revision to walk animation/system
[carveJwlIkooP6JGAAIwe30JlM.git] / player_walk.c
index ca264f33160051159fc5846181b2ffda4e1fc6a3..e359423035a97c23eb80aec6773d9851e9b12d84 100644 (file)
@@ -7,18 +7,14 @@
 
 static void player_walk_drop_in_vector( v3f vec ){
    v3f axis, init_dir;
-   v3_cross( localplayer.basis[1], player_walk.state.drop_in_normal, axis );
+   v3_cross( (v3f){0.0f,1.0f,0.0f}, player_walk.state.drop_in_normal, axis );
    v3_cross( axis, player_walk.state.drop_in_normal, init_dir );
    v3_normalize( init_dir );
-   v3_muls( init_dir, 7.0f, vec );
+   v3_muls( init_dir, 4.25f, vec );
 }
 
 static float player_xyspeed2(void){
-   v3f xy;
-   v3_muladds( localplayer.rb.v, localplayer.basis[1], 
-               -v3_dot( localplayer.basis[1], localplayer.rb.v ), xy );
-
-   return v3_length2(xy);
+   return v3_length2( (v3f){localplayer.rb.v[0], 0.0f, localplayer.rb.v[2]} );
 }
 
 static void player_walk_generic_to_skate( enum skate_activity init, f32 yaw ){
@@ -37,11 +33,9 @@ static void player_walk_generic_to_skate( enum skate_activity init, f32 yaw ){
    v3f dir;
    v3_copy( v, dir );
    v3_normalize( dir );
-   m3x3_mulv( localplayer.invbasis, dir, dir );
 
    q_axis_angle( localplayer.rb.q, (v3f){0.0f,1.0f,0.0f}, 
                  atan2f(-dir[0],-dir[2]) );
-   q_mul( localplayer.qbasis, localplayer.rb.q, localplayer.rb.q );
    q_normalize( localplayer.rb.q );
 
    q_mulv( localplayer.rb.q, (v3f){0.0f,1.0f,0.0f}, player_skate.state.cog );
@@ -50,7 +44,7 @@ static void player_walk_generic_to_skate( enum skate_activity init, f32 yaw ){
    v3_copy( v, player_skate.state.cog_v );
    v3_copy( v, localplayer.rb.v );
 
-   player__begin_holdout();
+   player__begin_holdout( (v3f){0.0f,0.0f,0.0f} );
    player__skate_reset_animator();
    player__skate_clear_mechanics();
    rb_update_transform( &localplayer.rb );
@@ -67,7 +61,7 @@ static void player_walk_drop_in_to_skate(void){
    player_skate.state.activity_prev = k_skate_activity_ground;
    player_skate.state.activity = k_skate_activity_ground;
 
-   player__begin_holdout();
+   player__begin_holdout( (v3f){0.0f,0.0f,0.0f} );
    player__skate_clear_mechanics();
    player__skate_reset_animator();
 
@@ -85,7 +79,7 @@ static void player_walk_drop_in_to_skate(void){
 
 static void player_walk_drop_in_overhang_transform( f32 t, v3f co, v4f q ){
    v3f axis;
-   v3_cross( localplayer.basis[1], player_walk.state.drop_in_normal, axis );
+   v3_cross( (v3f){0,1,0}, player_walk.state.drop_in_normal, axis );
    v3_normalize( axis );
 
    float a = acosf( player_walk.state.drop_in_normal[1] ) * t;
@@ -228,6 +222,9 @@ static int player_walk_scan_for_drop_in(void){
 static struct skeleton_anim *player_walk_outro_anim( enum walk_outro type ){
    struct player_walk *w = &player_walk;
 
+   if( type >= k_walk_outro_max )
+      return NULL;
+
    return (struct skeleton_anim *[]){ 
             [k_walk_outro_none]        = NULL,
             [k_walk_outro_jump_to_air] = w->anim_jump_to_air,
@@ -243,6 +240,40 @@ static void player__walk_pre_update(void){
    if( !localplayer.immobile )
       player_look( localplayer.angles, skaterift.time_rate );
 
