Module: AdventureRL::Modifiers::Pusher

Defined in:
lib/AdventureRL/Modifiers/Pusher.rb

Overview

A Modifiers::Pusher is a Modifers::Solid Mask, which has the ability to __push other solid Masks__ (that are _not static_) out of the way when moving with #move_by.

Instance Method Summary collapse

Instance Method Details

#move_by(*args) ⇒ Object

Overwrite Modifiers::Solid#move_by to add the :pushed_by_pusher option. This skips pushing the Pusher that pushed this Pusher, to avoid an endless pushing of Pushers, where one Pusher pushes the other Pusher before that Pusher pushes the first Pusher, …



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# File 'lib/AdventureRL/Modifiers/Pusher.rb', line 14

def move_by *args
  return  if (is_static?)

  if (args.last.is_a?(Hash))
    @pushed_by_pusher = [args.last[:pushed_by_pusher], self].flatten.reject { |x| !x }
  else
    @pushed_by_pusher = [self]
  end
  super
  @pushed_by_pusher = false
end