p_weapon.c

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/*
Copyright (C) 1997-2001 Id Software, Inc.
 
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 
See the GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
*/
// g_weapon.c
 
#include "g_local.h"
#include "m_player.h"
 
 
static qboolean is_quad;
static byte     is_silenced;
 
 
void weapon_grenade_fire (edict_t *ent, qboolean held);
 
 
static void P_ProjectSource (gclient_t *client, vec3_t point, vec3_t distance, vec3_t forward, vec3_t right, vec3_t result)
{
    vec3_t  _distance;
 
    VectorCopy (distance, _distance);
    if (client->pers.hand == LEFT_HANDED)
        _distance[1] *= -1;
    else if (client->pers.hand == CENTER_HANDED)
        _distance[1] = 0;
    G_ProjectSource (point, _distance, forward, right, result);
}
 
 
/*
===============
PlayerNoise
 
Each player can have two noise objects associated with it:
a personal noise (jumping, pain, weapon firing), and a weapon
target noise (bullet wall impacts)
 
Monsters that don't directly see the player can move
to a noise in hopes of seeing the player from there.
===============
*/
void PlayerNoise(edict_t *who, vec3_t where, int type)
{
    edict_t     *noise;
 
    if (type == PNOISE_WEAPON)
    {
        if (who->client->silencer_shots)
        {
            who->client->silencer_shots--;
            return;
        }
    }
 
    if (deathmatch->value)
        return;
 
    if (who->flags & FL_NOTARGET)
        return;
 
 
    if (!who->mynoise)
    {
        noise = G_Spawn();
        noise->classname = "player_noise";
        VectorSet (noise->mins, -8, -8, -8);
        VectorSet (noise->maxs, 8, 8, 8);
        noise->owner = who;
        noise->svflags = SVF_NOCLIENT;
        who->mynoise = noise;
 
        noise = G_Spawn();
        noise->classname = "player_noise";
        VectorSet (noise->mins, -8, -8, -8);
        VectorSet (noise->maxs, 8, 8, 8);
        noise->owner = who;
        noise->svflags = SVF_NOCLIENT;
        who->mynoise2 = noise;
    }
 
    if (type == PNOISE_SELF || type == PNOISE_WEAPON)
    {
        noise = who->mynoise;
        level.sound_entity = noise;
        level.sound_entity_framenum = level.framenum;
    }
    else // type == PNOISE_IMPACT
    {
        noise = who->mynoise2;
        level.sound2_entity = noise;
        level.sound2_entity_framenum = level.framenum;
    }
 
    VectorCopy (where, noise->s.origin);
    VectorSubtract (where, noise->maxs, noise->absmin);
    VectorAdd (where, noise->maxs, noise->absmax);
    noise->teleport_time = level.time;
    gi.linkentity (noise);
}
 
 
qboolean Pickup_Weapon (edict_t *ent, edict_t *other)
{
    int         index;
    gitem_t     *ammo;
 
    index = ITEM_INDEX(ent->item);
 
    if ( ( ((int)(dmflags->value) & DF_WEAPONS_STAY) || coop->value) 
        && other->client->pers.inventory[index])
    {
        if (!(ent->spawnflags & (DROPPED_ITEM | DROPPED_PLAYER_ITEM) ) )
            return false;   // leave the weapon for others to pickup
    }
 
    other->client->pers.inventory[index]++;
 
    if (!(ent->spawnflags & DROPPED_ITEM) )
    {
        // give them some ammo with it
        ammo = FindItem (ent->item->ammo);
        if ( (int)dmflags->value & DF_INFINITE_AMMO )
            Add_Ammo (other, ammo, 1000);
        else
            Add_Ammo (other, ammo, ammo->quantity);
 
        if (! (ent->spawnflags & DROPPED_PLAYER_ITEM) )
        {
            if (deathmatch->value)
            {
                if ((int)(dmflags->value) & DF_WEAPONS_STAY)
                    ent->flags |= FL_RESPAWN;
                else
                    SetRespawn (ent, 30);
            }
            if (coop->value)
                ent->flags |= FL_RESPAWN;
        }
    }
 
    if (other->client->pers.weapon != ent->item && 
        (other->client->pers.inventory[index] == 1) &&
        ( !deathmatch->value || other->client->pers.weapon == FindItem("blaster") ) )
        other->client->newweapon = ent->item;
 
    return true;
}
 
 
/*
===============
ChangeWeapon
 
The old weapon has been dropped all the way, so make the new one
current
===============
*/
void ChangeWeapon (edict_t *ent)
{
    int i;
 
    if (ent->client->grenade_time)
    {
        ent->client->grenade_time = level.time;
        ent->client->weapon_sound = 0;
        weapon_grenade_fire (ent, false);
        ent->client->grenade_time = 0;
    }
 
    ent->client->pers.lastweapon = ent->client->pers.weapon;
    ent->client->pers.weapon = ent->client->newweapon;
    ent->client->newweapon = NULL;
    ent->client->machinegun_shots = 0;
 
