m_parasite.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.
 
*/
/*
==============================================================================
 
parasite
 
==============================================================================
*/
 
#include "g_local.h"
#include "m_parasite.h"
 
 
static int  sound_pain1;
static int  sound_pain2;
static int  sound_die;
static int  sound_launch;
static int  sound_impact;
static int  sound_suck;
static int  sound_reelin;
static int  sound_sight;
static int  sound_tap;
static int  sound_scratch;
static int  sound_search;
 
 
void parasite_stand (edict_t *self);
void parasite_start_run (edict_t *self);
void parasite_run (edict_t *self);
void parasite_walk (edict_t *self);
void parasite_start_walk (edict_t *self);
void parasite_end_fidget (edict_t *self);
void parasite_do_fidget (edict_t *self);
void parasite_refidget (edict_t *self);
 
 
void parasite_launch (edict_t *self)
{
    gi.sound (self, CHAN_WEAPON, sound_launch, 1, ATTN_NORM, 0);
}
 
void parasite_reel_in (edict_t *self)
{
    gi.sound (self, CHAN_WEAPON, sound_reelin, 1, ATTN_NORM, 0);
}
 
void parasite_sight (edict_t *self, edict_t *other)
{
    gi.sound (self, CHAN_WEAPON, sound_sight, 1, ATTN_NORM, 0);
}
 
void parasite_tap (edict_t *self)
{
    gi.sound (self, CHAN_WEAPON, sound_tap, 1, ATTN_IDLE, 0);
}
 
void parasite_scratch (edict_t *self)
{
    gi.sound (self, CHAN_WEAPON, sound_scratch, 1, ATTN_IDLE, 0);
}
 
void parasite_search (edict_t *self)
{
    gi.sound (self, CHAN_WEAPON, sound_search, 1, ATTN_IDLE, 0);
}
 
 
mframe_t parasite_frames_start_fidget [] =
{
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL}
};
mmove_t parasite_move_start_fidget = {FRAME_stand18, FRAME_stand21, parasite_frames_start_fidget, parasite_do_fidget};
 
mframe_t parasite_frames_fidget [] =
{   
    {ai_stand, 0, parasite_scratch},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_scratch},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL}
};
mmove_t parasite_move_fidget = {FRAME_stand22, FRAME_stand27, parasite_frames_fidget, parasite_refidget};
 
mframe_t parasite_frames_end_fidget [] =
{
    {ai_stand, 0, parasite_scratch},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL}
};
mmove_t parasite_move_end_fidget = {FRAME_stand28, FRAME_stand35, parasite_frames_end_fidget, parasite_stand};
 
void parasite_end_fidget (edict_t *self)
{
    self->monsterinfo.currentmove = &parasite_move_end_fidget;
}
 
void parasite_do_fidget (edict_t *self)
{
    self->monsterinfo.currentmove = &parasite_move_fidget;
}
 
void parasite_refidget (edict_t *self)
{ 
    if (random() <= 0.8)
        self->monsterinfo.currentmove = &parasite_move_fidget;
    else
        self->monsterinfo.currentmove = &parasite_move_end_fidget;
}
 
void parasite_idle (edict_t *self)
{ 
    self->monsterinfo.currentmove = &parasite_move_start_fidget;
}
 
 
mframe_t parasite_frames_stand [] =
{
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_tap},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_tap},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_tap},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_tap},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_tap},
    {ai_stand, 0, NULL},
    {ai_stand, 0, parasite_tap}
};
mmove_t parasite_move_stand = {FRAME_stand01, FRAME_stand17, parasite_frames_stand, parasite_stand};
 
void parasite_stand (edict_t *self)
{
    self->monsterinfo.currentmove = &parasite_move_stand;
}
 
 
mframe_t parasite_frames_run [] =
{
    {ai_run, 30, NULL},
    {ai_run, 30, NULL},
    {ai_run, 22, NULL},
    {ai_run, 19, NULL},
    {ai_run, 24, NULL},
    {ai_run, 28, NULL},
    {ai_run, 25, NULL}
};
mmove_t parasite_move_run = {FRAME_run03, FRAME_run09, parasite_frames_run, NULL};
 
mframe_t parasite_frames_start_run [] =
{
    {ai_run, 0, NULL},
    {ai_run, 30, NULL},
};
mmove_t parasite_move_start_run = {FRAME_run01, FRAME_run02, parasite_frames_start_run, parasite_run};
 
