66 replies to this topic

[Saffith]

The simplest way would be Link->Item[item]=true. If you want him to hold it up, though, that's a bit tougher. I'm pretty sure using CreateItem() and moving it to Link's position would work, but I don't think you can do that while the screen's frozen.

[Christian]

What if i ditch the part of freezing the screen and have all of link's actions false,give him the item and the re enable links action again? You should really add in this tutorial on how every link pointer works. Even though thats in zscript.txt

[Joe123]

Why should you not be able to do it while the screen's frozen?
I'm pretty sure you can.

[Christian]

Maybe because im freezing the screen . But thinking about it would seem awkward having the screen frozen. So ill just disable all of links action untill he receives the item.

[Schwa]

I'm seriously wracking my brain over this bit here... Scratch that. My skull is being ripped apart with diamond-crafted hooks.

You'll notice that many variables have a note that "The effects of writing to this variable are undefined." These are meant to be read-only; you shouldn't try to change them. Assigning new values to these variables may not work as expected, and even if it does, it's not guaranteed to work on every platform or in later versions.

I've seen this technique imployed in various scripts, one example being the Straffe Script; it's a script where Link can walk in all directions while facing one set direction the whole time as long as you hold the L Button. To achieve this, it writes to "Link->Dir", which is labeled "read-only" as you stated.

During all my latest scripting endeavors I've been desperately wanting to mess with some of these untouchable variables, and have been frustrated that they were off-limits. Then later I came across this Straffe Script, freaked out, looked this up for clarification, and now I want to cry.

Are you telling me that any of these read-only variables MIGHT be changeable but it's nothing but one big ridiculous gamble, in that it might change later or might not and there's no way to know?

...That's really unfair. I want to cry. I'm afraid to script now.

Edited by Schwa, 13 January 2010 - 07:53 AM.

[Joe123]

Basically what that means is 'you can use them, but don't take it for granted that they will always work how they do at the moment'.
Setting Dir shouldn't really have that written after it in ZScript.txt in my opinion because it's something that everyone uses.

[Schwa]

Ah alright. I think most of my fear was just the initial shock. At the very worst, I could just re-write something if it became broken, and from what I've seen _L_ is a pretty reasonable guy and has made accommodations for community members in the past... ^^ Nothing to worry about! Thanks brah.

[Schwa]

Alright, I want to make sure I'm doing this right. Take a look.

CODE

Link->InputUp & (FrameCount % 2);

...where "FrameCount" is a variable that is incremented once per frame. The object is to halve the speed of Link's movement by disabling the four arrow keys every other frame (meaning I apply this to InputDown, Left and Right as well). I haven't tested it yet, as I'm setting up a couple different scripts at once, but do you guys think this will work? I don't think I ever used Bitwise AND or the Modulus operator once yet, and it's kinda hilarious that I'm now using both at the same time. It looks like it'd work though!

Keep in mind too that Link->InputUp is a boolean. Just reminding people.

[Joe123]

Yeah, you'll get a 'Cannot cast from bool to float' error on that one.

CODE

if(Link->InputUp && FrameCounter%2) Link->InputUp = false;

Thinking about it, that's a much better way than how I had been doing it previously. I shall update my code.

[Cameron]

Why did it take me so long to find this!? This is absolutely perfect. Thanks!

[Orithan]

I'm sure that it is perfectly reasonable to bump this topic for this: Right now, I am making a Purple Chu Potion script, and I want to install a section that freezes the screen while it damages/heals Link, very much like what the built-in potions do. How do you do that without setting a Screen Freeze Combo on the screen while it does that (if the player F6s while it is in action, there WILL be troble if I use the Screen Freeze Combo method).

[TheLegend_njf]

This topic is wonderful, I was always intimidated by scripts until I read this topic.

Also, I am reading it over and over just so I can absorb all the material. I highly recommend this topic to anybody who knows how to add scripts to their quest but is not entirely sure what it is that they are adding.

[Mero]

Good to hear your feeling less intimidated now, If there's anything you don't understand feel free too ask in this topic or my AMA topic. The link is in my signature.

[SyrianBallaS]

zscripting seems pretty cool, it's like a mix of C and Java. Is the run() function simialar to main()

Edited by GhostKnight22, 12 June 2014 - 12:32 PM.

[Frocks7Snee]

Here's how you would use this made-up function.

// All the function does is add two numbers, so it's equivalent to ordinary addition.
// You assign the return value to a variable the same way as anything else.
this->X = Add(5, 11); // Equivalent to this->X = 5 + 11;
Link->HP = Add(48, -16); // Equivalent to Link->X = 48 + -16;
Add(10, 25) = this->Y; // ERROR: You can't assign a value to a function
Link->HP = Add(4, 12, 8); // ERROR: The function takes exactly two arguments; you can't use more or fewer, even if it seems logical

There's a small error in the functions section you might want to fix so that it won't confuse people. The function in question is Link->HP = Add(48,-16) but you describe it as "Equivalent to Link->X = 48 + -16"

 

EDIT: My bad, didn't see how old this was. 

Edited by Rocks4Free, 15 June 2014 - 08:59 AM.