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Better description of the binds parameter of connect

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Now states how binds are handled if they are used together with parameters passed to emit_signal
This commit is contained in:
Benjamin Navarro 2019-11-03 21:33:00 +01:00 committed by Rémi Verschelde
parent daefd4f047
commit b81f9f777f
1 changed files with 8 additions and 1 deletions
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9
doc/classes/Object.xml
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@ -139,7 +139,7 @@
<argument index="4" name="flags" type="int" default="0">
</argument>
<description>
Connects a [code]signal[/code] to a [code]method[/code] on a [code]target[/code] object. Pass optional [code]binds[/code] to the call as an [Array] of parameters. Use [code]flags[/code] to set deferred or one-shot connections. See [enum ConnectFlags] constants.
Connects a [code]signal[/code] to a [code]method[/code] on a [code]target[/code] object. Pass optional [code]binds[/code] to the call as an [Array] of parameters. These parameters will be passed to the method after any parameter used in the call to [method emit_signal]. Use [code]flags[/code] to set deferred or one-shot connections. See [enum ConnectFlags] constants.
A [code]signal[/code] can only be connected once to a [code]method[/code]. It will throw an error if already connected, unless the signal was connected with [constant CONNECT_REFERENCE_COUNTED]. To avoid this, first, use [method is_connected] to check for existing connections.
If the [code]target[/code] is destroyed in the game's lifecycle, the connection will be lost.
Examples:
@ -148,6 +148,13 @@
connect("text_entered", self, "_on_LineEdit_text_entered") # LineEdit signal
connect("hit", self, "_on_Player_hit", [ weapon_type, damage ]) # User-defined signal
[/codeblock]
An example of the relationship between [code]binds[/code] passed to [method connect] and parameters used when calling [method emit_signal]:
[codeblock]
connect("hit", self, "_on_Player_hit", [ weapon_type, damage ]) # weapon_type and damage are passed last
emit_signal("hit", "Dark lord", 5) # "Dark lord" and 5 are passed first
func _on_Player_hit(hit_by, level, weapon_type, damage):
print("Hit by %s (lvl %d) with weapon %s for %d damage" % [hit_by, level, weapon_type, damage])
[/codeblock]
</description>
</method>
<method name="disconnect">