Knife hit knockback

SaraAki · **Author**

This plugin activate knockback on knife damage.What i want is that knockback work only when damage is done with right mouse click.Also,maybe there is a better way to create knockback than using event_damage?

PHP Code:


			
#include <amxmodx>
#include <engine>

#define PLUGIN    "Knife Knockback (when shot by one)"
#define VERSION    "1.0"
#define AUTHOR    "v3x & Chronic"

new cvar_pump_active , cvar_pump_force;

public plugin_init()
{
    register_plugin(PLUGIN , VERSION , AUTHOR);

    register_event("Damage" , "event_Damage" , "b" , "2>0");

    cvar_pump_active   = register_cvar("knife_knockback" , "1");
    cvar_pump_force       = register_cvar("knife_force"     , "10");
}

public event_Damage(id)
{
    if(!get_pcvar_num(cvar_pump_active))
        return PLUGIN_CONTINUE;

    if(!is_user_alive(id))
        return PLUGIN_CONTINUE;

    new weapon , attacker = get_user_attacker(id , weapon);

    if(!is_user_alive(attacker))
        return PLUGIN_CONTINUE;

    if(weapon == CSW_KNIFE)
    {
        new Float:vec[3];
        new Float:oldvelo[3];
        get_user_velocity(id, oldvelo);
        create_velocity_vector(id , attacker , vec);
        vec[0] += oldvelo[0];
        vec[1] += oldvelo[1];
        set_user_velocity(id , vec);
    }

    return PLUGIN_CONTINUE;
}

// Stock by the one and only, Chronic :P
stock create_velocity_vector(victim,attacker,Float:velocity[3])
{
    if(!is_user_alive(victim) || !is_user_alive(attacker))
        return 0;

    new Float:vicorigin[3];
    new Float:attorigin[3];
    entity_get_vector(victim   , EV_VEC_origin , vicorigin);
    entity_get_vector(attacker , EV_VEC_origin , attorigin);

    new Float:origin2[3]
    origin2[0] = vicorigin[0] - attorigin[0];
    origin2[1] = vicorigin[1] - attorigin[1];

    new Float:largestnum = 0.0;

    if(floatabs(origin2[0])>largestnum) largestnum = floatabs(origin2[0]);
    if(floatabs(origin2[1])>largestnum) largestnum = floatabs(origin2[1]);

    origin2[0] /= largestnum;
    origin2[1] /= largestnum;

    velocity[0] = ( origin2[0] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
    velocity[1] = ( origin2[1] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
    if(velocity[0] <= 20.0 || velocity[1] <= 20.0)
        velocity[2] = random_float(200.0 , 275.0);

    return 1;
}

Tote · 04-24-2024 , 11:17 Re: Knife hit knockback

Code:

#include <amxmodx>
#include <engine>
#include <fakemeta>

#define PLUGIN    "Knife Knockback (when shot by one)"
#define VERSION    "1.0"
#define AUTHOR    "v3x & Chronic"

new cvar_pump_active , cvar_pump_force;

public plugin_init()
{
	register_plugin(PLUGIN , VERSION , AUTHOR);
	
	register_event("Damage" , "event_Damage" , "b" , "2>0");
	
	cvar_pump_active   = register_cvar("knife_knockback" , "1");
	cvar_pump_force       = register_cvar("knife_force"     , "10");
}

public event_Damage(id)
{
	static btn; btn = pev(id, pev_button)
	
	if(!get_pcvar_num(cvar_pump_active))
		return PLUGIN_CONTINUE;
	
	if(!is_user_alive(id))
		return PLUGIN_CONTINUE;
	
	new weapon , attacker = get_user_attacker(id , weapon);
	
	if(!is_user_alive(attacker))
		return PLUGIN_CONTINUE;
	
	if(weapon == CSW_KNIFE && btn & IN_ATTACK2)
	{
		new Float:vec[3];
		new Float:oldvelo[3];
		get_user_velocity(id, oldvelo);
		create_velocity_vector(id , attacker , vec);
		vec[0] += oldvelo[0];
		vec[1] += oldvelo[1];
		set_user_velocity(id , vec);
	}
	
	return PLUGIN_CONTINUE;
}

// Stock by the one and only, Chronic :P
stock create_velocity_vector(victim,attacker,Float:velocity[3])
{
	if(!is_user_alive(victim) || !is_user_alive(attacker))
		return 0;
	
