X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=player.c;h=483df660638629a2cef7de9952095b28e9fbc91f;hb=eb203257efcfe324217de9e733cc6c1371b99de6;hp=d2e8d6f4a671b10926d0770b06896c3736cf06db;hpb=8f83be5a31728cd6bf95020e729367cc44308763;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/player.c b/player.c
index d2e8d6f..483df66 100644
--- a/player.c
+++ b/player.c
@@ -100,6 +100,12 @@ void player__create( player_instance *inst )
    q_identity( inst->rb.q );
    m4x3_identity( inst->rb.to_world );
    m4x3_identity( inst->rb.to_local );
+
+   inst->rewind_length = 0;
+   inst->rewind_buffer = 
+      vg_linear_alloc( vg_mem.rtmemory, 
+                       sizeof(struct rewind_frame) * PLAYER_REWIND_FRAMES );
+
 }
 
 /* 
@@ -135,11 +141,77 @@ void player__bind( player_instance *player )
  * Gameloop events
  * ----------------------------------------------------------------------------
  */
+
+VG_STATIC void player_save_rewind_frame( player_instance *player )
+{
+   if( player->rewind_length < PLAYER_REWIND_FRAMES ){
+      struct rewind_frame *fr = 
+         &player->rewind_buffer[ player->rewind_length ++ ];
+
+      v2_copy( player->cam.angles, fr->ang );
+      v3_copy( player->cam.pos, fr->pos );
+
+      if( player->rewind_length >= 2 ){
+         player->rewind_total_length += 
+            v3_dist( player->rewind_buffer[player->rewind_length-1].pos,
+                     player->rewind_buffer[player->rewind_length-2].pos );
+      }
+   }
+}
+
 PLAYER_API
 void player__pre_update( player_instance *player )
 {
-   if( vg_input_button_down( player->input_camera ) )
-   {
+   if( player->rewinding ){
+      return;
+   }
+
+   if( vg_input_button_down( player->input_reset ) ){
+      double delta = world_global.time - world_global.last_use;
+
+      if( (delta <= RESET_MAX_TIME) && (world_global.last_use != 0.0) ){
+         player->rewinding = 1;
+         player->rewind_sound_wait = 1;
+         player->rewind_time = (double)player->rewind_length - 0.0001;
+         player_save_rewind_frame( player );
+
+         audio_lock();
+         audio_oneshot( &audio_rewind[0], 1.0f, 0.0f );
+         audio_unlock();
+
+         /* based on testing. DONT CHANGE!
+          * 
+          *    time taken: y = (x^(4/5)) * 74.5
+          *    inverse   : x = (2/149)^(4/5) * y^(4/5)
+          */
+
+         float constant = powf( 2.0f/149.0f, 4.0f/5.0f ),
+               curve    = powf( player->rewind_total_length, 4.0f/5.0f );
+         
+         player->rewind_predicted_time = constant * curve;
+         player->rewind_start = vg.time;
+         player->subsystem = player->subsystem_gate;
+         player->rb = player->rb_gate_storage;
+         v3_copy( player->angles_storage, player->angles );
+
+         if( _player_restore[ player->subsystem ] )
+            _player_restore[ player->subsystem ]( player );
+      }
+      else{
+         if( player->subsystem == k_player_subsystem_dead ){
+            player->subsystem = k_player_subsystem_walk;
+            //reset_player( 0, NULL );
+         }
+         else{
+            /* cant do that */
+            audio_lock();
+            audio_oneshot( &audio_rewind[4], 1.0f, 0.0f );
+            audio_unlock();
+         }
+      }
+   }
+
+   if( vg_input_button_down( player->input_camera ) ){
       if( player->camera_mode == k_cam_firstperson )
          player->camera_mode = k_cam_thirdperson;
       else
@@ -153,6 +225,9 @@ void player__pre_update( player_instance *player )
 PLAYER_API
 void player__update( player_instance *player )
 {
+   if( player->rewinding )
+      return;
+
    if( _player_update[ player->subsystem ] )
       _player_update[ player->subsystem ]( player );
 }
@@ -160,8 +235,20 @@ void player__update( player_instance *player )
 PLAYER_API
 void player__post_update( player_instance *player )
 {
+   if( player->rewinding )
+      return;
+
    if( _player_post_update[ player->subsystem ] )
       _player_post_update[ player->subsystem ]( player );
+
+   if((player->subsystem != k_player_subsystem_dead) && !player->gate_waiting){
+      player->rewind_accum += vg.frame_delta;
+
+      if( player->rewind_accum > 0.25f ){
+         player->rewind_accum -= 0.25f;
+         player_save_rewind_frame( player );
+      }
+   }
 }
 
 VG_STATIC void player_apply_transport_to_cam( m4x3f transport )
@@ -220,14 +307,28 @@ void player__pass_gate( player_instance *player, ent_gate *gate )
    q_m3x3( player->qbasis, player->basis );
    m3x3_transpose( player->basis, player->invbasis );
 
