Cheat-system...

Well, I decided to post some of my tutorials here...
Okay, this is the first one. In this I teach you how to make new
Cheat-system.

---

I have used WSJ's ingame-message in this tutorial,
they can be found here (just scroll down the page):

http://diehardwolfers.areyep.com/viewtopic.php?t=1795


First open WL_DEF.H and add this somewhere
to the WL_PLAY.C definitions.

Code:


int cheater;


Then open the WL_PLAY.C and go to the "CheckKeys"-function.

Now we shall modify the "M-L-I"-cheat a bit (to make the
cheat-system work but you can make your own letter
combination for the cheats too):

Code:


//
// Activate cheat-system
//
if (Keyboard[sc_M] &&
    Keyboard[sc_L] &&
    Keyboard[sc_I])
{
    GetMessage("Press 'W' for weapons and ammo,\n 'K' for all keys and\n 'H' for full health.");
    cheater = true;

    IN_ClearKeysDown();
}

// Cheats
if (!cheater)
    SD_PlaySound(DONOTHINGSND);
else
{
    if(Keyboard[sc_W]) // ammunition cheat
    {
          GiveWeapon(wp_chaingun);
          gamestate.ammo=99; 

          GetMessage("Weapons and ammo.");
          DrawAmmo();
 
          IN_ClearKeysDown(); 
    }
    if(Keyboard[sc_K]) // cheat for keys
    {
            gamestate.keys = 3; // change the value to 15 for four keys           

            GetMessage("All keys acquired.");
            DrawKeys();
 
            IN_ClearKeysDown();
      }
      if(Keyboard[sc_H]) // cheat for life
      {       
            gamestate.health = 100;
            GiveExtraMan();

            GetMessage("Full recovery.");
             
              IN_ClearKeysDown();
      }
}                   


Then we must add this red line to the "NewGame"-function
in the WL_MAIN.C (So the debugmode won't be open
when player starts the game):

Code:


gamestate.episode=episode;

[color=red]cheater = false; [/color]
startgame = true


Remember to add this line to the "Died"-funcion
in the WL_GAME.C too (so the cheats will turn of
if player die) and if you want, to the GameLoop function
(it can be find also in the WL_GAME.C).

i didn't read it yet (i have 5 minutes to reply to ever post) but from the skimming of it i like it
well all coding scripts look nice...

Can you make a cheat so my ammo doesn't go down when I shoot?

erm i belive wlhack can. or you can ask schabbs but he is not on for now.
press mli for 100% hp, 99 ammo, 2 keys

Its rather easy:

In WL_Def.H (at the bottom):

Code:


int unlimited;


Then change the ammunition cheat to this:

Code:


    if(Keyboard[sc_W]) // ammunition cheat
    {
          GiveWeapon(wp_chaingun);
          gamestate.ammo=99; 
          unlimited = true;

          GetMessage("Weapons and ammo.");
          DrawAmmo();
 
          IN_ClearKeysDown(); 
    }


Then open WL_Agent.C and search for
these lines (in T_Attack):

Code:


case 1:
  if (!gamestate.ammo)
  {
  // can only happen with chain gun
    gamestate.attackframe++;
    break;
  }
  GunAttack (ob);
  gamestate.ammo--;
  DrawAmmo ();
break;


And change it to this:

Code:


case 1:
  if (!gamestate.ammo)
  {
  // can only happen with chain gun
    gamestate.attackframe++;
    break;
  }
  GunAttack (ob);
  if(!unlimited)
  {  gamestate.ammo--;  }
  else{}
  DrawAmmo ();
break;


Now you just need to add this line:

Code:


unlimited = false;


To NewGame function in WL_Main.C,
To Died function in WL_Game.C,
And of course if you want, to the GameLoop
(also in WL_Game.C).

you are always here with wolf3d coding tips, eh?

Heh... Atleast, trying to...
I soon release new tutorial.