Method: FelFlame::Entities#component

Defined in:
lib/felflame/entity_manager.rb

#component(manager = nil) ⇒ Component

A single component from a component manager. Use this if you expect the component to only belong to one entity and you want to access it. Access the component using either parameter notation or array notation. Array notation is conventional for better readablility.

Examples:

@entity.component[@component_manager] # array notation(the standard)
@entity.component(@component_manager) # method notation

Parameters:

  • manager (ComponentManager) (defaults to: nil) —

    If you pass nil you can then use array notation to access the same value.

Returns:

  • (Component) 


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# File 'lib/felflame/entity_manager.rb', line 26

def component(manager = nil)
  if manager.nil?
    FelFlame::Entities.component_redirect.entity = self
    FelFlame::Entities.component_redirect
  else
    if components[manager].nil?
      raise "This entity(#{self}) doesnt have any components of this type: #{manager}"
    elsif components[manager].length > 1
      Warning.warn("This entity has MANY of this component but you called the method that is intended for having a single of this component type.\nYou may have a bug in your logic.")
    end

    components[manager].first
  end
end