X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=player_replay.c;h=6fea7d91338c5805fe7dae536877fe6c3ab47845;hb=76315944e5a98838163e0aba8601ed3522f0724d;hp=47da357c4ede76fbd3ae0454a69ec649bd5a14ba;hpb=cba8a468e166156dd8cab3358da369b1df76eb8b;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/player_replay.c b/player_replay.c
index 47da357..6fea7d9 100644
--- a/player_replay.c
+++ b/player_replay.c
@@ -2,8 +2,11 @@
 #define PLAYER_REPLAY_C
 
 #include "player_replay.h"
+#include "input.h"
+#include "gui.h"
+#include "freecam.h"
 
-VG_STATIC void replay_clear( replay_buffer *replay ){
+static void replay_clear( replay_buffer *replay ){
    replay->head = NULL;
    replay->tail = NULL;
    replay->cursor_frame = NULL;
@@ -11,46 +14,26 @@ VG_STATIC void replay_clear( replay_buffer *replay ){
    replay->cursor = -99999.9;
 }
 
-replay_gamestate *replay_frame_gamestate( replay_frame *frame ){
+static 
+void * replay_frame_data( replay_frame *frame, enum replay_framedata type ){
    void *baseptr = frame;
-   return baseptr + vg_align8(sizeof(replay_frame));
+   return baseptr + frame->data_table[type][0];
 }
 
-void *replay_gamestate_subsystem_data( replay_gamestate *gs ){
-   void *baseptr = gs;
-   return baseptr + vg_align8(sizeof(replay_gamestate));
-}
+static u16
+replay_frame_calculate_data_offsets( u16 data_table[4][2] ){
+   u32 total = vg_align8( sizeof(replay_frame) );
+   for( u32 i=0; i<4; i++ ){
+      data_table[i][0] = total;
+      total += vg_align8(data_table[i][1]);
 
-u32 replay_frame_gamestate_total_size( u32 subsystem_gamestate_size ){
-   if( subsystem_gamestate_size ){
-      return vg_align8( sizeof(replay_gamestate) ) + 
-             vg_align8( subsystem_gamestate_size );
+      if( total > 0xffff )
+         vg_fatal_error( "Exceeded frame storage capacity\n" );
    }
-   else
-      return 0;
-}
-
-replay_sfx *replay_frame_sfx( replay_frame *frame, u32 index ){
-   void *gs = replay_frame_gamestate( frame );
-   u32 total_size = 
-      replay_frame_gamestate_total_size( frame->subsystem_gamestate_size );
-
-   replay_sfx *array = (gs + total_size);
-   return &array[index];
+   return total;
 }
 
-u32 _replay_frame_size( u32 subsystem_gamestate_size, u32 sfx_count ){
-   return vg_align8( sizeof( replay_frame ) ) + 
-          replay_frame_gamestate_total_size( subsystem_gamestate_size ) +
-          vg_align8( sfx_count * sizeof(replay_sfx) );
-}
-
-u32 replay_frame_size( replay_frame *frame ){
-   return _replay_frame_size( frame->subsystem_gamestate_size, 
-                              frame->sfx_count );
-}
-
-VG_STATIC void replay_tailpop( replay_buffer *replay ){
+static void replay_tailpop( replay_buffer *replay ){
    if( replay->cursor_frame == replay->tail )
       replay->cursor_frame = NULL;
    if( replay->statehead == replay->tail )
@@ -64,21 +47,26 @@ VG_STATIC void replay_tailpop( replay_buffer *replay ){
       replay->head = NULL;
 }
 
