and: Difference between revisions

From Bohemia Interactive Community
Jump to navigation Jump to search
m (template:command argument fix)
(5 intermediate revisions by 3 users not shown)
Line 7: Line 7:
____________________________________________________________________________________________
____________________________________________________________________________________________


| Returns [[true]] only if both conditions are [[true]]. In case of the alternative syntax, [http://en.wikipedia.org/wiki/Lazy_evaluation#Control_structures lazy evaluation] is used (if left operand is [[false]], evaluation of the right side is skipped completely). |= Description
| Returns [[true]] only if both conditions are [[true]]. In case of the alternative syntax, [http://en.wikipedia.org/wiki/Lazy_evaluation#Control_structures lazy evaluation] is used (if left operand is [[false]], evaluation of the right side is skipped completely). |DESCRIPTION=
____________________________________________________________________________________________
____________________________________________________________________________________________


| [[Boolean]] <nowiki>=</nowiki> a '''and''' b |= Syntax
| [[Boolean]] <nowiki>=</nowiki> a '''and''' b |SYNTAX=
|p1= a: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |= Parameter 1
|p1= a: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |PARAMETER1=
|p2= b: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |= Parameter 2
|p2= b: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |PARAMETER2=
| [[Boolean]] |= Return value
| [[Boolean]] |RETURNVALUE=






|s2= [[Boolean]] <nowiki>=</nowiki> a '''and''' b (''Only available since ArmA 2:OA v1.62.'') |= Syntax
|s2= [[Boolean]] <nowiki>=</nowiki> a '''and''' b (''Only available since ArmA 2:OA v1.62.'') |SYNTAX=
|p21= a: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |= Parameter 1
|p21= a: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |PARAMETER1=
|p22= b: [[Code]] - Code that returns [[Boolean]]. It is not evaluated if '''a''' returns as [[false]]. |= Parameter 2
|p22= b: [[Code]] - Code that returns [[Boolean]]. It is not evaluated if '''a''' returns as [[false]]. |PARAMETER2=
|r2= [[Boolean]] |= Return value
|r2= [[Boolean]] |RETURNVALUE=
____________________________________________________________________________________________
____________________________________________________________________________________________
   
   
|x1= <code>[[if]] (([[alive]] [[player]]) and (_enemycount == 0)) then {[[hint]] "you win !"}</code> |= Example 1
|x1= <code>[[if]] (([[alive]] [[player]]) and (_enemycount == 0)) then {[[hint]] "you win !"}</code> |EXAMPLE1=
|x2= <code>[[if]] (([[count]] _array > 0) and {(_array [[select]] 0) == [[player]]}) then {[[hint]] "It works! Without lazy evaluation it would throw an error if array was empty."}</code> |= Example 2
|x2= <code>[[if]] (([[count]] _array > 0) and {(_array [[select]] 0) == [[player]]}) then {[[hint]] "It works! Without lazy evaluation it would throw an error if array was empty."}</code> |EXAMPLE2=


|mp= no special considerations|=
|mp= no special considerations|=
____________________________________________________________________________________________
____________________________________________________________________________________________


| [[a && b]], [[or]], [[Operators]] |= See also
| [[a && b]], [[or]], [[Operators]] |SEEALSO=


}}
}}
Line 42: Line 42:


[[Category:Scripting Commands|AND]]
[[Category:Scripting Commands|AND]]
[[Category:Scripting Commands OFP 1.99|AND]]
[[Category:Scripting Commands OFP 1.96|AND]]
[[Category:Scripting Commands OFP 1.96|AND]]
[[Category:Scripting Commands OFP 1.46|AND]]
[[Category:Scripting Commands OFP 1.46|AND]]
Line 49: Line 50:
[[Category:Scripting Commands Arma 3|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting Commands Arma 3|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting_Commands_Take_On_Helicopters|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting_Commands_Take_On_Helicopters|{{uc:{{PAGENAME}}}}]]
<!-- CONTINUE Notes -->
<dl class="command_description">
<dd class="notedate">Posted on April 12, 2015 - 10:45 (UTC)</dd>
<dt class="note">[[User:IT07|IT07]]</dt>
<dd class="note">
Just like the "or" command, the "and" command allows several conditions to be checked. Example: <br>
<code>if(alive player and speed player > 0 and _someOtherVar) then { hint"All three condtions are true" };</code>
The example above will check if the player is alive and if the player is moving and checks if _someOtherVar is true.
</dd>
</dl>
<!-- DISCONTINUE Notes -->

Revision as of 15:28, 7 April 2019

Logo A0.png1.00
Hover & click on the images for description

Description

Description:
Returns true only if both conditions are true. In case of the alternative syntax, lazy evaluation is used (if left operand is false, evaluation of the right side is skipped completely).
Multiplayer:
no special considerations
Groups:
Uncategorised

Syntax

Syntax:
Boolean = a and b
Parameters:
a: Boolean - Test condition or variable that returns Boolean.
b: Boolean - Test condition or variable that returns Boolean.
Return Value:
Boolean

Alternative Syntax

Syntax:
Boolean = a and b (Only available since ArmA 2:OA v1.62.)
Parameters:
a: Boolean - Test condition or variable that returns Boolean.
b: Code - Code that returns Boolean. It is not evaluated if a returns as false.
Return Value:
Boolean

Examples

Example 1:
if ((alive player) and (_enemycount == 0)) then {hint "you win !"}
Example 2:
if ((count _array > 0) and {(_array select 0) == player}) then {hint "It works! Without lazy evaluation it would throw an error if array was empty."}

Additional Information

See also:
a && borOperators

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note

Notes

Bottom Section

Posted on April 12, 2015 - 10:45 (UTC)
IT07
Just like the "or" command, the "and" command allows several conditions to be checked. Example:
if(alive player and speed player > 0 and _someOtherVar) then { hint"All three condtions are true" }; The example above will check if the player is alive and if the player is moving and checks if _someOtherVar is true.
Retrieved from "https://community.bistudio.com/wiki?title=and&oldid=120160"