+   v2f steer;
+   joystick_state( k_srjoystick_steer, steer );
+
+   if( w->state.activity == k_walk_activity_sit ){
+      if( w->state.sit_t < 1.0f )
+         w->state.sit_t = vg_minf( 1.0f, w->state.sit_t + vg.time_delta );
+
+      if( button_down(k_srbind_sit) || (v2_length2(steer)>0.2f) ||
+          button_down(k_srbind_jump) ){
+         w->state.activity = k_walk_activity_sit_up;
+      }
+      return;
+   }
+   else if( w->state.activity == k_walk_activity_sit_up ){
+      if( w->state.sit_t > 0.0f )
+         w->state.sit_t = vg_maxf( 0.0f, w->state.sit_t - vg.time_delta );
+      else 
+         w->state.activity = k_walk_activity_ground;
+
+      if( button_down(k_srbind_sit) )
+         w->state.activity = k_walk_activity_sit;
+
+      return;
+   }
+   else if( w->state.activity == k_walk_activity_ground ){
+      if( button_down(k_srbind_sit) ){
+         v3_zero( localplayer.rb.v );
+         w->state.activity = k_walk_activity_sit;
+         return;
+      }
+   }
+
+   w->state.sit_t = 0.0f;
+
    if( w->state.outro_type ){
       struct skeleton_anim *anim = player_walk_outro_anim(w->state.outro_type);
 
@@ -265,7 +296,7 @@ static void player__walk_pre_update(void){
       }
    }
    else if( button_down( k_srbind_use ) && !localplayer.immobile ){
-      if( v3_dist2( localplayer.rb.co, gzoomer.obj.rb.co ) <= 4.0f*4.0f ){
+      if( 0 && (v3_dist2(localplayer.rb.co,gzoomer.obj.rb.co) <= 4.0f*4.0f) ){
          localplayer.subsystem = k_player_subsystem_drive;
       }
       else{
@@ -281,9 +312,10 @@ static void player__walk_pre_update(void){
                w->state.outro_start_time = vg.time;
                localplayer.immobile = 1;
 
-               struct player_avatar *av = localplayer.playeravatar;
-               m4x3_mulv( localplayer.final_mtx[ av->id_ik_foot_r ], 
-                          av->sk.bones[ av->id_ik_foot_r ].co, 
+               u32 foot_id = localplayer.id_ik_foot_r;
+
+               m4x3_mulv( localplayer.final_mtx[ foot_id ], 
+                          localplayer.skeleton.bones[ foot_id ].co, 
                           w->state.drop_in_foot_anchor );
             }
             else{
@@ -311,7 +343,7 @@ static void player__walk_pre_update(void){
 }
 
 static int player_walk_normal_standable( v3f n ){
-   return v3_dot( n, localplayer.basis[1] ) > 0.70710678118f;
+   return n[1] > 0.70710678118f;
 }
 
 static void player_accelerate( v3f v, v3f movedir, f32 speed, f32 accel ){
@@ -384,6 +416,15 @@ static void player_walk_custom_filter( world_instance *world,
 
 static void player__walk_update(void){
    struct player_walk *w = &player_walk;
+
+   v2f steer;
+   joystick_state( k_srjoystick_steer, steer );
+
+   if( (w->state.activity == k_walk_activity_sit) ||
+       (w->state.activity == k_walk_activity_sit_up) ){
+      return;
+   }
+
    v3_copy( localplayer.rb.co, w->state.prev_pos );
    v3_zero( localplayer.rb.w );
 
