#include <sourcemod>
#include <sdktools>

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon)
{
    static Float:LeftGroundMaxSpeed[MAXPLAYERS + 1];

    if (IsPlayerAlive(client))
    {
        if(GetClientTeam(client) == 3 && GetEntProp(client, Prop_Send, "m_zombieClass") == 3)
        {
            return Plugin_Continue;
        }

        if (GetEntityFlags(client) & FL_ONGROUND)
        {
            if (LeftGroundMaxSpeed[client] != -1.0)
            {
                decl Float:CurVelVec[3];
                GetEntPropVector(client, Prop_Data, "m_vecAbsVelocity", CurVelVec);

                if (GetVectorLength(CurVelVec) > LeftGroundMaxSpeed[client])
                {
                    NormalizeVector(CurVelVec, CurVelVec);
                    ScaleVector(CurVelVec, LeftGroundMaxSpeed[client]);
                    TeleportEntity(client, NULL_VECTOR, NULL_VECTOR, CurVelVec);
                }
                LeftGroundMaxSpeed[client] = -1.0;
            }
        }
        else if(LeftGroundMaxSpeed[client] == -1.0)
        {
            LeftGroundMaxSpeed[client] = GetEntPropFloat(client, Prop_Data, "m_flMaxspeed");
        }
    }

    return Plugin_Continue;
}