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while (...)

Syntax

while (<condition>)
	<statement>;

while (<condition>) {
	<statements>
}

Description

This is probably the simplest and most frequently used loop structure. The while (...) statement can be interpreted as "while <condition> is true, perform <statement>". It is a pretest loop, meaning the conditional expression is tested before any of the statements in the body of the loop are performed. If the condition evaluates to false, the statement(s) in the body of the loop is/are never executed. If the condition evaluates to true, the statement(s) are executed, then control transfers back to the conditional expression, which is reevaluated and the cycle continues.

Multiple statements can be grouped with { }, curly braces, just like with the if (...) statement.

Examples

while (switch(select("Yes:No") == 2))
	mes("You picked no.");

Example

Multiple Statements

while (switch(select("Yes:No") == 2 )) {
	mes("Why did you pick no?");
	mes("You should pick yes instead!");
}

Example

Counter-Controlled Loop

set(.@i, 1);
while (.@i <= 5) {
	mes("This line will print 5 times.");
	set(.@i, .@i + 1);
}

Example

Sentinel-Controlled Loop

mes("Input 0 to stop");
input(.@num);
while (.@num != 0) {
	mes("You entered " + .@num);
	input(.@num);
}
close();

See Also