Dwarf multicannon



The Dwarf multicannon is a unique Ranged weapon. Unlike other Ranged weapons, it is not equipped by a player; rather, it is assembled on the ground. To use a Dwarf multicannon, the Dwarf Cannon quest must be completed. The cannon consists of four pieces: the base, the stand, the furnace, and the barrels. After a player has loaded cannonballs into the cannon, the cannon rotates and fires automatically. A player may fight using another weapon while the cannon is firing; thus, cannons are often considered to be a supplement to a primary weapon or fighting method. A player may own multiple cannons, but only one may be assembled at any one time. It is cheapest to buy a cannon from the Grand Exchange. Cannons are worth significantly less than 750,000 coins on the Grand Exchange because many people buy a cannon from Nulodion after completing the quest, and then later decide they don't want it and resell it. On 9 November 2009 the model for the cannon’s Grand Exchange set when dropped on the floor was corrected.

After completion of the Dwarf cannon quest, players may buy the full cannon from the dwarf engineer Nulodion, south of Ice Mountain, for 750,000 coins. Alternatively, the individual parts may be purchased for 187,500 coins each. The "Talk" option on Nulodion must be used to obtain the full cannon, whereas the "Trade" option must be used to buy the parts.

After the 17 November 2009 update cannons no longer waste cannonballs on NPCs in the process of dying. There is also an auto-setup feature.

Although the cannon is a very effective way of training Ranged, it is very expensive.

A potentially profitable use for the Dwarf multicannon is Green Dragons in the wilderness. Although such tactics are despised by many players, it is a very efficient method of earning money off of the drops and training the Ranged skill. It is also very dangerous since green dragons are in the wilderness and players can kill you while you are there, making you lose your items.

On 8 March 2011, the cannon recieved an update, changing its appearance and also allowing you to repair decayed cannons by taking it to Isak in the cannon repair shop of the Artisan Workshop. A guide on repairing cannons may be seen below.

Assembly
The Dwarf multicannon is carried in four pieces in a players inventory. To begin setting it up, the player must place the cannon base on a vacant square surrounded by eight more vacant squares. The rest of the cannon will automatically be set up from there. Finally, the player must use up to 30 cannonballs on the cannon by selecting "Fire."

There are many locations where the cannon cannot be set up, including (but not limited to):
 * Ancient Cavern
 * Ancient Guthix Temple
 * Al Kharid Palace
 * Bandos' throne room
 * Barbarian Assault
 * Castle Wars
 * Chaos Tunnels
 * Duel Arena (except in summoning duels)
 * Dwarven Mine
 * Enchanted Valley
 * Fist of Guthix
 * Fremennik Slayer Dungeon
 * Feldip hills, red chinchompa hunting grounds
 * God Wars Dungeon
 * Ice mountain
 * Killerwatt plane
 * Kuradal's Dungeon
 * Lair of Tarn Razorlor
 * Mahjarrat Ritual Site Cavern
 * Mort Myre Swamp (this does not include the graveyard, where Dessous is located)
 * Nomad's Throne Room
 * Pest Control
 * Player Owned Houses
 * Shade Catacombs
 * Slayer Tower
 * Stealing Creation
 * Stronghold of Player Safety
 * TzHaar City, TzHaar Fight Cave and TzHaar Fight Pit
 * Warriors' Guild
 * Waterbirth Dungeon
 * Water Ravine Dungeon
 * Zogre burial grounds

If a player attempts to set down a cannon base in any of these areas, a message will appear that it cannot be done. One message is Dark forces are preventing the dwarven construction from working. Another message can be the ground is too damp.

In other locations, the cannon may be set up but may be destroyed by an NPC almost instantly, or is almost useless due to limitations:
 * Certain quest bosses; for example, the Giant Roc will destroy a cannon if the player sets it up within its attack range.
 * Clan Wars; cannons cannot be used to harm other players, although cannons may harm their Summoning familiars.
 * The Kalphite Queen, and the King Black Dragon will destroy a cannon if a player attempts to use it.

Mechanics
These are the mechanical aspects of the Cannon. This section includes the rotation, targets, and decay of the cannon's parts.

Revolutions
After the cannon has been set up, loaded, and fired, the barrel will rotate and fire at target within its line-of-sight and range. The cannon barrel rotates in discrete intervals; there are 8 directions the barrel may face, and the barrel makes a 45 degree turn every 0.6 seconds (one game tick), completing a full revolution in 4.8 seconds. The cannon fires one cannonball while facing each direction, so it fires up to 8 cannonballs per revolution.

