#include <sourcemod>
#include <sdktools>

#define PLUGIN_VERSION "1.0"

new Handle:g_Force = INVALID_HANDLE;
new Handle:g_Distance = INVALID_HANDLE;

public OnPluginStart()
{
  g_Force = CreateConVar("sm_push_force", "300.0");
  g_Distance = CreateConVar("sm_push_distance", "150.0");
}

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon)
{
  if(buttons & IN_USE)
  {
   new ent = GetClientAimTarget(client, false);
   if(ent > MaxClients)
   {
    new String:classname[64];
    GetEdictClassname(ent, classname, sizeof(classname));
    if(StrContains(classname, "prop_physics")==0)
    {
     new Float:playerpos[3];
     GetClientAbsOrigin(client, playerpos);
      
     new Float:entpos[3];
     GetEntPropVector(ent, Prop_Send, "m_vecOrigin", entpos);
      
     if(GetVectorDistance(playerpos, entpos) < GetConVarFloat(g_Distance))
     {
      new Float:vangles[3];
      GetClientEyeAngles(client, vangles);
       
      new Float:velocity[3];
      GetAngleVectors(vangles, velocity, NULL_VECTOR, NULL_VECTOR);
       
      NormalizeVector(velocity, velocity);
       
      ScaleVector(velocity, (GetConVarFloat(g_Force)/(GetEntPropFloat(ent, Prop_Send, "m_fMass")/20)));
      if(buttons & IN_BACK)
      {
       ScaleVector(velocity, -1.0);
      }
       
      velocity[2] = 0.0;
       
      TeleportEntity(ent, NULL_VECTOR, NULL_VECTOR, velocity);
     }
    }
   }
  }
}