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-rw-r--r--source/baseq2/g_monster.c742
1 files changed, 742 insertions, 0 deletions
diff --git a/source/baseq2/g_monster.c b/source/baseq2/g_monster.c
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+++ b/source/baseq2/g_monster.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.
+
+*/
+#include "g_local.h"
+
+
+//
+// monster weapons
+//
+
+//FIXME mosnters should call these with a totally accurate direction
+// and we can mess it up based on skill. Spread should be for normal
+// and we can tighten or loosen based on skill. We could muck with
+// the damages too, but I'm not sure that's such a good idea.
+void monster_fire_bullet (edict_t *self, vec3_t start, vec3_t dir, int damage, int kick, int hspread, int vspread, int flashtype)
+{
+ fire_bullet (self, start, dir, damage, kick, hspread, vspread, MOD_UNKNOWN);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+void monster_fire_shotgun (edict_t *self, vec3_t start, vec3_t aimdir, int damage, int kick, int hspread, int vspread, int count, int flashtype)
+{
+ fire_shotgun (self, start, aimdir, damage, kick, hspread, vspread, count, MOD_UNKNOWN);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+void monster_fire_blaster (edict_t *self, vec3_t start, vec3_t dir, int damage, int speed, int flashtype, int effect)
+{
+ fire_blaster (self, start, dir, damage, speed, effect, qfalse);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+void monster_fire_grenade (edict_t *self, vec3_t start, vec3_t aimdir, int damage, int speed, int flashtype)
+{
+ fire_grenade (self, start, aimdir, damage, speed, 2.5, damage+40);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+void monster_fire_rocket (edict_t *self, vec3_t start, vec3_t dir, int damage, int speed, int flashtype)
+{
+ fire_rocket (self, start, dir, damage, speed, damage+20, damage);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+void monster_fire_railgun (edict_t *self, vec3_t start, vec3_t aimdir, int damage, int kick, int flashtype)
+{
+ fire_rail (self, start, aimdir, damage, kick);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+void monster_fire_bfg (edict_t *self, vec3_t start, vec3_t aimdir, int damage, int speed, int kick, float damage_radius, int flashtype)
+{
+ fire_bfg (self, start, aimdir, damage, speed, damage_radius);
+
+ gi.WriteByte (svc_muzzleflash2);
+ gi.WriteShort (self - g_edicts);
+ gi.WriteByte (flashtype);
+ gi.multicast (start, MULTICAST_PVS);
+}
+
+
+
+//
+// Monster utility functions
+//
+
+static void M_FliesOff (edict_t *self)
+{
+ self->s.effects &= ~EF_FLIES;
+ self->s.sound = 0;
+}
+
+static void M_FliesOn (edict_t *self)
+{
+ if (self->waterlevel)
+ return;
+ self->s.effects |= EF_FLIES;
+ self->s.sound = gi.soundindex ("infantry/inflies1.wav");
+ self->think = M_FliesOff;
+ self->nextthink = level.time + 60;
+}
+
+void M_FlyCheck (edict_t *self)
+{
+ if (self->waterlevel)
+ return;
+
+ if (random() > 0.5)
+ return;
+
+ self->think = M_FliesOn;
+ self->nextthink = level.time + 5 + 10 * random();
+}
+
+void AttackFinished (edict_t *self, float time)
+{
+ self->monsterinfo.attack_finished = level.time + time;
+}
+
+
+void M_CheckGround (edict_t *ent)
+{
+ vec3_t point;
+ trace_t trace;
+
+ if (ent->flags & (FL_SWIM|FL_FLY))
+ return;
+
+ if (ent->velocity[2] > 100)
+ {
+ ent->groundentity = NULL;
+ return;
+ }
+
