Spawning NPC names

WiLLyRS · 05-27-2011 02:32 PM

Hi, I have a little problem with the spawning of the other players and npc name above their head. I've done this and it works:

Code:

    for(int i=0; true; i++)        //printing NPCs names

    {

        NPCchar *temp = mWorld.getNPC(i);

        if (temp == false) break;

        Vec2 screen = PosToScreen(temp->pos());

        screen.y += 0.4f;

        D.text(screen, S + temp->name);

    }

my problem is that if I turn 180°, I'm still able to see their name. How can I control if I'm facing the right way?

Zervox · 05-27-2011 02:38 PM

PosToScreenM()

WiLLyRS · 05-27-2011 02:45 PM

thanks ^^

yvanvds · 05-27-2011 11:47 PM

I'm doing it this way. It also prints the names of players smaller if they are further away and takes into account that not players have the same size. (Also my players can choose their avatar color, so each name is displayed in the same color as the player.)

According to Camera.h, PosToScreenM transforms by the current object matrix. But both functions have a variant with two arguments that returns false if the object is behind the camera.

PHP Code:

void cPeer::draw2D() {
    // draw name of nearby characters
    Flt distance = 1.0f;
    if (Players.elms()) {
        Vec myPos = Players[0].pos();
        distance = Dist(myPos, pos());
    }
    Vec2 screen;
    if (PosToScreen(pos() + Vec(0, cskel.scale() * 0.75f, 0), screen)) {
        tds.color = color;
        tds.scale = 0.04 * (2 - distance / 10);
        if (tds.scale.x > 0.01) {
            D.text(tds, screen, name);
        }
    }
} 

WiLLyRS · 05-28-2011 11:42 AM

lol i should have look better the functions, i wrote a function Dist() by myself XD
I was trying to do something like that but I was still trying to find a good "function" for the text scale pfft

D.text(tds, screen, name) tells me that the function doesn't match the arguments :(

yvanvds · 05-28-2011 12:07 PM

static void text(TextDS &tds, C Vec2 &p , CChar *t, Int max_length=-1);

tds is a TextDS, screen is Vec2, name was not clear in the example above but could be a Str. Actually the max_length variable could be interesting too, in case someone comes up with a very long username.

WiLLyRS · 05-30-2011 11:34 AM

Thanks, now I've adapted it to mine! I had to do D.text(tds,screen,name,-1), don't know why! smile

Spawning NPC names
Author	Message