// Copyright (c) ZeniMax Media Inc.
// Licensed under the GNU General Public License 2.0.
/*
==============================================================================

GUNNER

==============================================================================
*/

#include "g_local.h"
#include "m_gunner.h"
#include "m_flash.h"

static int sound_pain;
static int sound_pain2;
static int sound_death;
static int sound_idle;
static int sound_open;
static int sound_search;
static int sound_sight;

void gunner_idlesound(edict_t *self)
{
	gi.sound(self, CHAN_VOICE, sound_idle, 1, ATTN_IDLE, 0);
}

MONSTERINFO_SIGHT(gunner_sight) (edict_t *self, edict_t *other) -> void
{
	gi.sound(self, CHAN_VOICE, sound_sight, 1, ATTN_NORM, 0);
}

MONSTERINFO_SEARCH(gunner_search) (edict_t *self) -> void
{
	gi.sound(self, CHAN_VOICE, sound_search, 1, ATTN_NORM, 0);
}

void GunnerGrenade(edict_t *self);
void GunnerFire(edict_t *self);
void gunner_fire_chain(edict_t *self);
void gunner_refire_chain(edict_t *self);

void gunner_stand(edict_t *self);

mframe_t gunner_frames_fidget[] = {
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand, 0, gunner_idlesound },
	{ ai_stand },

	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },

	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },

	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },

	{ ai_stand }
};
MMOVE_T(gunner_move_fidget) = { FRAME_stand31, FRAME_stand70, gunner_frames_fidget, gunner_stand };

void gunner_fidget(edict_t *self)
{
	if (self->monsterinfo.aiflags & AI_STAND_GROUND)
		return;
	else if (self->enemy)
		return;
	if (frandom() <= 0.05f)
		M_SetAnimation(self, &gunner_move_fidget);
}

mframe_t gunner_frames_stand[] = {
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand, 0, gunner_fidget },

	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand, 0, gunner_fidget },

	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand },
	{ ai_stand, 0, gunner_fidget }
};
MMOVE_T(gunner_move_stand) = { FRAME_stand01, FRAME_stand30, gunner_frames_stand, nullptr };

MONSTERINFO_STAND(gunner_stand) (edict_t *self) -> void
{
	M_SetAnimation(self, &gunner_move_stand);
}

mframe_t gunner_frames_walk[] = {
	{ ai_walk },
	{ ai_walk, 3 },
	{ ai_walk, 4 },
	{ ai_walk, 5 },
	{ ai_walk, 7 },
	{ ai_walk, 2, monster_footstep },
	{ ai_walk, 6 },
	{ ai_walk, 4 },
	{ ai_walk, 2 },
	{ ai_walk, 7 },
	{ ai_walk, 5 },
	{ ai_walk, 7 },
	{ ai_walk, 4, monster_footstep }
};
MMOVE_T(gunner_move_walk) = { FRAME_walk07, FRAME_walk19, gunner_frames_walk, nullptr };

MONSTERINFO_WALK(gunner_walk) (edict_t *self) -> void
{
	M_SetAnimation(self, &gunner_move_walk);
}

mframe_t gunner_frames_run[] = {
	{ ai_run, 26 },
	{ ai_run, 9, monster_footstep },
	{ ai_run, 9 },
	{ ai_run, 9, monster_done_dodge },
	{ ai_run, 15 },
	{ ai_run, 10, monster_footstep },
	{ ai_run, 13 },
	{ ai_run, 6 }
};

MMOVE_T(gunner_move_run) = { FRAME_run01, FRAME_run08, gunner_frames_run, nullptr };

MONSTERINFO_RUN(gunner_run) (edict_t *self) -> void
{
	monster_done_dodge(self);
	if (self->monsterinfo.aiflags & AI_STAND_GROUND)
		M_SetAnimation(self, &gunner_move_stand);
	else
		M_SetAnimation(self, &gunner_move_run);
}

mframe_t gunner_frames_runandshoot[] = {
	{ ai_run, 32 },
	{ ai_run, 15 },
	{ ai_run, 10 },
	{ ai_run, 18 },
	{ ai_run, 8 },
	{ ai_run, 20 }
};

