phorum - Exult Discussion - scripting question

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scripting question

Author: donttalk2commies (---.localdomain)
Date: 10-16-09 22:50

Hi all,

I'm trying to do some scripting for a mod I am making. I have been fiddling around with one for a mage who will sell spells. In the conversation, I have it set up like the following script:

case "spell":
say("@This spell will cost 30 gold, agreeable?@");
if (askYesNo())
	{
	if (hasGold(30))
		{
		UI_add_spell(5, 0, -761);	  
//random spell and spellbook shape number, i read it is supposed 
//to be negative?		
	chargeGold(30);
	say("After accepting your gold, he teaches you a  spell.");
	                }
							
	else say("@No spellbook on Avatar@");
	}
	else say("@Not enough gold@");		
}
elsel say("Avatar doesn't want spell");

Everything compiles fine on my script. I haven't compiled this particular script since this is just a random example, so I don't give away any details on my mod just yet. When I ask the npc about the spell, it -should- teach the spell, but it does not. I even tried the 'find_object' intrinsic for the spellbook but that doesn't seem to work either. Where did I go wrong?

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Re: scripting question

Author: Marzo Sette Torres Junior
Date: 10-17-09 02:56

		UI_add_spell(5, 0, -761);	  
//random spell and spellbook shape number, i read it is supposed 
//to be negative?

The problem is here: negative numbers convert to *npcs*. You are supposed to find the spellbook in the NPC's inventory (e.g., the find_object intrinsic) and use the return of that intrinsic as the spellbook object. For example:

	if (hasGold(30))
	{
		const int AVATAR = -356; // If already defined elsewhere, skip this
		const int QUALITY_ANY = -359; // If already defined elsewhere, skip this
		const int FRAME_ANY = -359; // If already defined elsewhere, skip this

		var spellbook = AVATAR->find_object(761, QUALITY_ANY, FRAME_ANY);
		if (!spellbook)
			say("@No spellbook on Avatar@");
		else if (!UI_add_spell(5, 0, spellbook))
			say("@You already have the spell!@");
		else
		{
			chargeGold(30);
			say("After accepting your gold, he teaches you a  spell.");
		}
	}
	else say("@Not enough gold@");

For more information on intrinsics, please see the intrinsic documentation.

------
Marzo Sette Torres Junior
aka Geometrodynamic Dragon
How To Ask Questions The Smart Way

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