here is the weapon code

please if you use it, put my name in the credits.

you will ned adapt it to your needs, I have a tower gun entitie name torres, you need choose an entitie to be a gun and put the vertex of start and end the gun tuble. sorry my english is terrible.

Code:

---

//bullet code by Marcio Esper
//using NGD 1.51
// you need a gun entitie to set the bullet origen
//you need a bullet model
//examine the code, some things you can delet if i forget in the code 


entity* projetil;

var destino[6];
var origem[6];
var final [6];
var newtonImpulseRecord[8];

function baladata(material){
	
	var collisionType;
	var body;
	dll_handle = newtonHandle;
	
	body = NewtonGetBody (my);
	collisionType = my.collision_sph_box;
	body = NewtonAddMapEntity (my, collisionType);
	NewtonSetBodyMass (body, my.mass);
	NewtonSetBodyLinearDamp (body, my.linear_drag);
	NewtonSetBodyAngularDamp (body, my.angular_drag_x, my.angular_drag_y, my.angular_drag_z);
	NewtonSetBodyForceAndTorque (body, ApplyGravityForceEvent);
	NewtonSetBodyMaterial (body, material);
	NewtonSetBodyActiveState (body, my.start_active);
	vec_for_vertex(destino, torres, 130);
	vec_for_vertex(origem, torres, 78);
	//vec_diff (final,destino,origem); not need this
	
	
	//ENT_playSOUND (torres, bum, 100); - uncoment and make a sound if you need it
	
	
		       // gun end of tuble point
			newtonImpulseRecord[0] = destino.x;
			newtonImpulseRecord[1] = destino.y;
			newtonImpulseRecord[2] = destino.z;
			
			// origin of bullet (use to determone the direction of the impulse)
			newtonImpulseRecord[3] = origem.x;
			newtonImpulseRecord[4] = origem.y;
			newtonImpulseRecord[5] = origem.z;
			
			// copy the bullet mass - change it to more or less distance and damage
			newtonImpulseRecord[6] = 10000; 
			
			// copy the bullet speed - change like above
			newtonImpulseRecord[7] = 900;
			NewtonBodyAddImpulse (body, newtonImpulseRecord);

}



action bala{
	
	projetil =me;
	my.material = cores;
	my.red=255;
	my.green=200;
	my.blue=100;
	my.lightrange = 400;
	my.light=on;
	my.mass =10;
	my.health = 20;
	my.shape_factor = 0.9;
	my.start_active=1;
	baladata(wood_material);
	
}

Function tiro(){
	
	vec_for_vertex(temp, torres, 130); //get temp the position of vertex 
        ent_create("balabh.mdl", temp, bala); //you need a bullet model, in this case I use balabh.mdl, you can use a little box

	
}



on_mouse_left = tiro();

---

I hope it help you.

best regards,

Marcio