Hello, That looks like a really great method of drawing text so I coded it
in. I have three questions
1) Where is m_hFont declared and how could I access m_hFont
2) Where is sIDString declared and what type of variable is it (char*
dosen't seem to work)
3) Why do you declare so many variables in a class that will run every
frame, why not just storing them on the player under public?
Thanks for the method Oliver!
-Dest
From: Oliver <[EMAIL PROTECTED]>
Reply-To: hlcoders@list.valvesoftware.com
To: hlcoders@list.valvesoftware.com
Subject: Re: [hlcoders] Client Side Text
Date: Sun, 15 Apr 2007 23:11:22 -0400
--
[ Picked text/plain from multipart/alternative ]
Here's how we did it:
Create a client-side class that extends CHudElement and vgui::Panel
The Paint method is used to draw the text (fade as distance increases).
The
InView method determines if the other player is in view of the local
player.
I make no claims to the elegance of this code, but it does work. :)
void YourClassName::Paint()
{
C_HL2MP_Player *pLocalPlayer = C_HL2MP_Player::GetLocalHL2MPPlayer();
if ( !pLocalPlayer )
return;
Vector origin;
int x, y, length, wide, tall, offsetZ, alpha;
for ( int iEntIndex = 0; iEntIndex <
cl_entitylist->NumberOfEntities();
iEntIndex++ )
{
if ( IsPlayerIndex( iEntIndex ) )
{
C_BasePlayer *pPlayer =
static_cast<C_BasePlayer*>(cl_entitylist->GetEnt( iEntIndex ));
if( pPlayer && !pPlayer->IsLocalPlayer() )
{
if(InView(pLocalPlayer, pPlayer))
{
sIDString[0] = 0;
vgui::localize()->ConvertANSIToUnicode(pPlayer->GetPlayerName(), sIDString,
sizeof(sIDString));
length = (pPlayer->GetAbsOrigin() -
pLocalPlayer->GetAbsOrigin()).Length();
offsetZ = 72;
offsetZ += (length - 80)/12.6;
if(length <= 400) alpha = 255;
else
{
alpha = 655 - length;
if(alpha < 0) alpha = 0;
}
vgui::surface()->GetTextSize( m_hFont, sIDString,
wide,
tall );
Vector offset = Vector(0,0,offsetZ);
GetVectorInScreenSpace(pPlayer->GetAbsOrigin(), x, y,
&offset);
x -= wide/2;
vgui::surface()->DrawSetTextFont(m_hFont);
vgui::surface()->DrawSetTextPos(x, y);
vgui::surface()->DrawSetTextColor(Color(255,255,255,alpha));
vgui::surface()->DrawPrintText(sIDString,
wcslen(sIDString));
}
}
}
}
}
bool YourClassName::InView(C_BasePlayer *pLocalPlayer, C_BasePlayer
*pPlayer)
{
// Clip text that is far away
if((pLocalPlayer->GetAbsOrigin() -
pPlayer->GetAbsOrigin()).LengthSqr()
> 90000000) return false;
// Clip text that is behind the client
Vector clientForward;
pLocalPlayer->EyeVectors( &clientForward );
Vector toText = pPlayer->GetAbsOrigin() -
pLocalPlayer->GetAbsOrigin();
float dotPr = DotProduct(clientForward,toText);
if (dotPr < 0) return false;
//Clip text that is obscured
trace_t tr;
Vector forward = pPlayer->GetAbsOrigin() -
pLocalPlayer->GetAbsOrigin();
int length = forward.Length();
forward.NormalizeInPlace();
UTIL_TraceLine(pLocalPlayer->Weapon_ShootPosition(), forward *
MAX_TRACE_LENGTH, (MASK_SHOT & ~CONTENTS_WINDOW), pLocalPlayer,
COLLISION_GROUP_NONE, &tr);
if((tr.endpos - pLocalPlayer->GetAbsOrigin()).Length() < length)
{
return false;
}
return true;
}
On 4/15/07, Dest Romano <[EMAIL PROTECTED]> wrote:
>
> Hello everyone,
>
> I am attempting to draw text over other players' heads.
>
> Serverside, NDebugOverlay::Text works perfectly fine
> However, I don't want to draw text over myself, so I am going to draw it
> client side.
>
> When I do NDebugOverlay::Text clientside, it gives me an unresolved
> external
> symbol.
>
> I do have debugoverlay_shared.h included, and it is in game_shared, so I
> don't see what is wrong.
>
> baseplayer_shared.obj : error LNK2019: unresolved external symbol "void
> __cdecl NDebugOverlay::Text(class Vector const &,char const
*,bool,float)"
> ([EMAIL PROTECTED]@@YAXABVVector@@[EMAIL PROTECTED]) referenced in function
> "public: virtual void __thiscall C_BasePlayer::DrawJumbleNames(void)"
> ([EMAIL PROTECTED]@@UAEXXZ)
> 1>Release HL2MP/client.dll : fatal error LNK1120: 1 unresolved externals
>
> If anyone has another more flexible method of drawing text over entities
> client side, or a solution to this error, I would love to hear it!
>
> Thanks,
> Dest
>
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