monsters: minor movement refactor

[xonotic/xonotic-data.pk3dir.git] / qcsrc / common / monsters / sv_monsters.qc

#include "sv_monsters.qh"

#include <common/constants.qh>
#include <common/deathtypes/all.qh>
#include <common/items/_mod.qh>
#include <common/mapobjects/teleporters.qh>
#include <common/mapobjects/triggers.qh>
#include <common/monsters/all.qh>
#include <common/mutators/mutator/nades/nades.qh>
#include <common/mutators/mutator/status_effects/_mod.qh>
#include <common/physics/movelib.qh>
#include <common/stats.qh>
#include <common/teams.qh>
#include <common/turrets/sv_turrets.qh>
#include <common/turrets/util.qh>
#include <common/util.qh>
#include <common/vehicles/all.qh>
#include <common/weapons/_all.qh>
#include <common/weapons/_mod.qh>
#include <lib/csqcmodel/sv_model.qh>
#include <lib/warpzone/common.qh>
#include <server/campaign.qh>
#include <server/cheats.qh>
#include <server/client.qh>
#include <server/command/_mod.qh>
#include <server/damage.qh>
#include <server/items/items.qh>
#include <server/mutators/_mod.qh>
#include <server/round_handler.qh>
#include <server/steerlib.qh>
#include <server/weapons/_mod.qh>

void monsters_setstatus(entity this)
{
        STAT(MONSTERS_TOTAL, this) = monsters_total;
        STAT(MONSTERS_KILLED, this) = monsters_killed;
}

bool autocvar_g_monsters_drop = true;
void monster_dropitem(entity this, entity attacker)
{
        if(!this.candrop || !this.monster_loot || !autocvar_g_monsters_drop)
                return;

        entity e = spawn();
        e.itemdef = this.monster_loot;
        e.origin = CENTER_OR_VIEWOFS(this);
        e.velocity = randomvec() * 175 + '0 0 325';
        e.lifetime = max(0, autocvar_g_monsters_drop_time);

        MUTATOR_CALLHOOK(MonsterDropItem, this, e, attacker);
        e = M_ARGV(1, entity);

        if(e && e.itemdef)
                Item_Initialise(e);
}

bool monster_facing(entity this, entity targ)
{
        // relies on target having an origin
        makevectors(this.angles);
        vector targ_org = targ.origin, my_org = this.origin;
        if(autocvar_g_monsters_target_infront_2d)
        {
                targ_org = vec2(targ_org);
                my_org = vec2(my_org);
        }
        float dot = normalize(targ_org - my_org) * v_forward;

        return !(dot <= autocvar_g_monsters_target_infront_range);
}

void monster_makevectors(entity this, entity targ)
{
        if(IS_MONSTER(this))
        {
                vector v = targ.origin + (targ.mins + targ.maxs) * 0.5;
                this.v_angle = vectoangles(v - (this.origin + this.view_ofs));
                this.v_angle_x = -this.v_angle_x;
        }

        makevectors(this.v_angle);
}

// ===============
// Target handling
// ===============

bool Monster_ValidTarget(entity this, entity targ, bool skipfacing)
{
        // ensure we're not checking nonexistent monster/target
        if(!this || !targ) { return false; }

        if((targ == this)
        || (IS_VEHICLE(targ) && !(this.monsterdef.spawnflags & MON_FLAG_RANGED)) // melee vs vehicle is useless
        || (time < game_starttime) // monsters do nothing before match has started
        || (targ.takedamage == DAMAGE_NO)
        || (game_stopped)
        || (IS_SPEC(targ) || IS_OBSERVER(targ)) // don't attack spectators
        || (!IS_VEHICLE(targ) && (IS_DEAD(targ) || IS_DEAD(this) || GetResource(targ, RES_HEALTH) <= 0 || GetResource(this, RES_HEALTH) <= 0))
        || (this.monster_follow == targ || targ.monster_follow == this)
        || (!IS_VEHICLE(targ) && (targ.flags & FL_NOTARGET))
        || (!autocvar_g_monsters_typefrag && PHYS_INPUT_BUTTON_CHAT(targ))
        || (SAME_TEAM(targ, this))
        || (STAT(FROZEN, targ))
        || (targ.alpha != 0 && targ.alpha < 0.5)
        || (autocvar_g_monsters_lineofsight && !checkpvs(this.origin + this.view_ofs, targ)) // enemy cannot be seen
        || (MUTATOR_CALLHOOK(MonsterValidTarget, this, targ))
        )
        {
                // if any of the above checks fail, target is not valid
                return false;
        }

        vector targ_origin = ((targ.absmin + targ.absmax) * 0.5);
        traceline(this.origin + this.view_ofs, targ_origin, MOVE_NOMONSTERS, this); // TODO: maybe we can rely a bit on PVS data instead?

        if(trace_fraction < 1 && trace_ent != targ)
                return false; // solid

        if(!skipfacing && (autocvar_g_monsters_target_infront || (this.spawnflags & MONSTERFLAG_INFRONT)))
        if(this.enemy != targ)
        {
                if(!monster_facing(this, targ))
                        return false;
        }

        return true; // this target is valid!
}

entity Monster_FindTarget(entity this)
{
        if(MUTATOR_CALLHOOK(MonsterFindTarget)) { return this.enemy; } // Handled by a mutator

        entity closest_target = NULL;
        vector my_center = CENTER_OR_VIEWOFS(this);

        // find the closest acceptable target to pass to
        IL_EACH(g_monster_targets, it.monster_attack,
        {
                float trange = this.target_range;
                if(PHYS_INPUT_BUTTON_CROUCH(it))
                        trange *= 0.75; // TODO cvar this
                vector theirmid = (it.absmin + it.absmax) * 0.5;
                if(vdist(theirmid - this.origin, >, trange))
                        continue;
                if(!Monster_ValidTarget(this, it, false))
                        continue;

                // if it's a player, use the view origin as reference (stolen from RadiusDamage functions in g_damage.qc)
                vector targ_center = CENTER_OR_VIEWOFS(it);

                if(closest_target)
                {
                        vector closest_target_center = CENTER_OR_VIEWOFS(closest_target);
                        if(vlen2(my_center - targ_center) < vlen2(my_center - closest_target_center))
                                { closest_target = it; }
                }
                else { closest_target = it; }
        });

        return closest_target;
}

void monster_setupcolors(entity this)
{
        if(IS_PLAYER(this.realowner))
                this.colormap = this.realowner.colormap;
        else if(teamplay && this.team)
                this.colormap = 1024 + (this.team - 1) * 17;
        else
        {
                if(this.monster_skill <= MONSTER_SKILL_EASY)
                        this.colormap = 1126;
                else if(this.monster_skill <= MONSTER_SKILL_MEDIUM)
                        this.colormap = 1075;
                else if(this.monster_skill <= MONSTER_SKILL_HARD)
                        this.colormap = 1228;
                else if(this.monster_skill <= MONSTER_SKILL_INSANE)
                        this.colormap = 1092;
                else if(this.monster_skill <= MONSTER_SKILL_NIGHTMARE)
                        this.colormap = 1160;
                else
                        this.colormap = 1024;
        }

        if(this.colormap > 0)
                this.glowmod = colormapPaletteColor(this.colormap & 0x0F, false);
        else
                this.glowmod = '1 1 1';
}

void monster_changeteam(entity this, int newteam)
{
        if(!teamplay) { return; }

        this.team = newteam;
        if(!this.monster_attack)
                IL_PUSH(g_monster_targets, this);
        this.monster_attack = true; // new team, activate attacking
        monster_setupcolors(this);

        if(this.sprite)
        {
                WaypointSprite_UpdateTeamRadar(this.sprite, RADARICON_DANGER, ((newteam) ? Team_ColorRGB(newteam) : '1 0 0'));

                this.sprite.team = newteam;
                this.sprite.SendFlags |= 1;
        }
}