mframe_t parasite_frames_stop_run [] =
{   
    {ai_run, 20, NULL},
    {ai_run, 20,    NULL},
    {ai_run, 12, NULL},
    {ai_run, 10, NULL},
    {ai_run, 0,  NULL},
    {ai_run, 0,  NULL}
};
mmove_t parasite_move_stop_run = {FRAME_run10, FRAME_run15, parasite_frames_stop_run, NULL};
 
void parasite_start_run (edict_t *self)
{   
    if (self->monsterinfo.aiflags & AI_STAND_GROUND)
        self->monsterinfo.currentmove = &parasite_move_stand;
    else
        self->monsterinfo.currentmove = &parasite_move_start_run;
}
 
void parasite_run (edict_t *self)
{
    if (self->monsterinfo.aiflags & AI_STAND_GROUND)
        self->monsterinfo.currentmove = &parasite_move_stand;
    else
        self->monsterinfo.currentmove = &parasite_move_run;
}
 
 
mframe_t parasite_frames_walk [] =
{
    {ai_walk, 30, NULL},
    {ai_walk, 30, NULL},
    {ai_walk, 22, NULL},
    {ai_walk, 19, NULL},
    {ai_walk, 24, NULL},
    {ai_walk, 28, NULL},
    {ai_walk, 25, NULL}
};
mmove_t parasite_move_walk = {FRAME_run03, FRAME_run09, parasite_frames_walk, parasite_walk};
 
mframe_t parasite_frames_start_walk [] =
{
    {ai_walk, 0,    NULL},
    {ai_walk, 30, parasite_walk}
};
mmove_t parasite_move_start_walk = {FRAME_run01, FRAME_run02, parasite_frames_start_walk, NULL};
 
mframe_t parasite_frames_stop_walk [] =
{   
    {ai_walk, 20, NULL},
    {ai_walk, 20,   NULL},
    {ai_walk, 12, NULL},
    {ai_walk, 10, NULL},
    {ai_walk, 0,  NULL},
    {ai_walk, 0,  NULL}
};
mmove_t parasite_move_stop_walk = {FRAME_run10, FRAME_run15, parasite_frames_stop_walk, NULL};
 
void parasite_start_walk (edict_t *self)
{   
    self->monsterinfo.currentmove = &parasite_move_start_walk;
}
 
void parasite_walk (edict_t *self)
{
    self->monsterinfo.currentmove = &parasite_move_walk;
}
 
 
mframe_t parasite_frames_pain1 [] =
{
    {ai_move, 0, NULL},
    {ai_move, 0, NULL},
    {ai_move, 0,    NULL},
    {ai_move, 0,    NULL},
    {ai_move, 0,    NULL},
    {ai_move, 0,    NULL},
    {ai_move, 6,    NULL},
    {ai_move, 16, NULL},
    {ai_move, -6, NULL},
    {ai_move, -7, NULL},
    {ai_move, 0, NULL}
};
mmove_t parasite_move_pain1 = {FRAME_pain101, FRAME_pain111, parasite_frames_pain1, parasite_start_run};
 
void parasite_pain (edict_t *self, edict_t *other, float kick, int damage)
{
    if (self->health < (self->max_health / 2))
        self->s.skinnum = 1;
 
    if (level.time < self->pain_debounce_time)
        return;
 
    self->pain_debounce_time = level.time + 3;
 
    if (skill->value == 3)
        return;     // no pain anims in nightmare
 
    if (random() < 0.5)
        gi.sound (self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
    else
        gi.sound (self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
 
    self->monsterinfo.currentmove = &parasite_move_pain1;
}
 
 
static qboolean parasite_drain_attack_ok (vec3_t start, vec3_t end)
{
    vec3_t  dir, angles;
 
    // check for max distance
    VectorSubtract (start, end, dir);
    if (VectorLength(dir) > 256)
        return false;
 
    // check for min/max pitch
    vectoangles (dir, angles);
    if (angles[0] < -180)
        angles[0] += 360;
    if (fabs(angles[0]) > 30)
        return false;
 
    return true;
}
 
void parasite_drain_attack (edict_t *self)
{
    vec3_t  offset, start, f, r, end, dir;
    trace_t tr;
    int damage;
 
    AngleVectors (self->s.angles, f, r, NULL);
    VectorSet (offset, 24, 0, 6);
    G_ProjectSource (self->s.origin, offset, f, r, start);
 
