Talk:Buildings

Untitled 1
The tower information should make clear the differing bounties between when allied creeps kill a tower, when an allied hero destroys the tower, when you destroy the tower, and when it is denied.

Decency 00:51, 10 March 2012 (UTC)
 * You can do that :D Redefining history 00:55, 10 March 2012 (UTC)

tower attack speed
How fast do the towers attack, what's their attack speed number? Should be noted down on this page somewhere.


 * Look at the table. It says how fast they attack. BAT stands for base attack time. Tier 1 towers attack once per second, all other towers attack once per 0.95 seconds. Bu3ny (talk) 01:01, 30 January 2015 (UTC)

wrong information tower bounty
the information of bounty tower are wrong

descending not ascending order
The list of things a tower hits is is order of *descending* not ascending priority -- the highest priority is #1, the next is #2, and so on. (Also, why allow anon editing if they get auto-blocked? It's wasting people's time.)

Tower attack priority
Heroes are prioritised above catapults. I can't change this because of nonsensical anon edits. Someone else please get on that shit.

Tower Regen
Something not mentioned in the wiki is that should an enemy hero attempt to take a tower on without any creeps, the tower will have a massive healing factor that makes it much harder for heroes to solo even with armor reducing items and abilities. Horsemen1337 (talk) 15:37, 25 May 2014 (UTC)
 * It's mentioned under the Backdoor Protection section. - LingoSalad (talk) 16:08, 25 May 2014 (UTC)

Special (triggered) aggro on hero attack
So I've made a few edits anonymously, since I somehow lost my password for this site. The only edit I think looks very much out of place explains the special aggro acquired when you attack an enemy hero. This is not part of WC3 AI, and instead is triggered in DotA 1. The rule is that whenever a player unit attacks an enemy hero (even automatically) or whenever a player issues an attack order for a unit against an enemy hero (even if the attack is not completed), all enemy computer-controlled units (Sentinel/Radiant or Scourge/Dire) in a 700 AoE, including towers, will be ordered to attack that aggressor. Upon triggering this function, a 2 second cooldown is initiated during which that same player cannot trigger it again, even on the other side of the map.

This is a very important rule, but it is difficult to explain in a way that is sufficiently exact but also readable. It's also hard for me to decide where to put the information in the article. Help is appreciated.

- Eebster the Great

Backdoor Protection
Can someone explain the rules of Backdoor Protection in Dota 2 more precisely? Also, a picture of the AoE on the minimap would be nice. See these references from DotA 1: http://www.playdota.com/forums/showthread.php?p=1021321#post1021321#5 (explanation from BBQ) and http://www.playdota.com/forums/attachment.php?attachmentid=23936 (a picture from the DotA 1 minimap). Psion1C (talk) 00:29, 10 February 2016 (UTC)
 * I could do it on my own, but the problem is that I neither know the exact mechanics in Dota 2 nor how to look it up from the game data. Psion1C (talk) 14:58, 11 February 2016 (UTC)

Npc name
hmm. It's not working when there is no unit infobox --Elite stay (talk) 16:31, 11 March 2016 (UTC)


 * Indeed, this is intended :) Please keep in mind that the template is still work in progress and might get renamed/changed/deleted at any point. Molldust (talk) 17:04, 11 March 2016 (UTC)

Abilities that Affect Buildings
After Spring Cleanning, it seems to be remaked. --Elite stay (talk) 08:30, 26 March 2016 (UTC)

Filler building
On 7.00, it called Effigy building. Should we change? --Elite stay (talk) 22:27, 11 December 2016 (UTC)

Backdoor Protection
The text currently says: "Backdoor protection is not responsible for the invulnerability [buildings] have, so the [buildings] still stay invulnerable if their corresponding towers are not destroyed first." --> Should this say [barracks] instead?


 * Towers, Ancient and Shrines are also invulnerable until certain towers are destroyed. -- Litzsch 22:27, 27 April 2018 (UTC)

Unit distances in Dota2. Backdoor protection in this wiki says 900. I think closer to 750.  Other tower distance issues too.
Using "Passive" bots and testing a lot in Dota2, I think I have found some discrepancies in some descriptions in this Wiki. I'd like to make several corrections, but I think I need to explain why I'm making those changes, and to ask others to see where I might be wrong.