@@ -391,8 +432,10 @@ static void player__walk_update(void){
 
    if( world->water.enabled ){
       if( localplayer.rb.co[1]+0.4f < world->water.height ){
-         audio_oneshot_3d( &audio_splash, localplayer.rb.co, 40.0f, 1.0f );
-         player__dead_transition();
+         player__networked_sfx( k_player_subsystem_walk, 32, 
+                                k_player_walk_soundeffect_splash,
+                                localplayer.rb.co, 1.0f );
+         player__dead_transition( k_player_die_type_generic );
          return;
       }
    }
@@ -404,7 +447,7 @@ static void player__walk_update(void){
 
    m4x3f mtx;
    m3x3_copy( localplayer.rb.to_world, mtx );
-   v3_add( localplayer.rb.co, localplayer.basis[1], mtx[3] );
+   v3_add( localplayer.rb.co, (v3f){0,1,0}, mtx[3] );
 
    vg_line_capsule( mtx, w->collider.radius, w->collider.height, VG__WHITE );
 
@@ -416,14 +459,6 @@ static void player__walk_update(void){
    v3f forward_dir = { -sinf(yaw),         0.0f,  cosf(yaw) };
    v3f right_dir   = {  forward_dir[2],    0.0f, -forward_dir[0] };
 
-   m3x3_mulv( localplayer.basis, forward_dir, forward_dir );
-   m3x3_mulv( localplayer.basis, right_dir,   right_dir );
-
-   v2f steer;
-   joystick_state( k_srjoystick_steer, steer );
-
-   w->move_speed = localplayer.immobile? 0.0f: v2_length( steer );
-
    /* 
     * Collision detection
     */
@@ -480,7 +515,7 @@ static void player__walk_update(void){
       }
 
       accel_speed = k_walk_accel;
-      nominal_speed = k_walkspeed;
+      nominal_speed = button_press(k_srbind_run)? k_runspeed: k_walkspeed;
 
       /* jump */
       if( w->state.jump_queued ){
@@ -488,11 +523,7 @@ static void player__walk_update(void){
 
          f32 t = vg.time - w->state.jump_input_time;
          if( t < PLAYER_JUMP_EPSILON ){
-            float d = v3_dot( localplayer.basis[1], localplayer.rb.v );
-            v3_muladds( localplayer.rb.v, localplayer.basis[1], -d,
-                        localplayer.rb.v );
-            v3_muladds( localplayer.rb.v, localplayer.basis[1], 5.0f, 
-                        localplayer.rb.v );
+            localplayer.rb.v[1] = 5.0f;
             w->state.activity = k_walk_activity_air;
             prev_state = k_walk_activity_air;
             accel_speed = k_walk_air_accel;
@@ -513,6 +544,10 @@ static void player__walk_update(void){
                          nominal_speed, accel_speed );
       v3_normalize( movedir );
    }
+
+   w->move_speed = vg_minf( v2_length( (v2f){ localplayer.rb.v[0], 
+                                              localplayer.rb.v[2] } ),
+                            k_runspeed );
    
    /*
     * Resolve velocity constraints
@@ -539,8 +574,8 @@ static void player__walk_update(void){
 
       v3f pa, pb;
       v3_copy( localplayer.rb.co, pa );
-      v3_muladds( pa, localplayer.basis[1], w->collider.radius + max_dist, pa );
-      v3_muladds( pa, localplayer.basis[1], -max_dist * 2.0f, pb );
+      pa[1] += w->collider.radius + max_dist;
+      v3_add( pa, (v3f){0, -max_dist * 2.0f, 0}, pb );
       vg_line( pa, pb, 0xff000000 );
 
       v3f n;
@@ -549,16 +584,12 @@ static void player__walk_update(void){
                             w->collider.radius, &t, n, 0 ) != -1 ){
          if( player_walk_normal_standable(n) ){
             v3_lerp( pa, pb, t, localplayer.rb.co );
-            v3_muladds( localplayer.rb.co, localplayer.basis[1], 
-                        -w->collider.radius - k_penetration_slop,
-                        localplayer.rb.co );
+            localplayer.rb.co[1] += -w->collider.radius - k_penetration_slop;
             w->state.activity = k_walk_activity_ground;
 
