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slogic
PostPosted: 14 Dec 2010, 11:30 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
Current algo is:
Code:
      if (weapon->def->tracks && !weapon->def->waterweapon
      && !weapon->def->stockpile && !weapon->def->canAttackGround)
         return true;


But flak weapons are skipped. I have no access to "toairweapon" tag of weapons.tdf file.

I was thinking about checking ballistic=1 & turret=1 but this is wrong.

Note that i won't parse text resources.
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slogic
PostPosted: 14 Dec 2010, 12:29 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
Hm, i noticed all fbi files of anti-air units in BA have tags like these:
Code:
  sightDistance=475;
  airSightDistance=900;

So, air sight distance of all anti-air units is 1.5x-2.x higher than usual sight distance. Can be used as additional trigger but also may give false positives.
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Forboding Angel
PostPosted: 14 Dec 2010, 13:22 
Evolution RTS Developer
User avatar

Joined: 17 Nov 2005, 02:43
Location: Raegquitting Spring on 04/24/12
Dunno if you can do it this way, but you could check the target categories of the weapons for "VTOL". *Shrug*
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slogic
PostPosted: 14 Dec 2010, 13:56 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
No, i can't: viewtopic.php?f=15&t=22988

I just profiled (ud->airLosRadius / ud->losRadius) expression for all registered anti-air units and always get values < 1.0. Very strange. Looks like they are expressed in different items.

EDIT
From some lua widget:
Code:
   unit->realLosRadius=(int) (ud->losRadius/(SQUARE_SIZE*2));
   unit->realAirLosRadius=(int) (ud->airLosRadius/(SQUARE_SIZE*4));


EDIT2
Actually more complicated :/
Code:
   losRadius = udTable.GetFloat("sightDistance", 0.0f) * modInfo.losMul / (SQUARE_SIZE * (1 << modInfo.losMipLevel));
   airLosRadius = udTable.GetFloat("airSightDistance", -1.0f);
   if (airLosRadius == -1.0f) {
      airLosRadius = udTable.GetFloat("sightDistance", 0.0f) * modInfo.airLosMul * 1.5f / (SQUARE_SIZE * (1 << modInfo.airMipLevel));
   } else {
      airLosRadius = airLosRadius * modInfo.airLosMul / (SQUARE_SIZE * (1 << modInfo.airMipLevel));
   }
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slogic
PostPosted: 14 Dec 2010, 15:35 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
Based on my tests (SQUARE_SIZE * (1 << modInfo.losMipLevel) / modInfo.losMul) = 32. I don't understand where modInfo.losMul & modInfo.losMipLevel are set by game developer? Or are they constants really?
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Kloot
PostPosted: 14 Dec 2010, 15:40 
Spring Developer

Joined: 08 Oct 2006, 15:58
modInfo(.lua) | modRules(.tdf)
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slogic
PostPosted: 14 Dec 2010, 15:54 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
Thanx. Found at mod rules. Also found an outdated information that is was in sensors.tdf files long ago.

Well, i think i'm in a deadlock again like with Spring category tags because modInfo is not accessible via Legacy C++ API.

I see no way to 100% detect anti-air units.
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SpliFF
PostPosted: 15 Dec 2010, 00:57 
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Joined: 28 Jul 2008, 05:51
Location: Australia
If you have have any persistence in your AI data you could train that stat by counting total air kills for each unitdef. Then pick a reasonable minimum threshold that avoids those occasional cases where a plane got caught on the ground.
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slogic
PostPosted: 22 Dec 2010, 12:15 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
Training is bad for constantly modifying games.

Created mantis request #2264.
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Rafal99
PostPosted: 23 Dec 2010, 15:38 
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Joined: 14 Jan 2006, 04:09
In my ancient AI code I was detecting AA weapons using weaponDef->onlyTargetCategory.
It was before AI interface rewrite so no idea how the exact code would look like now.
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slogic
PostPosted: 23 Dec 2010, 17:30 
AI Coder

Joined: 17 Mar 2008, 19:03
Location: RF
I wanna use it too but it is of integer type (not string) & contains flags to which i have no access: they are not static.
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