Spawn Model on ground

[Loveboy]

Hello Guys!
Can I spawn a model, which is perfect on the surface (ground)?

I mean that's a bit shit...

[Tally]

Unfortunately, no - you can't. I've encountered this several times in my own work. In COD2, the surface which will return a solid entity using bullettrace() is often under a brush/texture and you end up with models hanging in the air. In COD4, this was fixed, and you can get the angles of geometry in a map. But, not in COD2.

[Rocky]

model should be good :P

[Loveboy]

Ah ok :/, thank you Tally

[serthy]

Unfortunately, no - you can't. I've encountered this several times in my own work. In COD2, the surface which will return a solid entity using bullettrace() is often under a brush/texture and you end up with models hanging in the air. In COD4, this was fixed, and you can get the angles of geometry in a map. But, not in COD2.

Huh?

couldn't you just use the stock SD bomb plant function?

[Tally]

Huh?

couldn't you just use the stock SD bomb plant function?

You mean maps\mp\_utility::getplant()? Yeah, been there, seen it, done it. Got the hat to testify! It's not fool-proof. It's the way the COD2 map editor can lay textures on geometry and for the "solid" parts to register below the textures. It does it with walls as well - the decals are slightly forward of the "solid" geo behind them.

This function I converted from COD4 is the best to find solid ground to spawn models on in COD2:

getGroundpoint( entity )
{
	trace = bullettrace( entity.origin+(0,0,10), entity.origin + (0,0,-2000), false, entity );
	groundpoint = trace["position"];
	
	finalz = groundpoint[2];
	
	for( angleCounter = 0; angleCounter < 10; angleCounter++ )
	{
		angle = angleCounter / 10.0 * 360.0;
			
		pos = entity.origin + (cos( angle ), sin( angle ), 0);
			
		trace = bullettrace( pos+(0,0,10), pos + (0,0,-2000), false, entity );
		hitpos = trace["position"];
			
		if( hitpos[2] > finalz && hitpos[2] < groundpoint[2] + 15 )
			finalz = hitpos[2];
	}
	
	return( groundpoint[0], groundpoint[1], finalz );
}

[IzNoGoD]

Use trace["normal"] to find the normal-vector of the surface.

That does work, and im using it in my cod4mod

[Tally]

Use trace["normal"] to find the normal-vector of the surface.

That does work, and im using it in my cod4mod

Yep, tried that, and again it is not fool proof.

[Loveboy]

Hmmm.. I tried it Tally, but it didn't worked xD

Edit: I know that I make there something wrong xD

[kung foo man]

To "align" the angles (not position), like IzNoGod said, you need the trace["normal"]:

		orientToNormal( normal )
{
    hor_normal = ( normal[ 0 ], normal[ 1 ], 0 );
    hor_length = length( hor_normal );

    if ( !hor_length )
        return( 0, 0, 0 );

    hor_dir = vectornormalize( hor_normal );
    neg_height = normal[ 2 ] * - 1;
    tangent = ( hor_dir[ 0 ] * neg_height, hor_dir[ 1 ] * neg_height, hor_length );
    plant_angle = vectortoangles( tangent );

    //println("^6hor_normal is ", hor_normal);
    //println("^6hor_length is ", hor_length);
    //println("^6hor_dir is ", hor_dir);
    //println("^6neg_height is ", neg_height);
    //println("^6tangent is ", tangent);
    //println("^6plant_angle is ", plant_angle);

    return plant_angle;
}


// ... somewhere in your code...
minigun.angles = orientToNormal(trace["normal"]);