+// if the hull point one-quarter unit down is solid the entity is on ground
+ point[0] = ent->s.origin[0];
+ point[1] = ent->s.origin[1];
+ point[2] = ent->s.origin[2] - 0.25;
+
+ trace = gi.trace (ent->s.origin, ent->mins, ent->maxs, point, ent, MASK_MONSTERSOLID);
+
+ // check steepness
+ if ( trace.plane.normal[2] < 0.7 && !trace.startsolid)
+ {
+ ent->groundentity = NULL;
+ return;
+ }
+
+// ent->groundentity = trace.ent;
+// ent->groundentity_linkcount = trace.ent->linkcount;
+// if (!trace.startsolid && !trace.allsolid)
+// VectorCopy (trace.endpos, ent->s.origin);
+ if (!trace.startsolid && !trace.allsolid)
+ {
+ VectorCopy (trace.endpos, ent->s.origin);
+ ent->groundentity = trace.ent;
+ ent->groundentity_linkcount = trace.ent->linkcount;
+ ent->velocity[2] = 0;
+ }
+}
+
+
+void M_CatagorizePosition (edict_t *ent)
+{
+ vec3_t point;
+ int cont;
+
+//
+// get waterlevel
+//
+ point[0] = ent->s.origin[0];
+ point[1] = ent->s.origin[1];
+ point[2] = ent->s.origin[2] + ent->mins[2] + 1;
+ cont = gi.pointcontents (point);
+
+ if (!(cont & MASK_WATER))
+ {
+ ent->waterlevel = 0;
+ ent->watertype = 0;
+ return;
+ }
+
+ ent->watertype = cont;
+ ent->waterlevel = 1;
+ point[2] += 26;
+ cont = gi.pointcontents (point);
+ if (!(cont & MASK_WATER))
+ return;
+
+ ent->waterlevel = 2;
+ point[2] += 22;
+ cont = gi.pointcontents (point);
+ if (cont & MASK_WATER)
+ ent->waterlevel = 3;
+}
+
+
+void M_WorldEffects (edict_t *ent)
+{
+ int dmg;
+
+ if (ent->health > 0)
+ {
+ if (!(ent->flags & FL_SWIM))
+ {
+ if (ent->waterlevel < 3)
+ {
+ ent->air_finished = level.time + 12;
+ }
+ else if (ent->air_finished < level.time)
+ { // drown!
+ if (ent->pain_debounce_time < level.time)
+ {
+ dmg = 2 + 2 * floor(level.time - ent->air_finished);
+ if (dmg > 15)
+ dmg = 15;
+ T_Damage (ent, world, world, vec3_origin, ent->s.origin, vec3_origin, dmg, 0, DAMAGE_NO_ARMOR, MOD_WATER);
+ ent->pain_debounce_time = level.time + 1;
+ }
+ }
+ }
+ else
+ {
+ if (ent->waterlevel > 0)
+ {
+ ent->air_finished = level.time + 9;
+ }
+ else if (ent->air_finished < level.time)
+ { // suffocate!
+ if (ent->pain_debounce_time < level.time)
+ {
+ dmg = 2 + 2 * floor(level.time - ent->air_finished);
+ if (dmg > 15)
+ dmg = 15;
+ T_Damage (ent, world, world, vec3_origin, ent->s.origin, vec3_origin, dmg, 0, DAMAGE_NO_ARMOR, MOD_WATER);
+ ent->pain_debounce_time = level.time + 1;
+ }
+ }
+ }
+ }
+
+ if (ent->waterlevel == 0)
+ {
+ if (ent->flags & FL_INWATER)
+ {
+ gi.sound (ent, CHAN_BODY, gi.soundindex("player/watr_out.wav"), 1, ATTN_NORM, 0);
+ ent->flags &= ~FL_INWATER;
+ }
+ return;
+ }
+
+ if ((ent->watertype & CONTENTS_LAVA) && !(ent->flags & FL_IMMUNE_LAVA))
+ {
+ if (ent->damage_debounce_time < level.time)
+ {
+ ent->damage_debounce_time = level.time + 0.2;
+ T_Damage (ent, world, world, vec3_origin, ent->s.origin, vec3_origin, 10*ent->waterlevel, 0, 0, MOD_LAVA);
+ }
+ }
+ if ((ent->watertype & CONTENTS_SLIME) && !(ent->flags & FL_IMMUNE_SLIME))
+ {
+ if (ent->damage_debounce_time < level.time)
+ {
+ ent->damage_debounce_time = level.time + 1;
+ T_Damage (ent, world, world, vec3_origin, ent->s.origin, vec3_origin, 4*ent->waterlevel, 0, 0, MOD_SLIME);
+ }
+ }
+
+ if ( !(ent->flags & FL_INWATER) )
+ {
+ if (!(ent->svflags & SVF_DEADMONSTER))
+ {
+ if (ent->watertype & CONTENTS_LAVA)
+ if (random() <= 0.5)
+ gi.sound (ent, CHAN_BODY, gi.soundindex("player/lava1.wav"), 1, ATTN_NORM, 0);
+ else