-            float d = -v3_dot(n,localplayer.rb.v),
-                  g = -k_gravity * k_rb_delta;
+            float d = -v3_dot(n,localplayer.rb.v);
             v3_muladds( localplayer.rb.v, n, d, localplayer.rb.v );
-            v3_muladds( localplayer.rb.v, localplayer.basis[1], g, 
-                        localplayer.rb.v );
+            localplayer.rb.v[1] += -k_gravity * k_rb_delta;
          }
       }
    }
@@ -572,8 +603,7 @@ static void player__walk_update(void){
 
    /* integrate */
    if( w->state.activity == k_walk_activity_air ){
-      v3_muladds( localplayer.rb.v, localplayer.basis[1], -k_gravity*k_rb_delta, 
-                  localplayer.rb.v );
+      localplayer.rb.v[1] += -k_gravity*k_rb_delta;
    }
 
    if( localplayer.immobile ){
@@ -583,7 +613,7 @@ static void player__walk_update(void){
 
    v3_muladds( localplayer.rb.co, localplayer.rb.v, k_rb_delta, 
                localplayer.rb.co );
-   v3_add( localplayer.rb.co, localplayer.basis[1], mtx[3] );
+   v3_add( localplayer.rb.co, (v3f){0,1,0}, mtx[3] );
    vg_line_capsule( mtx, w->collider.radius, w->collider.height, VG__GREEN );
 
    /* 
@@ -612,7 +642,7 @@ static void player__walk_update(void){
          localplayer.rb.co[1] -= w->collider.radius;
          rb_update_transform( &localplayer.rb );
 
-         v3_add( localplayer.rb.co, localplayer.basis[1], mtx[3] );
+         v3_add( localplayer.rb.co, (v3f){0,1,0}, mtx[3] );
          vg_line_capsule( mtx, w->collider.radius, w->collider.height, VG__RED);
       }
    }
@@ -638,7 +668,7 @@ static void player__walk_post_update(void){
 
    m4x3f mtx;
    m3x3_copy( localplayer.rb.to_world, mtx );
-   v3_add( localplayer.rb.co, localplayer.basis[1], mtx[3] );
+   v3_add( localplayer.rb.co, (v3f){0,1,0}, mtx[3] );
 
    float substep = vg.time_fixed_extrapolate;
    v3_muladds( mtx[3], localplayer.rb.v, k_rb_delta*substep, mtx[3] );
@@ -647,15 +677,9 @@ static void player__walk_post_update(void){
 
    /* Calculate header */
    v3f v;
-   if( player_xyspeed2() > 0.1f*0.1f )
-   {
-      v3f v_xy;
-      m3x3_mulv( localplayer.invbasis, localplayer.rb.v, v_xy );
-      float a = atan2f( v_xy[0], v_xy[2] );
-
+   if( player_xyspeed2() > 0.1f*0.1f ){
+      float a = atan2f( localplayer.rb.v[0], localplayer.rb.v[2] );
       q_axis_angle( localplayer.rb.q, (v3f){0.0f,1.0f,0.0f}, a );
-      q_mul( localplayer.qbasis, localplayer.rb.q, localplayer.rb.q );
-      q_normalize( localplayer.rb.q );
    }
 
    vg_line_point( w->state.drop_in_target, 0.1f, VG__GREEN );
@@ -673,12 +697,10 @@ static void player__walk_post_update(void){
    p1[0] = sinf( a );
    p1[1] = 0.0f;
    p1[2] = cosf( a );
-   m3x3_mulv( localplayer.basis, p1, p1 );
 
    v3_add( localplayer.rb.co, p1, p1 );
    vg_line( localplayer.rb.co, p1, VG__PINK );
 