.void(entity) monster_delayedfunc;
void Monster_Delay_Action(entity this)
{
        // TODO: maybe do check for facing here
        if(Monster_ValidTarget(this.owner, this.owner.enemy, false))
        {
                monster_makevectors(this.owner, this.owner.enemy);
                this.monster_delayedfunc(this.owner);
        }

        if(this.cnt > 1)
        {
                this.cnt -= 1;
                setthink(this, Monster_Delay_Action);
                this.nextthink = time + this.count;
        }
        else
        {
                setthink(this, SUB_Remove);
                this.nextthink = time;
        }
}

void Monster_Delay(entity this, int repeat_count, float defer_amnt, void(entity) func)
{
        // deferred attacking, checks if monster is still alive and target is still valid before attacking
        entity e = new_pure(Monster_Delay);

        setthink(e, Monster_Delay_Action);
        e.nextthink = time + defer_amnt;
        e.count = defer_amnt;
        e.owner = this;
        e.monster_delayedfunc = func;
        e.cnt = repeat_count;
}


// ==============
// Monster sounds
// ==============

string get_monster_model_datafilename(string m, float sk, string fil)
{
        if(m)
                m = strcat(m, "_");
        else
                m = "models/monsters/*_";
        if(sk >= 0)
                m = strcat(m, ftos(sk));
        else
                m = strcat(m, "*");
        return strcat(m, ".", fil);
}

void Monster_Sound_Precache(string f)
{
        float fh;
        string s;
        fh = fopen(f, FILE_READ);
        if(fh < 0)
                return;
        while((s = fgets(fh)))
        {
                if(tokenize_console(s) != 3)
                {
                        //LOG_DEBUG("Invalid sound info line: ", s); // probably a comment, no need to spam warnings
                        continue;
                }
                PrecacheGlobalSound(strcat(argv(1), " ", argv(2)));
        }
        fclose(fh);
}

void Monster_Sounds_Precache(entity this)
{
        string m = this.monsterdef.m_model.model_str();
        float globhandle, n, i;
        string f;

        globhandle = search_begin(strcat(m, "_*.sounds"), true, false);
        if (globhandle < 0)
                return;
        n = search_getsize(globhandle);
        for (i = 0; i < n; ++i)
        {
                //print(search_getfilename(globhandle, i), "\n");
                f = search_getfilename(globhandle, i);
                Monster_Sound_Precache(f);
        }
        search_end(globhandle);
}

void Monster_Sounds_Clear(entity this)
{
#define _MSOUND(m) strfree(this.monstersound_##m);
        ALLMONSTERSOUNDS
#undef _MSOUND
}

.string Monster_Sound_SampleField(string type)
{
        GetMonsterSoundSampleField_notFound = 0;
        switch(type)
        {
#define _MSOUND(m) case #m: return monstersound_##m;
                ALLMONSTERSOUNDS
#undef _MSOUND
        }
        GetMonsterSoundSampleField_notFound = 1;
        return string_null;
}

bool Monster_Sounds_Load(entity this, string f, int first)
{
        string s;
        var .string field;
        float fh = fopen(f, FILE_READ);
        if(fh < 0)
        {
                //LOG_DEBUG("Monster sound file not found: ", f); // no biggie, monster has no sounds, let's not spam it
                return false;
        }
        while((s = fgets(fh)))
        {
                if(tokenize_console(s) != 3)
                        continue;
                field = Monster_Sound_SampleField(argv(0));
                if(GetMonsterSoundSampleField_notFound)
                        continue;
                strcpy(this.(field), strcat(argv(1), " ", argv(2)));
        }
        fclose(fh);
        return true;
}

.int skin_for_monstersound;
void Monster_Sounds_Update(entity this)
{
        if(this.skin == this.skin_for_monstersound) { return; }

        this.skin_for_monstersound = this.skin;
        Monster_Sounds_Clear(this);
        if(!Monster_Sounds_Load(this, get_monster_model_datafilename(this.model, this.skin, "sounds"), 0))
                Monster_Sounds_Load(this, get_monster_model_datafilename(this.model, 0, "sounds"), 0);
}

void Monster_Sound(entity this, .string samplefield, float sound_delay, bool delaytoo, float chan)
{
        if(!autocvar_g_monsters_sounds) { return; }

        if(delaytoo)
        if(time < this.msound_delay)
                return; // too early
        string sample = this.(samplefield);
        if (sample != "") sample = GlobalSound_sample(sample, random());
        float myscale = ((this.scale) ? this.scale : 1); // safety net
        sound7(this, chan, sample, VOL_BASE, ATTEN_NORM, 100 / myscale, 0);

        this.msound_delay = time + sound_delay;
}


// =======================
// Monster attack handlers
// =======================

bool Monster_Attack_Melee(entity this, entity targ, float damg, vector anim, float er, float animtime, int deathtype, bool dostop)
{
        if(dostop && IS_MONSTER(this)) { this.state = MONSTER_ATTACK_MELEE; }

        setanim(this, anim, false, true, false);

        if(this.animstate_endtime > time && IS_MONSTER(this))
                this.attack_finished_single[0] = this.anim_finished = this.animstate_endtime;
        else
                this.attack_finished_single[0] = this.anim_finished = time + animtime;

        traceline(this.origin + this.view_ofs, this.origin + v_forward * er, 0, this);

        if(trace_ent.takedamage)
                Damage(trace_ent, this, this, damg * MONSTER_SKILLMOD(this), deathtype, DMG_NOWEP, trace_ent.origin, normalize(trace_ent.origin - this.origin));

        return true;
}

bool Monster_Attack_Leap_Check(entity this, vector vel)
{
        if(this.state && IS_MONSTER(this))
                return false; // already attacking
        if(!IS_ONGROUND(this))
                return false; // not on the ground
        if(GetResource(this, RES_HEALTH) <= 0 || IS_DEAD(this))
                return false; // called when dead?
        if(time < this.attack_finished_single[0])
                return false; // still attacking

        vector old = this.velocity;

        this.velocity = vel;
        tracetoss(this, this);
        this.velocity = old;
        if(trace_ent != this.enemy)
                return false;

        return true;
}

bool Monster_Attack_Leap(entity this, vector anm, void(entity this, entity toucher) touchfunc, vector vel, float animtime)
{
        if(!Monster_Attack_Leap_Check(this, vel))
                return false;

        setanim(this, anm, false, true, false);

        if(this.animstate_endtime > time && IS_MONSTER(this))
                this.attack_finished_single[0] = this.anim_finished = this.animstate_endtime;
        else
                this.attack_finished_single[0] = this.anim_finished = time + animtime;

