Attacked Events

In Zero X some events are directly reported to the agents. They can read them, during their think method with next_event or iterate over them with each_event. The event will be removed as soon as it has been read.

event = next_event
event.class    # => AttackedEvent
event.attacker # => '003' agent code name
event.damage   # => 132

If an agent is attacked by another agent, the victim receives an attacked event. The event includes the code name of the attacker and the damage suffered.

Here an example with an iterator:

each_event do |event|
  if event.instance_of? AttackedEvent
    puts "attacked by #{event.attacker} and suffered #{event.damage}"
  end
end

In your tests you can fire the attacked event by using has_been_attacked_by. The method takes the codename of the attacker and an optional damage parameter.

it "should behave different if it has been attacked" do
  @agent.has_been_attacked_by '003'
  @agent.think
  ...
end

The new test methods are available with SDK Version 0.9.7.
Download the new SDK V0.9.7

See the documentation.

Bulldog wins 9th tournament

Bulldog won the 9th tournament with 8.0 points. He won 2 games, made one second place and a third place.
Wood Elf, the high flyer of the last tournament, made this time only 4.6 points and was placed at rank 6, still holding the first rank in the total ranking.
Newcomer Mild Gruyere won 1 game and is placed 4th in the tournament ranking.

I'm still experimenting with the runtime velocity of the simulation. This time the simulation run even slower, the action cost to time unit ratio was 1/15. Like this the resource reached their maximum at the end of each game. I think will keep the action costs in this range for the next tournament.

class Agency < Tournament::Agency
  level 'Greenfields'
  agents_per_game 22
  games_per_agent 1
  game_duration 300 # sec
  time_unit 45 # sec
  action_cost_time_unit_ratio 1.0 / 15.0
  build_options 'Greenfields::World' => { :size => 8 },
                'Greenfields::Resource' => { :size => 4000..16000 },
                'Greenfields::Population' => { :size => 40..160 }
end

Ranking of the 9th tournament.

High-Flyer

Incredible! Wood Elf makes the perfect tournament with 10 points! This means she won all 5 games in the tournament. Having a look at the rankings of Wood Elf, we see that, in the 4 tournaments she participated, she won 3 of them and made a second place in the other. This is clear an outstanding performance.
She now leads the overall ranking with 7.85 points, leaving the second placed Gruyere with 5.69 points behind.

The world size for this tournament has now been increased by one to eight. And the simulation run even slower, one time unit now took 30 seconds.
Here the whole configuration for the last tournament:

module Greenfields

  class Agency < Tournament::Agency
    level 'Greenfields'
    agents_per_game 22
    games_per_agent 5
    game_duration 1800 # sec
    time_unit 30 # sec
    action_cost_time_unit_ratio 1.0 / 10.0
    build_options 'Greenfields::World' => { :size => 8 },
                  'Greenfields::Resource' => { :size => 4000..16000 },
                  'Greenfields::Population' => { :size => 40..160 }
  end

end

Ranking of the 8th tournament.