MMOVE_T(gunner_move_runandshoot) = { FRAME_runs01, FRAME_runs06, gunner_frames_runandshoot, nullptr };

void gunner_runandshoot(edict_t *self)
{
	M_SetAnimation(self, &gunner_move_runandshoot);
}

mframe_t gunner_frames_pain3[] = {
	{ ai_move, -3 },
	{ ai_move, 1 },
	{ ai_move, 1 },
	{ ai_move },
	{ ai_move, 1 }
};
MMOVE_T(gunner_move_pain3) = { FRAME_pain301, FRAME_pain305, gunner_frames_pain3, gunner_run };

mframe_t gunner_frames_pain2[] = {
	{ ai_move, -2 },
	{ ai_move, 11 },
	{ ai_move, 6, monster_footstep },
	{ ai_move, 2 },
	{ ai_move, -1 },
	{ ai_move, -7 },
	{ ai_move, -2 },
	{ ai_move, -7, monster_footstep }
};
MMOVE_T(gunner_move_pain2) = { FRAME_pain201, FRAME_pain208, gunner_frames_pain2, gunner_run };

mframe_t gunner_frames_pain1[] = {
	{ ai_move, 2 },
	{ ai_move },
	{ ai_move, -5 },
	{ ai_move, 3 },
	{ ai_move, -1, monster_footstep },
	{ ai_move },
	{ ai_move },
	{ ai_move },
	{ ai_move },
	{ ai_move, 1 },
	{ ai_move, 1 },
	{ ai_move, 2 },
	{ ai_move, 1, monster_footstep },
	{ ai_move },
	{ ai_move, -2 },
	{ ai_move, -2 },
	{ ai_move },
	{ ai_move, 0, monster_footstep }
};
MMOVE_T(gunner_move_pain1) = { FRAME_pain101, FRAME_pain118, gunner_frames_pain1, gunner_run };

extern const mmove_t gunner_move_jump;
extern const mmove_t gunner_move_jump2;

PAIN(gunner_pain) (edict_t *self, edict_t *other, float kick, int damage, const mod_t &mod) -> void
{
	monster_done_dodge(self);
	
	if (self->monsterinfo.active_move == &gunner_move_jump || 
		self->monsterinfo.active_move == &gunner_move_jump2)
		return;

	if (level.time < self->pain_debounce_time)
		return;

	self->pain_debounce_time = level.time + 3_sec;

	if (brandom())
		gi.sound(self, CHAN_VOICE, sound_pain, 1, ATTN_NORM, 0);
	else
		gi.sound(self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);

	if (!M_ShouldReactToPain(self, mod))
		return; // no pain anims in nightmare

	if (damage <= 10)
		M_SetAnimation(self, &gunner_move_pain3);
	else if (damage <= 25)
		M_SetAnimation(self, &gunner_move_pain2);
	else
		M_SetAnimation(self, &gunner_move_pain1);

	self->monsterinfo.aiflags &= ~AI_MANUAL_STEERING;

	// PMM - clear duck flag
	if (self->monsterinfo.aiflags & AI_DUCKED)
		monster_duck_up(self);
}

MONSTERINFO_SETSKIN(gunner_setskin) (edict_t *self) -> void
{
	if (self->health < (self->max_health / 2))
		self->s.skinnum = 1;
	else
		self->s.skinnum = 0;
}

void gunner_dead(edict_t *self)
{
	self->mins = { -16, -16, -24 };
	self->maxs = { 16, 16, -8 };
	monster_dead(self);
}

static void gunner_shrink(edict_t *self)
{
	self->maxs[2] = -4;
	self->svflags |= SVF_DEADMONSTER;
	gi.linkentity(self);
}

mframe_t gunner_frames_death[] = {
	{ ai_move },
	{ ai_move },
	{ ai_move, 0, monster_footstep },
	{ ai_move, -7, gunner_shrink },
	{ ai_move, -3 },
	{ ai_move, -5 },
	{ ai_move, 8 },
	{ ai_move, 6 },
	{ ai_move, 0, monster_footstep },
	{ ai_move },
	{ ai_move }
};
MMOVE_T(gunner_move_death) = { FRAME_death01, FRAME_death11, gunner_frames_death, gunner_dead };