-VG_STATIC replay_frame *replay_newframe( replay_buffer *replay, 
-                                         u32 subsystem_gamestate_size, 
-                                         u32 sfx_count ){
-   replay_frame *frame = NULL;
-   if( replay->head ){
-      assert( replay->head );
+static replay_frame *replay_newframe( replay_buffer *replay, 
+                                         u16 animator_size,
+                                         u16 gamestate_size,
+                                         u16 sfx_count ){
+   u16 data_table[4][2];
+   data_table[ k_replay_framedata_animator ][1]  = animator_size;
+   data_table[ k_replay_framedata_gamestate ][1] = gamestate_size;
+   data_table[ k_replay_framedata_sfx ][1] = sfx_count*sizeof(struct net_sfx);
+   data_table[ k_replay_framedata_internal_gamestate ][1] = 0;
+   if( gamestate_size ){
+      data_table[ k_replay_framedata_internal_gamestate ][1] = 
+         sizeof( replay_gamestate );
+   }
 
-      u32 headsize = replay_frame_size( replay->head ),
-          nextpos  = ((void *)replay->head - replay->data) + headsize,
-          nextsize = _replay_frame_size( subsystem_gamestate_size, sfx_count );
+   u32 nextsize = replay_frame_calculate_data_offsets( data_table );
 
-      if( nextsize > replay->size ){
-         vg_error( "Keyframe too big\n" );
-         return NULL;
-      }
+   replay_frame *frame = NULL;
+   if( replay->head ){
+      u32 headsize = replay->head->total_size,
+          nextpos  = ((void *)replay->head - replay->data) + headsize;
 
       if( nextpos + nextsize > replay->size ){
          nextpos = 0;
@@ -92,7 +80,6 @@ VG_STATIC replay_frame *replay_newframe( replay_buffer *replay,
       }
 
 check_again:;
-
       u32 tailpos = (void *)replay->tail - replay->data;
 
       if( tailpos >= nextpos ){
@@ -112,19 +99,34 @@ check_again:;
    else
       frame = replay->data;
 
-   frame->subsystem_gamestate_size = subsystem_gamestate_size;
-   frame->sfx_count = sfx_count;
+   for( u32 i=0; i<4; i++ ){
+      frame->data_table[i][0] = data_table[i][0];
+      frame->data_table[i][1] = data_table[i][1];
+   }
+
+   frame->total_size = nextsize;
    frame->l = replay->head;
    frame->r = NULL;
    replay->head = frame;
    if( !replay->tail ) replay->tail = frame;
-   if( subsystem_gamestate_size ) replay->statehead = frame;
+   if( gamestate_size ) replay->statehead = frame;
 
    return frame;
 }
 
-VG_STATIC void replay_seek( replay_buffer *replay, f64 t ){
-   if( !replay->head ) return;
+static void replay_emit_frame_sounds( replay_frame *frame ){
+   void *baseptr = frame;
+   u16 *inf = frame->data_table[k_replay_framedata_sfx];
+   struct net_sfx *buffer = baseptr + inf[0];
+   u32 count = inf[1] / sizeof(struct net_sfx);
+
+   for( u32 i=0; i<count; i ++ ){
+      net_sfx_play( buffer + i );
+   }
+}
+
+static int replay_seek( replay_buffer *replay, f64 t ){
+   if( !replay->head ) return 0;
    assert( replay->tail );
 
    if( t < replay->tail->time ) t = replay->tail->time;
@@ -141,13 +143,18 @@ VG_STATIC void replay_seek( replay_buffer *replay, f64 t ){
    }
 
    f64 dir = t - replay->cursor;
-   if( dir == 0.0 ) return;
+   if( dir == 0.0 ) return 0;
    dir = vg_signf( dir );
+
    
    u32 i=4096;
    while( i --> 0 ){
-      if( dir < 0.0 )
-         if( t > replay->cursor_frame->time ) break;
+      if( dir < 0.0 ){
+         if( t > replay->cursor_frame->time ) {
+            replay->cursor = t;
+            return 1;
+         }
+      }
 
       replay_frame *next;
       if( dir > 0.0 ) next = replay->cursor_frame->r;
@@ -155,50 +162,57 @@ VG_STATIC void replay_seek( replay_buffer *replay, f64 t ){
 
       if( !next ) break;
 