In a single combat zone, the cannon fires at the monster the player is being attacked by. If the player is not being attacked by any monster – not being hit by any monsters – the cannon fires at multiple monsters. This means that a player can range, mage, or halberd from a "safe spot" in a single combat zone and have the cannon shoot at multiple monsters. However, the player will need to regularly come out of cover to reload the cannon. Alternatively, a player may just go hide and let the cannon do all the work.

In multi-combat areas, the cannon fires at every potential target within line-of-sight and range, even if the player is under attack.

Targets
For each direction the cannon faces during its rotation, there is a specific set of squares relative to the cannon's location that a cannonball may be shot into at that time. This target region can be visualized by a triangle emanating from the cannon barrel. Squares may be cut off from the target region by an obstacle.

Target regions for different directions overlap slightly. This may result in shooting multiple cannonballs at one monster in one cannon revolution, even one that is standing still. Up to two cannonballs may be shot at a monster that takes up a single square per rotation. If it is not in the proper location however, only one, or even zero cannonballs may be shot per rotation.

Additionally, even more cannonballs may be shot at monsters that take up multiple squares. Monsters taking up multiple squares can be shot at using any of the squares that they are covering. For example, up to 4 cannonballs can be shot per rotation at a dragon because they are so big (3 squares by 3 squares) and if done correctly strykewyrms (also 3 squares by 3 squares) can be hit on all 8 rotations.

Players cannot control what target is chosen, thus it may fire at anything around it. However, if a player is already engaged in single combat, the cannon will only fire at the current opponent. A cannon will never initiate combat against a revenant that the player themself can not attack.

Damage
The cannon hits up to 300 life points with each shot. For every 10 life points done by a cannonball, 2 Ranged experience is gained. This is different from regular Ranged experience, where 4 Ranged experience and 1.33 Constitution experience is gained for every 10 life points of damage.

It has been confirmed that equipment attack bonuses and ranged level do not effect the accuracy.

Interestingly, despite being much larger and using larger ammunition, it seems to only have half the max hit of a hand cannon.

Decay
Cannons disappear after a certain period of time being continuously set up. 20 minutes after the cannon has been set up, a message appears that the cannon has almost decayed. 25 minutes after the cannon has been set up, or 5 minutes after the warning message, the cannon will decay. However, the decay timer can easily be restarted by picking up the cannon and re-assembling it again.

After an update on 3 December 2009, after the warning message, cannons' animations would change as to indicate that they were going to decay.

The decay effect is not based on the number of cannonballs shot, but based on the decay timer as stated above.

The cannon's decay is a one-time event, not a continuous degrading associated with declining performance, such as in crystal equipment (Crystal bow and Crystal shield). The cannon is equally effective at all times.

Cannons that do decay are not lost forever, but rather may be re-obtained for free from Nulodion. The fastest way to get to Nulodion is to cast Lassar Teleport (an Ancient Magicks teleport). Alternatively, players may teleport to the monastery using a charged Combat Bracelet and run to Nulodion, or they can choose to run from Edgeville or Falador.

Cannons will also disappear right away if they are set up and then you switch worlds. You can get them back from Nulodion in the same way as when it decays.

If a player dies while a cannon is set up, the cannon stays set up at the location. After it decays, it may be re-obtained for free from Nulodion. It is a common belief that cannons are lost upon death, but in this case the cannon may easily be re-obtained for free.

If a player dies while a cannon, cannon parts, or cannonballs are in the inventory, these items are lost, unless the player is able to re-obtain them from the gravestone. If you are under attack by a strong enemy that may kill you, immediately set up your cannon. If you do die, you won't lose your cannon.

If the cannon itself is destroyed in combat, The player can re-obtain a new dwarf multicannon from Nulodion, free of charge. Monsters that destroy the dwarf muticannon are bosses. Example: King Black Dragon, Corporeal Beast and many more.

Nulodion will not hand out a replacement cannon if the cannon or cannon parts are banked, set up, sold, or dropped. Replaced cannons come loaded with cannonballs equal to the amount loaded in the cannon when the cannon was lost.

