AlliedModders - Weapon Knocback?

Quote:

#include <amxmodx>
#include <engine>

#define PLUGIN "Pump 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("pump_knockback" , "1");
cvar_pump_force = register_cvar("pump_force" , "999");
}

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_AWP)
{
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;
}