        if(IS_MONSTER(this))
                this.state = MONSTER_ATTACK_RANGED;
        settouch(this, touchfunc);
        this.origin_z += 1;
        this.velocity = vel;
        UNSET_ONGROUND(this);

        return true;
}

void Monster_Attack_Check(entity this, entity targ, .entity weaponentity)
{
        int slot = weaponslot(weaponentity);

        if((!this || !targ)
        || (!this.monster_attackfunc)
        || (game_stopped)
        || (time < this.attack_finished_single[slot])
        || ((autocvar_g_monsters_target_infront || (this.spawnflags & MONSTERFLAG_INFRONT)) && !monster_facing(this, targ))
        ) { return; }

        if(vdist(targ.origin - this.origin, <=, this.attack_range))
        {
                monster_makevectors(this, targ);
                int attack_success = this.monster_attackfunc(MONSTER_ATTACK_MELEE, this, targ, weaponentity);
                if(attack_success == 1)
                        Monster_Sound(this, monstersound_melee, 0, false, CH_VOICE);
                else if(attack_success > 0)
                        return;
        }

        if(vdist(targ.origin - this.origin, >, this.attack_range))
        {
                monster_makevectors(this, targ);
                int attack_success = this.monster_attackfunc(MONSTER_ATTACK_RANGED, this, targ, weaponentity);
                if(attack_success == 1)
                        Monster_Sound(this, monstersound_melee, 0, false, CH_VOICE);
                else if(attack_success > 0)
                        return;
        }
}


// ======================
// Main monster functions
// ======================

void Monster_UpdateModel(entity this)
{
        // assume some defaults
        /*this.anim_idle   = animfixfps(this, '0 1 0.01', '0 0 0');
        this.anim_walk   = animfixfps(this, '1 1 0.01', '0 0 0');
        this.anim_run    = animfixfps(this, '2 1 0.01', '0 0 0');
        this.anim_fire1  = animfixfps(this, '3 1 0.01', '0 0 0');
        this.anim_fire2  = animfixfps(this, '4 1 0.01', '0 0 0');
        this.anim_melee  = animfixfps(this, '5 1 0.01', '0 0 0');
        this.anim_pain1  = animfixfps(this, '6 1 0.01', '0 0 0');
        this.anim_pain2  = animfixfps(this, '7 1 0.01', '0 0 0');
        this.anim_die1   = animfixfps(this, '8 1 0.01', '0 0 0');
        this.anim_die2   = animfixfps(this, '9 1 0.01', '0 0 0');*/

        // then get the real values
        Monster mon = this.monsterdef;
        mon.mr_anim(mon, this);
}

void Monster_Touch(entity this, entity toucher)
{
        if(!toucher) { return; }

        if(toucher.monster_attack && this.enemy != toucher && !IS_MONSTER(toucher) && time >= this.spawn_time)
        if(Monster_ValidTarget(this, toucher, true))
                this.enemy = toucher;
}

void Monster_Miniboss_Check(entity this)
{
        if(MUTATOR_CALLHOOK(MonsterCheckBossFlag, this))
                return;

        float chance = random() * 100;

        // g_monsters_miniboss_chance cvar or spawnflags 64 causes a monster to be a miniboss
        if ((this.spawnflags & MONSTERFLAG_MINIBOSS) || (chance < autocvar_g_monsters_miniboss_chance))
        {
                GiveResource(this, RES_HEALTH, autocvar_g_monsters_miniboss_healthboost);
                this.effects |= EF_RED;
                if(!this.weapon)
                        this.weapon = WEP_VORTEX.m_id;
        }
}

bool Monster_Respawn_Check(entity this)
{
        if(this.deadflag == DEAD_DEAD) // don't call when monster isn't dead
        if(MUTATOR_CALLHOOK(MonsterRespawn, this))
                return true; // enabled by a mutator

        if(this.spawnflags & MONSTERFLAG_NORESPAWN)
                return false;

        if(!autocvar_g_monsters_respawn)
                return false;

        return true;
}

void Monster_Respawn(entity this) { Monster_Spawn(this, true, this.monsterdef); }

.vector pos1, pos2;

void Monster_Dead_Fade(entity this)
{
        if(Monster_Respawn_Check(this))
        {
                this.spawnflags |= MONSTERFLAG_RESPAWNED;
                setthink(this, Monster_Respawn);
                this.nextthink = time + this.respawntime;
                this.monster_lifetime = 0;
                this.deadflag = DEAD_RESPAWNING;
                if(this.spawnflags & MONSTER_RESPAWN_DEATHPOINT)
                {
                        this.pos1 = this.origin;
                        this.pos2 = this.angles;
                }
                this.event_damage = func_null;
                this.event_heal = func_null;
                this.takedamage = DAMAGE_NO;
                setorigin(this, this.pos1);
                this.angles = this.pos2;
                SetResourceExplicit(this, RES_HEALTH, this.max_health);
                setmodel(this, MDL_Null);
        }
        else
        {
                // number of monsters spawned with mobspawn command
                totalspawned -= 1;

                SUB_SetFade(this, time + 3, 1);
        }
}

void Monster_Use(entity this, entity actor, entity trigger)
{
        if(Monster_ValidTarget(this, actor, true)) { this.enemy = actor; }
}

/// Returns an origin that's near targetorigin and visible to this monster.
vector Monster_WanderTarget(entity this, vector targetorigin)
{
        vector pos, ang;

        ang_y = rint(random() * 500);
        ang_x = this.angles_x;
        ang_z = this.angles_z;
        makevectors(ang);
        pos = targetorigin + v_forward * this.wander_distance;
        if(((this.flags & FL_FLY) && (this.spawnflags & MONSTERFLAG_FLY_VERTICAL)) || (this.flags & FL_SWIM))
        {
                pos.z = random() * 200;
                if(random() >= 0.5)
                        pos.z *= -1;
        }
        // truncate movement so we don't do walking into walls animations
        traceline(this.origin + this.view_ofs, pos, MOVE_NORMAL, this);
        return trace_endpos;
}

vector Monster_Move_Target(entity this, entity targ)
{
        // enemy is always preferred target
        if(this.enemy)
        {
                vector targ_origin = ((this.enemy.absmin + this.enemy.absmax) * 0.5);
                targ_origin = WarpZone_RefSys_TransformOrigin(this.enemy, this, targ_origin); // origin of target as seen by the monster (us)

                if(this.enemy)
                {
                        /*WarpZone_TrailParticles(NULL, particleeffectnum(EFFECT_RED_PASS), this.origin, targ_origin);
                        print("Trace origin: ", vtos(targ_origin), "\n");
                        print("Target origin: ", vtos(this.enemy.origin), "\n");
                        print("My origin: ", vtos(this.origin), "\n"); */

                        this.monster_movestate = MONSTER_MOVE_ENEMY;
                        this.last_trace = time + 1.2;
                        if(this.monster_moveto)
                                return this.monster_moveto; // assumes code is properly setting this when monster has an enemy
                        else
                                return targ_origin;
                }

