X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=player_glide.c;h=6b5930b9c2f26bed2d4d17ad1f28d3d902303831;hb=HEAD;hp=f7339373869924086ceb02272a80b1af9a01da89;hpb=5f6a4f9df6c8accc89f1920bfe9ace3cbac4c4b6;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/player_glide.c b/player_glide.c
deleted file mode 100644
index f733937..0000000
--- a/player_glide.c
+++ /dev/null
@@ -1,707 +0,0 @@
-#include "player_glide.h"
-#include "vg/vg_rigidbody.h"
-#include "scene_rigidbody.h"
-#include "shaders/model_board_view.h"
-#include "shaders/model_entity.h"
-#include "input.h"
-#include "skaterift.h"
-
-#include "player_dead.h"
-#include "player_skate.h"
-
-trail_system trails_glider[] = {
-   {
-      .width = 0.035f,
-      .lifetime = 5.0f,
-      .min_dist = 0.5f
-   },
-   {
-      .width = 0.035f,
-      .lifetime = 5.0f,
-      .min_dist = 0.5f
-   },
-};
-
-struct player_glide player_glide =
-{
-   .parts = {
-      {
-         .co    = { 1.0f, 0.5f, -1.0f },
-         .euler = { VG_TAUf*0.25f,  VG_TAUf*0.125f, 0.0f },
-         .shape = k_rb_shape_capsule,
-         .inf   = { .h = 2.82842712475f, .r = 0.25f },
-      },
-      {
-         .co    = { -1.0f, 0.5f, -1.0f },
-         .euler = { VG_TAUf*0.25f, -VG_TAUf*0.125f, 0.0f },
-         .shape = k_rb_shape_capsule,
-         .inf   = { .h = 2.82842712475f, .r = 0.25f },
-      },
-      {
-         .co    = {  0.0f, 0.5f, 1.0f },
-         .euler = { VG_TAUf*0.25f, VG_TAUf*0.25f, 0.0f },
-         .shape = k_rb_shape_capsule,
-         .inf   = { .h = 6.0f, .r = 0.25f },
-      },
-      {
-         .co    = {  0.0f, -0.5f, 0.0f },
-         .euler = { VG_TAUf*0.25f, VG_TAUf*0.25f, 0.0f },
-         .shape = k_rb_shape_capsule,
-         .inf   = { .h = 2.0f, .r = 0.25f },
-         .is_damage = 1,
-      },
-   }
-};
-
-struct player_subsystem_interface player_subsystem_glide = 
-{
-   .pre_update = player_glide_pre_update,
-   .update = player_glide_update,
-   .post_update = player_glide_post_update,
-   .animate = player_glide_animate,
-   .pose = player_glide_pose,
-   .post_animate = player_glide_post_animate,
-   .network_animator_exchange = player_glide_animator_exchange,
-   .im_gui = player_glide_im_gui,
-   .bind = player_glide_bind,
-
-   .animator_data = &player_glide.animator,
-   .animator_size = sizeof(player_glide.animator),
-   .name = "Glide"
-};
-
-static f32 k_glide_steer = 2.0f,
-           k_glide_cl = 0.04f,
-           k_glide_cs = 0.02f,
-           k_glide_drag = 0.0001f,
-           k_glide_slip_yaw = 0.1f,
-           k_glide_lift_pitch = 0.0f,
-           k_glide_wing_orient = -0.1f,
-           k_glide_balance = 1.0f;
-
-static i32 k_glide_pause = 0;
-
-void player_glide_pre_update(void)
-{
-   if( button_down(k_srbind_use) ){
-      localplayer.subsystem = k_player_subsystem_skate;
-      localplayer.glider_orphan = 1;
-
-      player_skate.state.activity = k_skate_activity_air;
-      player_skate.state.activity_prev = k_skate_activity_air;
-
-      q_mulv( localplayer.rb.q, (v3f){0.0f,1.0f,0.0f}, player_skate.state.cog );
-      v3_add( player_skate.state.cog, localplayer.rb.co, 
-              player_skate.state.cog );
-      v3_copy( localplayer.rb.v, player_skate.state.cog_v );
