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Contents
# A thing that is a pod can have attachments.
#
#
#
#
module Pod extend Trait
manual <<-MANUAL
Defines:
attach <class>, x_pos, y_pos
Example:
class Battleship
attach Cannon, 10, 20
MANUAL
def self.included target_class
target_class.extend IncludeMethods
target_class.holds_attachments
end
# TODO is_a Rack
#
# TODO Maybe
# is_a Rack.
# with(Cannon, 10, 10).
# with(Cannon, 20, 10)
#
module IncludeMethods
def holds_attachments
include InstanceMethods
alias_method_chain :move, :attachments
class_inheritable_accessor :prototype_attachments
extend ClassMethods
hook = lambda do
self.class.prototype_attachments.each do |type, x, y|
attach type.new(self.window), x, y
end
end
InitializerHooks.append self, &hook
end
end
module ClassMethods
# Example:
# class MotherShip
# is_a Pod
# attach Cannon, 10, 10
# attach Cannon, 20, 10
# attach Cannon, 30, 10
#
def attach type, x, y
self.prototype_attachments ||= []
self.prototype_attachments << [type, x, y]
end
end
module InstanceMethods
attr_accessor :attachments
#
#
def attach attachment, x, y
self.attachments ||= []
attachment.extend Attachable # This is where Ruby shines.
window.register attachment
# attachment.rotation = self.rotation
attachment.relative_position = CP::Vec2.new x, y
self.attachments << attachment
end
#
#
def detach attachment
self.attachments.delete attachment if self.attachments
end
#
#
def move_attachments
self.attachments.each do |attachment|
attachment.move_relative self
end
end
#
#
def move_with_attachments
move_attachments
move_without_attachments
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems