posted 03-02-2000 07:10 PM            

Ok, I changed the knockback of the machinegun so that you flew all over the place. It's really fun.

Open up g_combat.c and goto the G_Damage() function. It's around line 447.

Now, if you look down in the function a bit, you'll see a small section dealing with the knockback of each weapon. This section starts around line 500.

If you read the code, you'll notice that the knockback of each weapon is the damage that it does. So, in terms of functions, you don't pass the knockback variable to the function, it's automatically calculated by the function.

Therefore, you have 2 options. One, you can make a new global variable for knockback and implement that into your code, or Two, you can simply change the knockback according to the means of death variable passed into the function.

I chose the more simple number 2. It's faster and a lot more easy to implement. So, here what we're gonna change. You should see this code:

code:

---

knockback = damage;
if ( knockback > 200 ) {
	knockback = 200;
}
if ( targ->flags & FL_NO_KNOCKBACK ) {
	knockback = 0;
}
if ( dflags & DAMAGE_NO_KNOCKBACK ) {
	knockback = 0;
}

---

I have classified this as being the "knockback section." All you have to do from here is add one if-statement to the code in order to change the knockback of the desired weapon.

Here's my updated "knockback section":

code:

---

knockback = damage;
if ( knockback > 200 ) {
	knockback = 200;
}
if ( targ->flags & FL_NO_KNOCKBACK ) {
	knockback = 0;
}
if ( dflags & DAMAGE_NO_KNOCKBACK ) {
	knockback = 0;
}
//change knockback for machinegun
if ( mod == MOD_MACHINEGUN ) {
	knockback = 1000;
}

---

Let me interpret this snippet of code for you guys real quick. It's quite easy to understand.

First, you set the knockback to the amount of damage that the weapon does. Then, it checks to make sure that knockback is not greater than 200, if so, it caps it at 200. Finally, it checks the game flags to see if knockback should be applied. If not, set knockback to zero. Very simple!

Now, as for my added code, all I did was check to see of the means of death that passed to the function was for the machinegun (MOD_MACHINEGUN), if so, I changed the knockback to 1000.

In conclusion, I just want to say that there are many more efficient ways of implementing different knockbacks to eash weapon. But, I chose the easiest as I only wanted to have fun for a little while. Therefore, I suggest a more universal method of applying knockback with the use of a global variable.