+ gi.sound (ent, CHAN_BODY, gi.soundindex("player/lava2.wav"), 1, ATTN_NORM, 0);
+ else if (ent->watertype & CONTENTS_SLIME)
+ gi.sound (ent, CHAN_BODY, gi.soundindex("player/watr_in.wav"), 1, ATTN_NORM, 0);
+ else if (ent->watertype & CONTENTS_WATER)
+ gi.sound (ent, CHAN_BODY, gi.soundindex("player/watr_in.wav"), 1, ATTN_NORM, 0);
+ }
+
+ ent->flags |= FL_INWATER;
+ ent->damage_debounce_time = 0;
+ }
+}
+
+
+void M_droptofloor (edict_t *ent)
+{
+ vec3_t end;
+ trace_t trace;
+
+ ent->s.origin[2] += 1;
+ VectorCopy (ent->s.origin, end);
+ end[2] -= 256;
+
+ trace = gi.trace (ent->s.origin, ent->mins, ent->maxs, end, ent, MASK_MONSTERSOLID);
+
+ if (trace.fraction == 1 || trace.allsolid)
+ return;
+
+ VectorCopy (trace.endpos, ent->s.origin);
+
+ gi.linkentity (ent);
+ M_CheckGround (ent);
+ M_CatagorizePosition (ent);
+}
+
+
+void M_SetEffects (edict_t *ent)
+{
+ ent->s.effects &= ~(EF_COLOR_SHELL|EF_POWERSCREEN);
+ ent->s.renderfx &= ~(RF_SHELL_RED|RF_SHELL_GREEN|RF_SHELL_BLUE);
+
+ if (ent->monsterinfo.aiflags & AI_RESURRECTING)
+ {
+ ent->s.effects |= EF_COLOR_SHELL;
+ ent->s.renderfx |= RF_SHELL_RED;
+ }
+
+ if (ent->health <= 0)
+ return;
+
+ if (ent->powerarmor_time > level.time)
+ {
+ if (ent->monsterinfo.power_armor_type == POWER_ARMOR_SCREEN)
+ {
+ ent->s.effects |= EF_POWERSCREEN;
+ }
+ else if (ent->monsterinfo.power_armor_type == POWER_ARMOR_SHIELD)
+ {
+ ent->s.effects |= EF_COLOR_SHELL;
+ ent->s.renderfx |= RF_SHELL_GREEN;
+ }
+ }
+}
+
+
+void M_MoveFrame (edict_t *self)
+{
+ mmove_t *move;
+ int index;
+
+ move = self->monsterinfo.currentmove;
+ self->nextthink = level.time + FRAMETIME;
+
+ if ((self->monsterinfo.nextframe) && (self->monsterinfo.nextframe >= move->firstframe) && (self->monsterinfo.nextframe <= move->lastframe))
+ {
+ self->s.frame = self->monsterinfo.nextframe;
+ self->monsterinfo.nextframe = 0;
+ }
+ else
+ {
+ if (self->s.frame == move->lastframe)
+ {
+ if (move->endfunc)
+ {
+ move->endfunc (self);
+
+ // regrab move, endfunc is very likely to change it
+ move = self->monsterinfo.currentmove;
+
+ // check for death
+ if (self->svflags & SVF_DEADMONSTER)
+ return;
+ }
+ }
+
+ if (self->s.frame < move->firstframe || self->s.frame > move->lastframe)
+ {
+ self->monsterinfo.aiflags &= ~AI_HOLD_FRAME;
+ self->s.frame = move->firstframe;
+ }
+ else
+ {
+ if (!(self->monsterinfo.aiflags & AI_HOLD_FRAME))
+ {
+ self->s.frame++;
+ if (self->s.frame > move->lastframe)
+ self->s.frame = move->firstframe;
+ }
+ }
+ }
+
+ index = self->s.frame - move->firstframe;
+ if (move->frame[index].aifunc)
+ {
+ if (!(self->monsterinfo.aiflags & AI_HOLD_FRAME))
+ move->frame[index].aifunc (self, move->frame[index].dist * self->monsterinfo.scale);
+ else
+ move->frame[index].aifunc (self, 0);
+ }
+
+ if (move->frame[index].thinkfunc)
+ move->frame[index].thinkfunc (self);
+}
+
+
+void monster_think (edict_t *self)
+{
+ M_MoveFrame (self);
+ if (self->linkcount != self->monsterinfo.linkcount)
+ {
+ self->monsterinfo.linkcount = self->linkcount;
+ M_CheckGround (self);
+ }
+ M_CatagorizePosition (self);
+ M_WorldEffects (self);
+ M_SetEffects (self);
+}
+
+
+/*
+================
+monster_use
+
+Using a monster makes it angry at the current activator
+================
+*/
+void monster_use (edict_t *self, edict_t *other, edict_t *activator)
+{
+ if (self->enemy)
+ return;
+ if (self->health <= 0)
+ return;
+ if (activator->flags & FL_NOTARGET)
+ return;
