Module: Rubygame::Sprites::BoundedGroup

Defined in:
lib/xgame.rb

Overview

This is a mixin module for groups that keep their sprites in a particular region of the screen

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#bounds ⇒ Object

Bounding box (of type Rubygame::Rect)



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# File 'lib/xgame.rb', line 169

def bounds
  @bounds
end

Instance Method Details

#update(*args) ⇒ Object 



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# File 'lib/xgame.rb', line 174

def update(*args)
  super(*args)
  self.each { |sprite|
    if sprite.rect.top < bounds.top
      sprite.rect.top = bounds.top
      sprite.stop(:up) if sprite.respond_to?(:stop)
    end
    if sprite.rect.bottom > bounds.bottom
      sprite.rect.bottom = bounds.bottom
      sprite.stop(:down) if sprite.respond_to?(:stop)
    end
    if sprite.rect.left < bounds.left
      sprite.rect.left = bounds.left
      sprite.stop(:left) if sprite.respond_to?(:stop)
    end
    if sprite.rect.right > bounds.right
      sprite.rect.right = bounds.right
      sprite.stop(:right) if sprite.respond_to?(:stop)
    end 
  }
end