DIE(gunner_die) (edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, const vec3_t &point, const mod_t &mod) -> void
{
	// check for gib
	if (M_CheckGib(self, mod))
	{
		gi.sound(self, CHAN_VOICE, gi.soundindex("misc/udeath.wav"), 1, ATTN_NORM, 0);

		self->s.skinnum /= 2;

		ThrowGibs(self, damage, {
			{ 2, "models/objects/gibs/bone/tris.md2" },
			{ 2, "models/objects/gibs/sm_meat/tris.md2" },
			{ "models/monsters/gunner/gibs/chest.md2", GIB_SKINNED },
			{ "models/monsters/gunner/gibs/garm.md2", GIB_SKINNED | GIB_UPRIGHT },
			{ "models/monsters/gunner/gibs/gun.md2", GIB_SKINNED | GIB_UPRIGHT },
			{ "models/monsters/gunner/gibs/foot.md2", GIB_SKINNED },
			{ "models/monsters/gunner/gibs/head.md2", GIB_SKINNED | GIB_HEAD }
		});

		self->deadflag = true;
		return;
	}

	if (self->deadflag)
		return;

	// regular death
	gi.sound(self, CHAN_VOICE, sound_death, 1, ATTN_NORM, 0);
	self->deadflag = true;
	self->takedamage = true;
	M_SetAnimation(self, &gunner_move_death);
}

// PMM - changed to duck code for new dodge

mframe_t gunner_frames_duck[] = {
	{ ai_move, 1, monster_duck_down },
	{ ai_move, 1 },
	{ ai_move, 1, monster_duck_hold },
	{ ai_move },
	{ ai_move, -1 },
	{ ai_move, -1 },
	{ ai_move, 0, monster_duck_up },
	{ ai_move, -1 }
};
MMOVE_T(gunner_move_duck) = { FRAME_duck01, FRAME_duck08, gunner_frames_duck, gunner_run };

// PMM - gunner dodge moved below so I know about attack sequences

void gunner_opengun(edict_t *self)
{
	gi.sound(self, CHAN_VOICE, sound_open, 1, ATTN_IDLE, 0);
}

void GunnerFire(edict_t *self)
{
	vec3_t					 start;
	vec3_t					 forward, right;
	vec3_t					 aim;
	monster_muzzleflash_id_t flash_number;

	if (!self->enemy || !self->enemy->inuse) // PGM
		return;								 // PGM

	flash_number = static_cast<monster_muzzleflash_id_t>(MZ2_GUNNER_MACHINEGUN_1 + (self->s.frame - FRAME_attak216));

	AngleVectors(self->s.angles, forward, right, nullptr);
	start = M_ProjectFlashSource(self, monster_flash_offset[flash_number], forward, right);
	PredictAim(self, self->enemy, start, 0, true, -0.2f, &aim, nullptr);
	monster_fire_bullet(self, start, aim, 3, 4, DEFAULT_BULLET_HSPREAD, DEFAULT_BULLET_VSPREAD, flash_number);
}

bool gunner_grenade_check(edict_t *self)
{
	vec3_t	dir;

	if (!self->enemy)
		return false;

	vec3_t start;

	if (!M_CheckClearShot(self, monster_flash_offset[MZ2_GUNNER_GRENADE_1], start))
		return false;

	vec3_t target;

	// check for flag telling us that we're blindfiring
	if (self->monsterinfo.aiflags & AI_MANUAL_STEERING)
		target = self->monsterinfo.blind_fire_target;
	else
		target = self->enemy->s.origin;

