add freecam
[carveJwlIkooP6JGAAIwe30JlM.git] / player_replay.c
1 #ifndef PLAYER_REPLAY_C
2 #define PLAYER_REPLAY_C
3
4 #include "player_replay.h"
5 #include "input.h"
6 #include "gui.h"
7
8 VG_STATIC void replay_clear( replay_buffer *replay ){
9 replay->head = NULL;
10 replay->tail = NULL;
11 replay->cursor_frame = NULL;
12 replay->statehead = NULL;
13 replay->cursor = -99999.9;
14 }
15
16 replay_gamestate *replay_frame_gamestate( replay_frame *frame ){
17 void *baseptr = frame;
18 return baseptr + vg_align8(sizeof(replay_frame));
19 }
20
21 void *replay_gamestate_subsystem_data( replay_gamestate *gs ){
22 void *baseptr = gs;
23 return baseptr + vg_align8(sizeof(replay_gamestate));
24 }
25
26 u32 replay_frame_gamestate_total_size( u32 subsystem_gamestate_size ){
27 if( subsystem_gamestate_size ){
28 return vg_align8( sizeof(replay_gamestate) ) +
29 vg_align8( subsystem_gamestate_size );
30 }
31 else
32 return 0;
33 }
34
35 replay_sfx *replay_frame_sfx( replay_frame *frame, u32 index ){
36 void *gs = replay_frame_gamestate( frame );
37 u32 total_size =
38 replay_frame_gamestate_total_size( frame->subsystem_gamestate_size );
39
40 replay_sfx *array = (gs + total_size);
41 return &array[index];
42 }
43
44 u32 _replay_frame_size( u32 subsystem_gamestate_size, u32 sfx_count ){
45 return vg_align8( sizeof( replay_frame ) ) +
46 replay_frame_gamestate_total_size( subsystem_gamestate_size ) +
47 vg_align8( sfx_count * sizeof(replay_sfx) );
48 }
49
50 u32 replay_frame_size( replay_frame *frame ){
51 return _replay_frame_size( frame->subsystem_gamestate_size,
52 frame->sfx_count );
53 }
54
55 VG_STATIC void replay_tailpop( replay_buffer *replay ){
56 if( replay->cursor_frame == replay->tail )
57 replay->cursor_frame = NULL;
58 if( replay->statehead == replay->tail )
59 replay->statehead = NULL;
60
61 replay->tail = replay->tail->r;
62
63 if( replay->tail )
64 replay->tail->l = NULL;
65 else
66 replay->head = NULL;
67 }
68
69 VG_STATIC replay_frame *replay_newframe( replay_buffer *replay,
70 u32 subsystem_gamestate_size,
71 u32 sfx_count ){
72 replay_frame *frame = NULL;
73 if( replay->head ){
74 assert( replay->head );
75
76 u32 headsize = replay_frame_size( replay->head ),
77 nextpos = ((void *)replay->head - replay->data) + headsize,
78 nextsize = _replay_frame_size( subsystem_gamestate_size, sfx_count );
79
80 if( nextsize > replay->size ){
81 vg_error( "Keyframe too big\n" );
82 return NULL;
83 }
84
85 if( nextpos + nextsize > replay->size ){
86 nextpos = 0;
87
88 /* maintain contiguity */
89 while( replay->tail ){
90 if( (void *)replay->tail - replay->data )
91 replay_tailpop( replay );
92 else break;
93 }
94 }
95
96 check_again:;
97
98 u32 tailpos = (void *)replay->tail - replay->data;
99
100 if( tailpos >= nextpos ){
101 if( nextpos + nextsize > tailpos ){
102 replay_tailpop( replay );
103
104 if( replay->tail )
105 goto check_again;
106 }
107 }
108
109 frame = replay->data + nextpos;
110
111 if( replay->head )
112 replay->head->r = frame;
113 }
114 else
115 frame = replay->data;
116
117 frame->subsystem_gamestate_size = subsystem_gamestate_size;
118 frame->sfx_count = sfx_count;
119 frame->l = replay->head;