-
    int walk_phase = 0;
    if( vg_fractf(w->state.walk_timer) > 0.5f )
       walk_phase = 1;
@@ -691,20 +713,21 @@ static void player__walk_post_update(void){
       audio_lock();
       if( w->surface == k_surface_prop_concrete ){
          audio_oneshot_3d( 
-               &audio_footsteps[vg_randu32()%vg_list_size(audio_footsteps)], 
+               &audio_footsteps[vg_randu32(&vg.rand) % 
+                                 vg_list_size(audio_footsteps)], 
                localplayer.rb.co, 40.0f, 1.0f 
          );
       }
       else if( w->surface == k_surface_prop_grass ){
          audio_oneshot_3d( 
-           &audio_footsteps_grass[ vg_randu32()%
+           &audio_footsteps_grass[ vg_randu32(&vg.rand) %
                                     vg_list_size(audio_footsteps_grass)],
             localplayer.rb.co, 40.0f, 1.0f 
          );
       }
       else if( w->surface == k_surface_prop_wood ){
          audio_oneshot_3d( 
-           &audio_footsteps_wood[ vg_randu32()%
+           &audio_footsteps_wood[ vg_randu32(&vg.rand) %
                                     vg_list_size(audio_footsteps_wood)],
             localplayer.rb.co, 40.0f, 1.0f 
          );
@@ -731,31 +754,54 @@ static void player__walk_animate(void){
 
       animator->fly = vg_lerpf( animator->fly, fly, rate*vg.time_delta );
       animator->run = vg_lerpf( animator->run, w->move_speed, 
-                                2.0f*vg.time_delta);
+                                8.0f*vg.time_delta);
    }
 
-   if( w->move_speed > 0.025f ){
-      /* TODO move */
-      float walk_norm = 30.0f/(float)w->anim_walk->length,
-            run_norm  = 30.0f/(float)w->anim_run->length,
-            walk_adv  = vg_lerpf( walk_norm, run_norm, w->move_speed );
+   if( animator->run > 0.025f ){
+      f32 walk_norm = 30.0f/(float)w->anim_walk->length,
+          run_norm  = 30.0f/(float)w->anim_run->length,
+          l;
 
-      w->state.walk_timer += walk_adv * vg.time_delta;
+      if( animator->run <= k_walkspeed )
+         l = (animator->run / k_walkspeed) * walk_norm;
+      else {
+         l = vg_lerpf( walk_norm, run_norm, 
+                      (animator->run-k_walkspeed) / (k_runspeed-k_walkspeed) );
+      }
+      w->state.walk_timer += l * vg.time_delta;
    }
    else
       w->state.walk_timer = 0.0f;
    animator->walk_timer = w->state.walk_timer;
 
-   if( !localplayer.immobile )
-      rb_extrapolate( &localplayer.rb, animator->root_co, animator->root_q );
-   else{
+   if( localplayer.immobile || (w->state.outro_type == k_walk_outro_drop_in) ){
       v3_copy( localplayer.rb.co, animator->root_co );
       v4_copy( localplayer.rb.q,  animator->root_q );
    }
+   else{
+      rb_extrapolate( &localplayer.rb, animator->root_co, animator->root_q );
+   }
 
    f32 walk_yaw = player_get_heading_yaw();
+
+   /* sitting */
+   animator->sit_t = w->state.sit_t;
+
+   {
+      f32 head_yaw = localplayer.angles[0] + VG_PIf,
+          y = vg_angle_diff( head_yaw, -walk_yaw ),
+          p = vg_clampf( localplayer.angles[1], 
+                           -k_sit_pitch_limit, k_sit_pitch_limit );
+
+      if( fabsf(y) > k_sit_yaw_limit ){
+         y = 0.0f;
+         p = 0.0f;
+      }
+      animator->yaw = vg_lerpf( animator->yaw, y, vg.time_delta*2.0f );
+      animator->pitch = vg_lerpf( animator->pitch, p, vg.time_delta*2.8f );
+   }
+
    if( w->state.outro_type ){
-      struct player_avatar *av = localplayer.playeravatar;
       struct skeleton_anim *anim = 
          player_walk_outro_anim( w->state.outro_type );
       f32 outro_length = (f32)anim->length / anim->rate,
@@ -778,6 +824,15 @@ static void player__walk_animate(void){
 