-
-      player__begin_holdout( (v3f){0.0f,0.0f,0.0f} );
-      player__skate_reset_animator();
-      player__skate_clear_mechanics();
-      v3_copy( (v3f){0.0f,0.0f,0.0f}, player_skate.state.trick_euler );
-
-      player__approximate_best_trajectory();
-   }
-}
-
-static void massless_accel( rigidbody *rb, v3f delta, v3f impulse ){
-   /* linear */
-   v3_muladds( rb->v, impulse, vg.time_fixed_delta, rb->v );
-   
-   /* Angular velocity */
-   v3f wa;
-   v3_cross( delta, impulse, wa );
-   v3_muladds( rb->w, wa, vg.time_fixed_delta, rb->w );
-}
-
-static void calculate_lift( v3f vl, f32 aoa_bias, 
-                            v3f axis, v3f back, f32 power,
-                            v3f out_force ){
-   v3f up;
-   v3_cross( back, axis, up );
-
-   v3f wind;
-   v3_muladds( vl, axis, -v3_dot(axis,vl), wind );
-   
-   f32 windv2 = v3_length2(wind),
-       aoa    = atan2f( v3_dot( up, wind ), v3_dot( back, wind ) ) + aoa_bias,
-       cl     = aoa / VG_PIf, /* TODO: make it a curve */
-       L      = windv2 * cl * power;
-
-   v3f lift_dir;
-   v3_normalize( wind );
-   v3_cross( wind, axis, lift_dir );
-
-   /* this is where induced drag (from the flappy things) would go */
-   
-   v3_muls( lift_dir, L, out_force );
-}
-
-static void calculate_drag( v3f vl, f32 cd, v3f out_force ){
-   f32 v2 = v3_length2( vl );
-   v3f dir;
-   v3_copy( vl, dir );
-   v3_normalize( dir );
-   v3_muls( vl, -cd*v2, out_force );
-}
-
-/*
- * Returns true if the bottom sphere is hit 
- */
-bool glider_physics( v2f steer )
-{
-   rigidbody *rb = &player_glide.rb;
-
-   /* lift */
-   v3f vl, wl;
-   m3x3_mulv( rb->to_local, rb->v, vl );
-   m3x3_mulv( rb->to_local, rb->w, wl );
-   
-   v3f F, Flift, Fslip, Fdrag, FslipW, FliftW;
-
-   calculate_lift( vl, steer[1]*k_glide_steer, 
-                  (v3f){1,0,0},
-                  (v3f){0,sinf(k_glide_wing_orient),cosf(k_glide_wing_orient)},
-                  k_glide_cl, Flift );
-   v3_copy( Flift, player_glide.info_lift );
-   v3_cross( (v3f){0,0,0}, Flift, FliftW );
-   
-   calculate_lift( vl, 0.0f,
-                  (v3f){0,1,0},(v3f){0,0,1},
-                  k_glide_cs, Fslip );
-   v3_copy( Fslip, player_glide.info_slip );
-   v3_cross( (v3f){0,k_glide_lift_pitch,k_glide_slip_yaw}, Fslip, FslipW );
-
-   calculate_drag( vl, k_glide_drag, Fdrag );
-   v3_copy( Fdrag, player_glide.info_drag );
-
-   v3f balance = {0.0f,-k_glide_balance,0.0f};
-   m3x3_mulv( rb->to_local, balance, balance );
-
-   v3f Fw = {
-       steer[1]*k_glide_steer - balance[2],
-       0.0f,
-      -steer[0]*k_glide_steer + balance[0],
-   };
-
-   if( player_glide.ticker ){
-      player_glide.ticker --;
-      return 0;
-   }
-   player_glide.ticker += k_glide_pause;
-
-   /* apply forces */
-   v3_add( Flift, Fslip, F );
-   v3_add( F, Fdrag, F );
-
-   m3x3_mulv( rb->to_world, F, F );
-   v3_muladds( rb->v, F, vg.time_fixed_delta, rb->v );
-
-   v3_add( Fw, FslipW, Fw );
-   v3_add( Fw, FliftW, Fw );
-   m3x3_mulv( rb->to_world, Fw, Fw );
-   v3_muladds( rb->w, Fw, vg.time_fixed_delta, rb->w );
-
-
-   /* 
-    * collisions & constraints
-    */
-   world_instance *world = world_current_instance();
-   rb_solver_reset();
-
-   bool bottom_hit = 0;