    // set visible model
    if (ent->s.modelindex == 255) {
        if (ent->client->pers.weapon)
            i = ((ent->client->pers.weapon->weapmodel & 0xff) << 8);
        else
            i = 0;
        ent->s.skinnum = (ent - g_edicts - 1) | i;
    }
 
    if (ent->client->pers.weapon && ent->client->pers.weapon->ammo)
        ent->client->ammo_index = ITEM_INDEX(FindItem(ent->client->pers.weapon->ammo));
    else
        ent->client->ammo_index = 0;
 
    if (!ent->client->pers.weapon)
    {   // dead
        ent->client->ps.gunindex = 0;
        return;
    }
 
    ent->client->weaponstate = WEAPON_ACTIVATING;
    ent->client->ps.gunframe = 0;
    ent->client->ps.gunindex = gi.modelindex(ent->client->pers.weapon->view_model);
 
    ent->client->anim_priority = ANIM_PAIN;
    if(ent->client->ps.pmove.pm_flags & PMF_DUCKED)
    {
            ent->s.frame = FRAME_crpain1;
            ent->client->anim_end = FRAME_crpain4;
    }
    else
    {
            ent->s.frame = FRAME_pain301;
            ent->client->anim_end = FRAME_pain304;
            
    }
}
 
/*
=================
NoAmmoWeaponChange
=================
*/
void NoAmmoWeaponChange (edict_t *ent)
{
    if ( ent->client->pers.inventory[ITEM_INDEX(FindItem("slugs"))]
        &&  ent->client->pers.inventory[ITEM_INDEX(FindItem("railgun"))] )
    {
        ent->client->newweapon = FindItem ("railgun");
        return;
    }
    if ( ent->client->pers.inventory[ITEM_INDEX(FindItem("cells"))]
        &&  ent->client->pers.inventory[ITEM_INDEX(FindItem("hyperblaster"))] )
    {
        ent->client->newweapon = FindItem ("hyperblaster");
        return;
    }
    if ( ent->client->pers.inventory[ITEM_INDEX(FindItem("bullets"))]
        &&  ent->client->pers.inventory[ITEM_INDEX(FindItem("chaingun"))] )
    {
        ent->client->newweapon = FindItem ("chaingun");
        return;
    }
    if ( ent->client->pers.inventory[ITEM_INDEX(FindItem("bullets"))]
        &&  ent->client->pers.inventory[ITEM_INDEX(FindItem("machinegun"))] )
    {
        ent->client->newweapon = FindItem ("machinegun");
        return;
    }
    if ( ent->client->pers.inventory[ITEM_INDEX(FindItem("shells"))] > 1
        &&  ent->client->pers.inventory[ITEM_INDEX(FindItem("super shotgun"))] )
    {
        ent->client->newweapon = FindItem ("super shotgun");
        return;
    }
    if ( ent->client->pers.inventory[ITEM_INDEX(FindItem("shells"))]
        &&  ent->client->pers.inventory[ITEM_INDEX(FindItem("shotgun"))] )
    {
        ent->client->newweapon = FindItem ("shotgun");
        return;
    }
    ent->client->newweapon = FindItem ("blaster");
}
 
/*
=================
Think_Weapon
 
Called by ClientBeginServerFrame and ClientThink
=================
*/
void Think_Weapon (edict_t *ent)
{
    // if just died, put the weapon away
    if (ent->health < 1)
    {
        ent->client->newweapon = NULL;
        ChangeWeapon (ent);
    }
 
    // call active weapon think routine
    if (ent->client->pers.weapon && ent->client->pers.weapon->weaponthink)
    {
        is_quad = (ent->client->quad_framenum > level.framenum);
        if (ent->client->silencer_shots)
            is_silenced = MZ_SILENCED;
        else
            is_silenced = 0;
        ent->client->pers.weapon->weaponthink (ent);
    }
}
 
 
/*
================
Use_Weapon
 
Make the weapon ready if there is ammo
================
*/
void Use_Weapon (edict_t *ent, gitem_t *item)
{
    int         ammo_index;
    gitem_t     *ammo_item;
 
    // see if we're already using it
    if (item == ent->client->pers.weapon)
        return;
 
    if (item->ammo && !g_select_empty->value && !(item->flags & IT_AMMO))
    {
        ammo_item = FindItem(item->ammo);
        ammo_index = ITEM_INDEX(ammo_item);
 
        if (!ent->client->pers.inventory[ammo_index])
        {
            gi.cprintf (ent, PRINT_HIGH, "No %s for %s.\n", ammo_item->pickup_name, item->pickup_name);
            return;
        }
 
        if (ent->client->pers.inventory[ammo_index] < item->quantity)
        {
            gi.cprintf (ent, PRINT_HIGH, "Not enough %s for %s.\n", ammo_item->pickup_name, item->pickup_name);
            return;
        }
    }
 
    // change to this weapon when down
    ent->client->newweapon = item;
}
 
 
 
/*
================
Drop_Weapon
================
*/
void Drop_Weapon (edict_t *ent, gitem_t *item)
{
    int     index;
 
    if ((int)(dmflags->value) & DF_WEAPONS_STAY)
        return;
 
    index = ITEM_INDEX(item);
    // see if we're already using it
    if ( ((item == ent->client->pers.weapon) || (item == ent->client->newweapon))&& (ent->client->pers.inventory[index] == 1) )
    {
        gi.cprintf (ent, PRINT_HIGH, "Can't drop current weapon\n");
        return;
    }
 