Repairing cannons
On 8 March 2011, an update allowed decayed cannons to be replaced by taking them to Isak in the cannon repair shop, located in the Artisan Workshop. Repairing a cannon requires 62+ Smithing, a hammer, cog mould, pipe mould, test cannonball mould, and some Grade II steel ingots. For each fully repaired and tested cannon, 3,846 Smithing XP is earned. The process for repairing cannons is: Pick up the base from the desk near Isak and empty it - there should be 10 broken cogs inside. Use all of these cogs on an anvil to attempt to repair them. If any break, you will need to make replacements by using your ingots in the furnace while holding the cog mould. Once you have 10 cogs, put them back into the base and set the base in the centre of the room. Take the stand from the desk near Isak and empty it - inside are three pipes, all of which will be broken. To fix them, use them in the furnace with the pipe mould in your inventory, then put them back into the stand and set the stand on the cannon base. Snatch the barrel off the parts desk and use it with an anvil to fix it. You'll likely need to use it with an anvil a few times to fully bash it back into shape. Once done, set the barrel on the cannon stand. Yoink the furnance from the last desk and empty it. Inside is a fuse box and a flint, both of which will need fixing on an anvil. Once fixed, fill the fuse box with gunpowder from the barrels between the furnaces and smelter, then place both components back into the furnace, in turn placing that on the cannon barrel. Now the cannon is rebuilt it will need test firing to calibrate it. Use a couple of your steel ingots in a furnace while holding the test cannon ball mould to create 8 test cannonballs. Then, simply load the cannon to initiate the firing sequence.
 * 1) Fix cannon base:
 * 1) Fix cannon stand:
 * 1) Fix cannon barrel:
 * 1) Fix cannon furnace:
 * 1) Test fire:

Usage
Cannons are commonly used by players training Slayer to speed up tasks, in addition to obtaining Ranged experience. Cannons are less commonly used to train Ranged by itself, as Red chinchompas are faster Ranged experience. At about 269 coins per cannonball, the use of a cannon is often considered to be quite expensive. However, the cost is often considered to be justified by the bonuses of using a cannon. A player doing a slayer task can melee almost the entire time, getting nearly as fast melee experience as they would without using a cannon, but also get Ranged experience on top. The cannon will also attack several targets even in a single-way combat area as long as the player is not under attack, (e.g. in a safe spot). On the other hand, cannon will not give you any Constitution xp, which is very useful for ranged pures.

In a crowded multi-combat area, such as the dagannoths under the Lighthouse, the cannon may produce a level of mayhem usually only achieved with Ancient Magicks spells. However, in highly populated multi-combat areas, the player will need to remain almost constantly by the cannon in order to reload it because large numbers of cannonballs will be needed, also, they will probably get negative feedback from other people fighting.

Before the return of the wilderness many people brought cannons to areas of the Wild such as green dragons to speed up the kills and make LOTS of money. Even though these are single combat areas if the user is not attacking anything the cannon will attack any dragon that is not currently being attacked by another player. Because it's a single combat area players will not be able to attack dragons that the cannon has fired upon unless the cannon runs out of ammo or the owner of the cannon attacks a dragon. This has generally had negative feedback with most players who kill green dragons for the bones and hides for money. Many players have complained about this on the forums saying that cannons break single combat zone rules. Now that Pking has returned to the wilderness this is more dangerous now as you can be killed by other players. If you do get attacked it is recommended to not pick you your cannon as it will be lost on death, but to keep it setup and then see Nulodion to re-obtain it for free after you have died.



Trivia



 * The cannon will not shoot at dwarves.
 * The Dwarf multicannon, along with the Fixed device, the Cannon from Mobilising Armies, the Hand cannon, and the crossbow, are the closest things to firearms or modern weapons in RuneScape.
 * The only ammunition for cannons that players can use is cannonballs made from steel. However, Dondakan from the quest Between a Rock... fires Adamantite, Runite, and gold cannonballs from his cannon. In addition to that, in Quick Chat, it is possible to say, "I am smithing: [bronze/iron/steel/mithril/blurite/adamantite/runite] cannonballs."
 * There is a glitch where you can hear the monster that your cannon is shooting at dying when you are nowhere near the cannon.
 * When somebody attempts to set up the cannon near Red Chinchompa's the message "It would be dangerous to set this up now with all these spontaneously combustable rodents around" appears.
 * In Quick-Chat themed world, the warning message for the cannon decaying may not appear in the chatbox.
 * The Old Dwarf multicannon was used to Stop Essence Minning Bots, but This was Not Tested/Confirmed to work With the new cannon.
 * The cannon recieved a massive graphical rework on March 8 2011, along with the release of the Artisan's Workshop.
 * ABR was the first player to recieve the Gold Multicannon. This has the same bonuses as the regular multicannon, but has a golden cosmetic appearance.