Strategy-Machine

Implementation of a strategy machine for Godot Engine, similar to a state machine but less restrictive (godot 4.1+)

How to use

1. add a new node StrategyMachine node as a child.
2. add a new node StrategyController as a child of the StrategyMachine node and change the node name.
3. add a new node Strategy as a child of the StrategyMachine node and change the node name.
4. extend a new script from StrategyController and implement behavior between strategies.
5. extend a new script from Strategy and implement the _enter_strategy, _exit_strategy methods.

StrategyController

func switch_strategy_to(strategy_name: String)

Turns off the current Strategy and switches to the strategy with the specified name.

This function simplifies the use of the machine by abstracting access to the machine's strategies.

func enable_strategy(strategy_name: String)

Enables the Strategy with the specified name, without affecting the rest of the strategies.

This function simplifies the use of the machine by abstracting access to the machine's strategies.

func disable_strategy(strategy_name: String)

Disables the Strategy with the specified name, without affecting the rest of the strategies.

This function simplifies the use of the machine by abstracting access to the machine's strategies.

func toggle_strategy(strategy_name: String)

Enables or disables a specific Strategy with the specified name.

This function simplifies the use of the machine by abstracting access to the machine's strategies.

Strategy

_enter_strategy()

Called when the strategy is enabled.

_exit_strategy()

Called when the strategy is disabled.

Example

extends StrategyController

func _ready():
    switch_strategy_to("Strategy1")

extends Strategy

func _enter_strategy():
    print("Strategy1 enabled")

func _exit_strategy():
    print("Strategy1 disabled")