Class: Conjuration::Scene

Inherits:
Object
  • Object
show all
Includes:
Attributes
Defined in:
lib/conjuration/scene.rb

Overview

Keeps track of game objects and manages their updates, draws, mouse, and keyboard events.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Attributes

included, #inspect

Constructor Details

#initialize(window, options = {}) ⇒ Scene

Returns a new instance of Scene.



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# File 'lib/conjuration/scene.rb', line 10

def initialize(window, options = {})
  super

  @window = window
  @game_objects = []
  @asset_manager = AssetManager.new
end

Instance Attribute Details

#window ⇒ Object (readonly)

Returns the value of attribute window.



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# File 'lib/conjuration/scene.rb', line 8

def window
  @window
end

Instance Method Details

#add_object(game_object) ⇒ Object 



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# File 'lib/conjuration/scene.rb', line 18

def add_object(game_object)
  @game_objects << game_object
end

#button_down(context, key) ⇒ Object 



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# File 'lib/conjuration/scene.rb', line 40

def button_down(context, key)
  @game_objects.each { |game_object| game_object.mouse_down(self, key) }
end

#button_up(context, key) ⇒ Object 



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# File 'lib/conjuration/scene.rb', line 44

def button_up(context, key)
  @game_objects.each { |game_object| game_object.mouse_up(self, key) }
end

#draw(context) ⇒ Object 



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# File 'lib/conjuration/scene.rb', line 34

def draw(context)
  @background_image&.draw(0, 0, 0, context.width.to_f / @background_image.width,
                          context.height.to_f / @background_image.height)
  @game_objects.each { |game_object| game_object.draw(context, self) }
end

#set_background(asset_path) ⇒ Object 



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# File 'lib/conjuration/scene.rb', line 22

def set_background(asset_path)
  @background_image = AssetManager.load_image(asset_path)
end

#update(context) ⇒ Object

Abstract Methods



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# File 'lib/conjuration/scene.rb', line 30

def update(context)
  @game_objects.each { |game_object| game_object.mouse_position(context) }
end