-      if( dir > 0.0 )
-         if( t < next->time ) break;
+      if( dir > 0.0 ){
+         if( t < next->time ){
+            replay->cursor = t;
+            return 1;
+         }
+      }
+
+      replay_emit_frame_sounds( next );
 
       replay->cursor_frame = next;
       replay->cursor = next->time;
 
-      if( !i ) return;
+      if( !i ) return 1;
    }
 
    replay->cursor = t;
+   return 0;
 }
 
-VG_STATIC replay_frame *replay_find_recent_stateframe( replay_buffer *replay ){
+static replay_frame *replay_find_recent_stateframe( replay_buffer *replay ){
    replay_frame *frame = replay->cursor_frame;
    u32 i=4096;
    while( i --> 0 ){
       if( !frame ) return frame;
-      if( frame->subsystem_gamestate_size ) return frame;
+      if( frame->data_table[ k_replay_framedata_gamestate ][1] ) return frame;
       frame = frame->l;
    }
 
    return NULL;
 }
 
-VG_STATIC f32 replay_subframe_time( replay_buffer *replay ){
+static f32 replay_subframe_time( replay_buffer *replay ){
    replay_frame *frame = replay->cursor_frame;
    if( !frame ) return 0.0f;
    replay_frame *next = frame->r;
    if( next ){
       f64 l = next->time - frame->time,
-          t = (replay->cursor - frame->time) / l;
+          t = (l <= (1.0/128.0))? 0.0: (replay->cursor - frame->time) / l;
       return vg_clampf( t, 0.0f, 1.0f );
    }
    else 
       return 0.0f;
 }
 
-VG_STATIC void replay_get_frame_camera( replay_frame *frame, camera *cam ){
+static void replay_get_frame_camera( replay_frame *frame, camera *cam ){
    cam->fov = frame->cam_fov;
    v3_copy( frame->cam_pos, cam->pos );
    v3_copy( frame->cam_angles, cam->angles );
 }
 
-VG_STATIC void replay_get_camera( replay_buffer *replay, camera *cam ){
+static void replay_get_camera( replay_buffer *replay, camera *cam ){
    cam->nearz = 0.1f;
    cam->farz = 100.0f;
    if( replay->cursor_frame ){
@@ -227,8 +241,8 @@ struct replay_rb{
    v4f q;
 };
 
-VG_STATIC 
-void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
+static void skaterift_record_frame( replay_buffer *replay, 
+                                    int force_gamestate ){
    f64 delta      = 9999999.9,
        statedelta = 9999999.9;
 
@@ -251,8 +265,7 @@ void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
 
    if( !save_frame ) return;
 
-   u32 gamestate_size = 0;
-
+   u16 gamestate_size = 0;
    if( save_state ){
       gamestate_size = (u32 []){ 
          [k_player_subsystem_walk ] = sizeof(struct player_walk_state),
@@ -262,12 +275,22 @@ void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
                                        sizeof(struct replay_rb)
       }[ localplayer.subsystem ];
    }
+
+   u16 animator_size = (u16 []){
+      [k_player_subsystem_walk ] = sizeof(struct player_walk_animator),
+      [k_player_subsystem_drive] = 0,
+      [k_player_subsystem_skate] = sizeof(struct player_skate_animator),
+      [k_player_subsystem_dead ] = sizeof(struct player_dead_animator)
+   }[ localplayer.subsystem ];
    
-   replay_frame *frame = replay_newframe( replay, gamestate_size, 0 );
+   replay_frame *frame = replay_newframe( replay,
+                                          animator_size, gamestate_size, 
+                                          localplayer.local_sfx_buffer_count );
+   frame->system = localplayer.subsystem;
 
    if( save_state ){
-      replay_gamestate *gs = replay_frame_gamestate( frame );
-      gs->system = localplayer.subsystem;
+      replay_gamestate *gs = 
+         replay_frame_data( frame, k_replay_framedata_internal_gamestate );
 
       /* permanent block */
       memcpy( &gs->rb, &localplayer.rb, sizeof(rigidbody) );
@@ -275,13 +298,13 @@ void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
                sizeof(struct player_cam_controller) );
       v3_copy( localplayer.angles, gs->angles );
 
