- [Deutsch: Freudenfeuer]?
- Française: Feu de Bois
Introduction
Bonfires are used to create various products which include charcoal, ash, lime and grilled fish. All those products are created at a certain heat ranges. Charcoal does not need any resource to be added to the fire, because it's created by the heat. Other products are produced by transforming resources that are added to the fire.
In order to build bonfires, you need to have the Controlled Burn skill from the University of Body. Building a bonfire will then show up in your "Projects" menu.
You probably want to see the separate page for bonfire Recipes. Raw data here.
Note: If you light a bonfire on accident that you have built just as wood storage, there is no way to put it out. To reclaim the wood before it all burns, just tear the bonfire down (from the utilities menu) :)
Technical Details and Definitions
- Temperature: The temperature of a bonfire is the maximum amount of wood the bonfire consumes with one tick. All bonfires start at temperature of 1.
- Tick: A tick happens when a bonfire consumes wood, charcoal is created or destroyed, temperature is lowered using water, and ingredients are made into products. All of this happens at the same time, but in a certain order. The interval between ticks is exactly 10 teppyseconds long. First tick happens the instant the bonfire is lit.
Each tick has two phases, which happen in the following order:
1. The temperature adjustment phase:
- Increases temperature by one if at least one wood is available.
- Decreases temperature by one if no wood is available.
- Decreases temperature by one for every jug of water added.
2. Ingredient production phase:
- Destroys up to the current temperature amount of wood or maximum available wood, whichever is smaller.
- Creates or destroys charcoal, if temperature is in the right range.
- Converts ingredients to products at a certain ratio if they are within their burning temperature range. (A special case is when the ratio is zero, then ingredients are simply destroyed)
Ingredients and wood can be added to the bonfire between ticks and will stay in the bonfire unchanged until the next tick.
Special types of bonfires
- Static bonfire: A bonfire with sufficient wood to reach the desired temperature without user intervention. The minimum amount of wood required to reach temperature n using a static bonfire is n*(n-1)/2+1. Ingredients are often added when the bonfire reaches a certain amount of wood left.
- Stoked bonfire: A bonfire which starts with one or two wood and to which one wood and, optionally, ingredients are added when the amount of wood in the bonfire reaches zero. It takes n wood to reach a temperature of n using a stoked bonfire. A special case of a stoked bonfire is a constant temperature bonfire to which, in addition to one wood, a jug of water is added to keep the temperature constant.
- Oscillating bonfire: A bonfire with an oscillating temperature. Either a static or a stoked bonfire is used to reach the desired temperature, then the bonfire temperature is lowered by n by depriving the bonfire of wood and waiting n ticks. Some kind of timing mechanism is usually employed. Popular methods include: Beer kettles, running another bonfire or a group of bonfires, using a tree or a bush, using chat timestamps and using an out of game timer.
Notation
Sometimes special notation is used to describe a stoked or an oscillating bonfire in a compact form:
For example, the best stoked charcoal bonfire (without the use of water) can be written as 2+1^7 This can be decoded as:
- 1. Make a 2 wood bonfire and light it
- 2. Wait for available wood to reach 0 and add 1 wood. Repeat 7 times.
- 3. Wait for the bonfire to burn out.
Slightly different notation is used for oscillating bonfire. For example, the most wood efficient oscillating charcoal bonfire can be written as 2+1^2+(1+0)^n This can be decoded as:
- 1. Make a 2 wood bonfire and light it
- 2. Wait for available wood to reach 0 then add 1 wood. Repeat twice.
- 3. Wait for available wood to reach 0.
- 4. Add 1 wood. Wait for another tick to pass without adding more wood. Repeat n times.
- 5. Wait for the bonfire to burn out.
Other notation has been constructed but it is rarely used.