          v3_lerp( w->state.drop_in_start, w->state.drop_in_target,
                   step_t, localplayer.rb.co );
+         v3_copy( localplayer.rb.co, animator->root_co );
+
+         /* for the camera purposes only */
+         v3f init_velocity;
+         player_walk_drop_in_vector( init_velocity );
+         v3_muls( init_velocity, dop_t, localplayer.rb.v );
+         v3_copy( localplayer.rb.v, 
+                  localplayer.cam_control.cam_velocity_smooth );
+
          q_axis_angle( animator->root_q, (v3f){0.0f,1.0f,0.0f}, 
                        walk_yaw + VG_PIf );
 
@@ -785,15 +840,22 @@ static void player__walk_animate(void){
 
          /* the drop in bit */
          if( step_t >= 1.0f ){
+            v3f final_co;
             v4f final_q;
-            player_walk_drop_in_overhang_transform( dop_t, localplayer.rb.co, 
-                                                    final_q );
+            player_walk_drop_in_overhang_transform( dop_t, final_co, final_q );
+
             q_mul( final_q, animator->root_q, animator->root_q );
+            v3_copy( final_co, animator->root_co );
+
 
             v4_copy( animator->root_q, localplayer.rb.q );
+            rb_update_transform( &localplayer.rb );
+
             v3_muladds( animator->root_co, localplayer.rb.to_world[1], 
                         -0.1f*dop_t, animator->root_co );
+            v3_copy( animator->root_co, localplayer.rb.co );
          }
+
          return;
       }
       else{
@@ -803,15 +865,12 @@ static void player__walk_animate(void){
    }
 
    q_axis_angle( animator->root_q, (v3f){0.0f,1.0f,0.0f}, walk_yaw + VG_PIf );
-   q_mul( localplayer.qbasis, animator->root_q, animator->root_q );
-   q_normalize( animator->root_q );
 }
 
 static void player__walk_pose( void *_animator, player_pose *pose ){
    struct player_walk *w = &player_walk;
    struct player_walk_animator *animator = _animator;
-   struct skeleton *sk = &localplayer.playeravatar->sk;
-   struct player_avatar *av = localplayer.playeravatar;
+   struct skeleton *sk = &localplayer.skeleton;
 
    v3_copy( animator->root_co, pose->root_co );
    v4_copy( animator->root_q, pose->root_q );
@@ -820,27 +879,59 @@ static void player__walk_pose( void *_animator, player_pose *pose ){
 
    float walk_norm = (float)w->anim_walk->length/30.0f,
          run_norm  = (float)w->anim_run->length/30.0f,
-         t = animator->walk_timer,
-         l = vg_clampf( animator->run*15.0f, 0.0f, 1.0f ),
-         idle_walk = vg_clampf( (animator->run-0.1f)/(1.0f-0.1f), 0.0f, 1.0f );
+         t = animator->walk_timer;
 
    /* walk/run */
    mdl_keyframe apose[32], bpose[32];
-   skeleton_sample_anim( sk, w->anim_walk, t*walk_norm, apose );
-   skeleton_sample_anim( sk, w->anim_run,  t*run_norm, bpose );
-
-   skeleton_lerp_pose( sk, apose, bpose, l, apose );
+   if( animator->run <= k_walkspeed ){ 
+      /* walk / idle */
+      f32 l = vg_minf( 1, (animator->run/k_walkspeed)*6.0f );
+      skeleton_sample_anim( sk, w->anim_idle, vg.time*0.1f, apose );
+      skeleton_sample_anim( sk, w->anim_walk, t*walk_norm, bpose );
+      skeleton_lerp_pose( sk, apose, bpose, l, apose );
+   }
+   else { 
+      /* walk / run */
+      f32 l = (animator->run-k_walkspeed) / (k_runspeed-k_walkspeed);
+      skeleton_sample_anim( sk, w->anim_walk, t*walk_norm, apose );
+      skeleton_sample_anim( sk, w->anim_run, t*run_norm, bpose );
+      skeleton_lerp_pose( sk, apose, bpose, l, apose );
+   }
 
