BaselineBot

RobGreg.rb

require 'rrobots'

class RobGreg
  include Robot
  attr_reader :events

  def near_a_wall?
    x <= size || y <= size || x >= battlefield_width - size || y >= battlefield_height - size
  end

  def toward_center
    delta_x = battlefield_width.to_f/2 - x
    delta_y = battlefield_height.to_f/2 - y
    desired_heading = delta_x.zero? ? (delta_y > 0 ? 90 : 270) : Math.atan(delta_y / delta_x) * 180.0 / Math::PI

    delta_h = desired_heading - heading
    delta_h = 360 - delta_h if delta_h > 180
    delta_h
  end

  def evade
    accelerate(1)
    if near_a_wall?
      turn toward_center
    else
      turn rand(21)-10
    end
  end

  def tick(new_events)
    @events = new_events
    if time == 0
      @turn = 30
      @last_scanned = 0
      @enemy_heading_bounds = nil
    end

    gh = gun_heat

    say "H=%.3f"%gh
    puts events.inspect unless events.empty?

    @last_hit = time unless events['got_hit'].empty?

    evade

    if events['robot_scanned'].empty?
      if (time - @last_scanned) > 5
        @turn = 30
        @enemy_heading_bounds = nil
      elsif @enemy_heading_bounds
        @enemy_heading_bounds = [ radar_heading, radar_heading + @turn ]
      end
      turn_gun @turn
    else
      bullet = case events['robot_scanned'][0][0]
               when 0...300
                 3
               when 300...400
                 2
               when 400...500
                 1
               when 500...750
                 0.5
               else
                 0.4
               end
      fire bullet if gh.zero? && (@last_scanned - time) < 2

      @last_scanned = time

      @enemy_heading_bounds = [ radar_heading - @turn, radar_heading ]
      @turn = (- @turn / 2).to_i
      @turn *= 3 if @turn <= 1
    end
  end
end

robot3.rb

require 'rrobots'

class Robot3
  include Robot
  def tick events
    @rapid_fire = 0 if @rapid_fire.nil?
    @last_seen = 0 if @last_seen.nil?
    @turn_speed = 3 if @turn_speed.nil?

    if time - @last_seen > 200
      @turn_speed *= -1
      @last_seen = time
    end

    turn @turn_speed

    if( @rapid_fire > 0 )
      fire 0.84
      turn_gun -(@turn_speed / @turn_speed) *2
      @rapid_fire = @rapid_fire - 1
    else
      turn_gun @turn_speed * 1.25
    end

    if( !events['robot_scanned'].empty? )
      @turn_speed *= -1
      @last_seen = time
      @rapid_fire = 20
    end
    @last_hit = time unless events['got_hit'].empty?
    if @last_hit && time - @last_hit < 20
      accelerate(-1)
    else
      accelerate 1
    end
  end
end