    Drop_Item (ent, item);
    ent->client->pers.inventory[index]--;
}
 
 
/*
================
Weapon_Generic
 
A generic function to handle the basics of weapon thinking
================
*/
#define FRAME_FIRE_FIRST        (FRAME_ACTIVATE_LAST + 1)
#define FRAME_IDLE_FIRST        (FRAME_FIRE_LAST + 1)
#define FRAME_DEACTIVATE_FIRST  (FRAME_IDLE_LAST + 1)
 
void Weapon_Generic (edict_t *ent, int FRAME_ACTIVATE_LAST, int FRAME_FIRE_LAST, int FRAME_IDLE_LAST, int FRAME_DEACTIVATE_LAST, int *pause_frames, int *fire_frames, void (*fire)(edict_t *ent))
{
    int     n;
 
    if(ent->deadflag || ent->s.modelindex != 255) // VWep animations screw up corpses
    {
        return;
    }
 
    if (ent->client->weaponstate == WEAPON_DROPPING)
    {
        if (ent->client->ps.gunframe == FRAME_DEACTIVATE_LAST)
        {
            ChangeWeapon (ent);
            return;
        }
        else if ((FRAME_DEACTIVATE_LAST - ent->client->ps.gunframe) == 4)
        {
            ent->client->anim_priority = ANIM_REVERSE;
            if(ent->client->ps.pmove.pm_flags & PMF_DUCKED)
            {
                ent->s.frame = FRAME_crpain4+1;
                ent->client->anim_end = FRAME_crpain1;
            }
            else
            {
                ent->s.frame = FRAME_pain304+1;
                ent->client->anim_end = FRAME_pain301;
                
            }
        }
 
        ent->client->ps.gunframe++;
        return;
    }
 
    if (ent->client->weaponstate == WEAPON_ACTIVATING)
    {
        if (ent->client->ps.gunframe == FRAME_ACTIVATE_LAST)
        {
            ent->client->weaponstate = WEAPON_READY;
            ent->client->ps.gunframe = FRAME_IDLE_FIRST;
            return;
        }
 
        ent->client->ps.gunframe++;
        return;
    }
 
    if ((ent->client->newweapon) && (ent->client->weaponstate != WEAPON_FIRING))
    {
        ent->client->weaponstate = WEAPON_DROPPING;
        ent->client->ps.gunframe = FRAME_DEACTIVATE_FIRST;
 
        if ((FRAME_DEACTIVATE_LAST - FRAME_DEACTIVATE_FIRST) < 4)
        {
            ent->client->anim_priority = ANIM_REVERSE;
            if(ent->client->ps.pmove.pm_flags & PMF_DUCKED)
            {
                ent->s.frame = FRAME_crpain4+1;
                ent->client->anim_end = FRAME_crpain1;
            }
            else
            {
                ent->s.frame = FRAME_pain304+1;
                ent->client->anim_end = FRAME_pain301;
                
            }
        }
        return;
    }
 
    if (ent->client->weaponstate == WEAPON_READY)
    {
        if ( ((ent->client->latched_buttons|ent->client->buttons) & BUTTON_ATTACK) )
        {
            ent->client->latched_buttons &= ~BUTTON_ATTACK;
            if ((!ent->client->ammo_index) || 
                ( ent->client->pers.inventory[ent->client->ammo_index] >= ent->client->pers.weapon->quantity))
            {
                ent->client->ps.gunframe = FRAME_FIRE_FIRST;
                ent->client->weaponstate = WEAPON_FIRING;
 
                // start the animation
                ent->client->anim_priority = ANIM_ATTACK;
                if (ent->client->ps.pmove.pm_flags & PMF_DUCKED)
                {
                    ent->s.frame = FRAME_crattak1-1;
                    ent->client->anim_end = FRAME_crattak9;
                }
                else
                {
                    ent->s.frame = FRAME_attack1-1;
                    ent->client->anim_end = FRAME_attack8;
                }
            }
            else
            {
                if (level.time >= ent->pain_debounce_time)
                {
                    gi.sound(ent, CHAN_VOICE, gi.soundindex("weapons/noammo.wav"), 1, ATTN_NORM, 0);
                    ent->pain_debounce_time = level.time + 1;
                }
                NoAmmoWeaponChange (ent);
            }
        }
        else
        {
            if (ent->client->ps.gunframe == FRAME_IDLE_LAST)
            {
                ent->client->ps.gunframe = FRAME_IDLE_FIRST;
                return;
            }
 
            if (pause_frames)
            {
                for (n = 0; pause_frames[n]; n++)
                {
                    if (ent->client->ps.gunframe == pause_frames[n])
                    {
                        if (rand()&15)
                            return;
                    }
                }
            }
 
            ent->client->ps.gunframe++;
            return;
        }
    }
 
    if (ent->client->weaponstate == WEAPON_FIRING)
    {
        for (n = 0; fire_frames[n]; n++)
        {
            if (ent->client->ps.gunframe == fire_frames[n])
            {
                if (ent->client->quad_framenum > level.framenum)
                    gi.sound(ent, CHAN_ITEM, gi.soundindex("items/damage3.wav"), 1, ATTN_NORM, 0);
 
                fire (ent);
                break;
            }
        }
 
        if (!fire_frames[n])
            ent->client->ps.gunframe++;
 
        if (ent->client->ps.gunframe == FRAME_IDLE_FIRST+1)
            ent->client->weaponstate = WEAPON_READY;
    }
}
 
