m_mutant.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.
 
*/
/*
==============================================================================
 
mutant
 
==============================================================================
*/
 
#include "g_local.h"
#include "m_mutant.h"
 
 
static int  sound_swing;
static int  sound_hit;
static int  sound_hit2;
static int  sound_death;
static int  sound_idle;
static int  sound_pain1;
static int  sound_pain2;
static int  sound_sight;
static int  sound_search;
static int  sound_step1;
static int  sound_step2;
static int  sound_step3;
static int  sound_thud;
 
//
// SOUNDS
//
 
void mutant_step (edict_t *self)
{
    int     n;
    n = (rand() + 1) % 3;
    if (n == 0)
        gi.sound (self, CHAN_VOICE, sound_step1, 1, ATTN_NORM, 0);      
    else if (n == 1)
        gi.sound (self, CHAN_VOICE, sound_step2, 1, ATTN_NORM, 0);
    else
        gi.sound (self, CHAN_VOICE, sound_step3, 1, ATTN_NORM, 0);
}
 
void mutant_sight (edict_t *self, edict_t *other)
{
    gi.sound (self, CHAN_VOICE, sound_sight, 1, ATTN_NORM, 0);
}
 
void mutant_search (edict_t *self)
{
    gi.sound (self, CHAN_VOICE, sound_search, 1, ATTN_NORM, 0);
}
 
void mutant_swing (edict_t *self)
{
    gi.sound (self, CHAN_VOICE, sound_swing, 1, ATTN_NORM, 0);
}
 
 
//
// STAND
//
 
mframe_t mutant_frames_stand [] =
{
    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,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,      // 10
 
    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,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,      // 20
 
    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,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,      // 30
 
    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,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,      // 40
 
    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,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,      // 50
 
    ai_stand, 0, NULL
};
mmove_t mutant_move_stand = {FRAME_stand101, FRAME_stand151, mutant_frames_stand, NULL};
 
void mutant_stand (edict_t *self)
{
    self->monsterinfo.currentmove = &mutant_move_stand;
}
 
 
//
// IDLE
//
 
void mutant_idle_loop (edict_t *self)
{
    if (random() < 0.75)
        self->monsterinfo.nextframe = FRAME_stand155;
}
 
mframe_t mutant_frames_idle [] =
{
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,                  // scratch loop start
    ai_stand, 0, NULL,
    ai_stand, 0, NULL,
    ai_stand, 0, mutant_idle_loop,      // scratch loop end
    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 mutant_move_idle = {FRAME_stand152, FRAME_stand164, mutant_frames_idle, mutant_stand};
 
void mutant_idle (edict_t *self)
{
    self->monsterinfo.currentmove = &mutant_move_idle;
    gi.sound (self, CHAN_VOICE, sound_idle, 1, ATTN_IDLE, 0);
}
 
 
//
// WALK
//
 
void mutant_walk (edict_t *self);
 
mframe_t mutant_frames_walk [] =
{
    ai_walk,    3,      NULL,
    ai_walk,    1,      NULL,
    ai_walk,    5,      NULL,
    ai_walk,    10,     NULL,
    ai_walk,    13,     NULL,
    ai_walk,    10,     NULL,
    ai_walk,    0,      NULL,
    ai_walk,    5,      NULL,
    ai_walk,    6,      NULL,
    ai_walk,    16,     NULL,
    ai_walk,    15,     NULL,
    ai_walk,    6,      NULL
};
mmove_t mutant_move_walk = {FRAME_walk05, FRAME_walk16, mutant_frames_walk, NULL};
 
void mutant_walk_loop (edict_t *self)
{
    self->monsterinfo.currentmove = &mutant_move_walk;
}
 
mframe_t mutant_frames_start_walk [] =
{
    ai_walk,    5,      NULL,
    ai_walk,    5,      NULL,
    ai_walk,    -2,     NULL,
    ai_walk,    1,      NULL
};
mmove_t mutant_move_start_walk = {FRAME_walk01, FRAME_walk04, mutant_frames_start_walk, mutant_walk_loop};
 
void mutant_walk (edict_t *self)
{
    self->monsterinfo.currentmove = &mutant_move_start_walk;
}
 