-
-   rigidbody _null = {0};
-   _null.inv_mass = 0.0f;
-   m3x3_zero( _null.iI );
-   for( u32 i=0; i < vg_list_size(player_glide.parts); i ++ ){
-      m4x3f mmdl;
-      m4x3_mul( rb->to_world, player_glide.parts[i].mdl, mmdl );
-
-      if( player_glide.parts[i].shape == k_rb_shape_capsule ){
-         vg_line_capsule( mmdl,
-                          player_glide.parts[i].inf.r,
-                          player_glide.parts[i].inf.h,
-                          VG__BLACK );
-      }
-      else if( player_glide.parts[i].shape == k_rb_shape_sphere ){
-         vg_line_sphere( mmdl, player_glide.parts[i].r, 0 );
-      }
-
-      if( rb_global_has_space() ){
-         rb_ct *buf = rb_global_buffer();
-
-         u32 l = 0;
-         
-         if( player_glide.parts[i].shape == k_rb_shape_capsule ){
-            l = rb_capsule__scene( mmdl, &player_glide.parts[i].inf,
-                                   NULL, world->geo_bh, buf, 
-                                   k_material_flag_ghosts );
-         }
-         else if( player_glide.parts[i].shape == k_rb_shape_sphere ){
-            l = rb_sphere__scene( mmdl, player_glide.parts[i].r,
-                                  NULL, world->geo_bh, buf,
-                                  k_material_flag_ghosts );
-         }
-
-         if( player_glide.parts[i].is_damage && l ){
-            bottom_hit = 1;
-         }
-
-         for( u32 j=0; j<l; j ++ ){
-            buf[j].rba = rb;
-            buf[j].rbb = &_null;
-         }
-
-         rb_contact_count += l;
-      }
-   }
-
-   rb_presolve_contacts( rb_contact_buffer, 
-                         vg.time_fixed_delta, rb_contact_count );
-   for( u32 i=0; i<10; i ++ )
-      rb_solve_contacts( rb_contact_buffer, rb_contact_count );
-   
-   rb_iter( rb );
-   rb_update_matrices( rb );
-
-   return bottom_hit;
-}
-
-void player_glide_update(void)
-{
-   v2f steer;
-   joystick_state( k_srjoystick_steer, steer );
-
-   if( glider_physics( steer ) ){
-      vg_info( "player fell off due to glider hitting ground\n" );
-      player__dead_transition( k_player_die_type_generic );
-      localplayer.glider_orphan = 1;
-   }
-}
-
-void player_glide_post_update(void)
-{
-   v3_copy( player_glide.rb.co, localplayer.rb.co );
-   v4_copy( player_glide.rb.q, localplayer.rb.q );
-   v3_copy( player_glide.rb.v, localplayer.rb.v );
-   v3_copy( player_glide.rb.w, localplayer.rb.w );
-   rb_update_matrices( &localplayer.rb );
-}
-
-void player_glide_animate(void)
-{
-   struct player_glide *g = &player_glide;
-   struct player_glide_animator *animator = &g->animator;
-   rb_extrapolate( &localplayer.rb, animator->root_co, animator->root_q );
-}
-
-void player_glide_pose( void *_animator, player_pose *pose )
-{
-   struct skeleton *sk = &localplayer.skeleton;
-   struct player_glide_animator *animator = _animator;
-   pose->type = k_player_pose_type_ik;
-   pose->board.lean = 0.0f;
-
-   skeleton_sample_anim( sk, player_glide.anim_glide, 0.0f, pose->keyframes );
-
-   v3f temp;
-   q_mulv( animator->root_q, (v3f){0,-0.5f,0}, temp );
-   v3_add( animator->root_co, temp, pose->root_co );
-
-   v4_copy( animator->root_q, pose->root_q );
-}
-
-void player_glide_post_animate(void)
-{
