NoAI Branch - An AI Framework

[svetovoi]

How can I get list of industries which accepts particular cargo?

You can check each industry with function like this one:

Code: Select all

function IsIndustryAcceptingParticularCargo(industry_id, cargo_id)
{
         local r = AIStation.GetCoverageRadius(AIStation.STATION_TRUCK_STOP);
         if(!AIIndustry.IsValidIndustry(industry_id))
                  return false;
         if(!AICargo.IsValidCargo(cargo_id))
                  return false;
         if(AITile.GetCargoAcceptance(AIIndustry.GetLocation(industry_id), cargo_id, 1, 1, r)>=8)
                  return true;
         return false;
}

And add to you own list if it returns true.
I think it's also possible to wtrite AIIndustryList valuator.

I think we need some more:

new AIEngine class with functions like this:
char * GetEngineName (EngineID engine_id)
cargo_id GetEngineCargo (EngineID engine_id)
uint32 GetEngineCapacity (EngineID engine_id)
uint32 GetEngineReliability (EngineID engine_id)
uint32 GetEngineMaxSpeed (EngineID engine_id)
bool IsValidEngine (EngineID engine_id)

I wrote some (Get Cargo, Capacity, Speed) but have some problems with SVN (my linux machine will never has internet access, unfortunately I do not know how to make SVN work without it ) and so can not provide patch with theese functions

[TrueBrain]

I think we need some more:

new AIEngine class with functions like this:
char * GetEngineName (EngineID engine_id)
cargo_id GetEngineCargo (EngineID engine_id)
uint32 GetEngineCapacity (EngineID engine_id)
uint32 GetEngineReliability (EngineID engine_id)
uint32 GetEngineMaxSpeed (EngineID engine_id)
bool IsValidEngine (EngineID engine_id)

add to AIIndustry class:
bool IsAcceptingCargo (IndustryID industru_id, CargoID cargo_id)

new valuator:
AIIndustryListAccept (CargoID cargo_id)

I believe they are all done now The only thing remaining is a List(valuator) for the AIEngine things. Have fun with it

[Edit]
The lists are done now too

[dynaxo]

@TrueLight:
Could you please update the doxygen documentation? It's a bit exhausting to examine the new functions from the sourcecode

[Kilinich]

I think we need some more:
Most of those functions are already handled via AIVehicle::FindBestVehicle. IsValidEngine is already in AIVehicle. Nevertheless, I see no problem in adding some more functions, and list-valuators, to allow easy finding the best engine.

bugs:
-----
AIIndustry.GetProdution() returns invalid data (production from 1st day of month i think).

need functions:
---------------
Current date !!!
Engine info - speed, capacity, reliability
Vehicle info - current speed, current state (loading/unloading, runing/stoped, broken)
Industries, that accept cargo (got workaround via AITile.GetCargoAcceptance)

[Kilinich]

How can I get list of industries which accepts particular cargo?

You can check each industry with function like this one:

Code: Select all

function IsIndustryAcceptingParticularCargo(industry_id, cargo_id)
{
         local r = AIStation.GetCoverageRadius(AIStation.STATION_TRUCK_STOP);
         if(!AIIndustry.IsValidIndustry(industry_id))
                  return false;
         if(!AICargo.IsValidCargo(cargo_id))
                  return false;
         if(AITile.GetCargoAcceptance(AIIndustry.GetLocation(industry_id), cargo_id, 1, 1, r)>=8)
                  return true;
         return false;
}

no need to use AIStation:

Code: Select all

      local list = AIIndustryList();
      for (local industry=list.Begin(); list.HasNext(); industry=list.Next()) {
        list.SetValue(industry,AITile.GetCargoAcceptance(Industries.GetLocation(industry),i,1,1,1));
      }
      list.KeepAboveValue(0);

but it return fake acceptance of mail/passangers if city is near

[TrueBrain]

need functions:
---------------
Current date !!!
Engine info - speed, capacity, reliability
Vehicle info - current speed, current state (loading/unloading, runing/stoped, broken)
Industries, that accept cargo (got workaround via AITile.GetCargoAcceptance)

You really should read-up with the whole topic before replying.............

