Usage

Launching fireworks

To launch a firework rocket, use its item on a block. They can also be launched from dispensers.

Elytra

When you hold a firework rocket in your hand and are gliding with elytra, using the firework rocket will boost the flying speed. If the rocket is equipped with a firework star of any kind, 8 () or under(depending on the armor points) damage will be dealt to the player. The duration or strength of the speed boost depends on the flight duration of the firework rocket.

Behavior

See also: Firework Star § Effects

Once launched, fireworks will fly out vertically, with random horizontal offset up to 5 blocks. In the Bedrock Edition, fireworks can fly in any direction. After some time, the firework will explode into a colorful explosion based on the effects of the firework stars added upon crafting, or no explosion if no firework star was used. If multiple firework stars were added to the rocket upon crafting, they will all explode simultaneously.

The explosion of firework rockets deals 2.5 hearts of damage, per firework star. There is also a delay between detonation and the player hearing the sound, emulating real fireworks, but this sound travels much more slowly than in the real world. The explosion of a firework can be seen 64 blocks away, regardless of its height.

Care should be taken during firework assembly so as not to exceed the (unmodded) particle limit of 16,384 with fireworks. If the limit is exceeded, the oldest particles are removed before displaying new ones, resulting in severely diminished firework quality / duration. At most a firework should have 3 trail stars, more than that could waste diamonds, firework stars, and other fireworks. Particle counts per star are:

Ball Type	Plain	Trail
Small	98	~1300
Large	387	4000+
Star	122	~1600
Creeper	266	~3500
Burst	72	~930

Twinkle effect adds 2 particles to the count.

Like most other entities, they can be moved by water and explosions, and teleported via portals. They also cannot move through solid surfaced blocks, upon hitting one they will either move to a side or explode based on the duration. If a firework explodes under a block, its explosion will be flattened.

Duration and direction

Fireworks travel different heights based on the amount of gunpowder added. The number will be displayed as a tag on the item's tooltip with the description of "Flight Duration".

The height it rises is between 12 to 22 blocks with 1 gunpowder, 23 to 39 blocks with 2 gunpowder, and 40 to 60 blocks with 3 gunpowder. (Note: Using command blocks, firework rockets with higher durations will go much higher and keep accelerating with virtually no terminal velocity. If the duration is long enough, the firework rocket could reach heights of over 1000000 blocks and speeds of over 10000 m/s in a matter of minutes. Such fireworks with significant X and Z motions will speed up sideways exponentially and reach outside the world boundary in a matter of seconds.)

When spawned fireworks have a vertical speed of .05 and a random small X and Z speed (random value near zero with a standard deviation of .001). Each firework also determines its lifetime in ticks by 10 &times (number of gunpowder + 1) + random value from 0 to 6 (exclusive) + random value from 0 to 7 (exclusive), after which it will explode. Each tick, the firework will accelerate horizontally by multiplying its X and Z velocities by 1.15, and vertically by adding a constant factor of .04.

Fireworks can be made to travel different directions by being dispensed or launched under flowing water. The firework's direction then rapidly arcs to the horizontal and the travel distance increases to a point further than the height.

Data values

See also: Chunk format and Player.dat format

As an item, firework rockets have an ID name of minecraft:fireworks^{[until 1.13]} minecraft:firework_rocket^{[upcoming 1.13]} and an ID number of 401. As an entity, firework rockets have an entity ID of fireworks_rocket and a network ID of 22.

• 
  Entity data
  • Tags common to all entities see Template:Nbt inherit/entity/template
  • 
     Life: The number of ticks this fireworks rocket has been flying for.
  • 
     LifeTime: The number of ticks before this fireworks rocket explodes. This value is randomized when the firework is launched: ((Flight + 1) * 10 + random(0 to 5) + random(0 to 6))
  • 
     FireworksItem: The crafted Firework Rocket item.
    • 
       tag: The tag tag.
      • 
         Explosion: One of these may appear on a firework star.
        • 
           Flicker: 1 or 0 (true/false) - true if this explosion will have the Twinkle effect (glowstone dust). May be absent.
        • 
           Trail: 1 or 0 (true/false) - true if this explosion will have the Trail effect (diamond). May be absent.
        • 
           Type: The shape of this firework's explosion. 0 = Small Ball, 1 = Large Ball, 2 = Star-shaped, 3 = Creeper-shaped, 4 = Burst. Other values will be named "Unknown Shape" and render as Small Ball.
        • 
           Colors: Array of integer values corresponding to the primary colors of this firework's explosion. If custom color codes are used, the game will render it as "Custom" in the tooltip, but the proper color will be used in the explosion. Custom colors are integers in the same format as the color tag from Display Properties.
        • 
           FadeColors: Array of integer values corresponding to the fading colors of this firework's explosion. Same handling of custom colors as Colors. May be absent.
      • 
         Fireworks: One of these may appear on a firework rocket.
        • 
           Flight: Indicates the flight duration of the firework (equals the amount of gunpowder used in crafting the rocket). While this value can be anything from -128 to 127, values of -2 and under almost never detonate at all.
        • 
           Explosions: List of compounds representing each explosion this firework will cause.
          • 
            Same format as 'Explosion' compound on a firework star, as described above.

Video

Note: This video is outdated, as the crafting recipe now produces 3 firework rockets instead of 1 since 1.10.

History

Official release
November 24, 2012					Jeb stated that there may be fireworks in Minecraft at the Future Updates with the Minecraft PC Team panel at MineCon 2012.
December 5, 2012					Jeb released the first image of fireworks, along with the information that colors, fade, height, effects and shapes will be craftable.
1.4.6			12w49a		Added firework rockets.
			12w50a		Added sound and more effects to firework rockets.
1.10			16w20a		Firework rocket recipe now produces 3 rockets, rather than 1.
1.11			16w32a		The entity ID is changed from FireworksRocketEntity to fireworks_rocket.
1.11.1			16w50a		Firework rockets can now damage entities that are within their explosion radius.
					Firework rockets can now boost players while flying with an elytra.
Upcoming Java Edition
1.13			17w47a		The ID has been changed from fireworks to firework_rocket.
					The fade effects on fireworks can now be added by combining the firework star with dyes.
Bedrock Edition
1.2			build 1		Added firework rockets.
Legacy Console Edition
TU19	CU7	1.12	Patch 1	Patch s1	Added firework rockets.
TU46	CU36	1.38	Patch 15		Updated crafting interface to allow crafting Firework Stars and Fireworks.
TU53	CU43	1.49	Patch 23	Patch s3	Firework rockets can now boost players while flying with an elytra.
					Firework rockets now damage user if there is a firework star applicated to the firework rocket.
TU56	CU47	1.55	Patch 26	Patch s6	Firework rockets now produce 3 rockets upon crafting them instead of 1.

Issues

Issues relating to "Firework Rocket" are maintained on the bug tracker. Report issues there.

Trivia

• Launching a rocket by hand on a wooden pressure plate will activate it. The same doesn't hold for stone pressure plates, or for a dispenser placing a rocket onto a wooden pressure plate.
• 2012 New Years is what inspired Jeb to add fireworks.
• If you shoot a firework into a Nether portal, it will explode in the Nether.

Gallery

• 

  Jeb's first image of Fireworks, also showing that they can be shot from dispensers.

• 

  1.4.6 Release image.

• 

  An example of a flattened firework explosion.

References

Items

View at: Template:Items/content [edit]

Entities

View at: Template:Entities/content [edit]