I'm scripting a jetpack perk for a mod but I've come into some trouble. I scripted it but later found that SetVelocity() is apparently SP only :/.

I intended my jetpack to just give a vertical boost to the player when the space button is pressed whilst maintaining the players previous velocity. Any help is appreciated :)

My script:

setupRocketPack()
{
	self endon("death");
	self endon("disconnect");
	
	if ( self.rocketpack )
	{
		player.rocketpackfuel = 20;
		while((self ButtonPressed( "SPACE" )) && (player.rocketpackfuel != 0))
		{
			vel = level.player GetVelocity();
			player.MoveGravity(0, 0, 10, 1);
			player.rocketpackInUse = true;
		}
		
		while((player.rocketpackInUse == true) && (player.rocketpackfuel != 0))
		{
		
		player.rocketpackfuel = (player.rocketpackfuel - 1);
		wait 0.1;
		
		}
		
		while(player !ButtonPressed( "SPACE" ))
		{
			player.rocketpackInUse = false;
		}
		
		while((player.rocketpackInUse == false) && (player.rocketpackfuel != 20))
		{
		
		player.rocketpackfuel = (player.rocketpackfuel + 1);
		wait 0.5;
		
		}
		
	}
	
	else if ( !self.rocketpack )
	{
		player.rocketpackInUse = false;
		player.rocketpackfuel = 20;
	}
	

}

EDIT: Damn, when I searched the first time nothing appeared but I've just found a similar topic so apologies for that, although it only contained topics about jetpacks that didn't retain previous velocity so I still need help :/

edited on Feb. 13, 2011 02:24 pm by [aL]RogeR

It can be done manually using a separate threaded loop. The simplest method is to use previous and current positions over time. In the loop get the two values, find the distance and direction, apply to a couple of player variables (player.myspeed etc), set the next 'previous' position to be the current one, wait a short time, then continue the loop again getting the new current position. Then compare again.

Unless someone knows of a mp variable that already does this? I never found one.

I actually got the script to work without error I'm yet to test if it works ingame because I need to make a shader or w/e for the perk but I don't know where they are located :/.

BTW I did it by spawning then linking a script_origin, then using movegravity() to fling the player upwards :)

edited on Feb. 13, 2011 04:38 pm by [aL]RogeR

So basically you made an exploding barrel and attached a player to it. That could be fun. Reminds me of kids attaching fire crackers to GI Joe and lighting them. There are several tutorials here for making materials and effects.

In a nutshell yes xD

Only problem now is I get the error:

'Shader name string is empty'

