Which AIs are now actively maintained?

Discuss the new AI features ("NoAI") introduced into OpenTTD 0.7, allowing you to implement custom AIs, and the new Game Scripts available in OpenTTD 1.2 and higher.

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RockyPapery
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Re: Which AIs are now actively maintained?

Post by RockyPapery »

I tested 8 AIs:
Map: Temperate 1024x2048
Start Date: 1st Jan 1930
Total Duration: 67 ingame years

Inflation: on
Loan Interest: 4x
Recession: on
Maintenance: on
Running Cost: High
Construction Cost: Medium
Proportion of towns that will become cities: none
Industry density: minimal
Town controlled noise for airport: on
Town council's attitude: Tolerant
Enable smooth economy: off

Max Vehicle: 2500
Max Aircraft: 1000
Max Train: 1000
Max Ship: 1000

[--- No Crash At all ---]
- CluelessAI
- KrakenAI
- SimpleAI
- LuDiAI AfterFix
- NoNoCab
- RailwAI
- TransAI
- WormAI

[Additional Notes]
- LuDiAI AfterFix = dominates the entire game and the only company who builds aircraft without getting bankrupt.
- KrakenAI = Struggles the entire game, barely making any profits despite I gave him $60.000.000 money cheat.
- SimpleAI = Starts out decent. Builds aircraft in the middle of the game, makes profits. Recession happens, then bankrupted.
- NoNoCab = Starts out fantastic. Then goes stagnant in the middle til end of the game.
- RailwAI = Starts out decent. Then it just declines and bankrupted in the end of the game.
- TransAI = Starts unnoticeable. Then get skyrocketed passing LuDiAI in the middle of the game. Then goes stagnant in the end of the game.
- WormAI = The most profitable company early - mid game. Then goes stagnant til the end of the game. For some reason WormAI refuses to build aircrafts.
- CluelessAI = A decent AI trying to survive. Has decent profit but still worse than WormAI.
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RailwAI
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Re: Which AIs are now actively maintained?

Post by RailwAI »

odisseus wrote:
09 Apr 2020 03:25
If you need a rock stable AI, the best thing you can do is pick one of those that are still maintained, and report every crash you experience. Hopefully, the maintainer would find the time to fix the problems you find.
I have a question to the openTTD and BaNaNaS management:
Most bugs that lead to AI Crashes are rather easy to fix, and I am willing to spend some time for that. Is there a possibility for you to upload a new version to BaNaNaS of an unmaintained AI if I apply a small patch to it?

Wormnest
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Re: Which AIs are now actively maintained?

Post by Wormnest »

RailwAI wrote:
13 Apr 2020 06:54
I have a question to the openTTD and BaNaNaS management:
Most bugs that lead to AI Crashes are rather easy to fix, and I am willing to spend some time for that. Is there a possibility for you to upload a new version to BaNaNaS of an unmaintained AI if I apply a small patch to it?
Not speaking for the OpenTTD team but as an AI author. This question has come up before and I think the usual answer was to contact the AI author if he wants to transfer ownership or to fork the AI (which I did for NoCAB) if the license permits that.

An idea I had was make an OpenTTD-AI organization on github and then add several AI developers that are willing and able to fix AI's that are not maintained anymore. These AI's could get a repository there. Then release a new version with a new name with OpenTTD-AI as author(s). That way if one AI developer loses interest another member of that team can take over.

Possibly AI developers that loose interest could even sign over their AI to this team, that way it would not even need to have a new name.

P.S. Not sure exactly in how far signing over ownership is possible or easy to do but I know it was mentioned in the past.

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RailwAI
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Re: Which AIs are now actively maintained?

Post by RailwAI »

RockyPapery wrote:
09 Apr 2020 16:12
[Additional Notes]
- RailwAI = Starts out decent. Then it just declines and bankrupted in the end of the game.
Do you maybe have a savegame from before it went bankrupt? I now can only make a poor guess why its financial situations might have gone downhill, but I cannot verify anything.

RockyPapery
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Re: Which AIs are now actively maintained?

Post by RockyPapery »

RailwAI wrote:
16 Apr 2020 10:12
RockyPapery wrote:
09 Apr 2020 16:12
[Additional Notes]
- RailwAI = Starts out decent. Then it just declines and bankrupted in the end of the game.
Do you maybe have a savegame from before it went bankrupt? I now can only make a poor guess why its financial situations might have gone downhill, but I cannot verify anything.
Unfortunately, I don't. However, I kept an eye of each company, even the AI Debug screen and I exactly remembered the cause of the bankruptcy. Both railwAI (yours) and TransAI had a same problem on the train infrastructure. For some reason their trains were getting jammed (pesky signal), causing a massive loss and then goes in debt.

Notice that 4 trains stuck inside the depot while 2 other trains were waiting for free path.
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RailwAI
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Re: Which AIs are now actively maintained?

Post by RailwAI »

A few trains stuck in a depot may never be a reason for going bankrupt :lol:

RockyPapery
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Re: Which AIs are now actively maintained?

Post by RockyPapery »

RailwAI wrote:
18 Apr 2020 09:29
A few trains stuck in a depot may never be a reason for going bankrupt :lol:
I can assure the entire train get stuck on that track, rendering those 2 stations useless. It did bankrupt because those 2 were the major income for its company. I will post more detail on your AI forum since this is not a correct place to discuss.

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