+ if (!(activator->client) && !(activator->monsterinfo.aiflags & AI_GOOD_GUY))
+ return;
+
+// delay reaction so if the monster is teleported, its sound is still heard
+ self->enemy = activator;
+ FoundTarget (self);
+}
+
+
+void monster_start_go (edict_t *self);
+
+
+void monster_triggered_spawn (edict_t *self)
+{
+ self->s.origin[2] += 1;
+ KillBox (self);
+
+ self->solid = SOLID_BBOX;
+ self->movetype = MOVETYPE_STEP;
+ self->svflags &= ~SVF_NOCLIENT;
+ self->air_finished = level.time + 12;
+ gi.linkentity (self);
+
+ monster_start_go (self);
+
+ if (self->enemy && !(self->spawnflags & 1) && !(self->enemy->flags & FL_NOTARGET))
+ {
+ FoundTarget (self);
+ }
+ else
+ {
+ self->enemy = NULL;
+ }
+}
+
+void monster_triggered_spawn_use (edict_t *self, edict_t *other, edict_t *activator)
+{
+ // we have a one frame delay here so we don't telefrag the guy who activated us
+ self->think = monster_triggered_spawn;
+ self->nextthink = level.time + FRAMETIME;
+ if (activator->client)
+ self->enemy = activator;
+ self->use = monster_use;
+}
+
+void monster_triggered_start (edict_t *self)
+{
+ self->solid = SOLID_NOT;
+ self->movetype = MOVETYPE_NONE;
+ self->svflags |= SVF_NOCLIENT;
+ self->nextthink = 0;
+ self->use = monster_triggered_spawn_use;
+}
+
+
+/*
+================
+monster_death_use
+
+When a monster dies, it fires all of its targets with the current
+enemy as activator.
+================
+*/
+void monster_death_use (edict_t *self)
+{
+ self->flags &= ~(FL_FLY|FL_SWIM);
+ self->monsterinfo.aiflags &= AI_GOOD_GUY;
+
+ if (self->item)
+ {
+ Drop_Item (self, self->item);
+ self->item = NULL;
+ }
+
+ if (self->deathtarget)
+ self->target = self->deathtarget;
+
+ if (!self->target)
+ return;
+
+ G_UseTargets (self, self->enemy);
+}
+
+
+//============================================================================
+
+qboolean monster_start (edict_t *self)
+{
+ if (deathmatch->value)
+ {
+ G_FreeEdict (self);
+ return qfalse;
+ }
+
+ if ((self->spawnflags & 4) && !(self->monsterinfo.aiflags & AI_GOOD_GUY))
+ {
+ self->spawnflags &= ~4;
+ self->spawnflags |= 1;
+// gi.dprintf("fixed spawnflags on %s at %s\n", self->classname, vtos(self->s.origin));
+ }
+
+ if (!(self->monsterinfo.aiflags & AI_GOOD_GUY))
+ level.total_monsters++;
+
+ self->nextthink = level.time + FRAMETIME;
+ self->svflags |= SVF_MONSTER;
+ self->s.renderfx |= RF_FRAMELERP;
+ self->takedamage = DAMAGE_AIM;
+ self->air_finished = level.time + 12;
+ self->use = monster_use;
+ self->max_health = self->health;
+ self->clipmask = MASK_MONSTERSOLID;
+
+ self->s.skinnum = 0;
+ self->deadflag = DEAD_NO;
+ self->svflags &= ~SVF_DEADMONSTER;
+
+ if (!self->monsterinfo.checkattack)
+ self->monsterinfo.checkattack = M_CheckAttack;
+ VectorCopy (self->s.origin, self->s.old_origin);
+
+ if (st.item)
+ {
+ self->item = FindItemByClassname (st.item);
+ if (!self->item)
+ gi.dprintf("%s at %s has bad item: %s\n", self->classname, vtos(self->s.origin), st.item);
+ }
+
+ // randomize what frame they start on
+ if (self->monsterinfo.currentmove)
+ self->s.frame = self->monsterinfo.currentmove->firstframe + (rand() % (self->monsterinfo.currentmove->lastframe - self->monsterinfo.currentmove->firstframe + 1));
+
+ return qtrue;
+}
+
+void monster_start_go (edict_t *self)
+{
+ vec3_t v;
+
+ if (self->health <= 0)
+ return;
+
+ // check for target to combat_point and change to combattarget
+ if (self->target)
+ {
