28 lines
754 B
GDScript
28 lines
754 B
GDScript
class_name GameState
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extends Node
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signal state_changed(previous, new)
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# https://github.com/GDQuest/godot-demos/blob/master/2018/04-24-finite-state-machine/player_v2/state_machine.gd
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# http://www.gameprogrammingpatterns.com/state.html
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enum State { MAIN, WINNING, GAME_OVER }
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var transitions = {
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State.MAIN : [ State.WINNING ],
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State.WINNING : [ State.GAME_OVER ],
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State.GAME_OVER : [ State.MAIN ]
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}
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export(State) var current_state = State.MAIN
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func current_state_name() -> String:
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return State.keys()[current_state]
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func transition_to(state):
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if current_state == state:
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return
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assert(state in transitions[current_state])
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var previous_state = current_state
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current_state = state
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emit_signal("state_changed", previous_state, current_state)
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