-      void *dst = replay_gamestate_subsystem_data( gs );
+      void *dst = replay_frame_data( frame, k_replay_framedata_gamestate );
 
       /* subsytem/dynamic block */
       if( localplayer.subsystem == k_player_subsystem_walk )
-         memcpy( dst, &localplayer._walk.state, gamestate_size );
+         memcpy( dst, &player_walk.state, gamestate_size );
       else if( localplayer.subsystem == k_player_subsystem_skate )
-         memcpy( dst, &localplayer._skate.state, gamestate_size );
+         memcpy( dst, &player_skate.state, gamestate_size );
       else if( localplayer.subsystem == k_player_subsystem_dead ){
          struct replay_rb *arr = dst;
          for( u32 i=0; i<localplayer.ragdoll.part_count; i ++ ){
@@ -296,39 +319,59 @@ void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
 
    replay->cursor = vg.time;
    replay->cursor_frame = frame;
-
-   player_animation *res = &frame->anim;
-   v3_zero( res->root_co );
-   q_identity( res->root_q );
-   res->type = k_player_animation_type_absolute;
-
-   struct skeleton *sk = &localplayer.playeravatar->sk;
-   skeleton_decompose_mtx_absolute( sk, res->pose );
-
-   memcpy( &frame->board_pose, &localplayer.board_pose, 
-            sizeof(localplayer.board_pose) );
    frame->time = vg.time;
+
+   /* camera */
    v3_copy( localplayer.cam.pos, frame->cam_pos );
-   v3_copy( localplayer.cam.angles, frame->cam_angles );
+   if( localplayer.gate_waiting ){
+      m4x3_mulv( localplayer.gate_waiting->transport, 
+                  frame->cam_pos, frame->cam_pos );
+
+      v3f v0;
+      v3_angles_vector( localplayer.cam.angles, v0 );
+      m3x3_mulv( localplayer.gate_waiting->transport, v0, v0 );
+      v3_angles( v0, frame->cam_angles );
+   }
+   else 
+      v3_copy( localplayer.cam.angles, frame->cam_angles );
+
    frame->cam_fov = localplayer.cam.fov;
+
+   /* animator */
+   void *dst = replay_frame_data( frame, k_replay_framedata_animator );
+
+   if( localplayer.subsystem == k_player_subsystem_walk )
+      memcpy( dst, &player_walk.animator, animator_size );
+   else if( localplayer.subsystem == k_player_subsystem_skate )
+      memcpy( dst, &player_skate.animator, animator_size );
+   else if( localplayer.subsystem == k_player_subsystem_dead ){
+      memcpy( dst, &player_dead.animator, animator_size );
+   }
+
+   /* sound effects */
+   memcpy( replay_frame_data( frame, k_replay_framedata_sfx ),
+           localplayer.local_sfx_buffer,
+           sizeof(struct net_sfx)*localplayer.local_sfx_buffer_count );
+
+   localplayer.local_sfx_buffer_count = 0;
 }
 
-VG_STATIC
+static
 void skaterift_restore_frame( replay_frame *frame ){
-   replay_gamestate *gs = replay_frame_gamestate( frame );
-   void *src = replay_gamestate_subsystem_data( gs );
-
-   /* TODO: Move this to subsystem bindings now that its variable */
-   if( gs->system == k_player_subsystem_walk ){
-      memcpy( &localplayer._walk.state, src,
-              frame->subsystem_gamestate_size );
+   replay_gamestate *gs = 
+      replay_frame_data( frame, k_replay_framedata_internal_gamestate );
+   void *src = replay_frame_data( frame, k_replay_framedata_gamestate );
+   u16 src_size = frame->data_table[ k_replay_framedata_gamestate ][1];
+   assert( src_size );
+
+   if(frame->system == k_player_subsystem_walk ){
+      memcpy( &player_walk.state, src, src_size );
    }
-   else if( gs->system == k_player_subsystem_skate ){
-      memcpy( &localplayer._skate.state, src,
-              frame->subsystem_gamestate_size );
+   else if( frame->system == k_player_subsystem_skate ){
+      memcpy( &player_skate.state, src, src_size );
    }
-   else if( gs->system == k_player_subsystem_dead ){
-      player__dead_transition( &localplayer );
+   else if( frame->system == k_player_subsystem_dead ){
+      player__dead_transition(0);
       struct replay_rb *arr = src;
 
