/* Plugin generated by AMXX-Studio */

#include <amxmodx>
#include <amxmisc>
#include <engine>
#include <csdm>
#include <csx>
#include <hamsandwich>
#include <xs>
#include <fakemeta>
#include <fakemeta_util>
#include <fakemeta_const>
#include <fakemeta_stocks>
#include <fakemeta_util>
#include <ham_const>
#include <fun>
#include <dhudmessage>
#include <cstrike>
#include <orpheu>
#include <orpheu_stocks>
#include <astar>

#define PLUGIN "New Plug-In"
#define VERSION "1.0"
#define AUTHOR "author"

#define TASK_DEATH 29128
#define TASK_FOLLOW 12923
new g_follow
new bool: g_Hit[32];
new const g_NpcSoundKnifeHit[][] =
{
    "weapons/knife_hit1.wav",
    "weapons/knife_hit2.wav",
    "weapons/knife_hit3.wav",
    "weapons/knife_hit4.wav"
}

new const g_NpcSoundKnifeStab[] = "weapons/knife_stab.wav";

public plugin_init() {
    register_plugin(PLUGIN, VERSION, AUTHOR)
    register_think("npc_heavy","npc_think");
    //RegisterHam(Ham_Think, "npc_heavy", "npc_think")
    RegisterHam(Ham_TakeDamage, "info_target", "fw_npc_takedamage");
    register_forward(FM_EmitSound, "npc_EmitSound");

    register_concmd("testnpc", "spawn_npc");
    register_concmd("followclient", "clcmd_follow")

    // Add your code here...
}
public plugin_precache()
{
    precache_model("models/monster/bot_heavy.mdl");
}
public clcmd_follow(id)
{
    g_follow = id

    return PLUGIN_HANDLED;
}

public spawn_npc(id)
{

    new ent = create_entity("info_target");
    new npcreg
    static hp
    hp = set_pev(ent, pev_health, hp)
    if(!pev_valid(ent)) return PLUGIN_HANDLED;

    set_pev(ent, pev_classname, "npc_heavy")
    set_pev(ent, pev_netname, "Heavy")
    new Float: origin[3], Float: angle[3], Float: velocity[3]
    pev(id, pev_origin, origin)
    origin[1] += 80.0
    origin[2] += 80.0
    engfunc(EngFunc_SetOrigin, ent, origin)
    pev(id, pev_angles, angle)
    angle[0] = 0.0
    set_pev(ent, pev_angles, angle)
    set_pev(ent, pev_takedamage, 1.0)
    set_pev(ent, pev_health, 2000.0)

    set_pev(ent, pev_movetype, MOVETYPE_WALK)
    set_pev(ent, pev_solid, SOLID_SLIDEBOX)
    //set_pev(ent, pev_controller_0, 125)
    //set_pev(ent, pev_controller_1, 125)
    //set_pev(ent, pev_controller_2, 125)
    //set_pev(ent, pev_controller_3, 125)
    engfunc(EngFunc_SetModel, ent, "models/monster/bot_heavy.mdl")
    engfunc(EngFunc_SetSize, ent, {-12.0, -12.0, 0.0 }, { 12.0, 12.0, 75.0 })
    velocity_by_aim(id, 800, velocity)
    entity_set_aim(ent, g_follow)

    set_pev(ent, pev_velocity, velocity)
    entity_set_float(ent,EV_FL_animtime,2.0)
    entity_set_float(ent,EV_FL_framerate,1.0)
    entity_set_int(ent,EV_INT_sequence,1);
    set_pev(ent, pev_nextthink, get_gametime() + 0.01)

    set_pev(ent, pev_gravity, 120.0)
    if(!npcreg) {
        RegisterHamFromEntity(Ham_TakeDamage, ent, "fw_npc_takedamage")
        //RegisterHamFromEntity(Ham_Killed, ent, "fw_npc_killed")
        //RegisterHamFromEntity(Ham_TraceAttack, ent, "fw_npc_traceattack")
        npcreg = true
    }

    //if(pev(ent, pev_health < 100) Util_PlayAnimation(ent, random_num(15,20))

    return PLUGIN_HANDLED

}


public npc_think(ent)
{
    if(!pev_valid(ent)) return;