	// see if we're too close
	dir = target - start;

	if (dir.length() < 100)
		return false;

	// check to see that we can trace to the player before we start
	// tossing grenades around.
	vec3_t aim = dir.normalized();
	return M_CalculatePitchToFire(self, target, start, aim, 600, 2.5f, false);
}

void GunnerGrenade(edict_t *self)
{
	vec3_t					 start;
	vec3_t					 forward, right, up;
	vec3_t					 aim;
	monster_muzzleflash_id_t flash_number;
	float					 spread;
	float					 pitch = 0;
	// PMM
	vec3_t target;
	bool   blindfire = false;

	if (!self->enemy || !self->enemy->inuse) // PGM
		return;								 // PGM

	// pmm
	if (self->monsterinfo.aiflags & AI_MANUAL_STEERING)
		blindfire = true;

	if (self->s.frame == FRAME_attak105 || self->s.frame == FRAME_attak309)
	{
		spread = -0.10f;
		flash_number = MZ2_GUNNER_GRENADE_1;
	}
	else if (self->s.frame == FRAME_attak108 || self->s.frame == FRAME_attak312)
	{
		spread = -0.05f;
		flash_number = MZ2_GUNNER_GRENADE_2;
	}
	else if (self->s.frame == FRAME_attak111 || self->s.frame == FRAME_attak315)
	{
		spread = 0.05f;
		flash_number = MZ2_GUNNER_GRENADE_3;
	}
	else // (self->s.frame == FRAME_attak114)
	{
		self->monsterinfo.aiflags &= ~AI_MANUAL_STEERING;
		spread = 0.10f;
		flash_number = MZ2_GUNNER_GRENADE_4;
	}

	if (self->s.frame >= FRAME_attak301 && self->s.frame <= FRAME_attak324)
		flash_number = static_cast<monster_muzzleflash_id_t>(MZ2_GUNNER_GRENADE2_1 + (MZ2_GUNNER_GRENADE_4 - flash_number));

	//	pmm
	// if we're shooting blind and we still can't see our enemy
	if ((blindfire) && (!visible(self, self->enemy)))
	{
		// and we have a valid blind_fire_target
		if (!self->monsterinfo.blind_fire_target)
			return;

		target = self->monsterinfo.blind_fire_target;
	}
	else
		target = self->enemy->s.origin;
	// pmm

	AngleVectors(self->s.angles, forward, right, up); // PGM
	start = M_ProjectFlashSource(self, monster_flash_offset[flash_number], forward, right);

	// PGM
	if (self->enemy)
	{
		float dist;

		aim = target - self->s.origin;
		dist = aim.length();

		// aim up if they're on the same level as me and far away.
		if ((dist > 512) && (aim[2] < 64) && (aim[2] > -64))
		{
			aim[2] += (dist - 512);
		}

		aim.normalize();
		pitch = aim[2];
		if (pitch > 0.4f)
			pitch = 0.4f;
		else if (pitch < -0.5f)
			pitch = -0.5f;
	}
	// PGM

	aim = forward + (right * spread);
	aim += (up * pitch);

	// try search for best pitch
	if (M_CalculatePitchToFire(self, target, start, aim, 600, 2.5f, false))
		monster_fire_grenade(self, start, aim, 50, 600, flash_number, (crandom_open() * 10.0f), frandom() * 10.f);
	else
		// normal shot
		monster_fire_grenade(self, start, aim, 50, 600, flash_number, (crandom_open() * 10.0f), 200.f + (crandom_open() * 10.0f));
}

mframe_t gunner_frames_attack_chain[] = {
	{ ai_charge, 0, gunner_opengun },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge }
};
MMOVE_T(gunner_move_attack_chain) = { FRAME_attak209, FRAME_attak215, gunner_frames_attack_chain, gunner_fire_chain };

mframe_t gunner_frames_fire_chain[] = {
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire },
	{ ai_charge, 0, GunnerFire }
};
MMOVE_T(gunner_move_fire_chain) = { FRAME_attak216, FRAME_attak223, gunner_frames_fire_chain, gunner_refire_chain };