 
/*
======================================================================
 
GRENADE
 
======================================================================
*/
 
#define GRENADE_TIMER       3.0
#define GRENADE_MINSPEED    400
#define GRENADE_MAXSPEED    800
 
void weapon_grenade_fire (edict_t *ent, qboolean held)
{
    vec3_t  offset;
    vec3_t  forward, right;
    vec3_t  start;
    int     damage = 125;
    float   timer;
    int     speed;
    float   radius;
 
    radius = damage+40;
    if (is_quad)
        damage *= 4;
 
    VectorSet(offset, 8, 8, ent->viewheight-8);
    AngleVectors (ent->client->v_angle, forward, right, NULL);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
 
    timer = ent->client->grenade_time - level.time;
    speed = GRENADE_MINSPEED + (GRENADE_TIMER - timer) * ((GRENADE_MAXSPEED - GRENADE_MINSPEED) / GRENADE_TIMER);
    fire_grenade2 (ent, start, forward, damage, speed, timer, radius, held);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index]--;
 
    ent->client->grenade_time = level.time + 1.0;
 
    if(ent->deadflag || ent->s.modelindex != 255) // VWep animations screw up corpses
    {
        return;
    }
 
    if (ent->health <= 0)
        return;
 
    if (ent->client->ps.pmove.pm_flags & PMF_DUCKED)
    {
        ent->client->anim_priority = ANIM_ATTACK;
        ent->s.frame = FRAME_crattak1-1;
        ent->client->anim_end = FRAME_crattak3;
    }
    else
    {
        ent->client->anim_priority = ANIM_REVERSE;
        ent->s.frame = FRAME_wave08;
        ent->client->anim_end = FRAME_wave01;
    }
}
 
void Weapon_Grenade (edict_t *ent)
{
    if ((ent->client->newweapon) && (ent->client->weaponstate == WEAPON_READY))
    {
        ChangeWeapon (ent);
        return;
    }
 
    if (ent->client->weaponstate == WEAPON_ACTIVATING)
    {
        ent->client->weaponstate = WEAPON_READY;
        ent->client->ps.gunframe = 16;
        return;
    }
 
    if (ent->client->weaponstate == WEAPON_READY)
    {
        if ( ((ent->client->latched_buttons|ent->client->buttons) & BUTTON_ATTACK) )
        {
            ent->client->latched_buttons &= ~BUTTON_ATTACK;
            if (ent->client->pers.inventory[ent->client->ammo_index])
            {
                ent->client->ps.gunframe = 1;
                ent->client->weaponstate = WEAPON_FIRING;
                ent->client->grenade_time = 0;
            }
            else
            {
                if (level.time >= ent->pain_debounce_time)
                {
                    gi.sound(ent, CHAN_VOICE, gi.soundindex("weapons/noammo.wav"), 1, ATTN_NORM, 0);
                    ent->pain_debounce_time = level.time + 1;
                }
                NoAmmoWeaponChange (ent);
            }
            return;
        }
 
        if ((ent->client->ps.gunframe == 29) || (ent->client->ps.gunframe == 34) || (ent->client->ps.gunframe == 39) || (ent->client->ps.gunframe == 48))
        {
            if (rand()&15)
                return;
        }
 
        if (++ent->client->ps.gunframe > 48)
            ent->client->ps.gunframe = 16;
        return;
    }
 
    if (ent->client->weaponstate == WEAPON_FIRING)
    {
        if (ent->client->ps.gunframe == 5)
            gi.sound(ent, CHAN_WEAPON, gi.soundindex("weapons/hgrena1b.wav"), 1, ATTN_NORM, 0);
 
        if (ent->client->ps.gunframe == 11)
        {
            if (!ent->client->grenade_time)
            {
                ent->client->grenade_time = level.time + GRENADE_TIMER + 0.2;
                ent->client->weapon_sound = gi.soundindex("weapons/hgrenc1b.wav");
            }
 
            // they waited too long, detonate it in their hand
            if (!ent->client->grenade_blew_up && level.time >= ent->client->grenade_time)
            {
                ent->client->weapon_sound = 0;
                weapon_grenade_fire (ent, true);
                ent->client->grenade_blew_up = true;
            }
 
            if (ent->client->buttons & BUTTON_ATTACK)
                return;
 
            if (ent->client->grenade_blew_up)
            {
                if (level.time >= ent->client->grenade_time)
                {
                    ent->client->ps.gunframe = 15;
                    ent->client->grenade_blew_up = false;
                }
                else
                {
                    return;
                }
            }
        }
 
        if (ent->client->ps.gunframe == 12)
        {
            ent->client->weapon_sound = 0;
            weapon_grenade_fire (ent, false);
        }
 
        if ((ent->client->ps.gunframe == 15) && (level.time < ent->client->grenade_time))
            return;
 
        ent->client->ps.gunframe++;
 
        if (ent->client->ps.gunframe == 16)
        {
            ent->client->grenade_time = 0;
            ent->client->weaponstate = WEAPON_READY;
        }
    }
}
 
