Button use
As requested, here's a quick tutorial on
converting buttons (the ones in game, not the ones on your keyboard) from
things you push by moving against the, into buttons you puch by hitting a key
on your keyboard. I'm going to be describing two ways how to do this, one of
which uses a command which you bind to a key, and the other which uses
Button_use (similar to Button_fire for your fire key, but which id never got
round to using) both are fairly easy, but I prefer the first as I tend to use
button_use for a secondary fire button (using the secondary fire tut on this
site) The second method has the advantage that you don't have to keep hitting
the key to have the effect occur
First of all we have to disable the touch function
of the buttons so that they no longer trigger when you hit them. Open up
g_func.c and scroll down to SP_func_button
Now that we are here, comment out the lines of
code below, in that function. you could delete them, but i don't see much of a
point. if you decide to go back to the old way of doing things it'll make your
life easier
else if (! ent->targetname) ent->touch = button_touch;
all this does is stop buttons from being activated by being
pushed. Buttons that are activated by being shot will still work that way (i'll
be adding checks so you cant activate them by command too)
Method 1
Now to the slightly trickier part. Anyone that's done the
health
station tut will notice similarities in the code.
Thats because I'm almost lifting it straight from that tut
Open up g_cmds.c and go to the end of it. Change it to read
like below
else if (Q_stricmp(cmd, "usebutton") == 0) SCmd_use_button(ent); else // anything that doesn't match a command will be a chat Cmd_Say_f (ent, false, true);
You'll need to bind a key to usebutton to be able to
activate a button
Method 2
Sorry to say, but I havn't tested this method, but it
should work without any problems. If you have a problem, email me and I'll see
what I can do to fix it.
Open up p_client.c i'm using this file because it's good
for effects you want to happen every 0.1 seconds. Go to the function
Clientbeginserverframe and add the code below to it, just before the end }
if (ent->client->buttons & BUTTON_USE) SCmd_use_button(ent);
Fairly simple isn't it? (all this does is check to see if
the button is being pressed at the start of every server frame, and activates
the map button if it is.) You'll need to bind a key to +use to be able to have
it work.
Now the code below is the same for both methods, but where
you put it is different. For method one, put it in g_cmds.c just after the
#define lines at the top. For method two, put it in p_client.c just after the
#defines at the top.
void button_use (edict_t *self, edict_t *other, edict_t *activator); void SCmd_use_button(edict_t *ent){ vec3_t forward,end; trace_t tr; AngleVectors (ent->client->v_angle, forward, NULL, NULL); VectorMA (ent->s.origin, 40, forward, end); tr = gi.trace (ent->s.origin, NULL, NULL, end, ent, MASK_SHOT); if (Q_stricmp(tr.ent->classname,"func_button")==0) button_use(tr.ent,ent,ent);}
At the moment the range of the button pressing is 40 quake
units, modify the 40 in the VectorMA to change the range of the press. The
button also must be directly in front of the player.
There we go, compile it and try it out :) If it doesn't
work, email me with the compilation errors that occur and I'll see what I can
do to help