My statsTable.csv (new perk at the end):
[

149,3149,,,,,,,,,
150,150,specialty,PERKS_EAVESDROP,specialty_parabolic,,specialty_parabolic,PERKS_HEAR_VOICE_CHAT_OF_NEARBY,perk3,,PERKS_UNLOCKED_AT_MAJOR_I_LV35
151,151,specialty,PERKS_UAV_JAMMER,specialty_gpsjammer,,specialty_gpsjammer,PERKS_UNDETECTABLE_ON_ENEMY,perk2,,PERKS_UNLOCKED_AT_SERGEANT
152,152,specialty,PERKS_IRON_LUNGS,specialty_holdbreath,,specialty_holdbreath,PERKS_LONGER_BREATH_FOR_STEADIER,perk3,,PERKS_UNLOCKED_AT_2ND_LIEUTENANT
153,153,specialty,PERKS_DEAD_SILENCE,specialty_quieter,,specialty_quieter,PERKS_MAKE_LESS_SOUND_WHEN,perk3,,PERKS_UNLOCKED_AT_BRIGADIER
154,154,specialty,PERKS_EXTREME_CONDITIONING,specialty_longersprint,,specialty_longersprint,PERKS_SPRINT_FOR_LONGER_DISTANCES,perk3,,
155,155,specialty,PERKS_BOMB_SQUAD,specialty_detectexplosive,,specialty_detectexplosive,PERKS_ABILITY_TO_SEEK_OUT_ENEMY,perk1,,PERKS_UNLOCKED_AT_STAFF_SERGEANT
156,156,specialty,PERKS_SONIC_BOOM,specialty_explosivedamage,,specialty_explosivedamage,PERKS_HIGHER_EXPLOSIVE_WEAPON,perk2,,
157,157,specialty,PERKS_LAST_STAND,specialty_pistoldeath,,specialty_pistoldeath,PERKS_PULL_OUT_YOUR_PISTOL,perk3,,PERKS_UNLOCKED_AT_CORPORAL
158,158,specialty,PERKS_MARTYRDOM,specialty_grenadepulldeath,,specialty_grenadepulldeath,PERKS_DROP_A_LIVE_GRENADE_WHEN,perk3,,PERKS_UNLOCKED_AT_GUNNERY_SERGEANT
159,159,specialty,,,,,,,,
160,160,specialty,PERKS_STOPPING_POWER,specialty_bulletdamage,,specialty_bulletdamage,PERKS_INCREASED_BULLET_DAMAGE,perk2,,
161,161,specialty,PERKS_DEEP_IMPACT,specialty_bulletpenetration,,specialty_bulletpenetration,PERKS_DEEPER_BULLET_PENETRATION,perk3,,
162,162,specialty,PERKS_STEADY_AIM,specialty_bulletaccuracy,,specialty_bulletaccuracy,PERKS_INCREASED_HIPFIRE_ACCURACY,perk3,,
163,163,specialty,PERKS_DOUBLE_TAP,specialty_rof,,specialty_rof,PERKS_INCREASED_RATE_OF_FIRE,perk2,,PERKS_UNLOCKED_AT_1ST_LIEUTENANT
164,164,specialty,PERKS_SLEIGHT_OF_HAND,specialty_fastreload,,specialty_fastreload,PERKS_FASTER_RELOADING,perk2,,PERKS_UNLOCKED_AT_MASTER_SERGEANT
165,165,specialty,PERKS_BANDOLIER,specialty_extraammo,,specialty_extraammo,PERKS_EXTRA_AMMUNITION_MAGAZINES,perk1,,PERKS_UNLOCKED_AT_CAPTAIN_I
166,166,specialty,PERKS_OVERKILL,specialty_twoprimaries,,specialty_twoprimaries,PERKS_CARRY_TWO_PRIMARY_WEAPONS,perk2,,PERKS_UNLOCKED_AT_LIEUTENANT
167,167,specialty,PERKS_JUGGERNAUT,specialty_armorvest,,specialty_armorvest,PERKS_INCREASED_HEALTH,perk2,,
168,168,specialty,PERKS_ROCKETPACK,specialty_rocketpack,,specialty_rocketpack,PERKS_ROCKET_BOOST_TO_JUMP,perk1,,

I've got a specialty_rocketpack.iwi in images as well, just tried everything now to get rid of this error to no avail :P

Ok. You also need to make a specialty_rocketpack material, which is what the game looks for not the iwi's themselves. Open up the asset manager, create a new material with that name. The material type should be 2d. Source to default (I think), Surfacetypes to none/notineditor. blendfunc to Blend. The color map is your image (must be a targa or dds... dont know about iwis). Leave the rest at the defaults. Put the new material into the mod.csv file (material,specialty_rocketpack).

Just so you know, new perks like that must have _mp at the end of them like clays or rpgs. The game will only recognize the stock perks when it tries to register them, the exceptions being scripted ones like clays. It will have to be

168,168,specialty,PERKS_ROCKETPACK,specialty_rocketpack_mp,,specialty_rocketpack,PERKS_ROCKET_BOOST_TO_JUMP,perk1,,

Also there are a few functions (like setPerk) that will not work with them. So you may have to add various checks in the relevant scripts. The usual 'getPerk' checks will not work. It will require setting a flag on the player and checking for that.

Do you prechache the shader? if not do before any main statement:

PrechacheShader("specialty_rocketpack");

Also, make sure to add the new material to the Mod.csv:

material,specialty_rocketpack

Edit:

_class.gsc already should precache it...

precacheShader( level.perkIcons[level.tbl_PerkData[i]["reference_full"]] );

Note that reference_null is the sixth column in statstable.csv (starts at 0)

edited on Feb. 14, 2011 05:11 am by zeroy

Still not working after changing it to have _mp at the end, I already made the icon with those exact settings but still no change. :P

Zeroy, my precacheshader line in _class is different to yours being just

precacheShader( level.perkIcons[perkRef] );

and if I change it to the one you had then it just gives undefined variable i.

Rather frustrating, but the help is greatly appreciated from both of you :)

Zeroy btw is your site down I can't seem to access it.

edited on Feb. 14, 2011 01:19 pm by [aL]RogeR

Perk icon shaders are all already precached in _class as the perk data is read from the table. No need to add it elsewhere. Do you have a new initPerkData() entry in class?

I've got one:

initPerkData( "specialty_rocketpack_mp" );

:)

Just to make sure, where should the statsTable.csv go in my mod. I presume Mods/[modname]/mp but dunno :P


edited on Feb. 14, 2011 02:02 pm by [aL]RogeR