I've tryed to do this afret read planet survivor from an aum.

Code:

---

Function Shoot_me
{	
	var Shoot_Speed=40;
	my.pan = -90;
	My.facing = on;
	my.event = hit;
	my.enable_entity=on;	
	my.passable=on;
	my.push=1;
	my.skill3=1;
	my.scale_x=0.3;
	my.scale_y=0.3;
	my.scale_z=0.5;
	my.light=on;
	my.lightrange=50;
	my.red=0;
	my.green=0;
	my.blue=50;
	my.flare=on;
	my.transparent=on;
	my.alpha=40;
	my.bright=on;
	my.light=on;
	
	while(my && Player)
	{	
		c_move(me,vector(shoot_speed*time_step,0,0),nullvector,Ignore_Push );
		if (my.y>=(player.y+600))
		{
			ent_remove(my);
		}
		wait(1);
	}

}

Function Hit
{
	wait(1);
	my.event = null;
	ent_remove(my);
}

---

This's the code for the player bullet, it must delete itself when it something, but when i try the game, it move and don't do nothing.
Code:

---

 function move_bulletD()
{
	var bullet_speed;
	my.push=1;
	my.skill3=1;
	my.scale_x=0.3;
	my.scale_y=0.3;
	my.scale_z=0.3;
	my.passable = on;
	my.enable_impact = on;
	my.enable_entity = on;
	my.event = hit;
	my.pan = you.pan;
	bullet_speed.x = 0 ;
	bullet_speed.y = 12;
	bullet_speed.z = 0;
	my.ambient = 100;
	my.bright = on;
	my.light = on;
	my.red = 50;
	my.green = 255;
	my.blue = 50;
	while (my != null) // as long as the bullet exists
	{
		if (you != null)
		{
			if(vec_dist (my.y, you.y) > 150)
			{
				my.passable = off;
			}
			if(vec_dist(my.y, you.y) > 1000)
			{
				ent_remove(me);	
			} 
		} 
		move_mode = ignore_you + ignore_passable;
		ent_move (bullet_speed, nullvector);
		wait (1);
	}
} 

---

That's the enemy bullet, it must do the same thing of player bullet, but it delete itself after it become unpassable.
Code:

---

 function destroy_them {
	if (my.skill40 == 1) {
		ent_remove(my);
	}
	if (my.skill40 == 2) {
		my.skill20 -= 10; // decrease the shield
		my.ambient = 100;
	   sleep (0.2);
	   my.ambient = -100;
		if (my.skill20 <= 0)
		{
			ent_create(explosion_pcx, vector(my.x, my.y, my.z), animate_explosion);
			snd_play(whamm, 50, 0);
		}
	}
} 

---

And for the erase of enemy too, if a enemy ship was hitten, it must explode, but nothing happen.

Something's wrong?
How can i do?
I'm trying to fix but with no results