	new Float:vicorigin[3];
	new Float:attorigin[3];
	entity_get_vector(victim   , EV_VEC_origin , vicorigin);
	entity_get_vector(attacker , EV_VEC_origin , attorigin);
	
	new Float:origin2[3]
	origin2[0] = vicorigin[0] - attorigin[0];
	origin2[1] = vicorigin[1] - attorigin[1];
	
	new Float:largestnum = 0.0;
	
	if(floatabs(origin2[0])>largestnum) largestnum = floatabs(origin2[0]);
	if(floatabs(origin2[1])>largestnum) largestnum = floatabs(origin2[1]);
	
	origin2[0] /= largestnum;
	origin2[1] /= largestnum;
	
	velocity[0] = ( origin2[0] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
	velocity[1] = ( origin2[1] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
	if(velocity[0] <= 20.0 || velocity[1] <= 20.0)
		velocity[2] = random_float(200.0 , 275.0);
	
	return 1;
}

u can use Ham Traceattack

Code:

#include <amxmodx>
#include <engine>
#include <hamsandwich>
#include <fakemeta>

#define PLUGIN    "Knife Knockback (when shot by one)"
#define VERSION    "1.0"
#define AUTHOR    "v3x & Chronic"

new cvar_pump_active , cvar_pump_force;

public plugin_init()
{
	register_plugin(PLUGIN , VERSION , AUTHOR);
	
	RegisterHam(Ham_TraceAttack, "player", "fw_TraceAttack_Post", 1)
	
	cvar_pump_active   = register_cvar("knife_knockback" , "1");
	cvar_pump_force       = register_cvar("knife_force"     , "10");
}

public fw_TraceAttack_Post(id, attacker)
{
	
	if(!get_pcvar_num(cvar_pump_active))
		return PLUGIN_CONTINUE;
	
	if(is_user_connected(attacker) && is_user_connected(id) && is_user_alive(id) && is_user_alive(attacker))
	{
		static btn; btn = pev(id, pev_button)
		new weapon; weapon = get_user_weapon(id)
		
		if(weapon == CSW_KNIFE && btn & IN_ATTACK2)
		{
			new Float:vec[3];
			new Float:oldvelo[3];
			get_user_velocity(id, oldvelo);
			create_velocity_vector(id , attacker , vec);
			vec[0] += oldvelo[0];
			vec[1] += oldvelo[1];
			set_user_velocity(id , vec);
		}
	}
	
	return PLUGIN_CONTINUE;
}

// Stock by the one and only, Chronic :P
stock create_velocity_vector(victim,attacker,Float:velocity[3])
{
	if(!is_user_alive(victim) || !is_user_alive(attacker))
		return 0;
	
	new Float:vicorigin[3];
	new Float:attorigin[3];
	entity_get_vector(victim   , EV_VEC_origin , vicorigin);
	entity_get_vector(attacker , EV_VEC_origin , attorigin);
	
	new Float:origin2[3]
	origin2[0] = vicorigin[0] - attorigin[0];
	origin2[1] = vicorigin[1] - attorigin[1];
	
	new Float:largestnum = 0.0;
	
	if(floatabs(origin2[0])>largestnum) largestnum = floatabs(origin2[0]);
	if(floatabs(origin2[1])>largestnum) largestnum = floatabs(origin2[1]);
	
	origin2[0] /= largestnum;
	origin2[1] /= largestnum;
	
	velocity[0] = ( origin2[0] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
	velocity[1] = ( origin2[1] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
	if(velocity[0] <= 20.0 || velocity[1] <= 20.0)
		velocity[2] = random_float(200.0 , 275.0);
	
	return 1;
}

SaraAki · 04-24-2024 , 12:24 Re: Knife hit knockback

I tested both versions and neither works.Thanks for helping me anyway.Any idea what to change?

Tote · 04-24-2024 , 12:41 Re: Knife hit knockback

did i misunderstood?
u want it when hit with right mouse then let the knockback work?

