DieHard Wolfers

[andy3012]

I really really need some help, I know you'll all say to use Paal Olstads (or whatever hes called) tutorial on adding a rocket Launcher, but it just doesn't do it for me I can't stand it!!! , im really stuck here, You can't really make a mod without having either one of the weapons that will compete very much with the others. As far as i kno Paals Rockety Launcher is the only tutorial of the kind that i'm looking for, and i can't use it. Can anybody help me? Perhaps, a page with a written tutorial (rather than a screen dumped one) or anything helpful (not like a useless piece of code for a crud programmer like me)...
Many thanks in return
Andy3012

[wolf3dbreaker]

Hey! That's not so hard... Here you go.
(This is an example on how to make a weapon shoot fire balls)

We are going to make the pistol fire fireballs.

In WL_AGENT.C, add this at the beginning of the file.

::: CODE :::

extern statetype s_fire1;

Then add this declaration before T_KnifeAttack
[BUG FIXED]

::: CODE :::

void FlamethrowerAttack (objtype *ob)
{
   if (gamestate.ammo<1)
   {
      return;
   }

   SD_PlaySound (FLAMETHROWERSND);

   GetNewActor ();

   new->state = &s_fire1;
   new->ticcount = 1;

   new->x = ob->x ;
   new->y = ob->y ;
   new->tilex = new->x >> TILESHIFT;
   new->tiley = new->y >> TILESHIFT;

   new->obclass = fireobj;
   new->dir = nodir;
   new->angle = ob->angle;
   new->speed = 0x4200l;
   new->flags = FL_NONMARK | FL_BONUS;
   new->active = true;
}

And then in GunAttack, change it to look like this:

::: CODE :::

void   GunAttack (objtype *ob)
{
   objtype *check,*closest,*oldclosest;
   int      damage;
   int      dx,dy,dist;
   long   viewdist;

   if (gamestate.weapon == wp_pistol) // change it to your liking.
                          {
      FlameThrowerAttack (ob);
      return;   }

   switch (gamestate.weapon)
   {
   case wp_machinegun:
      SD_PlaySound (ATKMACHINESND);
      madenoise = true;
      break;
   case wp_chaingun:
      SD_PlaySound (ATKGATLINGSND);
      madenoise = true;
      break;
[Rest of the code]

Then in WL_ACT2.C Change the T_Projectil to look like this.

::: CODE :::

void T_Projectile (objtype *ob)
{
   long   deltax,deltay;
   int      damage;
   long   speed;
   objtype *check, *extracheck;



   speed = (long)ob->speed*tics;

   deltax = FixedByFrac(speed,costable[ob->angle]);
   deltay = -FixedByFrac(speed,sintable[ob->angle]);

   if (deltax>0x10000l)
      deltax = 0x10000l;
   if (deltay>0x10000l)
      deltay = 0x10000l;

   ob->x += deltax;
   ob->y += deltay;

   if (!ProjectileTryMove (ob))
   {
      if (ob->obclass == rocketobj)
      {
         PlaySoundLocActor(MISSILEHITSND,ob);
         ob->state = &s_boom1;
      }
#ifdef SPEAR
      else if (ob->obclass == hrocketobj)
      {
         PlaySoundLocActor(MISSILEHITSND,ob);
         ob->state = &s_hboom1;
      }
#endif
      else
         ob->state = NULL;      // mark for removal

      return;
   }

      if (ob->obclass == fireobj && ob->flags & FL_NONMARK && ob->flags & FL_BONUS)
   {
      check = objlist ;
      while (check)
      {
         if (check->flags & FL_SHOOTABLE)
         {
            deltax = LABS(ob->x - check->x);
            deltay = LABS(ob->y - check->y);

            if (deltax < BJROCKETSIZE && deltay < BJROCKETSIZE)
            {
               if (check->obclass != angelobj)
                      //   PlaySoundLocActor(MISSILEHITSND,ob);
               ob->state = &s_boom1;      
               
               DamageActor (check, 25);
               
            }
         }
         check = check->next ;
      }
   }

   else
   {
   {
      // Check if player hit by anything

      deltax = LABS(ob->x - player->x);
      deltay = LABS(ob->y - player->y);

      if (deltax < PROJECTILESIZE && deltay < PROJECTILESIZE)
      {   // hit the player
         switch (ob->obclass)
         {
         case needleobj:
            damage = (US_RndT() >>3) + 20;
            break;
         case rocketobj:
         case hrocketobj:
             //   case sparkobj:
            damage = (US_RndT() >>3) + 30;
            break;
             #ifdef SPEAR
            case sparkobj:
            damage = (US_RndT() >> 3) + 30;
            break;
             #endif
         case fireobj:
            damage = (US_RndT() >>3);
            break;
         }

         TakeDamage (damage,ob);
         ob->state = NULL;      // mark for removal
         return;
      }
   }


   ob->tilex = ob->x >> TILESHIFT;
   ob->tiley = ob->y >> TILESHIFT;

}

   }

Then add this at the beggining of WL_ACT2.C


#define BJROCKETSIZE 0x6000l

There you go. Now the pistol will fire fireballs whenever you fire it..

Enjoy!

Breaker.

P.S This is just the shorter version of Paal's way. Please tell me if there is a bug. I must have mistyped or left something.

[andy3012]

Wow!!! Thanks mate, yeah i'll get right on to checking it...

[wolf3dbreaker]

Glad that you liked it!

