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class FelFlame
class Scenes
# The Constant name assigned to this Scene
attr_reader :const_name
# Allows overwriting the storage of systems, such as for clearing.
# This method should generally only need to be used internally and
# not by a game developer/
# @!visibility private
attr_writer :systems
# Create a new Scene using the name given
# @param name [String] String format must follow requirements of a constant
def initialize(name)
FelFlame::Scenes.const_set(name, self)
@const_name = name
end
# The list of Systems this Scene contains
# @return [Array<System>]
def systems
@systems ||= []
end
# Execute all systems in this Scene, in the order of their priority
# @return [Boolean] +true+
def call
systems.each(&:call)
true
end
# Adds any number of Systems to this Scene
# @return [Boolean] +true+
def add(*systems_to_add)
self.systems |= systems_to_add
systems.sort_by!(&:priority)
FelFlame::Stage.update_systems_list if FelFlame::Stage.scenes.include? self
true
end
# Removes any number of SystemS from this Scene
# @return [Boolean] +true+
def remove(*systems_to_remove)
self.systems -= systems_to_remove
systems.sort_by!(&:priority)
FelFlame::Stage.update_systems_list if FelFlame::Stage.scenes.include? self
true
end
# Removes all Systems from this Scene
# @return [Boolean] +true+
def clear
systems.clear
FelFlame::Stage.update_systems_list if FelFlame::Stage.scenes.include? self
true
end
end
end
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