    VectorCopy (self->enemy->s.origin, end);
    if (!parasite_drain_attack_ok(start, end))
    {
        end[2] = self->enemy->s.origin[2] + self->enemy->maxs[2] - 8;
        if (!parasite_drain_attack_ok(start, end))
        {
            end[2] = self->enemy->s.origin[2] + self->enemy->mins[2] + 8;
            if (!parasite_drain_attack_ok(start, end))
                return;
        }
    }
    VectorCopy (self->enemy->s.origin, end);
 
    tr = gi.trace (start, NULL, NULL, end, self, MASK_SHOT);
    if (tr.ent != self->enemy)
        return;
 
    if (self->s.frame == FRAME_drain03)
    {
        damage = 5;
        gi.sound (self->enemy, CHAN_AUTO, sound_impact, 1, ATTN_NORM, 0);
    }
    else
    {
        if (self->s.frame == FRAME_drain04)
            gi.sound (self, CHAN_WEAPON, sound_suck, 1, ATTN_NORM, 0);
        damage = 2;
    }
 
    gi.WriteByte (svc_temp_entity);
    gi.WriteByte (TE_PARASITE_ATTACK);
    gi.WriteShort (self - g_edicts);
    gi.WritePosition (start);
    gi.WritePosition (end);
    gi.multicast (self->s.origin, MULTICAST_PVS);
 
    VectorSubtract (start, end, dir);
    T_Damage (self->enemy, self, self, dir, self->enemy->s.origin, vec3_origin, damage, 0, DAMAGE_NO_KNOCKBACK, MOD_UNKNOWN);
}
 
mframe_t parasite_frames_drain [] =
{
    {ai_charge, 0,  parasite_launch},
    {ai_charge, 0,  NULL},
    {ai_charge, 15, parasite_drain_attack},         // Target hits
    {ai_charge, 0,  parasite_drain_attack},         // drain
    {ai_charge, 0,  parasite_drain_attack},         // drain
    {ai_charge, 0,  parasite_drain_attack},         // drain
    {ai_charge, 0,  parasite_drain_attack},         // drain
    {ai_charge, -2,  parasite_drain_attack},            // drain
    {ai_charge, -2, parasite_drain_attack},         // drain
    {ai_charge, -3, parasite_drain_attack},         // drain
    {ai_charge, -2, parasite_drain_attack},         // drain
    {ai_charge, 0,  parasite_drain_attack},         // drain
    {ai_charge, -1,  parasite_drain_attack},            // drain
    {ai_charge, 0,  parasite_reel_in},              // let go
    {ai_charge, -2, NULL},
    {ai_charge, -2, NULL},
    {ai_charge, -3, NULL},
    {ai_charge, 0,  NULL}
};
mmove_t parasite_move_drain = {FRAME_drain01, FRAME_drain18, parasite_frames_drain, parasite_start_run};
 
 
mframe_t parasite_frames_break [] =
{
    {ai_charge, 0,  NULL},
    {ai_charge, -3, NULL},
    {ai_charge, 1,  NULL},
    {ai_charge, 2,  NULL},
    {ai_charge, -3, NULL},
    {ai_charge, 1,  NULL},
    {ai_charge, 1,  NULL},
    {ai_charge, 3,  NULL},
    {ai_charge, 0,  NULL},
    {ai_charge, -18,    NULL},
    {ai_charge, 3,  NULL},
    {ai_charge, 9,  NULL},
    {ai_charge, 6,  NULL},
    {ai_charge, 0,  NULL},
    {ai_charge, -18,    NULL},
    {ai_charge, 0,  NULL},
    {ai_charge, 8,  NULL},
    {ai_charge, 9,  NULL},
    {ai_charge, 0,  NULL},
    {ai_charge, -18,    NULL},
    {ai_charge, 0,  NULL},
    {ai_charge, 0,  NULL},      // airborne
    {ai_charge, 0,  NULL},      // airborne
    {ai_charge, 0,  NULL},      // slides
    {ai_charge, 0,  NULL},      // slides
    {ai_charge, 0,  NULL},      // slides
    {ai_charge, 0,  NULL},      // slides
    {ai_charge, 4,  NULL},
    {ai_charge, 11, NULL},      
    {ai_charge, -2, NULL},
    {ai_charge, -5, NULL},
    {ai_charge, 1,  NULL}
};
mmove_t parasite_move_break = {FRAME_break01, FRAME_break32, parasite_frames_break, parasite_start_run};
 