[andy3012]

It doesn't work... I need to define a couple things, and change a few things to make it work... Ill post the errors on here tomorow

[wolf3dbreaker]

What exactly are the errors? they worked for me. (I must have mistyped something)

[andy3012]

Wait, i don't think it's this code that is the problem, i think its something else, for some odd reason when i start the game and it comes up with "Get Psyched" screen when that finnishes, it crashes, i think its something to do with Hi-Res, some of my source code files probably got mixed about the place, so i clean up the problem...

Edit: The Problem above was because of my compiler, which was mashed! So i've reinstalled that, and sorted out my source code. When i install it now i get 4 errors in wl_agent.c and 1 in wl_act2.c

In Agent they are:

Undefined symbol: Hit by Rocket
Declaration not allowed here (before it was the flame attack, now its knife attack,
Declaration Syntax error
Declaration Missing ;

in Act2 they are:

Undefined symbol s_burn

[Zombie_Plan]

andy3012 wrote:

In Agent they are:

1)Undefined symbol: Hit by Rocket
2)Declaration not allowed here (before it was the flame attack, now its knife attack,
3)Declaration Syntax error
4)Declaration Missing ;

in Act2 they are:

5)Undefined symbol s_burn

1)Hit by Rocket is a define from another tutorial for alternate death sequences

2)You probably missed a } somewhere just above the error

3)

4)Look above the line with the error, you most likely missed a ; at the end of it

5)Define it! at the top of WL_AGENT.C, in the appropriate place (see Paals tutorial)

Did that help?

[wolf3dbreaker]

I fixed them already. I left it out from my code.
change:

::: CODE :::

ob->state = &s_burn;

to this.

::: CODE :::

ob->state = &s_boom1;

And I left this out. It was from my code. that's why.

::: CODE :::

SD_PlaySound (FLAMETHROWERSND);
   //hitbyrocket = 0;

Sorry. I must have forgotten to take those out of my code!

There. That should fix your bugs.

[andy3012]

I eventually got this to work, their was just a few things that needed defining, and thanks to your bug fixes it works!!

Thank you ever so much Wolf3dbreaker

[wolf3dbreaker]

You're welcome. It's my pleasure helping fellow wolfers.

[andy3012]

Hey, I need a little Help, i have got my flamer and it works fine, but i want to make a crossbow fire objrocket (which will be the bolt), i have added the stuff to wl_agent.c and im sure theres no more that i need to change, but then when i actually shoot the gun in the game, all i get is damage to me. I know it must be something to do with T_Projectile in Wl_act2.c, and i have tried changing a few things, but the same still occours can any body help out please?

[wolf3dbreaker]

Its probably because the crossbow thing is not named fireobj. If it is named rocketobj then modify the part in WL_ACT2 (T_Projectile) to look like this

::: CODE :::

     if (ob->obclass == fireobj && ob->flags & FL_NONMARK && ob->flags & FL_BONUS || ob->obclass == rocketobj && ob->flags & FL_NONMARK && ob->flags & FL_BONUS)
   {
      check = objlist ;
      while (check)
      {
         if (check->flags & FL_SHOOTABLE)
         {
            deltax = LABS(ob->x - check->x);
            deltay = LABS(ob->y - check->y);

            if (deltax < BJROCKETSIZE && deltay < BJROCKETSIZE)
            {
               PlaySoundLocActor(MISSILEHITSND,ob);
               ob->state = &s_boom1;       
               DamageActor (check, 25);  // change this to your liking   
            }
         }
         check = check->next ;
      }
   }

1.Add the red line

2.Change to word rocketobj to the name of the objtype stated in your Attack function in WL_AGENT.C

There you go. Hopefully this will fix that bug of yours.

[Zombie_Plan]

Maybe keep that hurting you effect, and make it you get burnt if you shoot it. That would give a realistic effect.

[wolf3dbreaker]

Deathshead wrote:

Maybe keep that hurting you effect, and make it you get burnt if you shoot it. That would give a realistic effect.

erm.. I think what andy meant was that whenever he shoots his gun, no projectile comes out. the only thing that happens is that he damages himself.

[andy3012]

Yup, that was a great deal of help thanks wolf3dbreaker, and yeh you was right, it wasn't shooting a particle only damaging me.

[wolf3dbreaker]

You're welcome

[Codetech84]

andy3012 wrote:

Yup, that was a great deal of help thanks wolf3dbreaker, and yeh you was right, it wasn't shooting a particle only damaging me.

No, that's not exactly true. It did spawn those particles, only that they are spawn inside the player and they damage you. I guess that flag used in there (FL_BONUS) marks that it was fired by player so it should not damage player, and they can get past him.

[Guest]

*EDIT* Nevermind!!! I fixed it myself!

When I made these sourcecode changes to get pistol to shoot fireballs, I got four errors. I was able to solve two of them but I can't solve the last two errors, these two are:

WL_AGENT.C 1366: Declaration is not allowed here
WL_AGENT.C 1367: Declaration syntax error

I think I got these errors because of I added the Flamethrower attack before T_Knifeattack.

Please help!

[Guest]

Quote:

1)WL_AGENT.C 1366: Declaration is not allowed here
2)WL_AGENT.C 1367: Declaration syntax error

1) At the end of FlameThrower Attack your missing a }.
2) Don`t know of the second one.
Wolf3dBreaker you should add that } on the Flamethrower attack routine.