120 frame->r = NULL;
121 replay->head = frame;
122 if( !replay->tail ) replay->tail = frame;
123 if( subsystem_gamestate_size ) replay->statehead = frame;
124
125 return frame;
126 }
127
128 VG_STATIC void replay_seek( replay_buffer *replay, f64 t ){
129 if( !replay->head ) return;
130 assert( replay->tail );
131
132 if( t < replay->tail->time ) t = replay->tail->time;
133 if( t > replay->head->time ) t = replay->head->time;
134
135 if( !replay->cursor_frame ) {
136 replay->cursor = replay->head->time;
137 replay->cursor_frame = replay->head;
138
139 if( fabs(replay->head->time-t) > fabs(replay->tail->time-t) ){
140 replay->cursor = replay->tail->time;
141 replay->cursor_frame = replay->tail;
142 }
143 }
144
145 f64 dir = t - replay->cursor;
146 if( dir == 0.0 ) return;
147 dir = vg_signf( dir );
148
149 u32 i=4096;
150 while( i --> 0 ){
151 if( dir < 0.0 )
152 if( t > replay->cursor_frame->time ) break;
153
154 replay_frame *next;
155 if( dir > 0.0 ) next = replay->cursor_frame->r;
156 else next = replay->cursor_frame->l;
157
158 if( !next ) break;
159
160 if( dir > 0.0 )
161 if( t < next->time ) break;
162
163 replay->cursor_frame = next;
164 replay->cursor = next->time;
165
166 if( !i ) return;
167 }
168
169 replay->cursor = t;
170 }
171
172 VG_STATIC replay_frame *replay_find_recent_stateframe( replay_buffer *replay ){
173 replay_frame *frame = replay->cursor_frame;
174 u32 i=4096;
175 while( i --> 0 ){
176 if( !frame ) return frame;
177 if( frame->subsystem_gamestate_size ) return frame;
178 frame = frame->l;
179 }
180
181 return NULL;
182 }
183
184 VG_STATIC f32 replay_subframe_time( replay_buffer *replay ){
185 replay_frame *frame = replay->cursor_frame;
186 if( !frame ) return 0.0f;
187 replay_frame *next = frame->r;
188 if( next ){
189 f64 l = next->time - frame->time,
190 t = (replay->cursor - frame->time) / l;
191 return vg_clampf( t, 0.0f, 1.0f );
192 }
193 else
194 return 0.0f;
195 }
196
197 VG_STATIC void replay_get_frame_camera( replay_frame *frame, camera *cam ){
198 cam->fov = frame->cam_fov;
199 v3_copy( frame->cam_pos, cam->pos );
200 v3_copy( frame->cam_angles, cam->angles );
201 }
202
203 VG_STATIC void replay_get_camera( replay_buffer *replay, camera *cam ){
204 cam->nearz = 0.1f;
205 cam->farz = 100.0f;
206 if( replay->cursor_frame ){
207 replay_frame *next = replay->cursor_frame->r;
208
209 if( next ){
210 camera temp;
211
212 replay_get_frame_camera( replay->cursor_frame, cam );
213 replay_get_frame_camera( next, &temp );
214 camera_lerp( cam, &temp, replay_subframe_time( replay ), cam );
215 }
216 else {
217 replay_get_frame_camera( replay->cursor_frame, cam );
218 }
219 }
220 else {
221 v3_zero( cam->pos );
222 v3_zero( cam->angles );
223 cam->fov = 90.0f;
224 }
225 }
226
227 struct replay_rb{
228 v3f co, v, w;
229 v4f q;
230 };
231
232 VG_STATIC
233 void skaterift_record_frame( replay_buffer *replay, int force_gamestate ){
234 f64 delta = 9999999.9,
235 statedelta = 9999999.9;
236
237 if( replay->head )
238 delta = vg.time - replay->head->time;
239
240 if( replay->statehead )
241 statedelta = vg.time - replay->statehead->time;
242
243 const f64 k_replay_rate = 1.0/30.0,
