if

The syntax is : if (condition) { statements1 } else { statements2 }. If the condition is true, it will execute statements1, else it will execute statements2. Notice that the { } sorrounding the statements are only necessary if the statements are more than one. The else part is optional.

library IfTest
{
    integer x = 0;

    function onInit()
    {
        if(x==0)
        {
            BJDebugMsg("it is 0");
        }
        else
        {
            BJDebugMsg("it is not 0");
        }

        x = GetRandomInt(0,3);
        
        //shorter way (take advantage that the blocks are one liners
        // (does the same as above)
        if(x==0)  BJDebugMsg("it is 0");
        else      BJDebugMsg("it is not 0");

        x = GetRandomInt(0,6);
        if(x==5)
        {
            BJDebugMsg("Today is your lucky day, because you got a 5");
        }
        else if (x==0)
        {
            //There is no such thing as an elseif in Zinc, but as you
            // can see, since the only thing inside this else block is
            // an if statement, it can work the same.
            BJDebugMsg("Today is your unlucky day,")
            BJDebugMsg(" you got a 0");
        }
        else
        {
            BJDebugMsg("Normal day");
            //ifs can be nested.
            if( x==4) {
                BJDebugMsg("But hey, at least it is a 4, that is good");
            }
        }

    }

}

The condition is expected to be of a boolean type, the boolean type can either be true or false. e.g: Comparisons like == return true or false.

Last modified: 16 October 2024