mframe_t gunner_frames_endfire_chain[] = {
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, monster_footstep }
};
MMOVE_T(gunner_move_endfire_chain) = { FRAME_attak224, FRAME_attak230, gunner_frames_endfire_chain, gunner_run };

void gunner_blind_check(edict_t *self)
{
	vec3_t aim;

	if (self->monsterinfo.aiflags & AI_MANUAL_STEERING)
	{
		aim = self->monsterinfo.blind_fire_target - self->s.origin;
		self->ideal_yaw = vectoyaw(aim);
	}
}

mframe_t gunner_frames_attack_grenade[] = {
	{ ai_charge, 0, gunner_blind_check },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge }
};
MMOVE_T(gunner_move_attack_grenade) = { FRAME_attak101, FRAME_attak121, gunner_frames_attack_grenade, gunner_run };

mframe_t gunner_frames_attack_grenade2[] = {
	//{ ai_charge },
	//{ ai_charge },
	//{ ai_charge },
	//{ ai_charge },

	{ ai_charge, 0, gunner_blind_check },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge, 0, GunnerGrenade },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge },
	{ ai_charge }
};
MMOVE_T(gunner_move_attack_grenade2) = { FRAME_attak305, FRAME_attak324, gunner_frames_attack_grenade2, gunner_run };

MONSTERINFO_ATTACK(gunner_attack) (edict_t *self) -> void
{
	float chance, r;

	monster_done_dodge(self);

	// PMM
	if (self->monsterinfo.attack_state == AS_BLIND)
	{
		if (self->timestamp > level.time)
			return;

		// setup shot probabilities
		if (self->monsterinfo.blind_fire_delay < 1_sec)
			chance = 1.0f;
		else if (self->monsterinfo.blind_fire_delay < 7.5_sec)
			chance = 0.4f;
		else
			chance = 0.1f;

		r = frandom();

		// minimum of 4.1 seconds, plus 0-3, after the shots are done
		self->monsterinfo.blind_fire_delay += 4.1_sec + random_time(3_sec);

		// don't shoot at the origin
		if (!self->monsterinfo.blind_fire_target)
			return;

		// don't shoot if the dice say not to
		if (r > chance)
			return;

		// turn on manual steering to signal both manual steering and blindfire
		self->monsterinfo.aiflags |= AI_MANUAL_STEERING;

		if (gunner_grenade_check(self))
		{
			// if the check passes, go for the attack
			M_SetAnimation(self, brandom() ? &gunner_move_attack_grenade2 : &gunner_move_attack_grenade);
			self->monsterinfo.attack_finished = level.time + random_time(2_sec);
		}
		else
			// turn off blindfire flag
			self->monsterinfo.aiflags &= ~AI_MANUAL_STEERING;

		self->timestamp = level.time + random_time(2_sec, 3_sec);

		return;
	}
	// pmm

	// PGM - gunner needs to use his chaingun if he's being attacked by a tesla.
	if (self->bad_area || self->timestamp > level.time || 
		(range_to(self, self->enemy) <= RANGE_NEAR * 0.35f && M_CheckClearShot(self, monster_flash_offset[MZ2_GUNNER_MACHINEGUN_1])))
	{
		M_SetAnimation(self, &gunner_move_attack_chain);
	}
	else
	{
		if (self->timestamp <= level.time && frandom() <= 0.5f && gunner_grenade_check(self))
		{
			M_SetAnimation(self, brandom() ? &gunner_move_attack_grenade2 : &gunner_move_attack_grenade);
			self->timestamp = level.time + random_time(2_sec, 3_sec);
		}
		else if (M_CheckClearShot(self, monster_flash_offset[MZ2_GUNNER_MACHINEGUN_1]))
			M_SetAnimation(self, &gunner_move_attack_chain);
	}
}

void gunner_fire_chain(edict_t *self)
{
	M_SetAnimation(self, &gunner_move_fire_chain);
}

void gunner_refire_chain(edict_t *self)
{
	if (self->enemy->health > 0)
		if (visible(self, self->enemy))
			if (frandom() <= 0.5f)
			{
				M_SetAnimation(self, &gunner_move_fire_chain, false);
				return;
			}
	M_SetAnimation(self, &gunner_move_endfire_chain, false);
}