 
//
// RUN
//
 
mframe_t mutant_frames_run [] =
{
    ai_run, 40,     NULL,
    ai_run, 40,     mutant_step,
    ai_run, 24,     NULL,
    ai_run, 5,      mutant_step,
    ai_run, 17,     NULL,
    ai_run, 10,     NULL
};
mmove_t mutant_move_run = {FRAME_run03, FRAME_run08, mutant_frames_run, NULL};
 
void mutant_run (edict_t *self)
{
    if (self->monsterinfo.aiflags & AI_STAND_GROUND)
        self->monsterinfo.currentmove = &mutant_move_stand;
    else
        self->monsterinfo.currentmove = &mutant_move_run;
}
 
 
//
// MELEE
//
 
void mutant_hit_left (edict_t *self)
{
    vec3_t  aim;
 
    VectorSet (aim, MELEE_DISTANCE, self->mins[0], 8);
    if (fire_hit (self, aim, (10 + (rand() %5)), 100))
        gi.sound (self, CHAN_WEAPON, sound_hit, 1, ATTN_NORM, 0);
    else
        gi.sound (self, CHAN_WEAPON, sound_swing, 1, ATTN_NORM, 0);
}
 
void mutant_hit_right (edict_t *self)
{
    vec3_t  aim;
 
    VectorSet (aim, MELEE_DISTANCE, self->maxs[0], 8);
    if (fire_hit (self, aim, (10 + (rand() %5)), 100))
        gi.sound (self, CHAN_WEAPON, sound_hit2, 1, ATTN_NORM, 0);
    else
        gi.sound (self, CHAN_WEAPON, sound_swing, 1, ATTN_NORM, 0);
}
 
void mutant_check_refire (edict_t *self)
{
    if (!self->enemy || !self->enemy->inuse || self->enemy->health <= 0)
        return;
 
    if ( ((skill->value == 3) && (random() < 0.5)) || (range(self, self->enemy) == RANGE_MELEE) )
        self->monsterinfo.nextframe = FRAME_attack09;
}
 
mframe_t mutant_frames_attack [] =
{
    ai_charge,  0,  NULL,
    ai_charge,  0,  NULL,
    ai_charge,  0,  mutant_hit_left,
    ai_charge,  0,  NULL,
    ai_charge,  0,  NULL,
    ai_charge,  0,  mutant_hit_right,
    ai_charge,  0,  mutant_check_refire
};
mmove_t mutant_move_attack = {FRAME_attack09, FRAME_attack15, mutant_frames_attack, mutant_run};
 
void mutant_melee (edict_t *self)
{
    self->monsterinfo.currentmove = &mutant_move_attack;
}
 
 
//
// ATTACK
//
 
void mutant_jump_touch (edict_t *self, edict_t *other, cplane_t *plane, csurface_t *surf)
{
    if (self->health <= 0)
    {
        self->touch = NULL;
        return;
    }
 
    if (other->takedamage)
    {
        if (VectorLength(self->velocity) > 400)
        {
            vec3_t  point;
            vec3_t  normal;
            int     damage;
 
            VectorCopy (self->velocity, normal);
            VectorNormalize(normal);
            VectorMA (self->s.origin, self->maxs[0], normal, point);
            damage = 40 + 10 * random();
            T_Damage (other, self, self, self->velocity, point, normal, damage, damage, 0, MOD_UNKNOWN);
        }
    }
 
    if (!M_CheckBottom (self))
    {
        if (self->groundentity)
        {
            self->monsterinfo.nextframe = FRAME_attack02;
            self->touch = NULL;
        }
        return;
    }
 
    self->touch = NULL;
}
 
void mutant_jump_takeoff (edict_t *self)
{
    vec3_t  forward;
 
    gi.sound (self, CHAN_VOICE, sound_sight, 1, ATTN_NORM, 0);
    AngleVectors (self->s.angles, forward, NULL, NULL);
    self->s.origin[2] += 1;
    VectorScale (forward, 600, self->velocity);
    self->velocity[2] = 250;
    self->groundentity = NULL;
    self->monsterinfo.aiflags |= AI_DUCKED;
    self->monsterinfo.attack_finished = level.time + 3;
    self->touch = mutant_jump_touch;
}
 