244 k_gamestate_rate = 0.5;
245
246 int save_frame = 0,
247 save_state = 0;
248
249 if( force_gamestate ) save_state = 1;
250 if( statedelta > k_gamestate_rate ) save_state = 1;
251 if( delta > k_replay_rate ) save_frame = 1;
252 if( save_state ) save_frame = 1;
253
254 if( !save_frame ) return;
255
256 u32 gamestate_size = 0;
257
258 if( save_state ){
259 gamestate_size = (u32 []){
260 [k_player_subsystem_walk ] = sizeof(struct player_walk_state),
261 [k_player_subsystem_drive] = 0,
262 [k_player_subsystem_skate] = sizeof(struct player_skate_state),
263 [k_player_subsystem_dead ] = localplayer.ragdoll.part_count *
264 sizeof(struct replay_rb)
265 }[ localplayer.subsystem ];
266 }
267
268 replay_frame *frame = replay_newframe( replay, gamestate_size, 0 );
269
270 if( save_state ){
271 replay_gamestate *gs = replay_frame_gamestate( frame );
272 gs->system = localplayer.subsystem;
273
274 /* permanent block */
275 memcpy( &gs->rb, &localplayer.rb, sizeof(rigidbody) );
276 memcpy( &gs->cam_control, &localplayer.cam_control,
277 sizeof(struct player_cam_controller) );
278 v3_copy( localplayer.angles, gs->angles );
279
280 void *dst = replay_gamestate_subsystem_data( gs );
281
282 /* subsytem/dynamic block */
283 if( localplayer.subsystem == k_player_subsystem_walk )
284 memcpy( dst, &localplayer._walk.state, gamestate_size );
285 else if( localplayer.subsystem == k_player_subsystem_skate )
286 memcpy( dst, &localplayer._skate.state, gamestate_size );
287 else if( localplayer.subsystem == k_player_subsystem_dead ){
288 struct replay_rb *arr = dst;
289 for( u32 i=0; i<localplayer.ragdoll.part_count; i ++ ){
290 rigidbody *rb = &localplayer.ragdoll.parts[i].obj.rb;
291 v3_copy( rb->co, arr[i].co );
292 v3_copy( rb->w, arr[i].w );
293 v3_copy( rb->v, arr[i].v );
294 v4_copy( rb->q, arr[i].q );
295 }
296 }
297 }
298
299 replay->cursor = vg.time;
300 replay->cursor_frame = frame;
301
302 player_animation *res = &frame->anim;
303 v3_zero( res->root_co );
304 q_identity( res->root_q );
305 res->type = k_player_animation_type_absolute;
306
307 struct skeleton *sk = &localplayer.playeravatar->sk;
308
309 memcpy( &frame->board_pose, &localplayer.board_pose,
310 sizeof(localplayer.board_pose) );
311 frame->time = vg.time;
312 v3_copy( localplayer.cam.pos, frame->cam_pos );
313
314 if( localplayer.gate_waiting ){
315 m4x3_mulv( localplayer.gate_waiting->transport,
316 frame->cam_pos, frame->cam_pos );
317
318 for( u32 i=1; i<sk->bone_count; i++ ){
319 struct skeleton_bone *sb = &sk->bones[i];
320 mdl_keyframe *kf = &res->pose[i-1];
321 m4x3f mtx;
322 m4x3_mul( localplayer.gate_waiting->transport, sk->final_mtx[i], mtx );
323 m4x3_decompose( mtx, kf->co, kf->q, kf->s );
324 }
325 }
326 else
327 skeleton_decompose_mtx_absolute( sk, res->pose );
328
329 v3_copy( localplayer.cam.angles, frame->cam_angles );
330 frame->cam_fov = localplayer.cam.fov;
331 }
332
333 VG_STATIC
334 void skaterift_restore_frame( replay_frame *frame ){
335 replay_gamestate *gs = replay_frame_gamestate( frame );
336 void *src = replay_gamestate_subsystem_data( gs );
337
338 /* TODO: Move this to subsystem bindings now that its variable */