//===========
// PGM
void gunner_jump_now(edict_t *self)
{
	vec3_t forward, up;

	AngleVectors(self->s.angles, forward, nullptr, up);
	self->velocity += (forward * 100);
	self->velocity += (up * 300);
}

void gunner_jump2_now(edict_t *self)
{
	vec3_t forward, up;

	AngleVectors(self->s.angles, forward, nullptr, up);
	self->velocity += (forward * 150);
	self->velocity += (up * 400);
}

void gunner_jump_wait_land(edict_t *self)
{
	if (self->groundentity == nullptr)
	{
		self->monsterinfo.nextframe = self->s.frame;

		if (monster_jump_finished(self))
			self->monsterinfo.nextframe = self->s.frame + 1;
	}
	else
		self->monsterinfo.nextframe = self->s.frame + 1;
}

mframe_t gunner_frames_jump[] = {
	{ ai_move },
	{ ai_move },
	{ ai_move },
	{ ai_move, 0, gunner_jump_now },
	{ ai_move },
	{ ai_move },
	{ ai_move, 0, gunner_jump_wait_land },
	{ ai_move },
	{ ai_move },
	{ ai_move }
};
MMOVE_T(gunner_move_jump) = { FRAME_jump01, FRAME_jump10, gunner_frames_jump, gunner_run };

mframe_t gunner_frames_jump2[] = {
	{ ai_move, -8 },
	{ ai_move, -4 },
	{ ai_move, -4 },
	{ ai_move, 0, gunner_jump2_now },
	{ ai_move },
	{ ai_move },
	{ ai_move, 0, gunner_jump_wait_land },
	{ ai_move },
	{ ai_move },
	{ ai_move }
};
MMOVE_T(gunner_move_jump2) = { FRAME_jump01, FRAME_jump10, gunner_frames_jump2, gunner_run };

void gunner_jump(edict_t *self, blocked_jump_result_t result)
{
	if (!self->enemy)
		return;

	monster_done_dodge(self);

	if (result == blocked_jump_result_t::JUMP_JUMP_UP)
		M_SetAnimation(self, &gunner_move_jump2);
	else
		M_SetAnimation(self, &gunner_move_jump);
}

//===========
// PGM
MONSTERINFO_BLOCKED(gunner_blocked) (edict_t *self, float dist) -> bool
{
	if (blocked_checkplat(self, dist))
		return true;
	
	if (auto result = blocked_checkjump(self, dist); result != blocked_jump_result_t::NO_JUMP)
	{
		if (result != blocked_jump_result_t::JUMP_TURN)
			gunner_jump(self, result);
		return true;
	}

	return false;
}
// PGM
//===========

// PMM - new duck code
MONSTERINFO_DUCK(gunner_duck) (edict_t *self, gtime_t eta) -> bool
{
	if ((self->monsterinfo.active_move == &gunner_move_jump2) ||
		(self->monsterinfo.active_move == &gunner_move_jump))
	{
		return false;
	}

	if ((self->monsterinfo.active_move == &gunner_move_attack_chain) ||
		(self->monsterinfo.active_move == &gunner_move_fire_chain) ||
		(self->monsterinfo.active_move == &gunner_move_attack_grenade) ||
		(self->monsterinfo.active_move == &gunner_move_attack_grenade2))
	{
		// if we're shooting don't dodge
		self->monsterinfo.unduck(self);
		return false;
	}

	if (frandom() > 0.5f)
		GunnerGrenade(self);