From Dota2 the doc describes using the ALT key to display a tower's "Attack Range" showing a red circle around the tower. When selecting a tower and looking at the popup in game, it has "Attack Range: 700". This Wiki documents Attack Range as 700. So far so good.

Q: What does it mean to be within 700 units of a tower?

A: When selecting a Hero there is a circle shown for its base. Part of this base circle can be over the red attack circle and the Hero is not considered to be in attack range. It is only when the center of the hero is within the red circle that an attack will start. For example, if you right click to move into the red circle, and you are the only enemy in attack range, the tower will start to attack. If you click just outside the circle, no attack occurs.

I've used the 4000 x 4000 map from this Wiki and tried to recreate the "red circle" around towers. Assuming this is 700 units from the tower, I've also created a "yellow circle" which is 900 units (based on my earlier approximation for 700 units). I've also approximated that a Hero's base circle is about 100 units and draw it as a "blue circle". See the attached picture.

Q: When does a tower give Tower Protection (Aura buff to allied Heroes)? A: When a Hero's base circle is just outside the red circle, BUT WITHIN 800 UNITS OF THE TOWER, it is NOT activated. As soon as the Hero's circle is within the red circle the Aura buff is applied to the Hero.

This Wiki says the Tower Protection Radius is 900. This seems to be clearly wrong to me. If we use the same idea as "within Attack Range", then I'd say the Tower Protection Radius is 750.

Q: When does Backdoor Protection drop?

A: This Wiki says the radius is 900, but after a LOT of testing, especially around the Dire Top Tier 2 tower, I'd estimate it at 750 similar to the other observations and using the tower's red circle as a reference. The Dire Top Tier 2 is useful because there are obvious markings just outside the 700 range on the path that can be used as reference points for 700, 800 and 900 distances. For example, I've seen Radiant creeps thrusting their swords several times across the red line for several seconds and the backdoor protection is still in force until they move closer. The creeps were clearly within 800 units of the tower for several seconds without canceling the backdoor protection (and it was daytime and I had Hero vision of the tower).

I will try to attach 2 pictures to show what I am talking about.

Changes I'd like to make: 1. Change Tower Protection Radius to 750 (from 900) 2. Change Backdoor Protection Radius to 750 (from 900) 3. Update the Backdoor protection picture using 750 for the tower radii.

I've searched the internet for good descriptions for distance "units" in Dota2, but they are confusing. This wiki says, "About 15000 x 15000" are the map's unit size. I've also seen 14144 x 15872. I also realize that pixels don't always follow a square coordinate pattern.

Tommy1TW (talk) 02:39, 14 April 2019 (UTC)


 * The radii are tested by precise positioning of units done with the console. The tower protection and backdoor protection radii are both exactly 900.
 * Targeted actions have a different range than non-targeted actions. Every targeted action considers the ordered unit's and the targeted unit's collision sizes. So a tower (which has a collision size of 144) with a 700 attack range can attack units up to 844 range away at the minimum (868 range against most heroes, since most have a collision size of 24). The green/red circles around towers show this effective range of 844.
 * Area effects like auras do not consider a source of origin, but do consider the collision size of the units they effect. So most heroes are affected by the tower protection aura when within 924 range of the tower.
 *  Bu3ny  (talk) 09:08, 14 April 2019 (UTC)


 * Thank you very much!


 * My first reaction was: Wow! Nothing is simple with DOTA 2!


 * Is there anywhere in this Wiki that contains enough information so that I could have figured this out on my own without making so many false assumptions? Or is the information possibly somewhere else?


 * When examining what "range of 700" means, I did look up collision sizes at one point in my exploration, but there is no way I could have realized what is really happening. Your explanation goes a long way to my understanding "unit" distances in DOTA 2.


 * Thanks again!

Tommy1TW (talk) 10:14, 14 April 2019 (UTC)


 * The way distances work is not documented anywhere on the wiki as far as I know. And next time, please use image hosting websites for example images like that. Don't upload them on the wiki.  Bu3ny  (talk) 11:15, 14 April 2019 (UTC)