                /*makevectors(this.angles);
                this.monster_movestate = MONSTER_MOVE_ENEMY;
                this.last_trace = time + 1.2;
                return this.enemy.origin; */
        }

        switch(this.monster_moveflags)
        {
                case MONSTER_MOVE_FOLLOW:
                {
                        this.monster_movestate = MONSTER_MOVE_FOLLOW;
                        this.last_trace = time + 0.3;
                        if (this.monster_follow)
                        {
                                if (vdist(this.origin - this.monster_follow.origin, <, this.wander_distance))
                                        this.last_trace = time + this.wander_delay;
                                return Monster_WanderTarget(this, this.monster_follow.origin);
                        }
                        else
                                return this.origin;
                }
                case MONSTER_MOVE_SPAWNLOC:
                {
                        this.monster_movestate = MONSTER_MOVE_SPAWNLOC;
                        this.last_trace = time + 2;
                        return this.pos1;
                }
                case MONSTER_MOVE_NOMOVE:
                {
                        if(this.monster_moveto)
                        {
                                this.last_trace = time + 0.5;
                                return this.monster_moveto;
                        }
                        else
                        {
                                this.monster_movestate = MONSTER_MOVE_NOMOVE;
                                this.last_trace = time + 2;
                        }
                        return this.origin;
                }
                default:
                case MONSTER_MOVE_WANDER:
                {
                        this.monster_movestate = MONSTER_MOVE_WANDER;
                        if(this.monster_moveto)
                        {
                                this.last_trace = time + 0.5;
                                return this.monster_moveto;
                        }
                        else if(targ)
                        {
                                this.last_trace = time + 0.5;
                                return targ.origin;
                        }
                        else
                        {
                                this.last_trace = time + this.wander_delay;
                                return Monster_WanderTarget(this, this.origin);
                        }
                }
        }
}

// Check for water/slime/lava and dangerous edges
// (only when the bot is on the ground or jumping intentionally)
// returns a number > 0 for danger
// based on havocbot_checkdanger()
int Monster_CheckDanger(entity this, vector dst_ahead)
{
        float s;

        if((this.flags & FL_FLY) || (this.flags & FL_SWIM))
        {
                // Look ahead
                traceline(this.origin + this.view_ofs, dst_ahead, true, NULL);

                // Only care about the skybox if it's below
                // bones_was_here: does this even matter when flying/swimming?
                if (trace_endpos.z < this.origin.z + this.mins.z
                && trace_dphitq3surfaceflags & Q3SURFACEFLAG_SKY)
                        return 1;

                s = pointcontents(trace_endpos + '0 0 1');
                if (s != CONTENT_SOLID)
                {
                        if (s == CONTENT_LAVA || s == CONTENT_SLIME)
                                return 3;

                        if (tracebox_hits_trigger_hurt(dst_ahead, this.mins, this.maxs, trace_endpos))
                        {
                                // the traceline check isn't enough but is good as optimization,
                                // when not true (most of the time) this tracebox call is avoided
                                tracebox(this.origin + this.view_ofs, this.mins, this.maxs, dst_ahead, true, this);
                                if (tracebox_hits_trigger_hurt(dst_ahead, this.mins, this.maxs, trace_endpos))
                                        return 4;
                        }
                }
        }
        else
        {
                vector dst_down = dst_ahead - '0 0 3000';

                // Look downwards
                traceline(dst_ahead, dst_down, true, NULL);
                //te_lightning2(NULL, this.origin + this.view_ofs, dst_ahead); // Draw "ahead" look
                //te_lightning2(NULL, dst_ahead, trace_endpos); // Draw "downwards" look
                if (trace_endpos.z < this.origin.z + this.mins.z)
                {
                        if (trace_dphitq3surfaceflags & Q3SURFACEFLAG_SKY)
                                return 1;

                        // If following an enemy ignore probably-non-fatal falls,
                        // if wandering only ignore small falls.
                        if (trace_endpos.z < (this.origin.z + this.mins.z) - (this.enemy ? 1024 : 100))
                                return 2;

                        s = pointcontents(trace_endpos + '0 0 1');
                        if (s != CONTENT_SOLID)
                        {
                                if (s == CONTENT_LAVA || s == CONTENT_SLIME)
                                        return 3;

                                if (tracebox_hits_trigger_hurt(dst_ahead, this.mins, this.maxs, trace_endpos))
                                {
                                        // the traceline check isn't enough but is good as optimization,
                                        // when not true (most of the time) this tracebox call is avoided
                                        tracebox(dst_ahead, this.mins, this.maxs, dst_down, true, this);
                                        if (tracebox_hits_trigger_hurt(dst_ahead, this.mins, this.maxs, trace_endpos))
                                                return 4;
                                }
                        }
                }
        }

        return 0;
}

.entity draggedby;
void Monster_Move(entity this, float runspeed, float walkspeed, float stpspeed)
{
        // update goal entity if lost
        if(this.target2 && this.target2 != "" && this.goalentity.targetname != this.target2)
                this.goalentity = find(NULL, targetname, this.target2);

        if(STAT(FROZEN, this))
        {
                movelib_brake_simple(this, stpspeed);
                setanim(this, this.anim_idle, true, false, false);
                return; // no physics while frozen!
        }

        if(this.flags & FL_SWIM)
        {
                if(this.waterlevel < WATERLEVEL_WETFEET)
                {
                        if(time >= this.last_trace)
                        {
                                this.last_trace = time + 0.4;

                                Damage (this, NULL, NULL, 2, DEATH_DROWN.m_id, DMG_NOWEP, this.origin, '0 0 0');
                                this.angles = '90 90 0';
                                if(random() < 0.5)
                                {
                                        this.velocity_y += random() * 50;
                                        this.velocity_x -= random() * 50;
                                }
                                else
                                {
                                        this.velocity_y -= random() * 50;
                                        this.velocity_x += random() * 50;
                                }
                                this.velocity_z += random() * 150;
                        }


                        set_movetype(this, MOVETYPE_BOUNCE);
                        //this.velocity_z = -200;

                        return;
                }
                else if(this.move_movetype == MOVETYPE_BOUNCE)
                {
                        this.angles_x = 0;
                        set_movetype(this, MOVETYPE_WALK);
                }
        }

        entity targ = this.goalentity;

        if (MUTATOR_CALLHOOK(MonsterMove, this, runspeed, walkspeed, targ)
                || game_stopped
                || this.draggedby != NULL
                || (round_handler_IsActive() && !round_handler_IsRoundStarted())
                || time < game_starttime
                || (autocvar_g_campaign && !campaign_bots_may_start)
                || time < this.spawn_time)
        {
                runspeed = walkspeed = 0;
                if(time >= this.spawn_time)
                        setanim(this, this.anim_idle, true, false, false);
                movelib_brake_simple(this, stpspeed);
                return;
        }

        targ = M_ARGV(3, entity);
        runspeed = bound(0, M_ARGV(1, float) * MONSTER_SKILLMOD(this), runspeed * 2.5); // limit maxspeed to prevent craziness
        walkspeed = bound(0, M_ARGV(2, float) * MONSTER_SKILLMOD(this), walkspeed * 2.5); // limit maxspeed to prevent craziness

        if(teamplay && autocvar_g_monsters_teams)
        if(DIFF_TEAM(this.monster_follow, this))
                this.monster_follow = NULL;

        if(this.state == MONSTER_ATTACK_RANGED && IS_ONGROUND(this))
        {
                this.state = 0;
                settouch(this, Monster_Touch);
        }

        if(this.state && time >= this.attack_finished_single[0])
                this.state = 0; // attack is over