       for( u32 i=0; i<localplayer.ragdoll.part_count; i ++ ){
@@ -345,7 +388,7 @@ void skaterift_restore_frame( replay_frame *frame ){
       }
    }
 
-   localplayer.subsystem = gs->system;
+   localplayer.subsystem = frame->system;
 
    memcpy( &localplayer.rb, &gs->rb, sizeof(rigidbody) );
    v3_copy( gs->angles, localplayer.angles );
@@ -368,11 +411,23 @@ void skaterift_restore_frame( replay_frame *frame ){
    vg.time = frame->time;
 }
 
-VG_STATIC void skaterift_replay_pre_update(void){
-   if( skaterift.activity != k_skaterift_replay ) return;
+static void skaterift_replay_resume(void){
+   replay_frame *prev = replay_find_recent_stateframe(&skaterift.replay);
 
-   f64 speed = vg.time_frame_delta * 1.0;
-   f64 target = skaterift.replay.cursor;
+   if( prev ){
+      skaterift.replay_control = k_replay_control_resume;
+      skaterift.resume_target = prev;
+      skaterift.resume_begin = skaterift.replay.cursor;
+      skaterift.resume_transition = 0.0f;
+   }
+
+   gui_helper_clear();
+}
+
+static void skaterift_replay_update_helpers(void);
+
+static void skaterift_replay_pre_update(void){
+   if( skaterift.activity != k_skaterift_replay ) return;
 
    if( skaterift.replay_control == k_replay_control_resume ){
       if( skaterift.replay.cursor_frame == skaterift.resume_target ||
@@ -386,47 +441,131 @@ VG_STATIC void skaterift_replay_pre_update(void){
          if( skaterift.resume_transition >= 1.0f )
             skaterift_restore_frame( skaterift.resume_target );
          else {
-            target = vg_lerp( skaterift.resume_begin, 
+            f64 target = vg_lerp( skaterift.resume_begin, 
                               skaterift.resume_target->time, 
                               vg_smoothstepf( skaterift.resume_transition ) );
-            replay_seek( &skaterift.replay, target );
+            if( replay_seek( &skaterift.replay, target ) )
+               skaterift.track_velocity = 1.0f;
+            else
+               skaterift.track_velocity = 0.0f;
          }
       }
    }
    else {
-      if( vg_getkey( SDLK_9 ) ){
-         target -= speed;
-         skaterift.replay_control = k_replay_control_scrub;
-         replay_seek( &skaterift.replay, target );
+      if( button_down( k_srbind_replay_play ) )
+         skaterift.replay_control = k_replay_control_play;
+      if( button_down( k_srbind_replay_freecam ) ){
+         skaterift.freecam = skaterift.freecam ^ 0x1;
+
+         if( skaterift.freecam )
+            replay_get_camera( &skaterift.replay, &skaterift.replay_freecam );
+
+         skaterift_replay_update_helpers();
       }
-      if( vg_getkey( SDLK_0 ) ){
-         target += speed;
+
+      f32 target_speed = axis_state( k_sraxis_replay_h ) * 5.0;
+      if( button_press( k_srbind_reset ) )
+         target_speed += -2.0;
+
+      if( fabsf(target_speed) > 0.01f )
          skaterift.replay_control = k_replay_control_scrub;
-         replay_seek( &skaterift.replay, target );
+
+      if( skaterift.replay_control == k_replay_control_play )
+         target_speed = 1.0;
+
+      vg_slewf( &skaterift.track_velocity, target_speed, 
+                18.0f*vg.time_frame_delta );
+
+      if( fabsf( skaterift.track_velocity ) > 0.0001f ){
+         f64 target = skaterift.replay.cursor;
+         target += skaterift.track_velocity * vg.time_frame_delta;
+
+         if( !replay_seek( &skaterift.replay, target ) )
+            skaterift.track_velocity = 0.0f;
       }
 