339 if( gs->system == k_player_subsystem_walk ){
340 memcpy( &localplayer._walk.state, src,
341 frame->subsystem_gamestate_size );
342 }
343 else if( gs->system == k_player_subsystem_skate ){
344 memcpy( &localplayer._skate.state, src,
345 frame->subsystem_gamestate_size );
346 }
347 else if( gs->system == k_player_subsystem_dead ){
348 player__dead_transition( &localplayer );
349 struct replay_rb *arr = src;
350
351 for( u32 i=0; i<localplayer.ragdoll.part_count; i ++ ){
352 struct ragdoll_part *part = &localplayer.ragdoll.parts[i];
353 rigidbody *rb = &part->obj.rb;
354
355 v3_copy( arr[i].co, rb->co );
356 v3_copy( arr[i].w, rb->w );
357 v3_copy( arr[i].v, rb->v );
358 v4_copy( arr[i].q, rb->q );
359
360 v3_copy( arr[i].co, part->prev_co );
361 v4_copy( arr[i].q, part->prev_q );
362 }
363 }
364
365 localplayer.subsystem = gs->system;
366
367 memcpy( &localplayer.rb, &gs->rb, sizeof(rigidbody) );
368 v3_copy( gs->angles, localplayer.angles );
369
370 v3_copy( frame->cam_pos, localplayer.cam.pos );
371 v3_copy( frame->cam_angles, localplayer.cam.angles );
372 localplayer.cam.fov = frame->cam_fov;
373
374 memcpy( &localplayer.cam_control, &gs->cam_control,
375 sizeof(struct player_cam_controller) );
376
377 /* chop end off replay */
378 frame->r = NULL;
379 skaterift.replay.statehead = frame;
380 skaterift.replay.head = frame;
381 skaterift.replay.cursor_frame = frame;
382 skaterift.replay.cursor = frame->time;
383 skaterift.replay_control = k_replay_control_scrub;
384 skaterift.activity = k_skaterift_default;
385 vg.time = frame->time;
386 }
387
388 VG_STATIC void skaterift_replay_resume(void){
389 replay_frame *prev = replay_find_recent_stateframe(&skaterift.replay);
390
391 if( prev ){
392 skaterift.replay_control = k_replay_control_resume;
393 skaterift.resume_target = prev;
394 skaterift.resume_begin = skaterift.replay.cursor;
395 skaterift.resume_transition = 0.0f;
396 }
397 }
398
399 VG_STATIC void skaterift_replay_pre_update(void){
400 if( skaterift.activity != k_skaterift_replay ) return;
401
402 if( skaterift.replay_control == k_replay_control_resume ){
403 if( skaterift.replay.cursor_frame == skaterift.resume_target ||
404 skaterift.replay.cursor_frame == NULL ){
405 skaterift_restore_frame( skaterift.resume_target );
406 }
407 else {
408 vg_slewf( &skaterift.resume_transition, 1.0f,
409 vg.time_frame_delta * (1.0f/1.0f) );
410
411 if( skaterift.resume_transition >= 1.0f )
412 skaterift_restore_frame( skaterift.resume_target );
413 else {
414 f64 target = vg_lerp( skaterift.resume_begin,
415 skaterift.resume_target->time,
416 vg_smoothstepf( skaterift.resume_transition ) );
417 replay_seek( &skaterift.replay, target );
418 }
419 }
420 }
421 else {
422 if( button_down( k_srbind_replay_play ) )
423 skaterift.replay_control = k_replay_control_play;
424 if( button_down( k_srbind_replay_freecam ) ){
425 skaterift.freecam = skaterift.freecam ^ 0x1;
426
427 if( skaterift.freecam )
428 replay_get_camera( &skaterift.replay, &skaterift.replay_freecam );
429 }
430
431 f32 target_speed = axis_state( k_sraxis_replay_h ) * 5.0;
432 if( button_press( k_srbind_reset ) )
433 target_speed += -2.0;
434