// Select destination
        if(this.state != MONSTER_ATTACK_MELEE) // don't move if set
        if(time >= this.last_trace || this.enemy) // update enemy or rider instantly
                this.moveto = Monster_Move_Target(this, targ);

        if(!this.enemy)
                Monster_Sound(this, monstersound_idle, 7, true, CH_VOICE);

        if(this.state == MONSTER_ATTACK_MELEE)
                this.moveto = this.origin;

        if(this.enemy && this.enemy.vehicle)
                runspeed = 0;

        if(!(this.spawnflags & MONSTERFLAG_FLY_VERTICAL) && !(this.flags & FL_SWIM))
                this.moveto_z = this.origin_z;

// Steer towards destination
        this.steerto = steerlib_attract2(this, ((this.monster_face) ? this.monster_face : this.moveto), 0.5, 500, 0.95);
        vector real_angle = vectoangles(this.steerto) - this.angles;
        float turny = 25;
        if(this.state == MONSTER_ATTACK_MELEE)
                turny = 0;
        if(turny)
        {
                turny = bound(turny * -1, shortangle_f(real_angle.y, this.angles.y), turny);
                this.angles_y += turny;
        }

// Update velocity
        fixedmakevectors(this.angles);
        float vz = this.velocity_z;

        // Check for danger ahead
        float bboxwidth = min(this.maxs_x - this.mins_x, this.maxs_y - this.mins_y);
        int danger = Monster_CheckDanger(this, this.origin + this.view_ofs
                + (vdist(this.velocity, >, bboxwidth * 5) ? this.velocity * 0.2 : v_forward * bboxwidth));

        if(!danger && !turret_closetotarget(this, this.moveto, 16))
        {
                bool do_run = (this.enemy || this.monster_moveto);
                movelib_move_simple(this, v_forward, ((do_run) ? runspeed : walkspeed), 0.4);

                if(time > this.pain_finished && time > this.anim_finished)
                if(!this.state)
                {
                        if(vdist(this.velocity, >, 10))
                                setanim(this, ((do_run) ? this.anim_run : this.anim_walk), true, false, false);
                        else
                                setanim(this, this.anim_idle, true, false, false);
                }
        }
        else
        {
                entity e = this.goalentity; //find(NULL, targetname, this.target2);
                if(e.target2 && e.target2 != "")
                        this.target2 = e.target2;
                else if(e.target && e.target != "") // compatibility
                        this.target2 = e.target;

                movelib_brake_simple(this, stpspeed);
                if(time > this.anim_finished && time > this.pain_finished)
                if(!this.state)
                if(vdist(this.velocity, <=, 30))
                        setanim(this, this.anim_idle, true, false, false);
        }

        if(!((this.flags & FL_FLY) || (this.flags & FL_SWIM)))
                this.velocity_z = vz;

// If this path is dangerous try to find a different one next frame
        if (danger)
        {
                this.last_trace = time + 0.3;
                this.moveto = Monster_WanderTarget(this, this.origin);
        }
}

void Monster_Remove(entity this)
{
        if(IS_CLIENT(this))
                return; // don't remove it?

        if(!this) { return; }

        if(!MUTATOR_CALLHOOK(MonsterRemove, this))
                Send_Effect(EFFECT_ITEM_PICKUP, this.origin, '0 0 0', 1);

        for(int slot = 0; slot < MAX_WEAPONSLOTS; ++slot)
        {
                .entity weaponentity = weaponentities[slot];
                if(this.(weaponentity))
                        delete(this.(weaponentity));
        }
        if(this.iceblock) { delete(this.iceblock); }
        WaypointSprite_Kill(this.sprite);
        delete(this);
}

void Monster_Dead_Think(entity this)
{
        this.nextthink = time + this.ticrate;

        Monster mon = REGISTRY_GET(Monsters, this.monsterid);
        mon.mr_deadthink(mon, this);

        if(this.monster_lifetime != 0)
        if(time >= this.monster_lifetime)
        {
                Monster_Dead_Fade(this);
                return;
        }
}

void Monster_Appear(entity this, entity actor, entity trigger)
{
        this.enemy = actor;
        Monster_Spawn(this, false, this.monsterdef);
}

bool Monster_Appear_Check(entity this, Monster monster_id)
{
        if(!(this.spawnflags & MONSTERFLAG_APPEAR))
                return false;

        setthink(this, func_null);
        this.monsterdef = monster_id; // set so this monster is properly registered (otherwise, normal initialization is used)
        this.nextthink = 0;
        this.use = Monster_Appear;
        this.flags = FL_MONSTER; // set so this monster can get butchered

        return true;
}

void Monster_Reset(entity this)
{
        if(this.spawnflags & MONSTERFLAG_SPAWNED)
        {
                Monster_Remove(this);
                return;
        }

        setorigin(this, this.pos1);
        this.angles = this.pos2;

        Unfreeze(this, false); // remove any icy remains

        SetResourceExplicit(this, RES_HEALTH, this.max_health);
        this.velocity = '0 0 0';
        this.enemy = NULL;
        this.goalentity = NULL;
        this.attack_finished_single[0] = 0;
        this.moveto = this.origin;
}

void Monster_Dead_Damage(entity this, entity inflictor, entity attacker, float damage, int deathtype, .entity weaponentity, vector hitloc, vector force)
{
        TakeResource(this, RES_HEALTH, damage);

        Violence_GibSplash_At(hitloc, force, 2, bound(0, damage, 200) / 16, this, attacker);

        if(GetResource(this, RES_HEALTH) <= -50) // 100 health until gone?
        {
                Violence_GibSplash_At(hitloc, force, 2, bound(0, damage, 200) / 16, this, attacker);

                // number of monsters spawned with mobspawn command
                totalspawned -= 1;

                setthink(this, SUB_Remove);
                this.nextthink = time + 0.1;
                this.event_damage = func_null;
        }
}

void Monster_Dead(entity this, entity attacker, float gibbed)
{
        setthink(this, Monster_Dead_Think);
        this.nextthink = time;
        this.monster_lifetime = time + 5;

        if(STAT(FROZEN, this))
                Unfreeze(this, false); // remove any icy remains

        monster_dropitem(this, attacker);

