Fire

Fire is a block. It has an animated face on all four sides, and two faces on the inside at slants. Fire is never created naturally when chunks generate, except in the nether. It will only be created if the player or a Ghast creates it or Lava burns a flammable object. Fire produces 15 units of light.

Behavior
Fire is not available for use in Classic. Flint and Steel is used to place Fire, and when placed, the fire will burn for a short, randomly determined period of time. If nothing flammable is next to it, the flames will die out. Wood, Logs, Leaves, Wool, and Bookcase blocks are all flammable, while TNT will detonate if exposed. Fire burns leaves slightly faster than the other flammable objects. Fire will spread over flammable surfaces, slowly causing all the blocks it can reach to burn away. Fire can climb up walls, across floors and ceilings and over small gaps of at most 2 blocks.

As one would expect, any mob (including the player) will be lit on fire if exposed to it. The fire will obstruct the player's view slightly and they will slowly lose life at a rate of 1/2 heart per second. This the same rate that the player gains health in peaceful, so the fire will not kill you in peaceful. The fire will burn out after a while, but it is a good idea to try to jump into some Water as soon as possible. A water bucket functions as a portable fire extinguisher as a player who is on fire can dump the water at their feet to put out the fire instantly.

Fire can be used as an attack against mobs. Lighting dropped items or blocks on fire will cause them to burn away. This trick can be used to dispose of materials quickly. Anything that touches Lava or Fire, whether it is a mob or a dropped object, will be lit on fire. Although lava can set off TNT, it takes several minutes and is easily fixable if the lava can be reached and cleared.

Punching or hitting the side the fire is on will extinguish the fire on the side that was hit. Placing Water, sand, and gravel will also extinguish fire.

Eternal Fire
If Netherrack, found in The Nether, is lit on fire, it will burn forever. It can therefore be used as a trap/defense, though it will burn dropped items that fall in the fire.

Lit Netherrack can also be used as an alternative to torches. If the player is running low on coal then they can use Netherrack and Flint and Steel instead. It is brighter than torches and can be quickly extinguished. Note that rain won't put out netherrack fire.

Chainmail Armor
It is possible to craft Chainmail Armor out of fire blocks. It is only possible to get actual fire blocks in the players inventory by means of using the /give command or an Inventory editor. Chainmail Armor is crafted like any other armor and has the same durability as Gold.



History
When introduced in Indev Fire could be directly placed before Flint and Steel were added. Before furnaces were added, fire was used to smelt objects.

Since Alpha version 1.2.6, forest fires may start spontaneously if an above-ground lava pool is generated amongst trees during a biome's creation. This is a rare side-effect of starting a new world or exploring.

In versions from Alpha to Beta 1.2_02, a non-netherrack flammable block, like wood, may burn continuously when its sides are surrounded by non-flammable blocks, like stone or dirt (the bottom is not necessary, though it is best not to have anything explicitly flammable underneath). A fire will only stay burning at the top of a flammable block, not on the sides or the bottom. Once the fire is burning - and has continued to do so for ten seconds or more without consuming the block beneath - you may remove all the adjacent blocks, and it will keep going forever. If the block burns away, simply replace and re-ignite until it works. Alternatively, you can punch out any adjacent fires that appear instead of surrounding the block. Eternally burning blocks were fixed in Beta 1.3.

It was also possible to make larger blocks of endless fire by putting flammable blocks diagonally adjacent to a block that is burning continuously. Since the already-burning block counts as non-flammable - it is already on fire - the adjacent blocks may also burn continuously. By igniting multiple blocks this way, you could make a grid of diagonally adjacent burning blocks.

Trivia

 * When smoke hits water, it hisses just as if water has hit a fire.
 * When playing on Peaceful mode, if you start burning, and get away from the fire source, you can't die from the burning; your health regenerates at the same speed that the fire damages it.
 * It is possible for lightning to light a surface on fire during thunderstorms, but it will almost immediately be put out by rain. In rare cases in SMP, fire may not get extinguished.
 * In case you see an area in your world that has many tree stumps, that means a fire moved through that area a while before.

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