+ qboolean notcombat;
+ qboolean fixup;
+ edict_t *target;
+
+ target = NULL;
+ notcombat = qfalse;
+ fixup = qfalse;
+ while ((target = G_Find (target, FOFS(targetname), self->target)) != NULL)
+ {
+ if (strcmp(target->classname, "point_combat") == 0)
+ {
+ self->combattarget = self->target;
+ fixup = qtrue;
+ }
+ else
+ {
+ notcombat = qtrue;
+ }
+ }
+ if (notcombat && self->combattarget)
+ gi.dprintf("%s at %s has target with mixed types\n", self->classname, vtos(self->s.origin));
+ if (fixup)
+ self->target = NULL;
+ }
+
+ // validate combattarget
+ if (self->combattarget)
+ {
+ edict_t *target;
+
+ target = NULL;
+ while ((target = G_Find (target, FOFS(targetname), self->combattarget)) != NULL)
+ {
+ if (strcmp(target->classname, "point_combat") != 0)
+ {
+ gi.dprintf("%s at (%i %i %i) has a bad combattarget %s : %s at (%i %i %i)\n",
+ self->classname, (int)self->s.origin[0], (int)self->s.origin[1], (int)self->s.origin[2],
+ self->combattarget, target->classname, (int)target->s.origin[0], (int)target->s.origin[1],
+ (int)target->s.origin[2]);
+ }
+ }
+ }
+
+ if (self->target)
+ {
+ self->goalentity = self->movetarget = G_PickTarget(self->target);
+ if (!self->movetarget)
+ {
+ gi.dprintf ("%s can't find target %s at %s\n", self->classname, self->target, vtos(self->s.origin));
+ self->target = NULL;
+ self->monsterinfo.pausetime = 100000000;
+ self->monsterinfo.stand (self);
+ }
+ else if (strcmp (self->movetarget->classname, "path_corner") == 0)
+ {
+ VectorSubtract (self->goalentity->s.origin, self->s.origin, v);
+ self->ideal_yaw = self->s.angles[YAW] = vectoyaw(v);
+ self->monsterinfo.walk (self);
+ self->target = NULL;
+ }
+ else
+ {
+ self->goalentity = self->movetarget = NULL;
+ self->monsterinfo.pausetime = 100000000;
+ self->monsterinfo.stand (self);
+ }
+ }
+ else
+ {
+ self->monsterinfo.pausetime = 100000000;
+ self->monsterinfo.stand (self);
+ }
+
+ self->think = monster_think;
+ self->nextthink = level.time + FRAMETIME;
+}
+
+
+void walkmonster_start_go (edict_t *self)
+{
+ if (!(self->spawnflags & 2) && level.time < 1)
+ {
+ M_droptofloor (self);
+
+ if (self->groundentity)
+ if (!M_walkmove (self, 0, 0))
+ gi.dprintf ("%s in solid at %s\n", self->classname, vtos(self->s.origin));
+ }
+
+ if (!self->yaw_speed)
+ self->yaw_speed = 20;
+ self->viewheight = 25;
+
+ monster_start_go (self);
+
+ if (self->spawnflags & 2)
+ monster_triggered_start (self);
+}
+
+void walkmonster_start (edict_t *self)
+{
+ self->think = walkmonster_start_go;
+ monster_start (self);
+}
+
+
+void flymonster_start_go (edict_t *self)
+{
+ if (!M_walkmove (self, 0, 0))
+ gi.dprintf ("%s in solid at %s\n", self->classname, vtos(self->s.origin));
+
+ if (!self->yaw_speed)
+ self->yaw_speed = 10;
+ self->viewheight = 25;
+
+ monster_start_go (self);
+
+ if (self->spawnflags & 2)
+ monster_triggered_start (self);
+}
+
+
+void flymonster_start (edict_t *self)
+{
+ self->flags |= FL_FLY;
+ self->think = flymonster_start_go;
+ monster_start (self);
+}
+
+
+void swimmonster_start_go (edict_t *self)
+{
+ if (!self->yaw_speed)
+ self->yaw_speed = 10;
+ self->viewheight = 10;
+
+ monster_start_go (self);
+
+ if (self->spawnflags & 2)
+ monster_triggered_start (self);
+}
+
+void swimmonster_start (edict_t *self)
+{
+ self->flags |= FL_SWIM;
+ self->think = swimmonster_start_go;
+ monster_start (self);
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-28 14:04:32 +0000