Class: Chingu::GameObjectList

Inherits:
Object
  • Object
show all
Defined in:
lib/chingu/game_object_list.rb

Overview

Manages a list of game objects An instance of GameObjectList is automaticly created as “game_objects” if using Chingu::Window

Instance Method Summary collapse

Constructor Details

#initialize ⇒ GameObjectList

Returns a new instance of GameObjectList.



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# File 'lib/chingu/game_object_list.rb', line 30

def initialize
  @game_objects = Array.new
  #@game_objects_by_class = Hash.new
end

Instance Method Details

#add_game_object(object) ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 51

def add_game_object(object)
  @game_objects.push(object)
  #(@game_objects_by_class[object.class] ||= []).push(object)
end

#destroy_all ⇒ Object Also known as: clear, remove_all 



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# File 'lib/chingu/game_object_list.rb', line 44

def destroy_all
  @game_objects.clear
  #@game_objects_of_class.clear
end

#destroy_if ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 61

def destroy_if
  @game_objects.reject! { |object| yield(object) }
  #@game_objects_by_class.delete_if { |klass, object| yield(object) }
end

#draw ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 70

def draw
  @game_objects.each{ |object| object.visible }.each do |object| 
    object.draw_trait
    object.draw
  end
end

#each ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 84

def each
  @game_objects.each { |object| yield object }
end

#hide! ⇒ Object

Disable automatic calling of draw and draw_trait each game loop for all game objects



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# File 'lib/chingu/game_object_list.rb', line 109

def hide!
  @game_objects.each { |object| object.hide! }
end

#of_class(klass) ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 39

def of_class(klass)
  @game_objects.select { |game_object| game_object.is_a? klass }
  #@game_objects_by_class[klass] || []
end

#pause! ⇒ Object

Disable automatic calling of update() and update_trait() each game loop for all game objects



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# File 'lib/chingu/game_object_list.rb', line 95

def pause!
  @game_objects.each { |object| object.pause! }
end

#remove_game_object(object) ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 56

def remove_game_object(object)
  @game_objects.delete(object)
  #@game_objects_by_class[object.class].delete(object)
end

#select ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 88

def select
  @game_objects.select { |object| yield object }
end

#show! ⇒ Object

Enable automatic calling of draw and draw_trait each game loop for all game objects



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# File 'lib/chingu/game_object_list.rb', line 116

def show!
  @game_objects.each { |object| object.show! }
end

#size ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 66

def size
  @game_objects.size
end

#to_s ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 35

def to_s
  "#{@game_objects.size} game objects."
end

#unpause! ⇒ Object

Enable automatic calling of update() and update_trait() each game loop for all game objects



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# File 'lib/chingu/game_object_list.rb', line 102

def unpause!
  @game_objects.each { |object| object.unpause! }
end

#update ⇒ Object 



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# File 'lib/chingu/game_object_list.rb', line 77

def update
  @game_objects.select{ |object| not object.paused }.each do |object| 
    object.update_trait 
    object.update
  end
end