switch do: Difference between revisions

Revision as of 00:14, 7 February 2021

Game1 needed - Version1 needed

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Description

Description:: This article is a Stub. You can help BI Community Wiki by expanding it.
Description needed
Groups:: Program Flow

Syntax

Syntax:: Syntax needed
Parameters:: switch: Switch Type
: block: Code
Return Value:: Return value needed

Examples

Example 1:

switch (_a) do { case 1 : { /*...code...*/ }; case 2 : { /*...code...*/ }; default { /*...code...*/ }; };

switch (_condition) do {
    case 1: { hint "1" };
    case 2: { hint "2" };
    default { hint "default" };
};

switch (_condition) do {
    case "string1";
    case "string2": { hint "string1 or string2" };
    case "string3";
    case "string4": { hint "string3 or string4" };
    default { hint "default" };
};

Example 2:

_color = switch (side player) do {
    case west: { "ColorGreen" };
    case east: { "ColorRed" };
};

Example 3:

_fn_moveForward = { /*...code...*/ };
_fn_moveBackward = { /*...code...*/ };
_fn_invalidKey = { /*...code...*/ };
switch true do {
    case (_dikCode in actionKeys "MoveForward"): _fn_moveForward;
    case (_dikCode in actionKeys "MoveBackward"): _fn_moveBackward;
    default _fn_invalidKey;
};

Example 4:

switch _var do {
    case "0";
    default { hint str ["default", _var] };
    case "3": { hint str ["3", _var] };
    case "1";
    case "4";
    case "2": { hint str ["2", _var] };
};

_var = "0"; //-> ["3", "0"]
_var = "1"; //-> ["2", "1"]
_var = "2"; //-> ["2", "2"]
_var = "3"; //-> ["3", "3"]
_var = "4"; //-> ["2", "4"]
_var = "5"; //-> ["default", "5"]

Additional Information

See also:: See also needed

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

Posted on 07 Aug, 2008
ColonelSandersLite: Be careful of the parenthesis around the variable you're switching on. If you accidentally use braces instead (ex: switch {_myVar} do{...), it won't error, but will always return default.; Posted on 06 Oct, 2009
Iva: It's possible to use Boolean value as a switch and Code as case. One thing to take special care in such case is that code must be in parentheses. Example: switch (true) do { case (_boolVar): {someCode}; case (unit1 distance unit2 > 5): {someCode}; };

Posted on Nobember 1, 2020 - 10:05 (UTC)
Freddo3000: You are able to call code within the switch statements, such as: _myFunc = { systemChat "0"; case 1: {systemChat "1"}; systemChat "2"; }; _myParameter = 1; switch (_myParameter) do { _myParameter call _myFunc; case 1: {systemChat "4"}; systemChat "3"; default {systemChat "-1";}; }; However the order in which it is executed is difficult to make sense of, see the code comment. This is used by BIS_fnc_missionConversations and BIS_fnc_missionTasks

@@ Line 12: / Line 12: @@
 The [[default]] block will be executed '''only if''' no case matches, no matter at which position inside the switch it is. It is not a case, and will '''never''' be entered by fallthrough.<br>
-{{Informative|[[String]] comparison is case-sensitive. Use [[toUpper]], [[toLower]], [[toLowerANSI]] or [[toUpperANSI]] to force all [[String|strings]] to the same case.}}</br>
+{{Feature|Informative|[[String]] comparison is case-sensitive. Use [[toUpper]], [[toLower]], [[toLowerANSI]] or [[toUpperANSI]] to force all [[String|strings]] to the same case.}}</br>
-{{Informative|If no [[default]] block is provided and no [[case]] is matched, the default value [[true]] is returned. Otherwise it returns whatever the valid case block returns.}}
+{{Feature|Informative|If no [[default]] block is provided and no [[case]] is matched, the default value [[true]] is returned. Otherwise it returns whatever the valid case block returns.}}
 | switch '''do''' block