-   if( localplayer.cam_control.camera_mode == k_cam_firstperson )
-      localplayer.cam_velocity_influence = 0.0f;
-   else
-      localplayer.cam_velocity_influence = 0.0f;
-
-   v3f fwd;
-   v3_muls( localplayer.rb.to_world[2], -1.0f, fwd );
-   v3_angles( fwd, localplayer.angles );
-
-   localplayer.cam_dist = 2.0f + v3_length( localplayer.rb.v )*0.2f;
-}
-
-void player_glide_animator_exchange( bitpack_ctx *ctx, void *data )
-{
-   struct player_glide_animator *animator = data;
-
-   bitpack_qv3f( ctx, 24, -1024.0f, 1024.0f, animator->root_co );
-   bitpack_qquat( ctx, animator->root_q );
-}
-
-void player_glide_remote_animator_exchange( bitpack_ctx *ctx, void *data )
-{
-   struct remote_glider_animator *animator = data;
-
-   bitpack_qv3f( ctx, 24, -1024.0f, 1024.0f, animator->root_co );
-   bitpack_qf32( ctx, 8, 0.0f, 1.0f, &animator->s );
-   bitpack_qquat( ctx, animator->root_q );
-}
-
-void player_glide_im_gui(void)
-{
-   player__debugtext( 1, "Nothing here" );
-   player__debugtext( 1, " lift: %.2f %.2f %.2f", 
-                           player_glide.info_lift[0],
-                           player_glide.info_lift[1],
-                           player_glide.info_lift[2] );
-   player__debugtext( 1, " slip: %.2f %.2f %.2f", 
-                           player_glide.info_slip[0],
-                           player_glide.info_slip[1],
-                           player_glide.info_slip[2] );
-   player__debugtext( 1, " drag: %.2f %.2f %.2f", 
-                           player_glide.info_drag[0],
-                           player_glide.info_drag[1],
-                           player_glide.info_drag[2] );
-}
-
-void player_glide_equip_glider(void)
-{
-   if( !localplayer.have_glider ){
-      localplayer.have_glider = 1;
-      localplayer.glider_orphan = 0;
-      player_glide.t = -1.0f;
-   }
-}
-
-static int ccmd_player_glider_spawn( int argc, const char *argv[] ){
-   if( vg_console.cheats ){
-      player_glide_equip_glider();
-   }
-   else {
-      vg_error( "Can't spawn without cheats enabled.\n" );
-   }
-   return 0;
-}
-
-void player_glide_bind(void)
-{
-   u32 mask = VG_VAR_CHEAT|VG_VAR_PERSISTENT;
-   VG_VAR_F32( k_glide_steer, flags=mask );
-   VG_VAR_F32( k_glide_cl, flags=mask );
-   VG_VAR_F32( k_glide_cs, flags=mask );
-   VG_VAR_F32( k_glide_drag, flags=mask );
-   VG_VAR_F32( k_glide_slip_yaw, flags=mask );
-   VG_VAR_F32( k_glide_lift_pitch, flags=mask );
-   VG_VAR_I32( k_glide_pause, flags=mask );
-   VG_VAR_F32( k_glide_balance, flags=mask );
-   VG_VAR_F32( k_glide_wing_orient, flags=mask );
-
-   vg_console_reg_cmd( "spawn_glider", ccmd_player_glider_spawn, NULL );
-
-   f32 mass = 0.0f,k_density = 8.0f;
-   m3x3f I;
-   m3x3_zero( I );
-
-   for( u32 i=0; i<vg_list_size(player_glide.parts); i ++ ){
-      /* create part transform matrix */
-      v4f qp, qy, qr, q;
-      q_axis_angle( qp, (v3f){1,0,0}, player_glide.parts[i].euler[0] );
-      q_axis_angle( qy, (v3f){0,1,0}, player_glide.parts[i].euler[1] );
-      q_axis_angle( qr, (v3f){0,0,1}, player_glide.parts[i].euler[2] );
-
-      q_mul( qr, qy, q );
-      q_mul( q, qp, q );
-
-      q_m3x3( q, player_glide.parts[i].mdl );
-      v3_copy( player_glide.parts[i].co, player_glide.parts[i].mdl[3] );
