Flashlight!

A simple flashlight that works! Yay!

I know there are alot of tutorials for flashlights out there, but this one doesn't require you to make some wierd ass sprite or do something that coders don't know how to do =)

This code is almost exactly the same as Dustin Ridenbaugh's tutorial on Qdevels, which I believe he based off the laser sight tutorial also on Qdevels.
Remember to add in the blue code and take out any pink code.

First we need to declare a new edict for our flashlight in g_local.h so add in the indicated line in the edict_s structure at the end of the file:

    // common data blocks
    moveinfo_t        moveinfo;
    monsterinfo_t    monsterinfo;

edict_t *flashlight;
};

Next we're going to add some code to p_client.c - open it and dump all of this code at the end:

/*
===============
FL_make
===============
*/
void FL_make(edict_t *self)
{
    vec3_t    start,forward,right,end;
    if ( self->flashlight )
    {
        G_FreeEdict(self->flashlight);
        self->flashlight = NULL;
        return;
    }
    AngleVectors (self->client->v_angle, forward, right, NULL);
    VectorSet(end,100 , 0, 0);
    G_ProjectSource (self->s.origin, end, forward, right, start);
    self->flashlight = G_Spawn ();
    self->flashlight->owner = self;
    self->flashlight->movetype = MOVETYPE_NOCLIP;
    self->flashlight->solid = SOLID_NOT;
    self->flashlight->classname = "flashlight";
    self->flashlight->s.modelindex = gi.modelindex ("models/objects/flash/tris.md2");
    self->flashlight->s.skinnum = 0;
    self->flashlight->s.effects |= 0x10000000;//transparency
    self->flashlight->s.effects |= EF_HYPERBLASTER;

    self->flashlight->think = FL_think;
    self->flashlight->nextthink = level.time + 0.1;
}

/*
===============
FL_make
===============
*/
void FL_think (edict_t *self)
{
    vec3_t start,end,endp,offset;
    vec3_t forward,right,up;
    trace_t tr;
    AngleVectors (self->owner->client->v_angle, forward, right, up);
    VectorSet(offset,0 , 0, self->owner->viewheight-10);
    G_ProjectSource (self->owner->s.origin, offset, forward, right, start);
    VectorMA(start,8192,forward,end);
    tr = gi.trace (start,NULL,NULL, end,self->owner,CONTENTS_SOLID|CONTENTS_MONSTER|CONTENTS_DEADMONSTER);
    if (tr.fraction != 1)
    {
        VectorMA(tr.endpos,-4,forward,endp);
        VectorCopy(endp,tr.endpos);
    }
    if ((tr.ent->svflags & SVF_MONSTER) || (tr.ent->client))
    {
        if ((tr.ent->takedamage) && (tr.ent != self->owner))
        {
            self->s.skinnum = 1;
        }
    }
    else
        self->s.skinnum = 0;

    vectoangles(tr.plane.normal,self->s.angles);
    VectorCopy(tr.endpos,self->s.origin);
    gi.linkentity (self);
    self->nextthink = level.time + 0.1;
}

    Now go into g_cmds.c and find the clientcommand section near the bottom.  Add in this new command:

    else if (Q_stricmp (cmd, "wave") == 0)
        Cmd_Wave_f (ent);

else if (Q_stricmp (cmd, "flashlight") == 0)
        FL_make (ent);

That's it!
You now have a fully function flashlight and you didn't have to make anything! (except the source, of course :)

Tutorial by Willi