-   /* idle */
-   skeleton_sample_anim( sk, w->anim_idle, vg.time*0.1f, bpose );
-   skeleton_lerp_pose( sk, apose, bpose, 1.0f-idle_walk, apose );
 
    /* air */
    skeleton_sample_anim( sk, w->anim_jump, vg.time*0.6f, bpose );
    skeleton_lerp_pose( sk, apose, bpose, animator->fly, apose );
 
+   /* sit */
+   if( animator->sit_t > 0.0f ){
+      f32 sit_norm = (f32)(w->anim_sit->length-1)/30.0f,
+                st = vg_minf( 1.0f, animator->sit_t );
+      skeleton_sample_anim( sk, w->anim_sit, st*sit_norm, bpose );
+
+      v4f qy,qp;
+      f32 *qh = bpose[localplayer.id_head-1].q;
+      q_axis_angle( qy, (v3f){0.0f,1.0f,0.0f}, animator->yaw*0.5f*st );
+      q_axis_angle( qp, (v3f){0.0f,0.0f,1.0f}, animator->pitch*st );
+      q_mul( qy, qh, qh );
+      q_mul( qh, qp, qh );
+      q_normalize( qh );
+
+      qh = bpose[localplayer.id_chest-1].q;
+      q_axis_angle( qy, (v3f){0.0f,1.0f,0.0f}, animator->yaw*0.5f*st );
+      q_mul( qy, qh, qh );
+      q_normalize( qh );
+
+      skeleton_lerp_pose( sk, apose, bpose, vg_minf(1.0f,st*10.0f), apose );
+   }
+
    if( animator->outro_type ){
       struct skeleton_anim *anim = player_walk_outro_anim(animator->outro_type);
+
+      if( !anim ){
+         skeleton_copy_pose( sk, apose, pose->keyframes );
+         return;
+      }
       
       f32 outro_length = (f32)anim->length / anim->rate,
           outro_time = animator->outro_t*outro_length;
@@ -858,9 +949,10 @@ static void player__walk_pose( void *_animator, player_pose *pose ){
          v3f anchored_pos;
          m4x3_mulv( inverse, animator->foot_anchor, anchored_pos );
 
-         v3_lerp( pose->keyframes[ av->id_ik_foot_r-1 ].co, anchored_pos, 
+         v3_lerp( pose->keyframes[ localplayer.id_ik_foot_r-1 ].co, 
+                  anchored_pos, 
                   1.0f-animator->commit_t,
-                  pose->keyframes[ av->id_ik_foot_r-1 ].co );
+                  pose->keyframes[ localplayer.id_ik_foot_r-1 ].co );
       }
    }
    else
@@ -872,7 +964,6 @@ static void player__walk_post_animate(void){
     * Camera 
     */
    struct player_walk *w = &player_walk;
-   struct player_avatar *av = localplayer.playeravatar;
 
    if( w->state.outro_type ){
       struct skeleton_anim *anim = player_walk_outro_anim(w->state.outro_type);
@@ -899,7 +990,9 @@ static void player__walk_im_gui(void){
                            (const char *[]){ "k_walk_activity_air",
                                              "k_walk_activity_ground",
                                              "k_walk_activity_sleep",
-                                             "k_walk_activity_lockedmove" }
+                                             "k_walk_activity_lockedmove",
+                                             "k_walk_activity_sit",
+                                             "k_walk_activity_sit_up" }
                                              [w->state.activity] );
    player__debugtext( 1, "surface: %s\n",
                            (const char *[]){ "concrete",
@@ -921,8 +1014,7 @@ static void player__walk_im_gui(void){
 
