+VG_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;
+ return vg_clampf( t, 0.0f, 1.0f );
+ }
+ else
+ return 0.0f;
+}
+
+VG_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 ){
+ cam->nearz = 0.1f;
+ cam->farz = 100.0f;
+ if( replay->cursor_frame ){
+ replay_frame *next = replay->cursor_frame->r;
+
+ if( next ){
+ camera temp;
+
+ replay_get_frame_camera( replay->cursor_frame, cam );
+ replay_get_frame_camera( next, &temp );
+ camera_lerp( cam, &temp, replay_subframe_time( replay ), cam );
+ }
+ else {
+ replay_get_frame_camera( replay->cursor_frame, cam );
+ }
+ }
+ else {
+ v3_zero( cam->pos );
+ v3_zero( cam->angles );
+ cam->fov = 90.0f;
+ }
+}
+
+struct replay_rb{
+ v3f co, v, w;
+ v4f q;
+};
+
+VG_STATIC
+void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
+ f64 delta = 9999999.9,
+ statedelta = 9999999.9;
+
+ if( replay->head )
+ delta = vg.time - replay->head->time;
+
+ if( replay->statehead )
+ statedelta = vg.time - replay->statehead->time;
+
+ const f64 k_replay_rate = 1.0/30.0,
+ k_gamestate_rate = 0.5;
+
+ int save_frame = 0,
+ save_state = 0;
+
+ if( force_gamestate ) save_state = 1;
+ if( statedelta > k_gamestate_rate ) save_state = 1;
+ if( delta > k_replay_rate ) save_frame = 1;
+ if( save_state ) save_frame = 1;
+
+ if( !save_frame ) return;
+
+ u16 gamestate_size = 0;
+ if( save_state ){
+ gamestate_size = (u32 []){
+ [k_player_subsystem_walk ] = sizeof(struct player_walk_state),
+ [k_player_subsystem_drive] = 0,
+ [k_player_subsystem_skate] = sizeof(struct player_skate_state),
+ [k_player_subsystem_dead ] = localplayer.ragdoll.part_count *
+ 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,
+ animator_size, gamestate_size, 0 );
+ frame->system = localplayer.subsystem;
+
+ if( save_state ){
+ replay_gamestate *gs =
+ replay_frame_data( frame, k_replay_framedata_internal_gamestate );
+
+ /* permanent block */
+ memcpy( &gs->rb, &localplayer.rb, sizeof(rigidbody) );
+ memcpy( &gs->cam_control, &localplayer.cam_control,
+ sizeof(struct player_cam_controller) );
+ v3_copy( localplayer.angles, gs->angles );
+
+ 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 );
+ else if( localplayer.subsystem == k_player_subsystem_skate )
+ memcpy( dst, &localplayer._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 ++ ){
+ rigidbody *rb = &localplayer.ragdoll.parts[i].obj.rb;
+ v3_copy( rb->co, arr[i].co );
+ v3_copy( rb->w, arr[i].w );
+ v3_copy( rb->v, arr[i].v );
+ v4_copy( rb->q, arr[i].q );
+ }
+ }
+ }
+
+ replay->cursor = vg.time;
+ replay->cursor_frame = frame;
+ frame->time = vg.time;
+
+ /* camera */
+ v3_copy( localplayer.cam.pos, frame->cam_pos );
+ if( localplayer.gate_waiting ){
+ m4x3_mulv( localplayer.gate_waiting->transport,
+ frame->cam_pos, frame->cam_pos );
+ }
+ 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, &localplayer._walk.animator, animator_size );
+ else if( localplayer.subsystem == k_player_subsystem_skate )
+ memcpy( dst, &localplayer._skate.animator, animator_size );
+ else if( localplayer.subsystem == k_player_subsystem_dead ){
+ memcpy( dst, &localplayer._dead.animator, animator_size );
+ }
+}
+
+VG_STATIC
+void skaterift_restore_frame( replay_frame *frame ){
+ 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( &localplayer._walk.state, src, src_size );
+ }
+ else if( frame->system == k_player_subsystem_skate ){
+ memcpy( &localplayer._skate.state, src, src_size );
+ }
+ else if( frame->system == k_player_subsystem_dead ){
+ player__dead_transition( &localplayer );
+ struct replay_rb *arr = src;
+
+ for( u32 i=0; i<localplayer.ragdoll.part_count; i ++ ){
+ struct ragdoll_part *part = &localplayer.ragdoll.parts[i];
+ rigidbody *rb = &part->obj.rb;
+
+ v3_copy( arr[i].co, rb->co );
+ v3_copy( arr[i].w, rb->w );
+ v3_copy( arr[i].v, rb->v );
+ v4_copy( arr[i].q, rb->q );
+
+ v3_copy( arr[i].co, part->prev_co );
+ v4_copy( arr[i].q, part->prev_q );
+ }
+ }
+
