User:Hardrock/Sandbox

1.85

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Description

Description:

Syntax with One Code BlockThis structure checks for a condition and executes a code block, if the condition equals true. Additionally you may define a code block, which is executed if the condition equals false.

Groups:

Uncategorised

Syntax

Syntax:

if (condition) then if_code if (condition) then if_code else else_code

Parameters:

condition: Boolean - either a variable or any comparison or code that returns either true or false

if_code: String - the code, which is executed if the condition equals true. The code is usually written in curly braces ('{', '}'), but you may also use quotes (see String Notation). You have to seperate different commands with a semicolon (';'). The rules for code blocks are equal to those for functions (see Chapter 2. Functions (*.sqf)). Variables used in code blocks have to defined previously, otherwise they will be deleted after its execution.

condition: Boolean - either a variable or any comparison or code that returns either true or false

if_code: String - the code, which is executed if the condition equals true. See above for the code block syntax.

else_code: String - the code, which is executed if the condition equals false. See above for the code block syntax.

Return Value:

Any Type - If the condition is fulfilled, the last given value of the if_code code block is returned (if not followed by a semicolon). Else Nothing is returned. Any Type If the condition is fulfilled, the last given value of the if_code code block, else the last given value of the else_code code block is returned (if not followed by a semicolon).Example 1:if (canFire tank) then {grp1 setCombatMode "BLUE"} else {grp1 setCombatMode "RED"} Example 2:_text = if (alive player) then {"alive"} else {"not alive"}hint _text outputs the message "alive", if the player is alive, and "not alive" if not.Additional Syntax in Scripts OFP's scripting language provides another language structure with a similar task: '? condition : code'. This structure may be only used in scripts although (see Chapter 1. Scripts (*.sqs)). It is less strict than 'if ... then'; for 'if ... then' conditions have to be embraced by two brackets, while for '? ... :' they don't.? alive player : hint "yes" This code is completely valid, while you have to add the brackets, if you want to use the 'if ... then' syntax:if (alive player) then {hint "yes"} Â

Examples

Example 1:

if (!canFire tank) then {grp1 setCombatMode "RED"} Note You have to take care, that combined conditions are embraced by parenthesises. Wrong: if (alive player) && (someAmmo player) then {hint "yes"} Right: if ((alive player) && (someAmmo player)) then {hint "yes"}Syntax with Two Code BlocksYou may define another code block, which is executed if the condition doesn't fulfill.

Additional Information

See also:

See also needed

Notes

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