435 if( fabsf(target_speed) > 0.01f )
436 skaterift.replay_control = k_replay_control_scrub;
437
438 if( skaterift.replay_control == k_replay_control_play )
439 target_speed = 1.0;
440
441 vg_slewf( &skaterift.track_velocity, target_speed,
442 18.0f*vg.time_frame_delta );
443
444 if( fabsf( skaterift.track_velocity ) > 0.0001f ){
445 f64 target = skaterift.replay.cursor;
446 target += skaterift.track_velocity * vg.time_frame_delta;
447
448 replay_seek( &skaterift.replay, target );
449 }
450
451 if( button_down( k_srbind_mback ) ){
452 if( skaterift.replay.statehead )
453 skaterift_restore_frame( skaterift.replay.statehead );
454 else
455 skaterift.activity = k_skaterift_default;
456 srinput.enabled = 0;
457 }
458
459 gui_helper_action( button_display_string(k_srbind_replay_play), "play" );
460 gui_helper_action( axis_display_string(k_sraxis_replay_h), "scrub" );
461 if( skaterift.freecam ){
462 gui_helper_action( button_display_string(k_srbind_replay_freecam),
463 "exit freecam" );
464
465 camera *cam = &skaterift.replay_freecam;
466 v3f angles;
467 v3_copy( cam->angles, angles );
468 player_look( angles, 1.0f );
469
470 f32 decay = vg_maxf(0.0f,1.0f-vg.time_frame_delta*10.0f);
471
472 v3f d;
473 v3_sub( angles, cam->angles, d );
474 v3_muladds( skaterift.freecam_w, d, 20.0f, skaterift.freecam_w );
475 v3_muls( skaterift.freecam_w, decay, skaterift.freecam_w );
476 v3_muladds( cam->angles, skaterift.freecam_w, vg.time_frame_delta,
477 cam->angles );
478 cam->angles[1] = vg_clampf( cam->angles[1], -VG_PIf*0.5f,VG_PIf*0.5f);
479
480 camera_update_transform( cam );
481
482 v3f lookdir = { 0.0f, 0.0f, -1.0f },
483 sidedir = { 1.0f, 0.0f, 0.0f };
484
485 m3x3f mtx;
486 m3x3_mul( cam->transform, localplayer.basis, mtx );
487
488 m3x3_mulv( mtx, lookdir, lookdir );
489 m3x3_mulv( mtx, sidedir, sidedir );
490
491 v2f input;
492 joystick_state( k_srjoystick_steer, input );
493 v2_muls( input, vg.time_frame_delta*6.0f*20.0f, input );
494
495 v3_muladds( skaterift.freecam_v, lookdir, -input[1],
496 skaterift.freecam_v );
497 v3_muladds( skaterift.freecam_v, sidedir, input[0],
498 skaterift.freecam_v );
499
500 v3_muls( skaterift.freecam_v, decay, skaterift.freecam_v );
501 v3_muladds( cam->pos,
502 skaterift.freecam_v, vg.time_frame_delta, cam->pos );
503 }
504 else {
505 gui_helper_action( button_display_string(k_srbind_replay_resume),
506 "resume" );
507 gui_helper_action( button_display_string(k_srbind_replay_freecam),
508 "enter freecam" );
509
510 if( button_down( k_srbind_replay_resume ) ){
511 skaterift_replay_resume();
512 }
513 }
514 }
515 }
516
517 VG_STATIC void skaterift_get_replay_camera( camera *cam ){
518 if( skaterift.freecam ){
519 cam->nearz = 0.1f;
520 cam->farz = 100.0f;
521 v3_copy( skaterift.replay_freecam.pos, cam->pos );
522 v3_copy( skaterift.replay_freecam.angles, cam->angles );
523 cam->fov = skaterift.replay_freecam.fov;
524 }
525 else{
526 replay_get_camera( &skaterift.replay, &skaterift.cam );
527 }
528 }
529
530 VG_STATIC void skaterift_replay_debug_info(void){
531 player__debugtext( 2, "replay info" );
532
533 replay_buffer *replay = &skaterift.replay;
534
535 u32 head = 0,
536 tail = 0;