        Monster_Sound(this, monstersound_death, 0, false, CH_VOICE);

        if(!(this.spawnflags & MONSTERFLAG_SPAWNED) && !(this.spawnflags & MONSTERFLAG_RESPAWNED))
                monsters_killed += 1;

        if(IS_PLAYER(attacker))
        if(autocvar_g_monsters_score_spawned || !((this.spawnflags & MONSTERFLAG_SPAWNED) || (this.spawnflags & MONSTERFLAG_RESPAWNED)))
                GameRules_scoring_add(attacker, SCORE, +autocvar_g_monsters_score_kill);

        if(gibbed)
        {
                // number of monsters spawned with mobspawn command
                totalspawned -= 1;
        }

        if(!gibbed && this.mdl_dead && this.mdl_dead != "")
                _setmodel(this, this.mdl_dead);

        this.event_damage       = ((gibbed) ? func_null : Monster_Dead_Damage);
        this.event_heal         = func_null;
        this.solid                      = SOLID_CORPSE;
        this.takedamage         = DAMAGE_AIM;
        this.deadflag           = DEAD_DEAD;
        this.enemy                      = NULL;
        set_movetype(this, MOVETYPE_TOSS);
        this.moveto                     = this.origin;
        settouch(this, Monster_Touch); // reset incase monster was pouncing
        this.reset                      = func_null;
        this.state                      = 0;
        this.attack_finished_single[0] = 0;
        this.effects = 0;
        this.dphitcontentsmask &= ~DPCONTENTS_BODY;

        if(!((this.flags & FL_FLY) || (this.flags & FL_SWIM)))
                this.velocity = '0 0 0';

        CSQCModel_UnlinkEntity(this);

        Monster mon = this.monsterdef;
        mon.mr_death(mon, this);

        if(this.candrop && this.weapon && autocvar_g_monsters_drop)
        {
                .entity weaponentity = weaponentities[0]; // TODO: unhardcode
                W_ThrowNewWeapon(this, this.weapon, 0, this.origin, randomvec() * 150 + '0 0 325', weaponentity);
        }
}

void Monster_Damage(entity this, entity inflictor, entity attacker, float damage, int deathtype, .entity weaponentity, vector hitloc, vector force)
{
        if((this.spawnflags & MONSTERFLAG_INVINCIBLE) && deathtype != DEATH_KILL.m_id && !ITEM_DAMAGE_NEEDKILL(deathtype))
                return;

        if(STAT(FROZEN, this) && deathtype != DEATH_KILL.m_id && deathtype != DEATH_NADE_ICE_FREEZE.m_id)
                return;

        //if(time < this.pain_finished && deathtype != DEATH_KILL.m_id)
                //return;

        if(StatusEffects_active(STATUSEFFECT_SpawnShield, this) && deathtype != DEATH_KILL.m_id)
                return;

        if(deathtype == DEATH_FALL.m_id && this.draggedby != NULL)
                return;

        vector v = healtharmor_applydamage(100, GetResource(this, RES_ARMOR) / 100, deathtype, damage);
        float take = v.x;
        //float save = v.y;

        Monster mon = this.monsterdef;
        take = mon.mr_pain(mon, this, take, attacker, deathtype);

        if(take)
        {
                TakeResource(this, RES_HEALTH, take);
                Monster_Sound(this, monstersound_pain, 1.2, true, CH_PAIN);
        }

        if(this.sprite)
                WaypointSprite_UpdateHealth(this.sprite, GetResource(this, RES_HEALTH));

        this.dmg_time = time;

        if(deathtype != DEATH_DROWN.m_id && deathtype != DEATH_FIRE.m_id && sound_allowed(MSG_BROADCAST, attacker))
                spamsound (this, CH_PAIN, SND_BODYIMPACT1, VOL_BASE, ATTEN_NORM);  // FIXME: PLACEHOLDER

        this.velocity += force * this.damageforcescale;

        if(deathtype != DEATH_DROWN.m_id && take)
        {
                Violence_GibSplash_At(hitloc, force, 2, bound(0, take, 200) / 16, this, attacker);
                if (take > 50)
                        Violence_GibSplash_At(hitloc, force * -0.1, 3, 1, this, attacker);
                if (take > 100)
                        Violence_GibSplash_At(hitloc, force * -0.2, 3, 1, this, attacker);
        }

        if(GetResource(this, RES_HEALTH) <= 0)
        {
                if(deathtype == DEATH_KILL.m_id)
                        this.candrop = false; // killed by mobkill command

                // TODO: fix this?
                SUB_UseTargets(this, attacker, this.enemy);
                this.target2 = this.oldtarget2; // reset to original target on death, incase we respawn

                Monster_Dead(this, attacker, (GetResource(this, RES_HEALTH) <= -100 || deathtype == DEATH_KILL.m_id));

                WaypointSprite_Kill(this.sprite);

                MUTATOR_CALLHOOK(MonsterDies, this, attacker, deathtype);

                if(GetResource(this, RES_HEALTH) <= -100 || deathtype == DEATH_KILL.m_id) // check if we're already gibbed
                {
                        Violence_GibSplash(this, 1, 0.5, attacker);

                        setthink(this, SUB_Remove);
                        this.nextthink = time + 0.1;
                }
        }
}

bool Monster_Heal(entity targ, entity inflictor, float amount, float limit)
{
        float true_limit = ((limit != RES_LIMIT_NONE) ? limit : targ.max_health);
        if(GetResource(targ, RES_HEALTH) <= 0 || GetResource(targ, RES_HEALTH) >= true_limit)
                return false;

        GiveResourceWithLimit(targ, RES_HEALTH, amount, true_limit);
        if(targ.sprite)
                WaypointSprite_UpdateHealth(targ.sprite, GetResource(targ, RES_HEALTH));
        return true;
}

// don't check for enemies, just keep walking in a straight line
void Monster_Move_2D(entity this, float mspeed, bool allow_jumpoff)
{
        if(game_stopped || (round_handler_IsActive() && !round_handler_IsRoundStarted()) || this.draggedby != NULL || time < game_starttime || (autocvar_g_campaign && !campaign_bots_may_start) || time < this.spawn_time)
        {
                mspeed = 0;
                if(time >= this.spawn_time)
                        setanim(this, this.anim_idle, true, false, false);
                movelib_brake_simple(this, 0.6);
                return;
        }

        makevectors(this.angles);
        vector a = CENTER_OR_VIEWOFS(this);
        vector b = CENTER_OR_VIEWOFS(this) + v_forward * 32;

        traceline(a, b, MOVE_NORMAL, this);

        bool reverse = false;
        if(trace_fraction != 1.0)
                reverse = true;
        if(trace_ent && IS_PLAYER(trace_ent))
                reverse = false;
        if(trace_ent && IS_MONSTER(trace_ent))
                reverse = true;

        if(!allow_jumpoff && IS_ONGROUND(this))
        {
                traceline(b, b - '0 0 32', MOVE_NORMAL, this);
                if(trace_fraction == 1.0)
                        reverse = true;
        }

        if(reverse)
        {
                this.angles_y = anglemods(this.angles_y - 180);
                makevectors(this.angles);
        }

        movelib_move_simple_gravity(this, v_forward, mspeed, 1);

        if(time > this.pain_finished && time > this.attack_finished_single[0])
        {
                if(vdist(this.velocity, >, 10))
                        setanim(this, this.anim_walk, true, false, false);
                else
                        setanim(this, this.anim_idle, true, false, false);
        }
}

void Monster_Anim(entity this)
{
        int deadbits = (this.anim_state & (ANIMSTATE_DEAD1 | ANIMSTATE_DEAD2));
        if(IS_DEAD(this))
        {
                if (!deadbits)
                {
                        // Decide on which death animation to use.
                        if(random() < 0.5)
                                deadbits = ANIMSTATE_DEAD1;
                        else
                                deadbits = ANIMSTATE_DEAD2;
                }
        }
        else
        {
                // Clear a previous death animation.
                deadbits = 0;
        }
        int animbits = deadbits;
        if(STAT(FROZEN, this))
                animbits |= ANIMSTATE_FROZEN;
        if(IS_DUCKED(this))
                animbits |= ANIMSTATE_DUCK; // not that monsters can crouch currently...
        animdecide_setstate(this, animbits, false);
        animdecide_setimplicitstate(this, (IS_ONGROUND(this)));