void mutant_check_landing (edict_t *self)
{
    if (self->groundentity)
    {
        gi.sound (self, CHAN_WEAPON, sound_thud, 1, ATTN_NORM, 0);
        self->monsterinfo.attack_finished = 0;
        self->monsterinfo.aiflags &= ~AI_DUCKED;
        return;
    }
 
    if (level.time > self->monsterinfo.attack_finished)
        self->monsterinfo.nextframe = FRAME_attack02;
    else
        self->monsterinfo.nextframe = FRAME_attack05;
}
 
mframe_t mutant_frames_jump [] =
{
    ai_charge,   0, NULL,
    ai_charge,  17, NULL,
    ai_charge,  15, mutant_jump_takeoff,
    ai_charge,  15, NULL,
    ai_charge,  15, mutant_check_landing,
    ai_charge,   0, NULL,
    ai_charge,   3, NULL,
    ai_charge,   0, NULL
};
mmove_t mutant_move_jump = {FRAME_attack01, FRAME_attack08, mutant_frames_jump, mutant_run};
 
void mutant_jump (edict_t *self)
{
    self->monsterinfo.currentmove = &mutant_move_jump;
}
 
 
//
// CHECKATTACK
//
 
qboolean mutant_check_melee (edict_t *self)
{
    if (range (self, self->enemy) == RANGE_MELEE)
        return true;
    return false;
}
 
qboolean mutant_check_jump (edict_t *self)
{
    vec3_t  v;
    float   distance;
 
    if (self->absmin[2] > (self->enemy->absmin[2] + 0.75 * self->enemy->size[2]))
        return false;
 
    if (self->absmax[2] < (self->enemy->absmin[2] + 0.25 * self->enemy->size[2]))
        return false;
 
    v[0] = self->s.origin[0] - self->enemy->s.origin[0];
    v[1] = self->s.origin[1] - self->enemy->s.origin[1];
    v[2] = 0;
    distance = VectorLength(v);
 
    if (distance < 100)
        return false;
    if (distance > 100)
    {
        if (random() < 0.9)
            return false;
    }
 
    return true;
}
 
qboolean mutant_checkattack (edict_t *self)
{
    if (!self->enemy || self->enemy->health <= 0)
        return false;
 
    if (mutant_check_melee(self))
    {
        self->monsterinfo.attack_state = AS_MELEE;
        return true;
    }
 
    if (mutant_check_jump(self))
    {
        self->monsterinfo.attack_state = AS_MISSILE;
        // FIXME play a jump sound here
        return true;
    }
 
    return false;
}
 
 
//
// PAIN
//
 
mframe_t mutant_frames_pain1 [] =
{
    ai_move,    4,  NULL,
    ai_move,    -3, NULL,
    ai_move,    -8, NULL,
    ai_move,    2,  NULL,
    ai_move,    5,  NULL
};
mmove_t mutant_move_pain1 = {FRAME_pain101, FRAME_pain105, mutant_frames_pain1, mutant_run};
 
mframe_t mutant_frames_pain2 [] =
{
    ai_move,    -24,NULL,
    ai_move,    11, NULL,
    ai_move,    5,  NULL,
    ai_move,    -2, NULL,
    ai_move,    6,  NULL,
    ai_move,    4,  NULL
};
mmove_t mutant_move_pain2 = {FRAME_pain201, FRAME_pain206, mutant_frames_pain2, mutant_run};
 
mframe_t mutant_frames_pain3 [] =
{
    ai_move,    -22,NULL,
    ai_move,    3,  NULL,
    ai_move,    3,  NULL,
    ai_move,    2,  NULL,
    ai_move,    1,  NULL,
    ai_move,    1,  NULL,
    ai_move,    6,  NULL,
    ai_move,    3,  NULL,
    ai_move,    2,  NULL,
    ai_move,    0,  NULL,
    ai_move,    1,  NULL
};
mmove_t mutant_move_pain3 = {FRAME_pain301, FRAME_pain311, mutant_frames_pain3, mutant_run};
 
void mutant_pain (edict_t *self, edict_t *other, float kick, int damage)
{
    float   r;
 
