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Fixsek Kot
Junior Member
Join Date: Feb 2022
Old 07-04-2022 , 14:19   Spawned a NULL entity
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Hi,

I've been struggling creating a lasermine, just can't understand it, because people have to make their codes way to hard to read for some reason. So I wrote some code, tested it in game and I got a fatal error: "Spawned a NULL entity!" I tried to search what this means and how to fix it, so I'm begging for not only a help to solve this issue, but also explain to me at least a little, how to make the lasermine work, because I guess it won't work properly:

Quote:
#include <amxmodx>
#include <amxmisc>
#include <hamsandwich>
#include <fakemeta>
#include <engine>
#include <xs>

#define PLUGIN "New Plug-In"
#define VERSION "1.0"
#define AUTHOR "author"
new LM_MODEL[] = "models/zombiechronicbykot/lasermine/lasermine.mdl"
enum _:SERVER_DATA
{
LASER_ENTITY
}
enum _:LASER_PROPS
{
LASER_OWNER = pev_iuser1,
LASER_BEAM = pev_iuser2,
LASER_TEAM = pev_iuser3,
LASER_STEP = pev_iuser4,
LASER_END = pev_vuser1,
LASER_ANGLES = pev_angles,
LASER_ORIGIN = pev_origin,
LASER_POWERUP = 0,
LASER_ACTIVATED = 1,
LASER_EXPLODE = 2,
LASER_CREATE = 3,
LASER_REMOVE = 4
}
enum _:LASER_VECTOR
{
Float:LV_PLAYER,
Float:LV_ANGLES,
Float:LV_END,
Float:LV_NORMAL,
}
new server_data[SERVER_DATA]
public plugin_init() {
register_plugin(PLUGIN, VERSION, AUTHOR)
}
public plugin_precache()
{
precache_model(LM_MODEL)
}
public client_putinserver(id)
{
set_task(8.0, "CreateUserLaser", id)
}
public CreateUserLaser(iTask)
{
static id, iEnt

iEnt = engfunc(EngFunc_CreateNamedEntity, server_data[LASER_ENTITY])

engfunc(EngFunc_SetModel, iEnt, LM_MODEL);
engfunc(EngFunc_SetSize, iEnt, { -4.0,-4.0,-4.0 }, { 4.0,4.0,4.0 });

set_pev(iEnt, pev_classname, "zm_laser");
set_pev(iEnt, pev_solid, SOLID_NOT);
set_pev(iEnt, pev_movetype, MOVETYPE_FLY);

set_pev(iEnt, pev_health, 750.0);
set_pev(iEnt, pev_takedamage, 0.0);

set_pev(iEnt, pev_iuser1, id);
set_pev(iEnt, pev_iuser3, get_user_team(id));
set_pev(iEnt, pev_iuser4, 0);

SetLaserPosition(id, iEnt);

set_pev(iEnt, pev_frame, 0);
set_pev(iEnt, pev_framerate, 0);
set_pev(iEnt, pev_body, 3);
set_pev(iEnt, pev_sequence, 7);
set_pev(iEnt, pev_nextthink, get_gametime() + 3.0)
}
SetLaserPosition(const id, const iEnt)
{
static Float:fVector[LASER_VECTOR][3], Float:fFraction, iTrace;
iTrace = create_tr2();

pev(id, pev_origin, fVector[LV_PLAYER]);
pev(id, pev_v_angle, fVector[LV_ANGLES]);

angle_vector(fVector[LV_ANGLES], ANGLEVECTOR_FORWARD, fVector[LV_ANGLES]);

xs_vec_mul_scalar(fVector[LV_ANGLES], 128.0, fVector[LV_ANGLES]);
xs_vec_add(fVector[LV_PLAYER], fVector[LV_ANGLES], fVector[LV_END]);

engfunc(EngFunc_TraceLine, fVector[LV_PLAYER], fVector[LV_END], DONT_IGNORE_MONSTERS, id, iTrace);

get_tr2(iTrace, TR_flFraction, fFraction);
get_tr2(iTrace, TR_vecEndPos, fVector[LV_END]);
get_tr2(iTrace, TR_vecPlaneNormal, fVector[LV_NORMAL]);

free_tr2(iTrace);
iTrace = create_tr2();

xs_vec_mul_scalar(fVector[LV_NORMAL], 8.0, fVector[LV_NORMAL]);
xs_vec_add(fVector[LV_END], fVector[LV_NORMAL], fVector[LV_END]);

engfunc(EngFunc_SetOrigin, iEnt, fVector[LV_END]);

vector_to_angle(fVector[LV_NORMAL], fVector[LV_ANGLES]);
set_pev(iEnt, LASER_ANGLES, fVector[LV_ANGLES]);

if (fFraction < 1.0)
{
xs_vec_mul_scalar(fVector[LV_NORMAL], 8192.0, fVector[LV_NORMAL]);
engfunc(EngFunc_TraceLine, fVector[LV_END], fVector[LV_NORMAL], IGNORE_MONSTERS, iEnt, iTrace);

get_tr2(iTrace, TR_vecEndPos, fVector[LV_END]);
free_tr2(iTrace);
}

set_pev(iEnt, LASER_END, fVector[LV_END])
}
Best regards,

-Fixsek Kot

Last edited by Fixsek Kot; 07-04-2022 at 14:20.
Fixsek Kot is offline