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Merge pull request #35077 from Feniks-Gaming/master

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Expanded bool class description with examples
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Rémi Verschelde 2020-01-14 23:11:20 +01:00 committed by GitHub
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doc/classes/bool.xml
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@ -4,7 +4,38 @@
Boolean built-in type.
</brief_description>
<description>
Boolean built-in type.
Boolean is a built-in type. It can represent any data type that is either a true or false value. You can think of it as an switch with on or off (1 or 0) setting . It's often used as part of programming logic in condition statements like [code]if[/code] statements.
[b]Note:[/b] In a code below [code]if can_shoot[/code] is equivalent of [code]if can_shoot == true[/code]. It is good practice to follow the natural spoken language structure when possible. Use [code]if can_shoot[/code] rather than [code]if can_shoot == true[/code] and use [code]if not can_shoot[/code] rather than [code]if can_shoot == false[/code].
[codeblock]
var can_shoot = true
func shoot():
if can_shoot:
# Perform shooting actions here.
[/codeblock]
The following code will only create a bullet if both conditions are met: action "shoot" is pressed and if [code]can_shoot[/code] is [code]true[/code].
[b]Note:[/b] [code]Input.is_action_pressed("shoot")[/code] is also a boolean that is [code]true[/code] when "shoot" is pressed and [code]false[/code] when "shoot" isn't pressed.
[codeblock]
var can_shoot = true
func shoot():
if can_shoot and Input.is_action_pressed("shoot"):
create_bullet()
[/codeblock]
The following code will set [code]can_shoot[/code] to [code]false[/code] and start a timer. This will prevent player from shooting until the timer runs out. Next [code]can_shoot[/code] will be set to [code]true[/code] again allowing player to shoot once again.
[codeblock]
var can_shoot = true
onready var cool_down = $CoolDownTimer
func shoot():
if can_shoot and Input.is_action_pressed("shoot"):
create_bullet()
can_shoot = false
cool_down.start()
func _on_CoolDownTimer_timeout():
can_shoot = true
[/codeblock]
</description>
<tutorials>
</tutorials>