/*
======================================================================
 
GRENADE LAUNCHER
 
======================================================================
*/
 
void weapon_grenadelauncher_fire (edict_t *ent)
{
    vec3_t  offset;
    vec3_t  forward, right;
    vec3_t  start;
    int     damage = 120;
    float   radius;
 
    radius = damage+40;
    if (is_quad)
        damage *= 4;
 
    VectorSet(offset, 8, 8, ent->viewheight-8);
    AngleVectors (ent->client->v_angle, forward, right, NULL);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
 
    VectorScale (forward, -2, ent->client->kick_origin);
    ent->client->kick_angles[0] = -1;
 
    fire_grenade (ent, start, forward, damage, 600, 2.5, radius);
 
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte (MZ_GRENADE | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    ent->client->ps.gunframe++;
 
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index]--;
}
 
void Weapon_GrenadeLauncher (edict_t *ent)
{
    static int  pause_frames[]  = {34, 51, 59, 0};
    static int  fire_frames[]   = {6, 0};
 
    Weapon_Generic (ent, 5, 16, 59, 64, pause_frames, fire_frames, weapon_grenadelauncher_fire);
}
 
/*
======================================================================
 
ROCKET
 
======================================================================
*/
 
void Weapon_RocketLauncher_Fire (edict_t *ent)
{
    vec3_t  offset, start;
    vec3_t  forward, right;
    int     damage;
    float   damage_radius;
    int     radius_damage;
 
    damage = 100 + (int)(random() * 20.0);
    radius_damage = 120;
    damage_radius = 120;
    if (is_quad)
    {
        damage *= 4;
        radius_damage *= 4;
    }
 
    AngleVectors (ent->client->v_angle, forward, right, NULL);
 
    VectorScale (forward, -2, ent->client->kick_origin);
    ent->client->kick_angles[0] = -1;
 
    VectorSet(offset, 8, 8, ent->viewheight-8);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
    fire_rocket (ent, start, forward, damage, 650, damage_radius, radius_damage);
 
    // send muzzle flash
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte (MZ_ROCKET | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    ent->client->ps.gunframe++;
 
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index]--;
}
 
void Weapon_RocketLauncher (edict_t *ent)
{
    static int  pause_frames[]  = {25, 33, 42, 50, 0};
    static int  fire_frames[]   = {5, 0};
 
    Weapon_Generic (ent, 4, 12, 50, 54, pause_frames, fire_frames, Weapon_RocketLauncher_Fire);
}
 
 
/*
======================================================================
 
BLASTER / HYPERBLASTER
 
======================================================================
*/
 
void Blaster_Fire (edict_t *ent, vec3_t g_offset, int damage, qboolean hyper, int effect)
{
    vec3_t  forward, right;
    vec3_t  start;
    vec3_t  offset;
 
    if (is_quad)
        damage *= 4;
    AngleVectors (ent->client->v_angle, forward, right, NULL);
    VectorSet(offset, 24, 8, ent->viewheight-8);
    VectorAdd (offset, g_offset, offset);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
 
    VectorScale (forward, -2, ent->client->kick_origin);
    ent->client->kick_angles[0] = -1;
 
    fire_blaster (ent, start, forward, damage, 1000, effect, hyper);
 
    // send muzzle flash
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    if (hyper)
        gi.WriteByte (MZ_HYPERBLASTER | is_silenced);
    else
        gi.WriteByte (MZ_BLASTER | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    PlayerNoise(ent, start, PNOISE_WEAPON);
}
 
 
void Weapon_Blaster_Fire (edict_t *ent)
{
    int     damage;
 
    if (deathmatch->value)
        damage = 15;
    else
        damage = 10;
    Blaster_Fire (ent, vec3_origin, damage, false, EF_BLASTER);
    ent->client->ps.gunframe++;
}
 
void Weapon_Blaster (edict_t *ent)
{
    static int  pause_frames[]  = {19, 32, 0};
    static int  fire_frames[]   = {5, 0};
 
    Weapon_Generic (ent, 4, 8, 52, 55, pause_frames, fire_frames, Weapon_Blaster_Fire);
}
 
 
void Weapon_HyperBlaster_Fire (edict_t *ent)
{
    float   rotation;
    vec3_t  offset;
    int     effect;
    int     damage;
 
    ent->client->weapon_sound = gi.soundindex("weapons/hyprbl1a.wav");
 
    if (!(ent->client->buttons & BUTTON_ATTACK))
    {
        ent->client->ps.gunframe++;
    }
    else
    {
        if (! ent->client->pers.inventory[ent->client->ammo_index] )
        {
            if (level.time >= ent->pain_debounce_time)
            {
                gi.sound(ent, CHAN_VOICE, gi.soundindex("weapons/noammo.wav"), 1, ATTN_NORM, 0);
                ent->pain_debounce_time = level.time + 1;
            }
            NoAmmoWeaponChange (ent);
        }
        else
        {
            rotation = (ent->client->ps.gunframe - 5) * 2*M_PI/6;
            offset[0] = -4 * sin(rotation);
            offset[1] = 0;
            offset[2] = 4 * cos(rotation);
 
            if ((ent->client->ps.gunframe == 6) || (ent->client->ps.gunframe == 9))
                effect = EF_HYPERBLASTER;
            else
                effect = 0;
            if (deathmatch->value)
                damage = 15;
            else
                damage = 20;
            Blaster_Fire (ent, offset, damage, true, effect);
            if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
                ent->client->pers.inventory[ent->client->ammo_index]--;
 