/*
=== 
Break Stuff Ends
===
*/
 
void parasite_attack (edict_t *self)
{
//  if (random() <= 0.2)
//      self->monsterinfo.currentmove = &parasite_move_break;
//  else
        self->monsterinfo.currentmove = &parasite_move_drain;
}
 
 
 
/*
===
Death Stuff Starts
===
*/
 
void parasite_dead (edict_t *self)
{
    VectorSet (self->mins, -16, -16, -24);
    VectorSet (self->maxs, 16, 16, -8);
    self->movetype = MOVETYPE_TOSS;
    self->svflags |= SVF_DEADMONSTER;
    self->nextthink = 0;
    gi.linkentity (self);
}
 
mframe_t parasite_frames_death [] =
{
    {ai_move, 0,     NULL},
    {ai_move, 0,     NULL},
    {ai_move, 0,     NULL},
    {ai_move, 0,     NULL},
    {ai_move, 0,     NULL},
    {ai_move, 0,     NULL},
    {ai_move, 0,     NULL}
};
mmove_t parasite_move_death = {FRAME_death101, FRAME_death107, parasite_frames_death, parasite_dead};
 
void parasite_die (edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, vec3_t point)
{
    int     n;
 
// check for gib
    if (self->health <= self->gib_health)
    {
        gi.sound (self, CHAN_VOICE, gi.soundindex ("misc/udeath.wav"), 1, ATTN_NORM, 0);
        for (n= 0; n < 2; n++)
            ThrowGib (self, "models/objects/gibs/bone/tris.md2", damage, GIB_ORGANIC);
        for (n= 0; n < 4; n++)
            ThrowGib (self, "models/objects/gibs/sm_meat/tris.md2", damage, GIB_ORGANIC);
        ThrowHead (self, "models/objects/gibs/head2/tris.md2", damage, GIB_ORGANIC);
        self->deadflag = DEAD_DEAD;
        return;
    }
 
    if (self->deadflag == DEAD_DEAD)
        return;
 
// regular death
    gi.sound (self, CHAN_VOICE, sound_die, 1, ATTN_NORM, 0);
    self->deadflag = DEAD_DEAD;
    self->takedamage = DAMAGE_YES;
    self->monsterinfo.currentmove = &parasite_move_death;
}
 
/*
===
End Death Stuff
===
*/
 
/*QUAKED monster_parasite (1 .5 0) (-16 -16 -24) (16 16 32) Ambush Trigger_Spawn Sight
*/
void SP_monster_parasite (edict_t *self)
{
    if (deathmatch->value)
    {
        G_FreeEdict (self);
        return;
    }
 
    sound_pain1 = gi.soundindex ("parasite/parpain1.wav");  
    sound_pain2 = gi.soundindex ("parasite/parpain2.wav");  
    sound_die = gi.soundindex ("parasite/pardeth1.wav");    
    sound_launch = gi.soundindex("parasite/paratck1.wav");
    sound_impact = gi.soundindex("parasite/paratck2.wav");
    sound_suck = gi.soundindex("parasite/paratck3.wav");
    sound_reelin = gi.soundindex("parasite/paratck4.wav");
    sound_sight = gi.soundindex("parasite/parsght1.wav");
    sound_tap = gi.soundindex("parasite/paridle1.wav");
    sound_scratch = gi.soundindex("parasite/paridle2.wav");
    sound_search = gi.soundindex("parasite/parsrch1.wav");
 
    self->s.modelindex = gi.modelindex ("models/monsters/parasite/tris.md2");
    VectorSet (self->mins, -16, -16, -24);
    VectorSet (self->maxs, 16, 16, 24);
    self->movetype = MOVETYPE_STEP;
    self->solid = SOLID_BBOX;
 
    self->health = 175;
    self->gib_health = -50;
    self->mass = 250;
 
    self->pain = parasite_pain;
    self->die = parasite_die;
 
    self->monsterinfo.stand = parasite_stand;
    self->monsterinfo.walk = parasite_start_walk;
    self->monsterinfo.run = parasite_start_run;
    self->monsterinfo.attack = parasite_attack;
    self->monsterinfo.sight = parasite_sight;
    self->monsterinfo.idle = parasite_idle;
 
    gi.linkentity (self);
 
    self->monsterinfo.currentmove = &parasite_move_stand;   
    self->monsterinfo.scale = MODEL_SCALE;
 
    walkmonster_start (self);
}