Scripts: If command.

[Noodle]

Hi guys, I've got a quick question and if anybody can help me I'd appreciate it a lot since it'd mean a whole new thing to explore for me. 

 

During these months I've been trying to learn how to script and map, and there's one command that I just can't understand and I haven't been successful at finding a tutorial at all. 

 

Can anybody explain to me (or point me at a tutorial) how does the "if" and "else" command works? I've seen it in a few SP maps (like Nar Shadda) but I can't imitate them at all. 

 

If anybody can help me, I'd be very grateful. 

 

p.s: excuse my english, it's not my language. 

[Xycaleth]

It's a way of doing something if a statement is true. If the statement isn't true, then the action after the else command is performed.

 

Consider this sentence:

 

"I'm going to go to the beach if the weather is nice, otherwise I'm going to stay in and play video games."

 

You can rearrange this sentence to read:

 

"If the weather is nice, I'm going to the beach. Otherwise, I'm going to stay in and play video games."

 

In ICARUS, this would look something like:

if ( weather is nice )
{
    go to beach
}
else ( )
{
    play video games
}

Alternatively, in something more game-related:

if ( $get( FLOAT, "SET_PARM1")$, $=$, $1$ ) )
{
    print("SET_PARM1 is equal to 1")
}
else ( )
{
    print("SET_PARM1 is not equal to 1")
}

[Noodle]

Thanks! I've been trying to do a simple script with the range attribute, but it doesn't seems to work. 

	if ( $random( 0, 1 ) > 0.500$ )
	{
		do ( "test1" );
		wait ( "test1" );

		else (  )
		{
			do ( "test2" );
			wait ( "test2" );
		}

	}

The idea was that it'd randomly choose to do a task (test1) or another (task2), yet it does not work. I thought it might be because I don't know how to add the third <expr>, I just typed 0.5, or maybe there is something else I'm unaware of. 

[mrwonko]

The else is not supposed to go inside the if, it should follow it.

[Noodle]

The else is not supposed to go inside the if, it should follow it.

 

 

I hadn't noticed that. I was using this script from ns_streets as reference. There's an if inside an else, I don't get how that works. 

affect ( "kyle", FLUSH )
{

	task ( "going" )
	{
		sound ( CHAN_VOICE, "sound/chars/kyle/09kyk018.mp3" );
	}


	task ( "going_on" )
	{
		sound ( CHAN_VOICE, "sound/chars/kyle/09kyk019.mp3" );
	}


	task ( "join_you" )
	{
		sound ( CHAN_VOICE, "sound/chars/kyle/09kyk020.mp3" );
	}


	if ( $random( 0, 1 ) > 0.500$ )
	{
		do ( "join_you" );
		wait ( "join_you" );
		run ( "ns_streets/bar_conv1b" );
	}


	else (  )
	{

		if ( $random( 0, 1 ) > 0.500$ )
		{
			do ( "going" );
			wait ( "going" );
			run ( "ns_streets/bar_conv1b" );
		}


		else (  )
		{
			do ( "going_on" );
			wait ( "going_on" );
			run ( "ns_streets/bar_conv1b" );
		}

	}

}

[mrwonko]

As a flow chart, that script looks roughly like this.

[Noodle]

As a flow chart, that script looks roughly like this.

Thanks a lot! That's really helpful, hopefully I'll be able to do something nice with this knowledge.