            ent->client->anim_priority = ANIM_ATTACK;
            if (ent->client->ps.pmove.pm_flags & PMF_DUCKED)
            {
                ent->s.frame = FRAME_crattak1 - 1;
                ent->client->anim_end = FRAME_crattak9;
            }
            else
            {
                ent->s.frame = FRAME_attack1 - 1;
                ent->client->anim_end = FRAME_attack8;
            }
        }
 
        ent->client->ps.gunframe++;
        if (ent->client->ps.gunframe == 12 && ent->client->pers.inventory[ent->client->ammo_index])
            ent->client->ps.gunframe = 6;
    }
 
    if (ent->client->ps.gunframe == 12)
    {
        gi.sound(ent, CHAN_AUTO, gi.soundindex("weapons/hyprbd1a.wav"), 1, ATTN_NORM, 0);
        ent->client->weapon_sound = 0;
    }
 
}
 
void Weapon_HyperBlaster (edict_t *ent)
{
    static int  pause_frames[]  = {0};
    static int  fire_frames[]   = {6, 7, 8, 9, 10, 11, 0};
 
    Weapon_Generic (ent, 5, 20, 49, 53, pause_frames, fire_frames, Weapon_HyperBlaster_Fire);
}
 
/*
======================================================================
 
MACHINEGUN / CHAINGUN
 
======================================================================
*/
 
void Machinegun_Fire (edict_t *ent)
{
    int i;
    vec3_t      start;
    vec3_t      forward, right;
    vec3_t      angles;
    int         damage = 8;
    int         kick = 2;
    vec3_t      offset;
 
    if (!(ent->client->buttons & BUTTON_ATTACK))
    {
        ent->client->machinegun_shots = 0;
        ent->client->ps.gunframe++;
        return;
    }
 
    if (ent->client->ps.gunframe == 5)
        ent->client->ps.gunframe = 4;
    else
        ent->client->ps.gunframe = 5;
 
    if (ent->client->pers.inventory[ent->client->ammo_index] < 1)
    {
        ent->client->ps.gunframe = 6;
        if (level.time >= ent->pain_debounce_time)
        {
            gi.sound(ent, CHAN_VOICE, gi.soundindex("weapons/noammo.wav"), 1, ATTN_NORM, 0);
            ent->pain_debounce_time = level.time + 1;
        }
        NoAmmoWeaponChange (ent);
        return;
    }
 
    if (is_quad)
    {
        damage *= 4;
        kick *= 4;
    }
 
    for (i=1 ; i<3 ; i++)
    {
        ent->client->kick_origin[i] = crandom() * 0.35;
        ent->client->kick_angles[i] = crandom() * 0.7;
    }
    ent->client->kick_origin[0] = crandom() * 0.35;
    ent->client->kick_angles[0] = ent->client->machinegun_shots * -1.5;
 
    // raise the gun as it is firing
    if (!deathmatch->value)
    {
        ent->client->machinegun_shots++;
        if (ent->client->machinegun_shots > 9)
            ent->client->machinegun_shots = 9;
    }
 
    // get start / end positions
    VectorAdd (ent->client->v_angle, ent->client->kick_angles, angles);
    AngleVectors (angles, forward, right, NULL);
    VectorSet(offset, 0, 8, ent->viewheight-8);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
    fire_bullet (ent, start, forward, damage, kick, DEFAULT_BULLET_HSPREAD, DEFAULT_BULLET_VSPREAD, MOD_MACHINEGUN);
 
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte (MZ_MACHINEGUN | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index]--;
 
    ent->client->anim_priority = ANIM_ATTACK;
    if (ent->client->ps.pmove.pm_flags & PMF_DUCKED)
    {
        ent->s.frame = FRAME_crattak1 - (int) (random()+0.25);
        ent->client->anim_end = FRAME_crattak9;
    }
    else
    {
        ent->s.frame = FRAME_attack1 - (int) (random()+0.25);
        ent->client->anim_end = FRAME_attack8;
    }
}
 
void Weapon_Machinegun (edict_t *ent)
{
    static int  pause_frames[]  = {23, 45, 0};
    static int  fire_frames[]   = {4, 5, 0};
 
    Weapon_Generic (ent, 3, 5, 45, 49, pause_frames, fire_frames, Machinegun_Fire);
}
 
void Chaingun_Fire (edict_t *ent)
{
    int         i;
    int         shots;
    vec3_t      start;
    vec3_t      forward, right, up;
    float       r, u;
    vec3_t      offset;
    int         damage;
    int         kick = 2;
 
    if (deathmatch->value)
        damage = 6;
    else
        damage = 8;
 
    if (ent->client->ps.gunframe == 5)
        gi.sound(ent, CHAN_AUTO, gi.soundindex("weapons/chngnu1a.wav"), 1, ATTN_IDLE, 0);
 
    if ((ent->client->ps.gunframe == 14) && !(ent->client->buttons & BUTTON_ATTACK))
    {
        ent->client->ps.gunframe = 32;
        ent->client->weapon_sound = 0;
        return;
    }
    else if ((ent->client->ps.gunframe == 21) && (ent->client->buttons & BUTTON_ATTACK)
        && ent->client->pers.inventory[ent->client->ammo_index])
    {
        ent->client->ps.gunframe = 15;
    }
    else
    {
        ent->client->ps.gunframe++;
    }
 