Anyway:

Current-date: how is this ever useful?
Engine-info: done
Vehicle-info: how is this useful?
Industries: done

[Kilinich]

I believe they are all done now The only thing remaining is a List(valuator) for the AIEngine things. Have fun with it
The lists are done now too

Thanks, i'll continue to dig it.
Is r11289-noai win32 binary with that changes?

[TrueBrain]

I believe they are all done now The only thing remaining is a List(valuator) for the AIEngine things. Have fun with it
The lists are done now too

Thanks, i'll continue to dig it.
Is r11289-noai win32 binary with that changes?

Sadly enough, it isn't. Tonight at 18:00 (2 hours before the trunk nightly) there will be a new binary available, which does include the latest changes.

[Kilinich]

You really should read-up with the whole topic before replying.............

Sure, i have some problem with inet, so i post message with big lag, sorry.

Current-date: how is this ever useful?
Engine-info: done
Vehicle-info: how is this useful?
Industries: done

If i don't know current date - why i need any "profit this year" function - it's useless.
Plus i want some real-time events in my script like annual review etc.
Vehicle info like current speed/state and location need for locate traffic jam.

[TrueBrain]

If i don't know current date - why i need any "profit this year" function - it's useless.
Plus i want some real-time events in my script like annual review etc.
Vehicle info like current speed/state and location need for locate traffic jam.

Hmm, good point about the first one yes. About the annual review, it might be better to do it once in the N ticks. This simply because AIs can run on different speeds. One that is running faster should, in my opinion, check things sooner than one that is running more slow. And I will add the last one to the TODO list too. Tnx for the feedback

[Nickman]

Nice to see the NoAI branch alive again .
I havn't finished my AI because of lack of time but it sure was fun working with it .

Keep it up .

[svetovoi]

Maybe AICargo should contain cargo enumeration... I mean CT_PASSENGERS, CT_MAIL, ..., etc

[Rubidium]

What enumeration would tourists get, or potash, or clay, or ...? It's totally useless when used with NewGRFs.

[Kilinich]

Hmm, good point about the first one yes. About the annual review, it might be better to do it once in the N ticks. This simply because AIs can run on different speeds. One that is running faster should, in my opinion, check things sooner than one that is running more slow. And I will add the last one to the TODO list too. Tnx for the feedback

Nono, once it N ticks means nothing - i want to alalyse period of operation and get some statistic to dig. By game design statistic is annual and it's easy to use it.
Another way current_date may come handy - calculate route-average speed of vehicle (or time to travel between stations) and recalculate optimal count of trucks on route.

p.s. And it simply better for people - know what time it is =)

[Kilinich]

Did anyone here try to create road pathfinder based on wave algorithm?
It seems like best solution for TTD world.

[svetovoi]

It's totally useless

Well, maybe
I mean when building a road station, AI need to "know" it's type (bus or truck)
As I understand it can be "known" by to ways:

• 1.Always build one type of stations (not very interesting)
  2.Check what type of cargo it's going to transport

Not a big problem to use zero, but it's one more "magic number"
Also why not make NUM_CARGO accessible through AICargo? Very useful to organize loops.
About non passengers think you are right.

[Rubidium]

Ok, you've got no idea what I meant:
with NewGRFs you can define your own cargos/override the current cargos.

This means that I can override CT_PASSENGER to be potash and override CT_COAL to be passengers. Knowing that I said that the enum would be totally useless. I did not say that getting some information about the cargo would be useless. Adding a constant about the maximum number of loadable cargos is probably usefull. Then you can just use the current API to get information about the cargo; it has a function which tells you whether it's freight or not and you can get it's so-called cargo-label, which should be a unique 4-letter name for each cargo.

[svetovoi]

Understand now. Thank you for explaining.

[Leviath.NL]

I just had an funny idea, is it possible to make an AI that slowly connects all the towns of the map to each other? It does not build any vehicles and shouldn't be seen as an competitor.

[dynaxo]

If I remember right someone developed a pathfinder for road vehicles. This could be used to plan the path between two cities. Also I programmed a squirrel class that calculates a maximum Hamilton Circle. It would be easy to change it to calculate a minimum circle.
The only problem would be that the AI wouldn't have any income.
Of course you could cheat but at the moment you cannot automate this.