require 'logger'
require 'rubygems'
require 'ruby-prof'
require 'zyps'
require 'zyps/actions'
require 'zyps/conditions'
require 'zyps/environmental_factors'
include Zyps
LOOP_COUNT = 500
def main
environment = Environment.new
environment << Enclosure.new(
:left => 0,
:bottom => 0,
:top => 600,
:right => 400
)
environment << SpeedLimit.new(100)
environment << PopulationLimit.new(50)
generator = CreatureGenerator.new(:environment => environment)
prototype_creature = generator.create_creature(
:turn => true,
:approach => true,
:flee => true,
:push => true,
:pull => true,
:breed => true,
:eat => true
)
populate(environment, prototype_creature)
Utility.caching_enabled = true
LOOP_COUNT.times do
environment.interact
Utility.clear_caches
GC.start
end
end
def populate(environment, creature, count = 50)
count.times do |i|
copy = creature.copy
copy.location = Location.new(i, i)
copy.vector = Vector.new(i, i)
environment << creature
end
end
#Creates Creature objects.
class CreatureGenerator
#Environment creatures will be placed in.
attr_accessor :environment
#Default size of new creatures.
attr_accessor :default_size
#Default required proximity for actions.
attr_accessor :default_proximity
#Rate of new TurnActions.
attr_accessor :turn_rate
#Acceleration rate of new ApproachActions.
attr_accessor :approach_rate
#Acceleration rate of new FleeActions.
attr_accessor :flee_rate
#Strength of new PullActions.
attr_accessor :pull_strength
#Strength of new PushActions.
attr_accessor :push_strength
#Takes a hash with these keys and defaults:
# :default_size => 5
# :default_proximity => 200
# :approach_rate => 200
# :flee_rate => :approach_rate
# :push_strength => :approach_rate * 2
# :pull_strength => :push_strength * 0.75
# :turn_rate => :approach_rate * 1.1
# :turn_angle => 90
# :breed_rate => 10
def initialize(options = {})
options = {
:default_size => 5,
:default_proximity => 200,
:approach_rate => 200,
:turn_angle => 90,
:breed_rate => 10,
}.merge(options)
@default_size = options[:default_size]
@default_proximity = options[:default_proximity]
@approach_rate = options[:approach_rate]
@turn_angle = options[:turn_angle]
@breed_rate = options[:breed_rate]
@flee_rate = options[:flee_rate] || @approach_rate * 2
@push_strength = options [:push_strength] || @approach_rate * 2
@pull_strength = options[:pull_strength] || @push_strength * 0.75
@turn_rate = options[:turn_rate] || @approach_rate * 1.1
end
#Create a creature with the given attributes and behaviors.
#Takes a hash with these keys and defaults:
# :x => 0,
# :y => 0,
# :speed => 1,
# :pitch => 0,
# :size => @default_size,
# :action_proximity => @default_proximity,
# :turn => false,
# :approach => false,
# :flee => false,
# :push => false,
# :pull => false,
# :breed => false,
# :eat => false,
def create_creature(options = {})
options = {
:x => 0,
:y => 0,
:speed => 1,
:pitch => 0,
:size => @default_size,
:action_proximity => @default_proximity,
:turn => false,
:approach => false,
:flee => false,
:push => false,
:pull => false,
:breed => false,
:eat => false,
}.merge(options)
#Create a creature.
creature = Creature.new(
:location => Location.new(options[:x], options[:y]),
:vector => Vector.new(options[:speed], options[:pitch]),
:size => options[:size]
)
#Set up actions and merge colors according to selected behaviors.
color = Color.new(0.5, 0.5, 0.5)
if options[:turn]
color.blue += 1
creature << Behavior.new(
:actions => [TurnAction.new(@turn_rate, @turn_angle)],
:conditions => [ProximityCondition.new(options[:action_proximity] * 2)]
)
end
if options[:approach]
color.red += 1
creature << Behavior.new(
:actions => [ApproachAction.new(@approach_rate)],
:conditions => [ProximityCondition.new(options[:action_proximity])]
)
end
if options[:flee]
color.red += 0.5; color.green += 0.5 #Yellow.
creature << Behavior.new(
:actions => [FleeAction.new(@flee_rate)],
:conditions => [ProximityCondition.new(options[:action_proximity] * 0.5)]
)
end
if options[:push]
color.red += 0.5; color.blue += 0.5 #Purple.
creature << Behavior.new(
:actions => [PushAction.new(@push_strength)],
:conditions => [ProximityCondition.new(options[:action_proximity] * 0.25)]
)
end
if options[:pull]
color.blue += 0.75; color.green += 0.75 #Aqua.
creature << Behavior.new(
:actions => [PullAction.new(@pull_strength)],
:conditions => [ProximityCondition.new(options[:action_proximity] * 0.75)]
)
end
if options[:breed]
color.green -= 0.1 #Make a bit redder.
color.blue -= 0.1
creature << Behavior.new(
:actions => [BreedAction.new],
:conditions => [
CollisionCondition.new, #The default ProximityCondition won't do.
InactiveLongerThanCondition.new(@breed_rate) #Avoids instant population explosion.
]
)
end
if options[:eat]
color.green += 1
creature << Behavior.new(
:actions => [EatAction.new],
:conditions => [
CollisionCondition.new, #The default ProximityCondition won't do.
StrengthCondition.new #The eater should be as strong or stronger than its dinner.
]
)
end
creature.color = color
creature
end
end
main