-      if( vg_getkey( SDLK_7 ) )
-         skaterift.replay_control = k_replay_control_play;
+      if( button_down( k_srbind_mback ) ){
+         if( skaterift.replay.statehead )
+            skaterift_restore_frame( skaterift.replay.statehead );
+         else
+            skaterift.activity = k_skaterift_default;
+         srinput.state = k_input_state_resume;
+         gui_helper_clear();
+      }
 
-      if( skaterift.replay_control == k_replay_control_play ){
-         target += vg.time_frame_delta;
-         replay_seek( &skaterift.replay, target );
+      if( skaterift.freecam ){
+         //freecam_preupdate();
       }
+      else {
+         if( button_down( k_srbind_replay_resume ) ){
+            skaterift_replay_resume();
+         }
+      }
+   }
+}
+
+static void skaterift_replay_update_helpers(void){
+   skaterift.helper_resume->greyed = skaterift.freecam;
 
-      if( vg_getkey( SDLK_8 ) ){
-         replay_frame *prev = replay_find_recent_stateframe(&skaterift.replay);
+   vg_str freecam_text;
+   vg_strnull( &freecam_text, skaterift.helper_freecam->text, 
+               GUI_HELPER_TEXT_LENGTH );
+   vg_strcat( &freecam_text, skaterift.freecam? "exit freecam": "freecam" );
+}
 
-         if( prev ){
-            skaterift.replay_control = k_replay_control_resume;
-            skaterift.resume_target = prev;
-            skaterift.resume_begin = skaterift.replay.cursor;
-            skaterift.resume_transition = 0.0f;
+static void skaterift_replay_post_render(void){
+   if( world_static.active_instance != k_world_purpose_client )
+      return;
+
+   /* capture the current resume frame at the very last point */
+   if( button_down( k_srbind_reset ) ){
+      if( skaterift.activity == k_skaterift_default ){
+         localplayer.rewinded_since_last_gate = 1;
+         skaterift.activity = k_skaterift_replay;
+         skaterift_record_frame( &skaterift.replay, 1 );
+         if( skaterift.replay.head ){
+            skaterift.replay.cursor = skaterift.replay.head->time;
+            skaterift.replay.cursor_frame = skaterift.replay.head;
          }
+         skaterift.replay_control = k_replay_control_scrub;
+
+         gui_helper_clear();
+         vg_str text;
+
+         if( gui_new_helper( input_axis_list[k_sraxis_replay_h], &text ) )
+            vg_strcat( &text, "scrub" );
+
+         if( (skaterift.helper_resume = gui_new_helper( 
+                     input_button_list[k_srbind_replay_resume], &text )) )
+            vg_strcat( &text, "resume" );
+         
+         if( gui_new_helper( input_button_list[k_srbind_replay_play], &text ))
+            vg_strcat( &text, "playback" );
+
+         skaterift.helper_freecam = gui_new_helper(
+               input_button_list[k_srbind_replay_freecam], &text );
+
+         skaterift_replay_update_helpers();
       }
    }
 }
 
