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95 lines
3.8 KiB
ReStructuredText
95 lines
3.8 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/3.5/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/3.5/doc/classes/bool.xml.
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.. _class_bool:
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bool
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====
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Boolean built-in type.
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Description
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-----------
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Boolean is a built-in type. There are two boolean values: ``true`` and ``false``. You can think of it as a switch with on or off (1 or 0) setting. Booleans are used in programming for logic in condition statements, like ``if`` statements.
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Booleans can be directly used in ``if`` statements. The code below demonstrates this on the ``if can_shoot:`` line. You don't need to use ``== true``, you only need ``if can_shoot:``. Similarly, use ``if not can_shoot:`` rather than ``== false``.
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::
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var can_shoot = true
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func shoot():
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if can_shoot:
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pass # Perform shooting actions here.
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The following code will only create a bullet if both conditions are met: action "shoot" is pressed and if ``can_shoot`` is ``true``.
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\ **Note:** ``Input.is_action_pressed("shoot")`` is also a boolean that is ``true`` when "shoot" is pressed and ``false`` when "shoot" isn't pressed.
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::
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var can_shoot = true
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func shoot():
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if can_shoot and Input.is_action_pressed("shoot"):
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create_bullet()
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The following code will set ``can_shoot`` to ``false`` and start a timer. This will prevent player from shooting until the timer runs out. Next ``can_shoot`` will be set to ``true`` again allowing player to shoot once again.
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::
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var can_shoot = true
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onready var cool_down = $CoolDownTimer
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func shoot():
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if can_shoot and Input.is_action_pressed("shoot"):
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create_bullet()
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can_shoot = false
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cool_down.start()
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func _on_CoolDownTimer_timeout():
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can_shoot = true
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Methods
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-------
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+-------------------------+----------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`bool<class_bool_method_bool>` **(** :ref:`int<class_int>` from **)** |
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+-------------------------+----------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`bool<class_bool_method_bool>` **(** :ref:`float<class_float>` from **)** |
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+-------------------------+----------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`bool<class_bool_method_bool>` **(** :ref:`String<class_String>` from **)** |
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+-------------------------+----------------------------------------------------------------------------------+
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Method Descriptions
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-------------------
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.. _class_bool_method_bool:
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- :ref:`bool<class_bool>` **bool** **(** :ref:`int<class_int>` from **)**
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Cast an :ref:`int<class_int>` value to a boolean value, this method will return ``false`` if ``0`` is passed in, and ``true`` for all other ints.
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----
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- :ref:`bool<class_bool>` **bool** **(** :ref:`float<class_float>` from **)**
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Cast a :ref:`float<class_float>` value to a boolean value, this method will return ``false`` if ``0.0`` is passed in, and ``true`` for all other floats.
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----
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- :ref:`bool<class_bool>` **bool** **(** :ref:`String<class_String>` from **)**
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Cast a :ref:`String<class_String>` value to a boolean value, this method will return ``false`` if ``""`` is passed in, and ``true`` for all non-empty strings.
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Examples: ``bool("False")`` returns ``true``, ``bool("")`` returns ``false``.
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.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
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.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
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.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
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