    if (ent->client->ps.gunframe == 22)
    {
        ent->client->weapon_sound = 0;
        gi.sound(ent, CHAN_AUTO, gi.soundindex("weapons/chngnd1a.wav"), 1, ATTN_IDLE, 0);
    }
    else
    {
        ent->client->weapon_sound = gi.soundindex("weapons/chngnl1a.wav");
    }
 
    ent->client->anim_priority = ANIM_ATTACK;
    if (ent->client->ps.pmove.pm_flags & PMF_DUCKED)
    {
        ent->s.frame = FRAME_crattak1 - (ent->client->ps.gunframe & 1);
        ent->client->anim_end = FRAME_crattak9;
    }
    else
    {
        ent->s.frame = FRAME_attack1 - (ent->client->ps.gunframe & 1);
        ent->client->anim_end = FRAME_attack8;
    }
 
    if (ent->client->ps.gunframe <= 9)
        shots = 1;
    else if (ent->client->ps.gunframe <= 14)
    {
        if (ent->client->buttons & BUTTON_ATTACK)
            shots = 2;
        else
            shots = 1;
    }
    else
        shots = 3;
 
    if (ent->client->pers.inventory[ent->client->ammo_index] < shots)
        shots = ent->client->pers.inventory[ent->client->ammo_index];
 
    if (!shots)
    {
        if (level.time >= ent->pain_debounce_time)
        {
            gi.sound(ent, CHAN_VOICE, gi.soundindex("weapons/noammo.wav"), 1, ATTN_NORM, 0);
            ent->pain_debounce_time = level.time + 1;
        }
        NoAmmoWeaponChange (ent);
        return;
    }
 
    if (is_quad)
    {
        damage *= 4;
        kick *= 4;
    }
 
    for (i=0 ; i<3 ; i++)
    {
        ent->client->kick_origin[i] = crandom() * 0.35;
        ent->client->kick_angles[i] = crandom() * 0.7;
    }
 
    for (i=0 ; i<shots ; i++)
    {
        // get start / end positions
        AngleVectors (ent->client->v_angle, forward, right, up);
        r = 7 + crandom()*4;
        u = crandom()*4;
        VectorSet(offset, 0, r, u + ent->viewheight-8);
        P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
 
        fire_bullet (ent, start, forward, damage, kick, DEFAULT_BULLET_HSPREAD, DEFAULT_BULLET_VSPREAD, MOD_CHAINGUN);
    }
 
    // send muzzle flash
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte ((MZ_CHAINGUN1 + shots - 1) | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index] -= shots;
}
 
 
void Weapon_Chaingun (edict_t *ent)
{
    static int  pause_frames[]  = {38, 43, 51, 61, 0};
    static int  fire_frames[]   = {5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 0};
 
    Weapon_Generic (ent, 4, 31, 61, 64, pause_frames, fire_frames, Chaingun_Fire);
}
 
 
/*
======================================================================
 
SHOTGUN / SUPERSHOTGUN
 
======================================================================
*/
 
void weapon_shotgun_fire (edict_t *ent)
{
    vec3_t      start;
    vec3_t      forward, right;
    vec3_t      offset;
    int         damage = 4;
    int         kick = 8;
 
    if (ent->client->ps.gunframe == 9)
    {
        ent->client->ps.gunframe++;
        return;
    }
 
    AngleVectors (ent->client->v_angle, forward, right, NULL);
 
    VectorScale (forward, -2, ent->client->kick_origin);
    ent->client->kick_angles[0] = -2;
 
    VectorSet(offset, 0, 8,  ent->viewheight-8);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
 
    if (is_quad)
    {
        damage *= 4;
        kick *= 4;
    }
 
    if (deathmatch->value)
        fire_shotgun (ent, start, forward, damage, kick, 500, 500, DEFAULT_DEATHMATCH_SHOTGUN_COUNT, MOD_SHOTGUN);
    else
        fire_shotgun (ent, start, forward, damage, kick, 500, 500, DEFAULT_SHOTGUN_COUNT, MOD_SHOTGUN);
 
    // send muzzle flash
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte (MZ_SHOTGUN | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    ent->client->ps.gunframe++;
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index]--;
}
 
void Weapon_Shotgun (edict_t *ent)
{
    static int  pause_frames[]  = {22, 28, 34, 0};
    static int  fire_frames[]   = {8, 9, 0};
 
    Weapon_Generic (ent, 7, 18, 36, 39, pause_frames, fire_frames, weapon_shotgun_fire);
}
 
 
void weapon_supershotgun_fire (edict_t *ent)
{
    vec3_t      start;
    vec3_t      forward, right;
    vec3_t      offset;
    vec3_t      v;
    int         damage = 6;
    int         kick = 12;
 
    AngleVectors (ent->client->v_angle, forward, right, NULL);
 
    VectorScale (forward, -2, ent->client->kick_origin);
    ent->client->kick_angles[0] = -2;
 