Tote · 04-24-2024 , 12:47 Re: Knife hit knockback

Code:

#include <amxmodx>
#include <engine>
#include <fakemeta>

#define PLUGIN    "Knife Knockback (when shot by one)"
#define VERSION    "1.0"
#define AUTHOR    "v3x & Chronic"

new cvar_pump_active , cvar_pump_force;

public plugin_init()
{
	register_plugin(PLUGIN , VERSION , AUTHOR);
	
	register_event("Damage" , "event_Damage" , "b" , "2>0");
	
	cvar_pump_active   = register_cvar("knife_knockback" , "1");
	cvar_pump_force       = register_cvar("knife_force"     , "10");
}

public event_Damage(id)
{
	static btn
	btn = pev(id, pev_button)
	
	if(!get_pcvar_num(cvar_pump_active))
		return PLUGIN_CONTINUE;
	
	if(!is_user_alive(id))
		return PLUGIN_CONTINUE;
	
	new weapon , attacker = get_user_attacker(id , weapon);
	
	if(!is_user_alive(attacker))
		return PLUGIN_CONTINUE;
	
	if(btn & IN_ATTACK2)
	{
		if(weapon == CSW_KNIFE)
		{
			new Float:vec[3];
			new Float:oldvelo[3];
			get_user_velocity(id, oldvelo);
			create_velocity_vector(id , attacker , vec);
			vec[0] += oldvelo[0];
			vec[1] += oldvelo[1];
			set_user_velocity(id , vec);
		}
	}
	
	return PLUGIN_CONTINUE;
}

// Stock by the one and only, Chronic :P
stock create_velocity_vector(victim,attacker,Float:velocity[3])
{
	if(!is_user_alive(victim) || !is_user_alive(attacker))
		return 0;
	
	new Float:vicorigin[3];
	new Float:attorigin[3];
	entity_get_vector(victim   , EV_VEC_origin , vicorigin);
	entity_get_vector(attacker , EV_VEC_origin , attorigin);
	
	new Float:origin2[3]
	origin2[0] = vicorigin[0] - attorigin[0];
	origin2[1] = vicorigin[1] - attorigin[1];
	
	new Float:largestnum = 0.0;
	
	if(floatabs(origin2[0])>largestnum) largestnum = floatabs(origin2[0]);
	if(floatabs(origin2[1])>largestnum) largestnum = floatabs(origin2[1]);
	
	origin2[0] /= largestnum;
	origin2[1] /= largestnum;
	
	velocity[0] = ( origin2[0] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
	velocity[1] = ( origin2[1] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
	if(velocity[0] <= 20.0 || velocity[1] <= 20.0)
		velocity[2] = random_float(200.0 , 275.0);
	
	return 1;
}

maybe this
also enable debug and check for errors on logs

SaraAki · 04-24-2024 , 13:59 Re: Knife hit knockback

Yes when hit with knife but only with right click.Last version also didnt work and no error in logs.

Tote · 04-24-2024 , 14:26 Re: Knife hit knockback

Quote:

Originally Posted by SaraAki

Yes when hit with knife but only with right click.Last version also didnt work and no error in logs.

does the plugin work without my edits?

SaraAki · 04-24-2024 , 15:56 Re: Knife hit knockback

Yes it work.

mlibre · 04-24-2024 , 17:22 Re: Knife hit knockback

alternative to stock, try...

PHP Code:


			
user_slap(index, 0, 1)

Ace67 · 04-25-2024 , 06:35 Re: Knife hit knockback

Quote:

Originally Posted by SaraAki

This plugin activate knockback on knife damage.What i want is that knockback work only when damage is done with right mouse click.Also,maybe there is a better way to create knockback than using event_damage?

PHP Code:


			
#include <amxmodx>
#include <engine>

#define PLUGIN    "Knife Knockback (when shot by one)"
#define VERSION    "1.0"
#define AUTHOR    "v3x & Chronic"

new cvar_pump_active , cvar_pump_force;

public plugin_init()
{
    register_plugin(PLUGIN , VERSION , AUTHOR);

    register_event("Damage" , "event_Damage" , "b" , "2>0");

    cvar_pump_active   = register_cvar("knife_knockback" , "1");
    cvar_pump_force       = register_cvar("knife_force"     , "10");
}

public event_Damage(id)
{
    if(!get_pcvar_num(cvar_pump_active))
        return PLUGIN_CONTINUE;

    if(!is_user_alive(id))
        return PLUGIN_CONTINUE;

    new weapon , attacker = get_user_attacker(id , weapon);

    if(!is_user_alive(attacker))
        return PLUGIN_CONTINUE;

