Footsteps in DarkPlaces tutorial - Quake Game

Quake

id Software | Released Jun 19, 1996

Rage through 32 single player levels and 6 deathmatch levels of sheer terror and fully immersive sound and lighting. Arm yourself against the cannibalistic Ogre, fiendish Vore and indestructible Schambler using lethal nails, fierce Thunderbolts and abominable Rocket and Grenade Launchers.

Report article Footsteps in DarkPlaces

Want footsteps in q1? Want the sounds to depend on type of ground walking on? Keep on reading then.

Posted by DarkSnow on Jun 6th, 2005 digg this super bookmark
Basic Server Side Coding.

[page=Introduction]
One noticable thing about quake1 is that you cant hear any footsteps. The most of mods that use footstep-sounds have the same thumping sound no matter what type of ground you are walking on.
This tutor will add texture-based sounds :)

[page=The code]
Lets get down to buissnes.

player.qc
Add the following code before void player_run

 code:
v&#111;id&#40;entity e&#41; walks&#111;und ={
  l&#111;cal fl&#111;at surfnum, r;
  l&#111;cal string s;
 
  makevect&#111;rs&#40;e.v_angle&#41;;
 
  surfnum = getsurfacenearp&#111;int&#40;w&#111;rld, e.&#111;rigin - &#39;0 0 24&#39;&#41;;
  if &#40;surfnum &#62;= 0&#41;
  {
    s = getsurfacetexture&#40;w&#111;rld, surfnum&#41;;
    if &#40;s == &#34;wizmet1_2&#34;&#41;
    {
      bprint&#40;&#34;play metal&#092;n&#34;&#41;;
      r = rint&#40;rand&#111;m&#40;&#41; * 3&#41;;      
      if &#40;r == 0&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/metal1.wav&#34;, 0.5, ATTN_NORM&#41;;
      else if &#40;r == 1&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/metal2.wav&#34;, 0.5, ATTN_NORM&#41;;
      else if &#40;r == 2&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/metal3.wav&#34;, 0.5, ATTN_NORM&#41;;
      else
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/metal4.wav&#34;, 0.5, ATTN_NORM&#41;;
    }
    else
    {
      bprint&#40;&#34;play generic&#092;n&#34;&#41;;
      r = rint&#40;rand&#111;m&#40;&#41; * 4&#41;;      
      if &#40;r == 0&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/generic1.wav&#34;, 0.5, ATTN_NORM&#41;;
      else if &#40;r == 1&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/generic2.wav&#34;, 0.5, ATTN_NORM&#41;;
      else if &#40;r == 2&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/generic3.wav&#34;, 0.5, ATTN_NORM&#41;;
      else if &#40;r == 3&#41;
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/generic4.wav&#34;, 0.5, ATTN_NORM&#41;;
      else
        s&#111;und &#40;e, CHAN_AUTO, &#34;walk/generic5.wav&#34;, 0.5, ATTN_NORM&#41;;
    }
  }
};
 

in void player_run find

 code:
v&#111;id&#40;&#41; player_run =&#91; &#036;r&#111;ckrun1,  player_run  &#93;
{
 

and add the following code directly after it

 code:
if &#40;self.walkframe == 1 &#124;&#124; self.walkframe == 4 &#41;
    if &#40;checkb&#111;tt&#111;m&#40;self&#41; == TRUE&#41;
      if &#40;self.waterlevel == 0&#41;
        walks&#111;und &#40;self&#41;;
 

world.qc
find

 code:
precache_s&#111;und &#40;&#34;misc/water1.wav&#34;&#41;;      // swimming
  precache_s&#111;und &#40;&#34;misc/water2.wav&#34;&#41;;      // swimming
 

and add after that

 code:
precache_s&#111;und &#40;&#34;walk/generic1.wav&#34;&#41;;      
  precache_s&#111;und &#40;&#34;walk/generic2.wav&#34;&#41;;      
  precache_s&#111;und &#40;&#34;walk/generic3.wav&#34;&#41;;      
  precache_s&#111;und &#40;&#34;walk/generic4.wav&#34;&#41;;
  precache_s&#111;und &#40;&#34;walk/generic5.wav&#34;&#41;;
  precache_s&#111;und &#40;&#34;walk/metal1.wav&#34;&#41;;      
  precache_s&#111;und &#40;&#34;walk/metal2.wav&#34;&#41;;      
  precache_s&#111;und &#40;&#34;walk/metal3.wav&#34;&#41;;      
  precache_s&#111;und &#40;&#34;walk/metal4.wav&#34;&#41;;      
 

defs.qc
in bottom of defs.qc add

 code:
//DP_QC_GETSURFACE
//idea&#58; L&#111;rdHav&#111;c
//darkplaces implementati&#111;n&#58; L&#111;rdHav&#111;c
//builtin definiti&#111;ns&#58;
fl&#111;at&#40;entity e, fl&#111;at s&#41; getsurfacenump&#111;ints = #434;
vect&#111;r&#40;entity e, fl&#111;at s, fl&#111;at n&#41; getsurfacep&#111;int = #435;
vect&#111;r&#40;entity e, fl&#111;at s&#41; getsurfacen&#111;rmal = #436;
string&#40;entity e, fl&#111;at s&#41; getsurfacetexture = #437;
fl&#111;at&#40;entity e, vect&#111;r p&#41; getsurfacenearp&#111;int = #438;
vect&#111;r&#40;entity e, fl&#111;at s, vect&#111;r p&#41; getsurfaceclippedp&#111;int = #439;
//de&#115;cripti&#111;n&#58;
//functi&#111;ns t&#111; query surface inf&#111;rmati&#111;n.
 

(or use dpmods own extensions qc file)

[page=How it works]
void walksound basicly checks what texture the player is standing on, and depending on the texture emits the apropriate sound.

For this to work you will need some sounds. You can make your own or use some sounds from another game. Rename them and place them in the apropriate directory to match:
* walk/generic1.wav
* walk/generic2.wav
* walk/generic2.wav
* walk/generic2.wav
* walk/generic2.wav
For generic footstep sounds, and ...
* walk/metal1.wav
* walk/metal2.wav
* walk/metal3.wav
* walk/metal4.wav
... for sounds of walking on metal surfaces.

You can use this function to do alot of stuff with some tweeking. I made texture-based ricoche sounds for a q1 cs mod :)

[page=Credits]
LordHavoc :: DarkPlaces engine and the extensions
Ze0 :: Footsteps Tutorial on Inside3D
MauveBib :: Mentioned the extention through irc
Me :: Experimenting and writing about it
---
Mail/msn: ego@babiestastegood.com