-VG_STATIC void skaterift_replay_debug_info(void){
+#if 0
+static void skaterift_get_replay_camera( camera *cam ){
+   if( skaterift.freecam ){
+      cam->nearz = 0.1f;
+      cam->farz = 100.0f;
+      v3_copy( skaterift.replay_freecam.pos, cam->pos );
+      v3_copy( skaterift.replay_freecam.angles, cam->angles );
+      cam->fov = skaterift.replay_freecam.fov;
+   }
+   else{
+      replay_get_camera( &skaterift.replay, &skaterift.cam );
+   }
+}
+#endif
+
+static void skaterift_replay_debug_info(void){
    player__debugtext( 2, "replay info" );
 
    replay_buffer *replay = &skaterift.replay;
@@ -439,10 +578,15 @@ VG_STATIC void skaterift_replay_debug_info(void){
    player__debugtext( 1, "head @%u | tail @%u\n", head, tail );
 
    if( replay->statehead ){
+      for( u32 i=0; i<4; i++ ){
+         player__debugtext( 1, "[%u]: [%hu, %hu]\n", i,
+              replay->statehead->data_table[i][0],
+              replay->statehead->data_table[i][1] );
+      }
       u32 state = (void *)replay->statehead - replay->data;
       player__debugtext( 1, "gs @%u\n", state );
-      player__debugtext( 1, "gamestate_size: %u\n", 
-                         replay->statehead->subsystem_gamestate_size );
+      player__debugtext( 1, "gamestate_size: %hu\n", 
+           replay->statehead->data_table[k_replay_framedata_gamestate][1] );
    }
    else
       player__debugtext( 1, "gs @NULL\n" );
@@ -458,7 +602,7 @@ VG_STATIC void skaterift_replay_debug_info(void){
    player__debugtext( 1, "cursor: %.2fs / %.2fs\n", cur, len );
 }
 
-VG_STATIC void skaterift_replay_imgui(void){
+static void skaterift_replay_imgui(void){
    if( skaterift.activity != k_skaterift_replay ) return;
 
    replay_buffer *replay = &skaterift.replay;
@@ -472,9 +616,9 @@ VG_STATIC void skaterift_replay_imgui(void){
    char buffer[ 128 ];
 
    /* mainbar */
-   ui_px height = 20,
+   ui_px height = 32,
          cwidth = 2;
-   ui_rect bar = { 0, vg.window_y - height, vg.window_x, height };
+   ui_rect bar = { 0, 0, vg.window_x, height };
    ui_fill( bar, ui_colour( k_ui_bg ) );
 
    /* cursor frame block */
@@ -482,21 +626,21 @@ VG_STATIC void skaterift_replay_imgui(void){
       if( replay->cursor_frame->r ){
          f64 l = (replay->cursor_frame->r->time-replay->cursor_frame->time)/len,
              s = (replay->cursor_frame->time - start) / len;
-         ui_rect box = { s*(f64)vg.window_x, bar[1]-2, 
+         ui_rect box = { s*(f64)vg.window_x, 0, 
                          VG_MAX(4,(ui_px)(l*vg.window_x)), bar[3]+2 };
          ui_fill( box, ui_colour( k_ui_bg+4 ) );
       }
    }
 
    /* cursor */
-   ui_rect cusor = { cur * (f64)vg.window_x - (cwidth/2), bar[1], 
+   ui_rect cusor = { cur * (f64)vg.window_x - (cwidth/2), 0, 
                      cwidth, bar[3] };
    ui_fill( cusor, ui_colour( k_ui_bg+7 ) );
 
    /* latest state marker */
    if( replay->statehead ){
       f64 t = (replay->statehead->time - start) / len;
-      ui_rect tag = { t*(f64)vg.window_x, bar[1]-8, 2, bar[3]+8 };
+      ui_rect tag = { t*(f64)vg.window_x, 0, 2, bar[3]+8 };
       ui_fill( tag, ui_colour( k_ui_green+k_ui_brighter ) );
    }
 
@@ -504,7 +648,7 @@ VG_STATIC void skaterift_replay_imgui(void){
    replay_frame *prev = replay_find_recent_stateframe( replay );
    if( prev ){
       f64 t = (prev->time - start) / len;
-      ui_rect tag = { t*(f64)vg.window_x, bar[1]-8, 2, bar[3]+8 };
+      ui_rect tag = { t*(f64)vg.window_x, 0, 2, bar[3]+8 };
       ui_fill( tag, ui_colour( k_ui_yellow+k_ui_brighter ) );
    }