    if(weapon == CSW_KNIFE)
    {
        new Float:vec[3];
        new Float:oldvelo[3];
        get_user_velocity(id, oldvelo);
        create_velocity_vector(id , attacker , vec);
        vec[0] += oldvelo[0];
        vec[1] += oldvelo[1];
        set_user_velocity(id , vec);
    }

    return PLUGIN_CONTINUE;
}

// Stock by the one and only, Chronic :P
stock create_velocity_vector(victim,attacker,Float:velocity[3])
{
    if(!is_user_alive(victim) || !is_user_alive(attacker))
        return 0;

    new Float:vicorigin[3];
    new Float:attorigin[3];
    entity_get_vector(victim   , EV_VEC_origin , vicorigin);
    entity_get_vector(attacker , EV_VEC_origin , attorigin);

    new Float:origin2[3]
    origin2[0] = vicorigin[0] - attorigin[0];
    origin2[1] = vicorigin[1] - attorigin[1];

    new Float:largestnum = 0.0;

    if(floatabs(origin2[0])>largestnum) largestnum = floatabs(origin2[0]);
    if(floatabs(origin2[1])>largestnum) largestnum = floatabs(origin2[1]);

    origin2[0] /= largestnum;
    origin2[1] /= largestnum;

    velocity[0] = ( origin2[0] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
    velocity[1] = ( origin2[1] * (get_pcvar_float(cvar_pump_force) * 3000) ) / get_entity_distance(victim , attacker);
    if(velocity[0] <= 20.0 || velocity[1] <= 20.0)
        velocity[2] = random_float(200.0 , 275.0);

    return 1;
}

I've added PlayerAttack instead of Damage it will detects both primary and secondary attacks. By checking the boolean parameter bPrimary, so it allows you to determine if the attack was a right-click (secondary attack) or not.

PHP Code:


			
#include <amxmodx>
#include <engine>

#define PLUGIN      "Knife Knockback (when shot by one)"
#define VERSION     "1.1"
#define AUTHOR      "v3x & Chronic"

new cvar_pump_force;

public plugin_init()
{
    register_plugin(PLUGIN, VERSION, AUTHOR);

    register_event("PlayerAttack", "event_PlayerAttack", "be");
    
    cvar_pump_force    = register_cvar("knife_force", "10");
}

public event_PlayerAttack(id, bool:bPrimary)
{
    new weapon = get_user_weapon(id);
    
    // It checks if the user using the knife and right-clicked 
    if (weapon == CSW_KNIFE && !bPrimary)
    {
        new attacker = get_user_attacker(id, weapon);
        
        // It will apply the knockback only if the attacker is alive and not dead.
        if (is_user_alive(attacker))
        {
            apply_knockback(id, attacker);
        }
    }
}

public apply_knockback(victim, attacker)
{
    new Float:vec[3];
    new Float:oldvelo[3];
    get_user_velocity(victim, oldvelo);
    create_velocity_vector(victim, attacker, vec);
    vec[0] += oldvelo[0];
    vec[1] += oldvelo[1];
    set_user_velocity(victim, vec);
}

// Stock by the one and only, Chronic :P
stock create_velocity_vector(victim, attacker, Float:velocity[3])
{
    if (!is_user_alive(victim) || !is_user_alive(attacker))
        return 0;

    new Float:vicorigin[3];
    new Float:attorigin[3];
    entity_get_vector(victim, EV_VEC_origin, vicorigin);
    entity_get_vector(attacker, EV_VEC_origin, attorigin);

    new Float:origin2[3];
    origin2[0] = vicorigin[0] - attorigin[0];
    origin2[1] = vicorigin[1] - attorigin[1];

    new Float:largestnum = 0.0;

    if (floatabs(origin2[0]) > largestnum) largestnum = floatabs(origin2[0]);
    if (floatabs(origin2[1]) > largestnum) largestnum = floatabs(origin2[1]);

    origin2[0] /= largestnum;
    origin2[1] /= largestnum;

    velocity[0] = (origin2[0] * (get_pcvar_float(cvar_pump_force) * 3000)) / get_entity_distance(victim, attacker);
    velocity[1] = (origin2[1] * (get_pcvar_float(cvar_pump_force) * 3000)) / get_entity_distance(victim, attacker);
    if (velocity[0] <= 20.0 || velocity[1] <= 20.0)
        velocity[2] = random_float(200.0, 275.0);

    return 1;
}