Dwarf Fortress Bug Tracker - Dwarf Fortress
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0001134Dwarf FortressDwarf Mode -- Environmentpublic2010-04-14 02:362014-07-10 11:42
lowminorhave not tried
0001134: Fires don't spread to trees/shrubs and don't do enough damage
If you start a fire, it will spread to nearby grass but NOT to shrubs. So, for instance, if you start a fire in a field of Longland grass near a hamlet, you'll get one square of happily burning Longland grass. The Longland grass in the surrounding squares will be unaffected for at least a very long time.

I had a dragon attack my fort. All my dwarves were inside, but it saw a pet and breathed at it. I don't think the pet got hurt (though it looked like it should have) but it set fire to my depot and log stockpile. The thing is, the resulting fire didn't burn any trees or shrubs, and most of the dwarves and animals simply ran through the flames without getting hurt. I think one dwarf died because of the fire (not certain, was looking for other posts on this here, and he bled to death). My crops survived both the breath and the resulting fire. Also, the fire didn't move up or down the z-axis.

PS Caught the dragon in a cage trap, so no other damage caused by it.
death, fire, Fixed in 0.40.01?, trees
related to 0000307new  No announcements for blistering/charring, and other fire-related problems 
related to 0004555new  Snow does not stop bushfires 
parent of 0004041new  Grass near magma does not ignite 
parent of 0003866new  Tree Blocking Lava 
has duplicate 0003639resolved Footkerchief Fires do not spread to vegetation 
has duplicate 0003757resolved Footkerchief Fire does not burn caravan 
related to 0000798new  Wooden door not destroyed by magma in same tile 
related to 0005871acknowledged Footkerchief Unflowing magma doesn't radiate heat to water/ice directly above/below it 
related to 0006611new  Fire itself does no damage. 
related to 0006643confirmed Footkerchief Lower tree trunks dont burn properly 
related to 0008170new  Magma men don't set trees on fire 
Not all the children of this issue are yet resolved or closed.
Issue History
2010-04-14 02:36DrawdeNew Issue
2010-07-07 15:46FootkerchiefRelationship addedchild of 0000307
2010-11-16 14:36Logical2uRelationship addedduplicate of 0003639
2010-11-16 14:50FootkerchiefRelationship replacedhas duplicate 0003639
2010-11-30 12:52FootkerchiefSummaryfire not burning => Fires don't spread to trees/shrubs and don't do enough damage
2010-11-30 12:53FootkerchiefRelationship addedhas duplicate 0003757
2010-11-30 12:53FootkerchiefRelationship replacedparent of 0003639
2010-11-30 12:54FootkerchiefRelationship replacedhas duplicate 0003639
2011-01-03 07:57Logical2uRelationship addedchild of 0003866
2011-01-03 09:15GzalziTag Attached: fire
2011-01-03 09:15GzalziTag Attached: trees
2011-01-03 09:16GzalziTag Attached: death
2011-01-03 09:19GzalziNote Added: 0014778
2011-01-03 21:13Hieronymous AlloyIssue Monitored: Hieronymous Alloy
2011-01-04 05:21Logical2uRelationship replacedparent of 0003866
2011-02-21 13:16FootkerchiefDescription Updatedbug_revision_view_page.php?rev_id=5811#r5811
2011-02-21 13:17FootkerchiefRelationship addedparent of 0004041
2011-02-21 13:39FootkerchiefRelationship deletedparent of 0003866
2011-02-21 13:39FootkerchiefRelationship replacedrelated to 0004041
2011-02-21 13:41FootkerchiefRelationship replacedrelated to 0000307
2011-02-21 13:42FootkerchiefRelationship addedparent of 0003866
2011-02-21 13:42FootkerchiefRelationship replacedparent of 0004041
2011-02-21 13:43FootkerchiefRelationship addedparent of 0001567
2011-04-01 13:11FootkerchiefRelationship addedrelated to 0000798
2012-05-14 10:17FootkerchiefRelationship addedrelated to 0005871
2013-06-30 22:19DwarfuTag Attached: Fixed in 0.34.12?
2013-06-30 22:20DwarfuNote Added: 0024045
2014-01-27 17:49FootkerchiefRelationship addedrelated to 0004555
2014-07-07 22:23FootkerchiefTag RenamedFixed in 0.34.12? => Fixed in 0.40.01?
2014-07-08 07:48FootkerchiefRelationship addedrelated to 0006611
2014-07-08 10:58FootkerchiefRelationship addedrelated to 0006643
2014-07-08 10:58FootkerchiefRelationship deletedparent of 0001567
2014-07-10 11:42ArmokGoBNote Added: 0025563
2014-08-27 06:29FootkerchiefRelationship addedrelated to 0008170

2011-01-03 09:19   
I can confirm part of this: I had a Mountain Titan that was a blob made of Magma (left a trail of fire). The fires spread around but did not burn tress or shrubs and did not move up or down the z-axis even though there were grassy slopes. Somehow it managed to fall into a murky pool (without being attacked), so I never was able to test fire damage.
2013-06-30 22:20   
Given the Future of the Fortress feedback, this will mostly likely be fixed in the next version:

http://www.bay12forums.com/smf/index.php?topic=100851.msg4364233#msg4364233 [^]

Quote from: CaptainArchmage

    With the new multi-tile trees, are we going to have proper forest fires now? Can you furnish us with any screenshots?

It's one of the remaining items to address for trees (so, very soon!). Long ago, the trees actually burned, and now as I understand it, they no longer burn. Screenshots may occur during testing. I'm not sure how much the game is going to be able to judge the heat of the flames and so on -- it could be that grass fires only spread up to leaves if the tree has leaves near the ground, and the trunks only burn down in the presence of magma/dragons/etc., or something, but I'm not quite sure how it'll work until I go over the old code and update and fix it.
2014-07-10 11:42   
Kind of fixed, but fire only spreads on trees. :/