    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
 
    r = random();
    if (r < 0.33)
    {
        gi.sound (self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
        self->monsterinfo.currentmove = &mutant_move_pain1;
    }
    else if (r < 0.66)
    {
        gi.sound (self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
        self->monsterinfo.currentmove = &mutant_move_pain2;
    }
    else
    {
        gi.sound (self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
        self->monsterinfo.currentmove = &mutant_move_pain3;
    }
}
 
 
//
// DEATH
//
 
void mutant_dead (edict_t *self)
{
    VectorSet (self->mins, -16, -16, -24);
    VectorSet (self->maxs, 16, 16, -8);
    self->movetype = MOVETYPE_TOSS;
    self->svflags |= SVF_DEADMONSTER;
    gi.linkentity (self);
 
    M_FlyCheck (self);
}
 
mframe_t mutant_frames_death1 [] =
{
    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,
    ai_move,    0,  NULL,
    ai_move,    0,  NULL
};
mmove_t mutant_move_death1 = {FRAME_death101, FRAME_death109, mutant_frames_death1, mutant_dead};
 
mframe_t mutant_frames_death2 [] =
{
    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,
    ai_move,    0,  NULL,
    ai_move,    0,  NULL,
    ai_move,    0,  NULL
};
mmove_t mutant_move_death2 = {FRAME_death201, FRAME_death210, mutant_frames_death2, mutant_dead};
 
void mutant_die (edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, vec3_t point)
{
    int     n;
 
    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;
 
    gi.sound (self, CHAN_VOICE, sound_death, 1, ATTN_NORM, 0);
    self->deadflag = DEAD_DEAD;
    self->takedamage = DAMAGE_YES;
    self->s.skinnum = 1;
 
    if (random() < 0.5)
        self->monsterinfo.currentmove = &mutant_move_death1;
    else
        self->monsterinfo.currentmove = &mutant_move_death2;
}
 
 
//
// SPAWN
//
 
/*QUAKED monster_mutant (1 .5 0) (-32 -32 -24) (32 32 32) Ambush Trigger_Spawn Sight
*/
void SP_monster_mutant (edict_t *self)
{
    if (deathmatch->value)
    {
        G_FreeEdict (self);
        return;
    }
 
    sound_swing = gi.soundindex ("mutant/mutatck1.wav");
    sound_hit = gi.soundindex ("mutant/mutatck2.wav");
    sound_hit2 = gi.soundindex ("mutant/mutatck3.wav");
    sound_death = gi.soundindex ("mutant/mutdeth1.wav");
    sound_idle = gi.soundindex ("mutant/mutidle1.wav");
    sound_pain1 = gi.soundindex ("mutant/mutpain1.wav");
    sound_pain2 = gi.soundindex ("mutant/mutpain2.wav");
    sound_sight = gi.soundindex ("mutant/mutsght1.wav");
    sound_search = gi.soundindex ("mutant/mutsrch1.wav");
    sound_step1 = gi.soundindex ("mutant/step1.wav");
    sound_step2 = gi.soundindex ("mutant/step2.wav");
    sound_step3 = gi.soundindex ("mutant/step3.wav");
    sound_thud = gi.soundindex ("mutant/thud1.wav");
    
    self->movetype = MOVETYPE_STEP;
    self->solid = SOLID_BBOX;
    self->s.modelindex = gi.modelindex ("models/monsters/mutant/tris.md2");
    VectorSet (self->mins, -32, -32, -24);
    VectorSet (self->maxs, 32, 32, 48);
 
    self->health = 300;
    self->gib_health = -120;
    self->mass = 300;
 
    self->pain = mutant_pain;
    self->die = mutant_die;
 
    self->monsterinfo.stand = mutant_stand;
    self->monsterinfo.walk = mutant_walk;
    self->monsterinfo.run = mutant_run;
    self->monsterinfo.dodge = NULL;
    self->monsterinfo.attack = mutant_jump;
    self->monsterinfo.melee = mutant_melee;
    self->monsterinfo.sight = mutant_sight;
    self->monsterinfo.search = mutant_search;
    self->monsterinfo.idle = mutant_idle;
    self->monsterinfo.checkattack = mutant_checkattack;
 
    gi.linkentity (self);
    
    self->monsterinfo.currentmove = &mutant_move_stand;
 
    self->monsterinfo.scale = MODEL_SCALE;
    walkmonster_start (self);
}