        /* // weapon entities for monsters?
        if (this.weaponentity)
        {
                updateanim(this.weaponentity);
                if (!this.weaponentity.animstate_override)
                        setanim(this.weaponentity, this.weaponentity.anim_idle, true, false, false);
        }
        */
}

void Monster_Frozen_Think(entity this)
{
        if (STAT(FROZEN, this) == FROZEN_TEMP_REVIVING)
        {
                STAT(REVIVE_PROGRESS, this) = bound(0, STAT(REVIVE_PROGRESS, this) + this.ticrate * this.revive_speed, 1);
                SetResourceExplicit(this, RES_HEALTH, max(1, STAT(REVIVE_PROGRESS, this) * this.max_health));
                if (this.iceblock)
                        this.iceblock.alpha = bound(0.2, 1 - STAT(REVIVE_PROGRESS, this), 1);

                if(!(this.spawnflags & MONSTERFLAG_INVINCIBLE) && this.sprite)
                        WaypointSprite_UpdateHealth(this.sprite, GetResource(this, RES_HEALTH));

                if(STAT(REVIVE_PROGRESS, this) >= 1)
                        Unfreeze(this, false);
        }
        else if (STAT(FROZEN, this) == FROZEN_TEMP_DYING)
        {
                STAT(REVIVE_PROGRESS, this) = bound(0, STAT(REVIVE_PROGRESS, this) - this.ticrate * this.revive_speed, 1);
                SetResourceExplicit(this, RES_HEALTH, max(0, autocvar_g_nades_ice_health + (this.max_health-autocvar_g_nades_ice_health) * STAT(REVIVE_PROGRESS, this)));

                if(!(this.spawnflags & MONSTERFLAG_INVINCIBLE) && this.sprite)
                        WaypointSprite_UpdateHealth(this.sprite, GetResource(this, RES_HEALTH));

                if(GetResource(this, RES_HEALTH) < 1)
                {
                        Unfreeze(this, false);
                        if(this.event_damage)
                                this.event_damage(this, this, this.frozen_by, 1, DEATH_NADE_ICE_FREEZE.m_id, DMG_NOWEP, this.origin, '0 0 0');
                }
                else if ( STAT(REVIVE_PROGRESS, this) <= 0 )
                        Unfreeze(this, false);
        }
        // otherwise, no revival!

        this.enemy = NULL; // TODO: save enemy, and attack when revived?
}

void Monster_Enemy_Check(entity this)
{
        if(this.enemy)
        {
                vector targ_origin = ((this.enemy.absmin + this.enemy.absmax) * 0.5);
                targ_origin = WarpZone_RefSys_TransformOrigin(this.enemy, this, targ_origin); // origin of target as seen by the monster (us)
                WarpZone_TraceLine(this.origin, targ_origin, MOVE_NOMONSTERS, this);

                // cases where the enemy may have changed their state (don't need to check everything here)
                if(    (IS_DEAD(this.enemy) || GetResource(this.enemy, RES_HEALTH) < 1)
                        || (STAT(FROZEN, this.enemy))
                        || (this.enemy.flags & FL_NOTARGET)
                        || (this.enemy.alpha < 0.5 && this.enemy.alpha != 0)
                        || (this.enemy.takedamage == DAMAGE_NO)
                        || (vdist(this.origin - targ_origin, >, this.target_range))
                        || ((trace_fraction < 1) && (trace_ent != this.enemy))
                        )
                {
                        this.enemy = NULL;
                }
                else
                {
                        return;
                }
        }

        this.enemy = Monster_FindTarget(this);
        if(this.enemy)
        {
                WarpZone_RefSys_Copy(this.enemy, this);
                WarpZone_RefSys_AddInverse(this.enemy, this); // wz1^-1 ... wzn^-1 receiver
                // update move target immediately?
                this.moveto = WarpZone_RefSys_TransformOrigin(this.enemy, this, (0.5 * (this.enemy.absmin + this.enemy.absmax)));
                this.monster_moveto = '0 0 0';
                this.monster_face = '0 0 0';

                Monster_Sound(this, monstersound_sight, 0, false, CH_VOICE);
        }
}

void Monster_Think(entity this)
{
        setthink(this, Monster_Think);
        this.nextthink = time + this.ticrate;

        if(this.monster_lifetime && time >= this.monster_lifetime)
        {
                Damage(this, this, this, GetResource(this, RES_HEALTH) + this.max_health, DEATH_KILL.m_id, DMG_NOWEP, this.origin, this.origin);
                return;
        }

        if(STAT(FROZEN, this))
                Monster_Frozen_Think(this);
        else if(time >= this.last_enemycheck)
        {
                Monster_Enemy_Check(this);
                this.last_enemycheck = time + 1; // check for enemies every second
        }

        Monster mon = this.monsterdef;
        if(mon.mr_think(mon, this))
        {
                Monster_Move(this, this.speed2, this.speed, this.stopspeed);

                .entity weaponentity = weaponentities[0]; // TODO?
                Monster_Attack_Check(this, this.enemy, weaponentity);
        }

        Monster_Anim(this);

        CSQCMODEL_AUTOUPDATE(this);
}

bool Monster_Spawn_Setup(entity this)
{
        Monster mon = this.monsterdef;
        mon.mr_setup(mon, this);

        // ensure some basic needs are met
        if(!GetResource(this, RES_HEALTH)) { SetResourceExplicit(this, RES_HEALTH, 100); }
        if(!GetResource(this, RES_ARMOR)) { SetResourceExplicit(this, RES_ARMOR, bound(0.2, 0.5 * MONSTER_SKILLMOD(this), 0.9)); }
        if(!this.target_range) { this.target_range = autocvar_g_monsters_target_range; }
        if(!this.respawntime) { this.respawntime = autocvar_g_monsters_respawn_delay; }
        if(!this.monster_moveflags) { this.monster_moveflags = MONSTER_MOVE_WANDER; }
        if(!this.attack_range) { this.attack_range = autocvar_g_monsters_attack_range; }
        if(!this.damageforcescale) { this.damageforcescale = autocvar_g_monsters_damageforcescale; }

        if(!(this.spawnflags & MONSTERFLAG_RESPAWNED))
        {
                Monster_Miniboss_Check(this);
                SetResourceExplicit(this, RES_HEALTH, GetResource(this, RES_HEALTH) * MONSTER_SKILLMOD(this));

                if(!this.skin)
                        this.skin = rint(random() * 4);
        }

        this.max_health = GetResource(this, RES_HEALTH);
        this.pain_finished = this.nextthink;
        this.last_enemycheck = this.spawn_time + random(); // slight delay

        if(IS_PLAYER(this.monster_follow))
                this.effects |= EF_DIMLIGHT;

        if(!this.wander_delay) { this.wander_delay = 2; }
        if(!this.wander_distance) { this.wander_distance = 600; }