+   player->subsystem_gate = player->subsystem;
+   player->rb_gate_storage = player->rb;
+   v3_copy( player->angles, player->angles_storage );
+   player->rewind_length = 0;
+   player->rewind_total_length = 0.0f;
+   player->rewind_gate = gate;
+   player->rewind_accum = 0.0f;
+
+   m4x3_mulv( gate->transport, player->cam.pos, player->cam.pos );
+   player_save_rewind_frame( player );
+
    if( gate->type == k_gate_type_nonlocal )
       world_global.active_world = gate->target;
+
+   audio_lock();
+   audio_oneshot( &audio_gate_pass, 1.0f, 0.0f );
+   audio_unlock();
 }
 
 VG_STATIC void player__pre_render( player_instance *player )
 {
-   if( _player_animate[ player->subsystem ] )
-   {
+   if( _player_animate[ player->subsystem ] ){
       player_animation res;
       _player_animate[ player->subsystem ]( player, &res );
 
@@ -262,6 +363,104 @@ VG_STATIC void player__pre_render( player_instance *player )
    m4x3_mulv( av->sk.final_mtx[ av->id_board ], vp0, TEMP_BOARD_0 );
    m4x3_mulv( av->sk.final_mtx[ av->id_board ], vp1, TEMP_BOARD_1 );
 
+   if( player->rewinding ){
+      if( player->rewind_time <= 0.0f ){
+         double taken = vg.time - player->rewind_start;
+         vg_success( "Rewind took (rt, pt, tl): %f, %f, %f\n", 
+                           taken, player->rewind_predicted_time,
+                           player->rewind_total_length );
+
+         player->rewinding = 0;
+         player->rewind_length = 1;
+         player->rewind_total_length = 0.0f;
+         player->rewind_accum = 0.0f;
+         world_global.sky_target_rate = 1.0;
+      }
+      else{
+         world_global.sky_target_rate = -100.0;
+
+         float budget         = vg.time_delta,
+               overall_length = player->rewind_length;
+
+#if 0
+         world_routes_rollback_time( player.rewind_time / overall_length );
+#endif
+
+         for( int i=0; (i<10)&&(player->rewind_time>0.0f)&&(budget>0.0f); i++ ){
+            /* Interpolate frames */
+            int i0 = floorf( player->rewind_time ),
+                i1 = VG_MIN( i0+1, player->rewind_length-1 );
+            
+            struct rewind_frame *fr =  &player->rewind_buffer[i0],
+                                *fr1 = &player->rewind_buffer[i1];
+
+            float dist = vg_maxf( v3_dist( fr->pos, fr1->pos ), 0.001f ),
+                  subl = vg_fractf( player->rewind_time ) + 0.001f,
+
+                  sramp= 3.0f-(1.0f/(0.4f+0.4f*player->rewind_time)),
+                  speed = sramp*28.0f + 0.5f*player->rewind_time,
+                  mod  = speed * (budget / dist),
+
+                  advl = vg_minf( mod, subl ),
+                  advt = (advl / mod) * budget;
+            
+            player->dist_accum += speed * advt;
+            player->rewind_time -= advl;
+            budget -= advt;
+         }
+
+         player->rewind_time = vg_maxf( 0.0f, player->rewind_time );
+
+         float current_time = vg.time - player->rewind_start,
+               remaining    = player->rewind_predicted_time - current_time;
+
+         if( player->rewind_sound_wait ){
+            if( player->rewind_predicted_time >= 6.5f ){
+               if( remaining <= 6.5f ){
+                  audio_lock();
+                  audio_oneshot( &audio_rewind[3], 1.0f, 0.0f );
+                  audio_unlock();
+                  player->rewind_sound_wait = 0;
+               }
+            }
+            else if( player->rewind_predicted_time >= 2.5f ){
+               if( remaining <= 2.5f ){
+                  audio_lock();
+                  audio_oneshot( &audio_rewind[2], 1.0f, 0.0f );
+                  audio_unlock();
+                  player->rewind_sound_wait = 0;
+               }
+            }
+            else if( player->rewind_predicted_time >= 1.5f ){
+               if( remaining <= 1.5f ){
+                  audio_lock();
+                  audio_oneshot( &audio_rewind[1], 1.0f, 0.0f );
+                  audio_unlock();
+                  player->rewind_sound_wait = 0;
+               }
+            }
+         }
+         
+         int i0 = floorf( player->rewind_time ),
+             i1 = VG_MIN( i0+1, player->rewind_length-1 );
+         
+         struct rewind_frame *fr =  &player->rewind_buffer[i0],
+                             *fr1 = &player->rewind_buffer[i1];
+         
+         float sub = vg_fractf(player->rewind_time);
+
+         v3_lerp( fr->pos, fr1->pos, sub, player->cam_override_pos );
+         player->cam_override_angles[0] = 
+            vg_alerpf( fr->ang[0], fr1->ang[0], sub );
+         player->cam_override_angles[1] = 
+            vg_lerpf ( fr->ang[1], fr1->ang[1], sub );
+
+         float blend = player->rewind_time * 0.25f;
+         player->cam_override_strength = vg_clampf( blend, 0.0f, 1.0f );
+      }
+   }
+   else player->cam_override_strength = 0.0f;
+
    player__cam_iterate( player );
 }