    VectorSet(offset, 0, 8,  ent->viewheight-8);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
 
    if (is_quad)
    {
        damage *= 4;
        kick *= 4;
    }
 
    v[PITCH] = ent->client->v_angle[PITCH];
    v[YAW]   = ent->client->v_angle[YAW] - 5;
    v[ROLL]  = ent->client->v_angle[ROLL];
    AngleVectors (v, forward, NULL, NULL);
    fire_shotgun (ent, start, forward, damage, kick, DEFAULT_SHOTGUN_HSPREAD, DEFAULT_SHOTGUN_VSPREAD, DEFAULT_SSHOTGUN_COUNT/2, MOD_SSHOTGUN);
    v[YAW]   = ent->client->v_angle[YAW] + 5;
    AngleVectors (v, forward, NULL, NULL);
    fire_shotgun (ent, start, forward, damage, kick, DEFAULT_SHOTGUN_HSPREAD, DEFAULT_SHOTGUN_VSPREAD, DEFAULT_SSHOTGUN_COUNT/2, MOD_SSHOTGUN);
 
    // send muzzle flash
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte (MZ_SSHOTGUN | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    ent->client->ps.gunframe++;
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index] -= 2;
}
 
void Weapon_SuperShotgun (edict_t *ent)
{
    static int  pause_frames[]  = {29, 42, 57, 0};
    static int  fire_frames[]   = {7, 0};
 
    Weapon_Generic (ent, 6, 17, 57, 61, pause_frames, fire_frames, weapon_supershotgun_fire);
}
 
 
 
/*
======================================================================
 
RAILGUN
 
======================================================================
*/
 
void weapon_railgun_fire (edict_t *ent)
{
    vec3_t      start;
    vec3_t      forward, right;
    vec3_t      offset;
    int         damage;
    int         kick;
 
    if (deathmatch->value)
    {   // normal damage is too extreme in dm
        damage = 100;
        kick = 200;
    }
    else
    {
        damage = 150;
        kick = 250;
    }
 
    if (is_quad)
    {
        damage *= 4;
        kick *= 4;
    }
 
    AngleVectors (ent->client->v_angle, forward, right, NULL);
 
    VectorScale (forward, -3, ent->client->kick_origin);
    ent->client->kick_angles[0] = -3;
 
    VectorSet(offset, 0, 7,  ent->viewheight-8);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
    fire_rail (ent, start, forward, damage, kick);
 
    // send muzzle flash
    gi.WriteByte (svc_muzzleflash);
    gi.WriteShort (ent-g_edicts);
    gi.WriteByte (MZ_RAILGUN | is_silenced);
    gi.multicast (ent->s.origin, MULTICAST_PVS);
 
    ent->client->ps.gunframe++;
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index]--;
}
 
 
void Weapon_Railgun (edict_t *ent)
{
    static int  pause_frames[]  = {56, 0};
    static int  fire_frames[]   = {4, 0};
 
    Weapon_Generic (ent, 3, 18, 56, 61, pause_frames, fire_frames, weapon_railgun_fire);
}
 
 
/*
======================================================================
 
BFG10K
 
======================================================================
*/
 
void weapon_bfg_fire (edict_t *ent)
{
    vec3_t  offset, start;
    vec3_t  forward, right;
    int     damage;
    float   damage_radius = 1000;
 
    if (deathmatch->value)
        damage = 200;
    else
        damage = 500;
 
    if (ent->client->ps.gunframe == 9)
    {
        // send muzzle flash
        gi.WriteByte (svc_muzzleflash);
        gi.WriteShort (ent-g_edicts);
        gi.WriteByte (MZ_BFG | is_silenced);
        gi.multicast (ent->s.origin, MULTICAST_PVS);
 
        ent->client->ps.gunframe++;
 
        PlayerNoise(ent, start, PNOISE_WEAPON);
        return;
    }
 
    // cells can go down during windup (from power armor hits), so
    // check again and abort firing if we don't have enough now
    if (ent->client->pers.inventory[ent->client->ammo_index] < 50)
    {
        ent->client->ps.gunframe++;
        return;
    }
 
    if (is_quad)
        damage *= 4;
 
    AngleVectors (ent->client->v_angle, forward, right, NULL);
 
    VectorScale (forward, -2, ent->client->kick_origin);
 
    // make a big pitch kick with an inverse fall
    ent->client->v_dmg_pitch = -40;
    ent->client->v_dmg_roll = crandom()*8;
    ent->client->v_dmg_time = level.time + DAMAGE_TIME;
 
    VectorSet(offset, 8, 8, ent->viewheight-8);
    P_ProjectSource (ent->client, ent->s.origin, offset, forward, right, start);
    fire_bfg (ent, start, forward, damage, 400, damage_radius);
 
    ent->client->ps.gunframe++;
 
    PlayerNoise(ent, start, PNOISE_WEAPON);
 
    if (! ( (int)dmflags->value & DF_INFINITE_AMMO ) )
        ent->client->pers.inventory[ent->client->ammo_index] -= 50;
}
 
void Weapon_BFG (edict_t *ent)
{
    static int  pause_frames[]  = {39, 45, 50, 55, 0};
    static int  fire_frames[]   = {9, 17, 0};
 
    Weapon_Generic (ent, 8, 32, 55, 58, pause_frames, fire_frames, weapon_bfg_fire);
}
 
 
//======================================================================