Current Research results
| research status | resource | product | Heat ranges /rules/ results | contributors |
| DONE | Heat | charcoal | generates 0.5 charcoal/tick at heat 4-8 ; destroys 0.5 charcoal/tick at heat 13+ | Niseg,Roen |
| DONE | Papyrus | ash | burns 1/tick; generates 4/9(0.44...) ash/tick at heat 5-10 | Sigil,Hob, Yaos, Tamutnefret, Niseg |
| DONE | Carrots | ash | burns 8/tick at heat 1+; generates 1.5 ash/tick at heat 15-24 | Sigil,Hob, Yaos,Niseg |
| DONE | Garlic | ash | burns 4/tick at heat 1+; generates 11/9(1.22...) ash/tick at heat 9-11 | Sigil,Hob, Yaos, Niseg |
| Almost done. See note | Cabbage | ash | burns 13/tick at heat 1+; about 1.82 ash/tick at heat 20-30 | Ryzlar,Anonymous,Niseg,Trucidation |
| inconclusive results | Leeks | unknown | don't seem to burn even at 20+ heat | Sigil,Hob, Yaos |
| inconclusive results | Onions | unknown | don't burn even at heat 1-50+ | Sigil,Hob, Yaos, Trucidation |
| mostly Done may need a little more study | Limestone | lime | burns 1/tick at heat 1+ ; 0.1 lime/tick at heat 2-6, 0.7 lime/tick at heat 7-9 | Ryzlar, Trucidation , Niseg |
| DONE | Fish | Grilled Fish | burns 1/tick at heat 10+; produces 1 grilled fish/tick at heat 10-20; note that this is per type of fish, and 2 or more types of fish can be done simultaneously | Brant, Trucidation |
Comments
- closed papyrus ash because of new data. unless someone want to test a fraction with a large denominator 4/9 is good enough -Niseg.
- after experimenting with garlic again i came to new conclusion which are much different than predicted. please varify my results and update your garlic ash formulas. - Niseg
- The amount of ash cabbages produce per tick lies in [20/11,11/6) -Trucidation
- i made a 2+28 stoked bonfire, added 130 cabbage @ 20 heat and got 18 ash out of it -> so its 1.8 ash/13cabbage like the graphik says - gspusi
- Trucidation is trying to be more precise. It's very close to 1.8 ash/13 cabbage, but for 130 cabbage, anything in the range he gave would round down to 18 ash. In order to narrow it down even more we'd have to do a long oscillated bonfire across the range using a ton of cabbage, which I suspect is how he got his info. Still, do we really need to worry about a hundredth of a unit of ash? :) -Kharam
- papyrus is the most effective way to make ash -> 0.44 ash / 1 papyrus ; 0.31 ash / 1 garlic ; 0.19 ash / 1 carrot ; 0.14 ash / 1 cabbage
- Does stoking work for veggies -> ash like it does for wood -> heat? If so, then cabbage is most efficient, since it's 1.82 ash/cabbage. - Taral (Did a quick test on this... it appears that amounts of veggies less than the normal per-tick consumption rate will still burn productively, but produce proportionately less ash, so perhaps it'd be better to think of the conversion rates in terms of ash per veggie instead of ash per tick. -Kharam)
- If you have massive amounts of carrots and/or cabbages, The most efficient way to make ash is to use Oscillated bonfires (2 groups of 5 is easily done for about 200 ash/minute) at heats 22-23 using cabbages and carrots. The extra heat gives you extra time to add the specific amounts of vegetables. an alternative is to run carrot only or cabbage only fires. –Niseg
To Do
- Determine whether 0.1 lime/tick is produced at temps 10+.
- Reduce cabbage ash/tick range. proposed fires : 78 cabbage at productive heat if it yields 11 ash the yeild should be 11/6
- Test leeks at higher temps.