	M_SetAnimation(self, &gunner_move_duck);

	return true;
}

MONSTERINFO_SIDESTEP(gunner_sidestep) (edict_t *self) -> bool
{
	if ((self->monsterinfo.active_move == &gunner_move_jump2) ||
		(self->monsterinfo.active_move == &gunner_move_jump) ||
		(self->monsterinfo.active_move == &gunner_move_pain1))
		return false;

	if ((self->monsterinfo.active_move == &gunner_move_attack_chain) ||
		(self->monsterinfo.active_move == &gunner_move_fire_chain) ||
		(self->monsterinfo.active_move == &gunner_move_attack_grenade) ||
		(self->monsterinfo.active_move == &gunner_move_attack_grenade2))
	{
		// if we're shooting, don't dodge
		return false;
	}

	if (self->monsterinfo.active_move != &gunner_move_run)
		M_SetAnimation(self, &gunner_move_run);

	return true;
}

constexpr spawnflags_t SPAWNFLAG_GUNNER_NOJUMPING = 8_spawnflag;

/*QUAKED monster_gunner (1 .5 0) (-16 -16 -24) (16 16 32) Ambush Trigger_Spawn Sight NoJumping
model="models/monsters/gunner/tris.md2"
*/
void SP_monster_gunner(edict_t *self)
{
	if ( !M_AllowSpawn( self ) ) {
		G_FreeEdict( self );
		return;
	}

	sound_death = gi.soundindex("gunner/death1.wav");
	sound_pain = gi.soundindex("gunner/gunpain2.wav");
	sound_pain2 = gi.soundindex("gunner/gunpain1.wav");
	sound_idle = gi.soundindex("gunner/gunidle1.wav");
	sound_open = gi.soundindex("gunner/gunatck1.wav");
	sound_search = gi.soundindex("gunner/gunsrch1.wav");
	sound_sight = gi.soundindex("gunner/sight1.wav");

	gi.soundindex("gunner/gunatck2.wav");
	gi.soundindex("gunner/gunatck3.wav");

	self->movetype = MOVETYPE_STEP;
	self->solid = SOLID_BBOX;
	self->s.modelindex = gi.modelindex("models/monsters/gunner/tris.md2");
	
	gi.modelindex("models/monsters/gunner/gibs/chest.md2");
	gi.modelindex("models/monsters/gunner/gibs/foot.md2");
	gi.modelindex("models/monsters/gunner/gibs/garm.md2");
	gi.modelindex("models/monsters/gunner/gibs/gun.md2");
	gi.modelindex("models/monsters/gunner/gibs/head.md2");

	self->mins = { -16, -16, -24 };
	self->maxs = { 16, 16, 36 };

	self->health = 175 * st.health_multiplier;
	self->gib_health = -70;
	self->mass = 200;

	self->pain = gunner_pain;
	self->die = gunner_die;

	self->monsterinfo.stand = gunner_stand;
	self->monsterinfo.walk = gunner_walk;
	self->monsterinfo.run = gunner_run;
	// pmm
	self->monsterinfo.dodge = M_MonsterDodge;
	self->monsterinfo.duck = gunner_duck;
	self->monsterinfo.unduck = monster_duck_up;
	self->monsterinfo.sidestep = gunner_sidestep;
	self->monsterinfo.blocked = gunner_blocked; // PGM
	// pmm
	self->monsterinfo.attack = gunner_attack;
	self->monsterinfo.melee = nullptr;
	self->monsterinfo.sight = gunner_sight;
	self->monsterinfo.search = gunner_search;
	self->monsterinfo.setskin = gunner_setskin;

	gi.linkentity(self);

	M_SetAnimation(self, &gunner_move_stand);
	self->monsterinfo.scale = MODEL_SCALE;

	// PMM
	self->monsterinfo.blindfire = true;
	self->monsterinfo.can_jump = !self->spawnflags.has(SPAWNFLAG_GUNNER_NOJUMPING);
	self->monsterinfo.drop_height = 192;
	self->monsterinfo.jump_height = 40;

	walkmonster_start(self);
}