Ерор

#include <amxmodx>
#include <fakemeta>
#include <hamsandwich>
#include <xs>

public plugin_init()
{
        RegisterHam(Ham_TakeDamage, "player", "Player_TakeDamage");
}

public Player_TakeDamage(iVictim, iInflictor, iAttacker, Float: flDamage, const bitsDamageType)
{
        new Float: vecSrc[3];
        new Float: vecAngles[3];
        new Float: vecForward[3];
        new Float: vecAttackDir[3];

        GetCenter(iVictim, vecSrc);
        GetCenter(iInflictor, vecAttackDir);

        xs_vec_sub(vecAttackDir, vecSrc, vecAttackDir);
        xs_vec_normalize(vecAttackDir, vecAttackDir);

        pev(iVictim, pev_angles, vecAngles);
        engfunc(EngFunc_MakeVectors, vecAngles);

        global_get(glb_v_forward, vecForward);
        xs_vec_mul_scalar(vecAttackDir, -1.0, vecAttackDir);

        if (!is_user_alive(iAttacker))
		return
		
		if (get_user_weapon(iAttacker) == CSW_KNIFE && xs_vec_dot(vecForward, vecAttackDir) > 0.3)
        {
                SetHamParamFloat(4, 0.0);
        }
}

GetCenter(const iEntity, Float: vecSrc[3])
{
        new Float: vecAbsMax[3];
        new Float: vecAbsMin[3];

        pev(iEntity, pev_absmax, vecAbsMax);
        pev(iEntity, pev_absmin, vecAbsMin);

        xs_vec_add(vecAbsMax, vecAbsMin, vecSrc);
        xs_vec_mul_scalar(vecSrc, 0.5, vecSrc);
}

public Player_TakeDamage(iVictim, iInflictor, iAttacker, Float: flDamage, const bitsDamageType)
{
        new Float: vecSrc[3];
        new Float: vecAngles[3];
        new Float: vecForward[3];
        new Float: vecAttackDir[3];
 
        GetCenter(iVictim, vecSrc);
        GetCenter(iInflictor, vecAttackDir);
 
        xs_vec_sub(vecAttackDir, vecSrc, vecAttackDir);
        xs_vec_normalize(vecAttackDir, vecAttackDir);
 
        pev(iVictim, pev_angles, vecAngles);
        engfunc(EngFunc_MakeVectors, vecAngles);
 
        global_get(glb_v_forward, vecForward);
        xs_vec_mul_scalar(vecAttackDir, -1.0, vecAttackDir);
 
        if (!is_user_alive(iAttacker))
      return
       
      if (get_user_weapon(iAttacker) == CSW_KNIFE && xs_vec_dot(vecForward, vecAttackDir) > 0.3)
        {
                SetHamParamFloat(4, 0.0);
        }
}

public Player_TakeDamage(iVictim, iInflictor, iAttacker, Float: flDamage, const bitsDamageType)
{
	if(is_user_connected(iVictim) && is_user_connected(iAttacker) && iVictim != iAttacker)
	{
		new Float: vecSrc[3];
		new Float: vecAngles[3];
		new Float: vecForward[3];
		new Float: vecAttackDir[3];
		
		GetCenter(iVictim, vecSrc);
		GetCenter(iInflictor, vecAttackDir);
		
		xs_vec_sub(vecAttackDir, vecSrc, vecAttackDir);
		xs_vec_normalize(vecAttackDir, vecAttackDir);
		
		pev(iVictim, pev_angles, vecAngles);
		engfunc(EngFunc_MakeVectors, vecAngles);
		
		global_get(glb_v_forward, vecForward);
		xs_vec_mul_scalar(vecAttackDir, -1.0, vecAttackDir);
		
		if(get_user_weapon(iAttacker) == CSW_KNIFE && xs_vec_dot(vecForward, vecAttackDir) > 0.3)
			SetHamParamFloat(4, 0.0);
	}
}