-
-      /* add it to inertia model */
-
-      if( player_glide.parts[i].shape == k_rb_shape_capsule ){
-         f32 r  = player_glide.parts[i].inf.r,
-             h  = player_glide.parts[i].inf.h,
-             pv = vg_capsule_volume( r, h ),
-             pm = pv * k_density;
-
-         mass += pm;
-
-         m3x3f pI;
-         vg_capsule_inertia( r, h, pm, pI );
-         vg_rotate_inertia( pI, player_glide.parts[i].mdl );
-         vg_translate_inertia( pI, pm, player_glide.parts[i].co );
-         m3x3_add( I, pI, I );
-      }
-      else if( player_glide.parts[i].shape == k_rb_shape_sphere ){
-         f32 r  = player_glide.parts[i].r,
-             pv = vg_sphere_volume( r ),
-             pm = pv * k_density;
-
-         mass += pm;
-         m3x3f pI;
-         vg_sphere_inertia( r, pm, pI );
-         vg_translate_inertia( pI, pm, player_glide.parts[i].co );
-         m3x3_add( I, pI, I );
-      }
-   }
-
-   /* set inverses */
-   m3x3_inv( I, player_glide.rb.iI );
-   player_glide.rb.inv_mass = 1.0f / mass;
-
-   /* resources */
-   struct skeleton *sk = &localplayer.skeleton;
-   player_glide.anim_glide = skeleton_get_anim( sk, "glide_pose" );
-
-   void *alloc = vg_mem.rtmemory;
-   mdl_context *mdl = &player_glide.glider;
-
-   mdl_open( mdl, "models/glider.mdl", alloc );
-   mdl_load_metadata_block( mdl, alloc );
-
-   vg_linear_clear( vg_mem.scratch );
-
-   u32 count = mdl_arrcount( &mdl->textures );
-   player_glide.glider_textures = 
-      vg_linear_alloc( alloc, vg_align8(sizeof(GLuint)*(count+1))); 
-   player_glide.glider_textures[0] = vg.tex_missing;
-   mdl_async_load_glmesh( mdl, &player_glide.glider_mesh, NULL );
-
-   for( u32 i=0; i<count; i ++ ){
-      vg_linear_clear( vg_mem.scratch );
-      player_glide.glider_textures[i+1] = vg.tex_missing;
-
-      mdl_texture *tex = mdl_arritm( &mdl->textures, i );
-      void *data = vg_linear_alloc( vg_mem.scratch, tex->file.pack_size );
-      mdl_fread_pack_file( mdl, &tex->file, data );
-      vg_tex2d_load_qoi_async( data, tex->file.pack_size, 
-                               VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
-                               &player_glide.glider_textures[i+1] );
-   }
-
-   /* load trail positions */
-   mdl_array_ptr markers;
-   MDL_LOAD_ARRAY( mdl, &markers, ent_marker, vg_mem.scratch );
-
-   for( u32 i=0; i<mdl_arrcount( &markers ); i ++ ){
-      ent_marker *marker = mdl_arritm( &markers, i );
-      v3_copy( marker->transform.co, 
-               player_glide.trail_positions[ player_glide.trail_count ++ ] );
-
-      if( player_glide.trail_count == vg_list_size(trails_glider) )
-         break;
-   }
-
-   mdl_close( mdl );
-
-   /* allocate effects */
-   for( u32 i=0; i<vg_list_size(trails_glider); i ++ ){
-      trail_alloc( &trails_glider[i], 200 );
-   }
-}
-
-void player_glide_transition(void)
-{
-   localplayer.subsystem = k_player_subsystem_glide;
-   localplayer.have_glider = 0;
-   world_static.challenge_target = NULL;
-   world_static.challenge_timer = 0.0f;
-   world_static.focused_entity = 0;
-   world_static.last_use = 0.0;
-   for( u32 i=0; i<vg_list_size(world_static.instances); i++ ){