 static void player__walk_bind(void){
    struct player_walk *w = &player_walk;
-   struct player_avatar *av = localplayer.playeravatar;
-   struct skeleton *sk = &av->sk;
+   struct skeleton *sk = &localplayer.skeleton;
 
    w->anim_idle         = skeleton_get_anim( sk, "idle_cycle+y" );
    w->anim_walk         = skeleton_get_anim( sk, "walk+y" );
@@ -931,6 +1023,7 @@ static void player__walk_bind(void){
    w->anim_jump_to_air  = skeleton_get_anim( sk, "jump_to_air" );
    w->anim_drop_in      = skeleton_get_anim( sk, "drop_in" );
    w->anim_intro        = skeleton_get_anim( sk, "into_skate" );
+   w->anim_sit          = skeleton_get_anim( sk, "sit" );
 }
 
 static void player__walk_transition(void){
@@ -945,27 +1038,61 @@ static void player__walk_transition(void){
 
    v3f fwd = { 0.0f, 0.0f, 1.0f };
    q_mulv( localplayer.rb.q, fwd, fwd );
-   m3x3_mulv( localplayer.invbasis, fwd, fwd );
-
    q_axis_angle( localplayer.rb.q, (v3f){0.0f,1.0f,0.0f}, 
                  atan2f(fwd[0], fwd[2]) );
-   q_mul( localplayer.qbasis, localplayer.rb.q, localplayer.rb.q );
-   q_normalize( localplayer.rb.q );
 
    rb_update_transform( &localplayer.rb );
 }
 
-static void player__walk_reset( ent_spawn *rp ){
+static void player__walk_reset(void){
    struct player_walk *w = &player_walk;
    w->state.activity = k_walk_activity_air;
    w->state.outro_type = k_walk_outro_none;
    w->state.outro_start_time = 0.0;
+
+   v3f fwd = { 0.0f, 0.0f, 1.0f };
+   q_mulv( localplayer.rb.q, fwd, fwd );
+   q_axis_angle( localplayer.rb.q, (v3f){0.0f,1.0f,0.0f}, 
+                 atan2f(fwd[0], fwd[2]) );
+
+   rb_update_transform( &localplayer.rb );
 }
 
 static void player__walk_animator_exchange( bitpack_ctx *ctx, void *data ){
    struct player_walk_animator *animator = data;
-   //bitpack_bytes( ctx, sizeof(*animator), animator );
-   bitpack_bytes( ctx, sizeof(animator->root_co), animator->root_co );
+
+   bitpack_qv3f( ctx, 24, -1024.0f, 1024.0f, animator->root_co );
    bitpack_qquat( ctx, animator->root_q );
+   bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->fly );
+   bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->run );
+   bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->walk );
+   bitpack_qf32( ctx, 16, 0.0f, 120.0f, &animator->walk_timer );
+
+   for( int i=0; i<1; i++ ){ /* without this you get a warning from gcc. lol */
+      bitpack_bytes( ctx, 8, &animator->outro_type );
+      if( animator->outro_type ){
+         bitpack_bytes( ctx, sizeof(animator->foot_anchor), 
+                        animator->foot_anchor );
+         bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->outro_t );
+         bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->commit_t );
+      }
+   }
+
+   u32 code = bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->sit_t );
+   if( code ){
+      bitpack_qf32( ctx, 8, -k_sit_yaw_limit, k_sit_yaw_limit, &animator->yaw );
+      bitpack_qf32( ctx, 8, -k_sit_pitch_limit, k_sit_pitch_limit, 
+                     &animator->pitch );
+   }
+}
+
+static void player__walk_sfx_oneshot( u8 id, v3f pos, f32 volume ){
+   audio_lock();
+
+   if( id == k_player_walk_soundeffect_splash ){
+      audio_oneshot_3d( &audio_splash, pos, 40.0f, 1.0f );
+   }
+
+   audio_unlock();
 }
 #endif /* PLAYER_DEVICE_WALK_H */