lib/rules/limit.rb


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# frozen_string_literal: true

# This special function is already called by apply_boid_calculations.rb
# do not add or call this function elsewhere
FF::Sys.new('Limit') do
  unless $config.limit.negative?
    FF::Cmp::Boids.each do |boid|
      multi = if boid.entities[0].components[FF::Cmp::Piranha].nil?
                1.0
              else
                0.3
              end

      absolute_velocity = Math.sqrt((boid.vx**2) + (boid.vy**2))
      if absolute_velocity > ($config.limit * multi)
        boid.vx = (boid.vx / absolute_velocity) * $config.limit * multi
        boid.vy = (boid.vy / absolute_velocity) * $config.limit * multi
      end
    end
  end
end