        Monster_Sounds_Precache(this);
        Monster_Sounds_Update(this);

        if(teamplay)
        {
                if(!this.monster_attack)
                        IL_PUSH(g_monster_targets, this);
                this.monster_attack = true; // we can have monster enemies in team games
        }

        Monster_Sound(this, monstersound_spawn, 0, false, CH_VOICE);

        if(autocvar_g_monsters_healthbars)
        {
                entity wp = WaypointSprite_Spawn(WP_Monster, 0, 1024, this, '0 0 1' * (this.maxs.z + 15), NULL, this.team, this, sprite, true, RADARICON_DANGER);
                wp.wp_extra = this.monsterdef.monsterid;
                wp.colormod = ((this.team) ? Team_ColorRGB(this.team) : '1 0 0');
                if(!(this.spawnflags & MONSTERFLAG_INVINCIBLE))
                {
                        WaypointSprite_UpdateMaxHealth(this.sprite, this.max_health);
                        WaypointSprite_UpdateHealth(this.sprite, GetResource(this, RES_HEALTH));
                }
        }

        setthink(this, Monster_Think);
        this.nextthink = time + this.ticrate;

        if(MUTATOR_CALLHOOK(MonsterSpawn, this))
                return false;

        return true;
}

bool Monster_Spawn(entity this, bool check_appear, Monster mon)
{
        // setup the basic required properties for a monster

        if(!mon || mon == MON_Null) { return false; } // invalid monster
        if(!autocvar_g_monsters) { Monster_Remove(this); return false; }

        if(!(this.spawnflags & MONSTERFLAG_RESPAWNED) && !(this.flags & FL_MONSTER))
        {
                IL_PUSH(g_monsters, this);
                if(this.mdl && this.mdl != "")
                        precache_model(this.mdl);
                if(this.mdl_dead && this.mdl_dead != "")
                        precache_model(this.mdl_dead);
        }

        if(check_appear && Monster_Appear_Check(this, mon)) { return true; } // return true so the monster isn't removed

        if(!this.monster_skill)
                this.monster_skill = cvar("g_monsters_skill");

        // support for quake style removing monsters based on skill
        if(this.monster_skill == MONSTER_SKILL_EASY) if(this.spawnflags & MONSTERSKILL_NOTEASY) { Monster_Remove(this); return false; }
        if(this.monster_skill == MONSTER_SKILL_MEDIUM) if(this.spawnflags & MONSTERSKILL_NOTMEDIUM) { Monster_Remove(this); return false; }
        if(this.monster_skill == MONSTER_SKILL_HARD) if(this.spawnflags & MONSTERSKILL_NOTHARD) { Monster_Remove(this); return false; }

        if(this.team && !teamplay)
                this.team = 0;

        if(!(this.spawnflags & MONSTERFLAG_SPAWNED)) // naturally spawned monster
        if(!(this.spawnflags & MONSTERFLAG_RESPAWNED)) // don't count re-spawning monsters either
                monsters_total += 1;

        if(this.mdl && this.mdl != "")
                _setmodel(this, this.mdl);
        else
                setmodel(this, mon.m_model);

        if(!this.monster_name || this.monster_name == "")
                this.monster_name = mon.monster_name;

        if(this.statuseffects && this.statuseffects.owner == this)
        {
                StatusEffects_clearall(this.statuseffects);
                StatusEffects_update(this);
        }
        else
                this.statuseffects = NULL;

        this.flags                              = FL_MONSTER;
        this.classname                  = "monster";
        this.takedamage                 = DAMAGE_AIM;
        if(!this.bot_attack)
                IL_PUSH(g_bot_targets, this);
        this.bot_attack                 = true;
        this.iscreature                 = true;
        this.teleportable               = true;
        if(!this.damagedbycontents)
                IL_PUSH(g_damagedbycontents, this);
        this.damagedbycontents  = true;
        this.monsterdef                 = mon;
        this.event_damage               = Monster_Damage;
        this.event_heal                 = Monster_Heal;
        settouch(this, Monster_Touch);
        this.use                                = Monster_Use;
        this.solid                              = SOLID_BBOX;
        set_movetype(this, MOVETYPE_WALK);
        StatusEffects_apply(STATUSEFFECT_SpawnShield, this, time + autocvar_g_monsters_spawnshieldtime, 0);
        this.enemy                              = NULL;
        this.velocity                   = '0 0 0';
        this.moveto                             = this.origin;
        this.pos1                               = this.origin;
        this.pos2                               = this.angles;
        this.reset                              = Monster_Reset;
        this.netname                    = mon.netname;
        this.monster_attackfunc = mon.monster_attackfunc;
        this.candrop                    = true;
        this.oldtarget2                 = this.target2;
        this.deadflag                   = DEAD_NO;
        this.spawn_time                 = time;
        this.gravity                    = 1;
        this.monster_moveto             = '0 0 0';
        this.monster_face               = '0 0 0';
        this.dphitcontentsmask  = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_BOTCLIP | DPCONTENTS_MONSTERCLIP;

        if(!this.noalign) { this.noalign = ((mon.spawnflags & MONSTER_TYPE_FLY) || (mon.spawnflags & MONSTER_TYPE_SWIM)); }
        if(!this.scale) { this.scale = 1; }
        if(autocvar_g_monsters_edit) { this.grab = 1; }
        if(autocvar_g_fullbrightplayers) { this.effects |= EF_FULLBRIGHT; }
        if(autocvar_g_nodepthtestplayers) { this.effects |= EF_NODEPTHTEST; }
        if(mon.spawnflags & MONSTER_TYPE_SWIM) { this.flags |= FL_SWIM; }

        if(autocvar_g_monsters_playerclip_collisions)
                this.dphitcontentsmask |= DPCONTENTS_PLAYERCLIP;

        if(mon.spawnflags & MONSTER_TYPE_FLY)
        {
                this.flags |= FL_FLY;
                set_movetype(this, MOVETYPE_FLY);
        }

        if((mon.spawnflags & MONSTER_SIZE_QUAKE) && autocvar_g_monsters_quake_resize && !(this.spawnflags & MONSTERFLAG_RESPAWNED))
                this.scale *= 1.3;

        setsize(this, RoundPerfectVector(mon.m_mins * this.scale), RoundPerfectVector(mon.m_maxs * this.scale));
        this.view_ofs                   = '0 0 0.7' * (this.maxs_z * 0.5);

        this.ticrate = bound(sys_frametime, ((!this.ticrate) ? autocvar_g_monsters_think_delay : this.ticrate), 60);

        Monster_UpdateModel(this);

        if(!Monster_Spawn_Setup(this))
        {
                Monster_Remove(this);
                return false;
        }

        if(!this.noalign)
        {
                setorigin(this, this.origin + '0 0 20');
                tracebox(this.origin + '0 0 64', this.mins, this.maxs, this.origin - '0 0 10000', MOVE_WORLDONLY, this);
                setorigin(this, trace_endpos);
        }

        if(!(this.spawnflags & MONSTERFLAG_RESPAWNED))
                monster_setupcolors(this);

        CSQCMODEL_AUTOINIT(this);

        return true;
}