    //ent -= TASK_FOLLOW

    //if(task_exists(ent+TASK_DEATH)) return

    if(pev(ent, pev_health) <= 200.0)
    {
        //ent -= TASK_DEATH
        Set_EntAnim(ent, 15, 1.0,1)
        entity_set_float(ent, EV_FL_takedamage, 0.0)
        set_pev(ent, pev_movetype, MOVETYPE_NONE)
        set_pev(ent, pev_solid, SOLID_NOT)

        //remove_task(ent+TASK_FOLLOW)
        g_follow = 0
    }
    static className[32]
    pev(ent, pev_classname, className, charsmax(className))

    if(!equali(className, "npc_heavy")) return;

    //if(g_dead[iEnt]) return;

    new Float: velocity[3]
    if(is_user_alive(g_follow)) entity_set_aim(ent, g_follow);

    set_pev(ent, pev_nextthink, get_gametime() + 0.3)
}
public Heavy_death(ent)
{
    ent -= TASK_DEATH
    Set_EntAnim(ent, 15, 1.0,1)
    entity_set_float(ent, EV_FL_takedamage, 0.0)
    set_pev(ent, pev_movetype, MOVETYPE_NONE)
    set_pev(ent, pev_solid, SOLID_NOT)

    remove_task(ent+TASK_FOLLOW)
    g_follow = 0
}
public give_weapon(ent)
{
        new entWeapon = create_entity("info_target");

        entity_set_string(entWeapon, EV_SZ_classname, "npc_weapon");

        entity_set_int(entWeapon, EV_INT_movetype, MOVETYPE_FOLLOW);
        entity_set_int(entWeapon, EV_INT_solid, SOLID_NOT);
        entity_set_edict(entWeapon, EV_ENT_aiment, ent);
        //entity_set_model(entWeapon, "models/p_ak47.mdl")
}
public fw_npc_takedamage(ent, inflictor, attacker, Float:damage, damage_type) {
    if(!pev_valid(ent) || !is_user_connected(attacker))
        return HAM_SUPERCEDE;


    Util_PlayAnimation(ent, 11)

    if(get_weaponid("weapon_knife")) emit_sound(attacker, CHAN_VOICE, g_NpcSoundKnifeHit[random(sizeof g_NpcSoundKnifeHit)],  VOL_NORM, ATTN_NORM, 0, PITCH_NORM)

    return HAM_IGNORED
}
entity_set_aim(ent, player)
{
    static Float:origin[3], Float:ent_origin[3], Float:angles[3]
    pev(player, pev_origin, origin)
    pev(ent, pev_origin, ent_origin)

    xs_vec_sub(origin, ent_origin, origin)
    xs_vec_normalize(origin, origin)
    vector_to_angle(origin, angles)

    angles[0] = 0.0

    set_pev(ent, pev_angles, angles)
    set_velocity(ent, angles)
}
stock Set_EntAnim(ent, anim, Float:framerate, resetframe)
{
    if(!pev_valid(ent))
        return

    if(!resetframe)
    {
        if(pev(ent, pev_sequence) != anim)
        {
            set_pev(ent, pev_animtime, get_gametime())
            set_pev(ent, pev_framerate, framerate)
            set_pev(ent, pev_sequence, anim)
        }
    } else {
        set_pev(ent, pev_animtime, get_gametime())
        set_pev(ent, pev_framerate, framerate)
        set_pev(ent, pev_sequence, anim)
    }
}
set_velocity(ent, Float:angles[3])
{
    static Float: Direction[3]
    angle_vector(angles, ANGLEVECTOR_FORWARD, Direction)
    xs_vec_mul_scalar(Direction, 230.0, Direction) // 215 speed
    set_pev(ent, pev_velocity, Direction)

    // Run Sequence
    if(pev(ent, pev_sequence) != 6) Util_PlayAnimation(ent, 6);
}
Util_PlayAnimation(index, sequence, Float: framerate = 1.0)
{
    if(is_valid_ent(index)) {
        set_pev(index, pev_animtime, get_gametime())
        set_pev(index, pev_framerate,  1.0)
        set_pev(index, pev_frame, 0.0)
        set_pev(index, pev_sequence, sequence)
    }
}