Applications
Static Bonfires
Charcoal production by the use of static bonfires is very inefficient and has very limited use. The most efficient static bonfire is made from 29 wood and gives 4 charcoal (7.25 wood/charcoal). The 2nd best is one of size 37 which gives 5 charcoal (7.4 wood/charcoal) but might be preferrable because of less clicking involved.
| Initial bonfire size | Charcoal produced |
| 1-10 | 0 |
| 11-15 | 1 |
| 16-21 | 2 |
| 22-28 | 3 |
| 29-36 | 4 |
| 37-78 | 5 |
| 79-91 | 4 |
| 92-105 | 3 |
| 106+ | 2 |
Static bonfires are mainly used to convert ingredients into products. This is done by adding ingredients at a certain temperature. The amount of wood left in a bonfire can tell us exactly what the current temperature is, given that the initial bonfire size is known:
to calculate how much wood should used to build a light and forget bonfire use this formula(based on sum of counting numbers formula):
H= target peak heat, W= total wood , w= wood left, h= heat you want to add things to the fire
W = (H-1)*H/2 +1
if you want to add something at a certain heat and want to know how much wood is left in the fire at that heat.
for H!=h (not equal) w= W - (h+1)*h/2
for H==h w=0 and previous tick w=1
- Niseg
Table updated with higher wood = less cc values -- Ryzlar
Oscillating Method
Yields X charcoal from X+10 wood. For large X, this is very close to 1 wood per charcoal.
Step 1: Set up the bonfires, 11 wood in each, and pin the menus. Try with just 1 or 2 to begin with, as you get better you may be able to run 30 or so at once.
Step 2: Wait for the first fire to hit 0 wood. This should happen close to 40 seconds after lighting them. Add 1 wood to all fires. This can be done very quickly by using one hand to click "Add Wood" with the mouse, and the other hand to press "Enter" on the keyboard.
Step 3: Every 20 seconds, add 1 wood to each fire. You can repeat this as often as you like, for an extra 1 charcoal from each fire each time. When you run out of wood or get tired of it, just let the fires burn out and collect your charcoal.
A good timer tool to use is here: http://www.atitd.net/forum/attachment.php?attachmentid=324
Ouroboros has written a charcoal macro that gives a 5:4 yield using oscillation and burns 28 fires. Find it here: http://wiki.atitd.net/tale2/Charcmacro
Stoked bonfires
- 11 wood, at 0 add 4 -> 5cc (3wood/cc) Add the 4 wood one by one each time you hit 0, then let the bonfire burn out. Adding water to it will reduce yield.
Timed bonfires
This is one way to achieve an oscillating bonfire without using water and extra wood. Yields N charcoal from N+10 wood. For large N, this is very close to 1 wood per charcoal.
Step 1: Set up the timer. You only need to do this once, ever. Create a chat channel to a guildmate, or someone else who wants a timer :) Make sure timestamps are on with /ts Pin a harvest wood menu from a tree. Pick some wood, and type "00" in the chat tab. Refresh the menu by clicking on it. When it drops to 50 seconds to harvest more wood, type "10" into the chat tab. When it drops to 40 seconds, type "20", and so on. When the menu shows you can collect more wood, check the chat. You should have something looking like this:
01m Yourname: 00 00m Yourname: 10 00m Yourname: 20 00m Yourname: 30 00m Yourname: 40 00m Yourname: 50
You now have a timer reading in intervals of 10 Teppyseconds. It is currently reading 01 minutes 00 seconds. The person on the other end of the chat can close it if they like.
Otherwise just wait for beer brewing and iron pots to be available.
Step 2: Set up the bonfires, 11 wood in each, and pin the menus. Try with just 1 or 2 to begin with, as you get better you may be able to run 30 or so at once.
Step 3: Wait for the timer to tick over into a new 10 second interval. Remember which one it is (e.g. 30 sec). Light all the fires.
Step 4: Wait for the first fire to hit 0 wood. This should happen close to 40 teppyseconds after lighting them. Add 1 wood to all fires. This can be done very quickly by using one hand to click "Add Wood" with the mouse, and the other hand to press "Enter" on the keyboard.
Step 5: Every 20 teppyseconds, add 1 wood to each fire. You can repeat this as often as you like, for an extra 1 charcoal from each fire each time. When you run out of wood or get tired of it, just let the fires burn out and collect your charcoal.