+ localplayer.subsystem = frame->system;
+
+ memcpy( &localplayer.rb, &gs->rb, sizeof(rigidbody) );
+ v3_copy( gs->angles, localplayer.angles );
+
+ v3_copy( frame->cam_pos, localplayer.cam.pos );
+ v3_copy( frame->cam_angles, localplayer.cam.angles );
+ localplayer.cam.fov = frame->cam_fov;
+
+ memcpy( &localplayer.cam_control, &gs->cam_control,
+ sizeof(struct player_cam_controller) );
+
+ /* chop end off replay */
+ frame->r = NULL;
+ skaterift.replay.statehead = frame;
+ skaterift.replay.head = frame;
+ skaterift.replay.cursor_frame = frame;
+ skaterift.replay.cursor = frame->time;
+ skaterift.replay_control = k_replay_control_scrub;
+ skaterift.activity = k_skaterift_default;
+ vg.time = frame->time;
+}
+
+VG_STATIC void skaterift_replay_resume(void){
+ replay_frame *prev = replay_find_recent_stateframe(&skaterift.replay);
+
+ if( prev ){
+ skaterift.replay_control = k_replay_control_resume;
+ skaterift.resume_target = prev;
+ skaterift.resume_begin = skaterift.replay.cursor;
+ skaterift.resume_transition = 0.0f;
+ }
+}
+
+VG_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 ||
+ skaterift.replay.cursor_frame == NULL ){
+ skaterift_restore_frame( skaterift.resume_target );
+ }
+ else {
+ vg_slewf( &skaterift.resume_transition, 1.0f,
+ vg.time_frame_delta * (1.0f/1.0f) );
+
+ if( skaterift.resume_transition >= 1.0f )
+ skaterift_restore_frame( skaterift.resume_target );
+ else {
+ f64 target = vg_lerp( skaterift.resume_begin,
+ skaterift.resume_target->time,
+ vg_smoothstepf( skaterift.resume_transition ) );
+ replay_seek( &skaterift.replay, target );
+ }
+ }
+ }
+ else {
+ 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 );
+ }
+
+ 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;
+
+ 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;
+
+ replay_seek( &skaterift.replay, target );
+ }
+
+ if( button_down( k_srbind_mback ) ){
+ if( skaterift.replay.statehead )
+ skaterift_restore_frame( skaterift.replay.statehead );
+ else
+ skaterift.activity = k_skaterift_default;
+ srinput.enabled = 0;
+ }
+
+ gui_helper_action( button_display_string(k_srbind_replay_play), "play" );
+ gui_helper_action( axis_display_string(k_sraxis_replay_h), "scrub" );
+ if( skaterift.freecam ){
+ gui_helper_action( button_display_string(k_srbind_replay_freecam),
+ "exit freecam" );
+
+ camera *cam = &skaterift.replay_freecam;
+ v3f angles;
+ v3_copy( cam->angles, angles );
+ player_look( angles, 1.0f );
+
+ f32 decay = vg_maxf(0.0f,1.0f-vg.time_frame_delta*10.0f);
+
+ v3f d;
+ v3_sub( angles, cam->angles, d );
+ v3_muladds( skaterift.freecam_w, d, 20.0f, skaterift.freecam_w );
+ v3_muls( skaterift.freecam_w, decay, skaterift.freecam_w );
+ v3_muladds( cam->angles, skaterift.freecam_w, vg.time_frame_delta,
+ cam->angles );
+ cam->angles[1] = vg_clampf( cam->angles[1], -VG_PIf*0.5f,VG_PIf*0.5f);
+
+ camera_update_transform( cam );
+
+ v3f lookdir = { 0.0f, 0.0f, -1.0f },
+ sidedir = { 1.0f, 0.0f, 0.0f };
+
+ m3x3f mtx;
+ m3x3_mul( cam->transform, localplayer.basis, mtx );
+
+ m3x3_mulv( mtx, lookdir, lookdir );
+ m3x3_mulv( mtx, sidedir, sidedir );
+
+ v2f input;
+ joystick_state( k_srjoystick_steer, input );
+ v2_muls( input, vg.time_frame_delta*6.0f*20.0f, input );
+
+ v3_muladds( skaterift.freecam_v, lookdir, -input[1],
+ skaterift.freecam_v );
+ v3_muladds( skaterift.freecam_v, sidedir, input[0],
+ skaterift.freecam_v );
+
+ v3_muls( skaterift.freecam_v, decay, skaterift.freecam_v );
+ v3_muladds( cam->pos,
+ skaterift.freecam_v, vg.time_frame_delta, cam->pos );
+ }
+ else {
+ gui_helper_action( button_display_string(k_srbind_replay_resume),
+ "resume" );
+ gui_helper_action( button_display_string(k_srbind_replay_freecam),
+ "enter freecam" );
+
+ if( button_down( k_srbind_replay_resume ) ){
+ skaterift_replay_resume();
+ }
+ }
+ }
+}
+
+VG_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 );
+ }
+}
+
+VG_STATIC void skaterift_replay_debug_info(void){