537 if( replay->tail ) tail = (void *)replay->tail - replay->data;
538 if( replay->head ) head = (void *)replay->head - replay->data;
539
540 player__debugtext( 1, "head @%u | tail @%u\n", head, tail );
541
542 if( replay->statehead ){
543 u32 state = (void *)replay->statehead - replay->data;
544 player__debugtext( 1, "gs @%u\n", state );
545 player__debugtext( 1, "gamestate_size: %u\n",
546 replay->statehead->subsystem_gamestate_size );
547 }
548 else
549 player__debugtext( 1, "gs @NULL\n" );
550
551 f64 start = replay->cursor,
552 end = replay->cursor;
553 if( replay->tail ) start = replay->tail->time;
554 if( replay->head ) end = replay->head->time;
555
556 f64 cur = replay->cursor - start,
557 len = end - start;
558
559 player__debugtext( 1, "cursor: %.2fs / %.2fs\n", cur, len );
560 }
561
562 VG_STATIC void skaterift_replay_imgui(void){
563 if( skaterift.activity != k_skaterift_replay ) return;
564
565 replay_buffer *replay = &skaterift.replay;
566 f64 start = replay->cursor,
567 end = replay->cursor;
568 if( replay->tail ) start = replay->tail->time;
569 if( replay->head ) end = replay->head->time;
570 f64 len = end - start,
571 cur = (replay->cursor - start) / len;
572
573 char buffer[ 128 ];
574
575 /* mainbar */
576 ui_px height = 32,
577 cwidth = 2;
578 ui_rect bar = { 0, 0, vg.window_x, height };
579 ui_fill( bar, ui_colour( k_ui_bg ) );
580
581 /* cursor frame block */
582 if( replay->cursor_frame ){
583 if( replay->cursor_frame->r ){
584 f64 l = (replay->cursor_frame->r->time-replay->cursor_frame->time)/len,
585 s = (replay->cursor_frame->time - start) / len;
586 ui_rect box = { s*(f64)vg.window_x, 0,
587 VG_MAX(4,(ui_px)(l*vg.window_x)), bar[3]+2 };
588 ui_fill( box, ui_colour( k_ui_bg+4 ) );
589 }
590 }
591
592 /* cursor */
593 ui_rect cusor = { cur * (f64)vg.window_x - (cwidth/2), 0,
594 cwidth, bar[3] };
595 ui_fill( cusor, ui_colour( k_ui_bg+7 ) );
596
597 /* latest state marker */
598 if( replay->statehead ){
599 f64 t = (replay->statehead->time - start) / len;
600 ui_rect tag = { t*(f64)vg.window_x, 0, 2, bar[3]+8 };
601 ui_fill( tag, ui_colour( k_ui_green+k_ui_brighter ) );
602 }
603
604 /* previous state marker */
605 replay_frame *prev = replay_find_recent_stateframe( replay );
606 if( prev ){
607 f64 t = (prev->time - start) / len;
608 ui_rect tag = { t*(f64)vg.window_x, 0, 2, bar[3]+8 };
609 ui_fill( tag, ui_colour( k_ui_yellow+k_ui_brighter ) );
610 }
611
612 cusor[1] -= height;
613 cusor[2] = 200;
614 snprintf( buffer, 128, "-%.2fs\n", (end-replay->cursor) );
615 ui_text( cusor, buffer, 1, k_ui_align_middle_left, 0 );
616
617 snprintf( buffer, 128, "-%.2fs\n", len );
618 ui_text( bar, buffer, 1, k_ui_align_middle_left, 0 );
619 ui_text( bar, "0s", 1, k_ui_align_middle_right, 0 );
620
621 #if 0
622 char buf[256];
623 snprintf( buf, 256, "scrub: %s\nresume: %s\nplay: %s\n",
624 axis_display_string( k_sraxis_replay_h ),
625 button_display_string( k_srbind_replay_resume ),
626 button_display_string( k_srbind_replay_play ) );
627
628 ui_rect info = { 0, vg.window_y-bar[3]-128, 256, 128 };
629 ui_text( info, buf, 2,0,0 );
630 #endif
631 }
632
633 #endif /* PLAYER_REPLAY_C */