Variation: Start with 2 wood and add 1 wood at 0 left, 4 times before starting the 20-second intervals. This is more wood-efficient, but requires much tighter timing when starting.
Kulaks very simple yet productive timed CC formula
1) Type /ts so time shows up in your window.
2) Make 2wood BF, fire it, then type "time" in main chat the next second.
3) When wood reaches 0 add 1wood ---> repeat that 3 times (3wood tottal) then wait untill you see "01 time" in the chatwindow.
4) Bonfire should be at 0 quickly add 1wood ---> repeat that 3 times (3wood tottal) same as before.
5) Wait untill "02 time" and repeat step 4, keep going as long as you want.
6) i got yields as good as 10cc out of 11wood and 220cc out of 280wood, so yield should be around 70%-99% if u do the 10sec count i guess u can get better yields but it takes up more time.
p.s. you can use multiple bonfires with this formula. -Kulak
Alternative method for oscillating bonfires
I'm now using this method for producing high wood:charcoal yields by using two bonfires to time each other.
1) Place two 4 wood bonfires and pin menus.
2) Light one bonfire. One wood will be consumed immediately. Keep clicking on its menu.
3) When more wood is consumed (3 wood to 1 wood left) light the second bonfire immediately. This should synchronise the bonfires to the same tick rate and timings, but with a one-tick delay between the two.
4) Bring both bonfires up to charcoal heat, by adding 1 wood to each four times (when they reach 0 wood) (When the fourth piece of wood has been added for the first bonfire the second bonfire should have had 3 wood added to it)
5) Do not add a piece of wood to the first bonfire for one tick. You can judge this time because it will be the same as the time for the second bonfire to consume its fourth piece of wood.
6) Now add a piece of wood to the first bonfire, and do not add to the second.
7) Repeat setps 5&6 until you get bored.
There will be variations on this method, you could start with 2 wood bonfires and bring them up to heat slightly more efficiently, or you could add two pieces and wait two ticks during the cycle.
Timing diagram
Ticks _ _ _ 1 2 3 4 5 6 7 8 9 etc
Bonfire A) 4 L B B H H 1 1 B 1 B 1 B 1 B 1
Bonfire B) 4 _ L B B H H 1 1 B 1 B 1 B 1 B
key
4 = add 4 wood
L = light
B = burns (don't touch)
H = add one wood to increase heat
1 = add one wood that will become charcoal
-Nhimdahl
To make a bonfire of temp x
Take an amount of wood equal to the temperature you require. i.e. X wood. Take one 2 wood bonfire and light it. Pin up the bonfire menu and click on it repeatedly. Clicking on it is required to make it update. When the wood in the bonfire hits 0 it will be at temp 2. Add 1 wood to the bonfire and wait for this to butn (bonfire now shows wood = 0) the bonfire is now at temp 3. Repeat the step of adding 1 wood and waiting till it burns before adding the next. The bonfire will hit temp x as the last wood is burned.
To test what burns at what temperature a resource burns at and what rate it burns
Make a bonfire of temp x where x is the temperature that you are testing. As you add the last piece of wood add a large quantity of the resource that you are testing for burn rate. Once the last wood has burned tear down the bonfire and see how much of the resource you added is left. That is the rate it burns at.
To test what burns at what temperature a resource burns to produce what at
let X = the top temperature you want to test Create a bonfire of temp X. As you add the last wood add the resource. You will need to add at least 1 x the rate at which the resource burns at i.e 8 carrots or 4 garlic. Let the bonfire burn down and see what you are left with. You must _not_ tear down the bonfire as it only produces the resource when it burns out.
Independent research and Tools
- Users/Niseg/Bonfire - Niseg's bonfire Analysis/Theories and excel bonfire simulator(updated with cc,all vegtables,limestone and fish).
- Roen Utilities Dev Roen's php class and virtual tests to confront real tests.
- CCBeep, A looping beeping timer, useful for timing bonfires, Cindel