-      world_instance *instance = &world_static.instances[i];
-      if( instance->status == k_world_status_loaded ){
-         world_routes_clear( instance );
-      }
-   }
-
-   v3_copy( localplayer.rb.co, player_glide.rb.co );
-
-   f32 dir = v3_dot( localplayer.rb.v, localplayer.rb.to_world[2] );
-
-   if( dir > 0.0f ){
-      v4f qyaw;
-      q_axis_angle( qyaw, (v3f){0,1,0}, VG_TAUf*0.5f );
-      q_mul( qyaw, localplayer.rb.q, player_glide.rb.q );
-      q_normalize( player_glide.rb.q );
-   }
-   else 
-      v4_copy( localplayer.rb.q,  player_glide.rb.q );
-
-   v3_copy( localplayer.rb.v,  player_glide.rb.v );
-   v3_copy( localplayer.rb.w,  player_glide.rb.w );
-   rb_update_matrices( &player_glide.rb );
-
-   player__begin_holdout( (v3f){0,0,0} );
-}
-
-void render_glider_model( vg_camera *cam, world_instance *world,
-                          m4x3f mmdl, enum board_shader shader )
-{
-   u32 current_tex = 0xffffffff;
-   glActiveTexture( GL_TEXTURE0 );
-
-   mdl_context *mdl = &player_glide.glider;
-   mesh_bind( &player_glide.glider_mesh );
-
-   for( u32 i=0; i<mdl_arrcount(&mdl->meshs); i ++ ){
-      mdl_mesh *mesh = mdl_arritm( &mdl->meshs, i );
-
-      m4x3f mmmdl;
-      mdl_transform_m4x3( &mesh->transform, mmmdl );
-      m4x3_mul( mmdl, mmmdl, mmmdl );
-
-      if( shader == k_board_shader_player )
-         shader_model_board_view_uMdl( mmmdl );
-      else if( shader == k_board_shader_entity ){
-         m4x4f m4mmmdl;
-         m4x3_expand( mmmdl, m4mmmdl );
-         m4x4_mul( cam->mtx_prev.pv, m4mmmdl, m4mmmdl );
-
-         shader_model_entity_uMdl( mmmdl );
-         shader_model_entity_uPvmPrev( m4mmmdl );
-      }
-
-      for( u32 j=0; j<mesh->submesh_count; j ++ ){
-         mdl_submesh *sm = mdl_arritm( &mdl->submeshs, mesh->submesh_start+j );
-         if( !sm->material_id ) {
-            vg_error( "Invalid material ID 0\n" );
-            continue;
-         }
-
-         mdl_material *mat = mdl_arritm( &mdl->materials, sm->material_id-1 );
-         if( mat->tex_diffuse != current_tex ){
-            glBindTexture( GL_TEXTURE_2D, 
-                  player_glide.glider_textures[ mat->tex_diffuse ] );
-            current_tex = mat->tex_diffuse;
-         }
-
-         mdl_draw_submesh( sm );
-      }
-   }
-}
-
-/*
- * TODO: more flexible way to call
- *      - this depends on the current state, but we need to pass a struct in
- *        that can hold that information instead so we can save it into 
- *        the replay
- */
-void player_glide_render( vg_camera *cam, world_instance *world,
-                          player_pose *pose )
-{
-   if( !((localplayer.subsystem == k_player_subsystem_glide) ||
-         (localplayer.observing_system == k_player_subsystem_glide) ||
-          localplayer.have_glider ||
-          localplayer.glider_orphan) )
-      return;
-
-   shader_model_board_view_use();
-   shader_model_board_view_uTexMain( 0 );
-   shader_model_board_view_uCamera( cam->transform[3] );
-   shader_model_board_view_uPv( cam->mtx.pv );
-
-   shader_model_board_view_uDepthCompare(1);
-   depth_compare_bind(
-      shader_model_board_view_uTexSceneDepth,
-      shader_model_board_view_uInverseRatioDepth,
-      shader_model_board_view_uInverseRatioMain,
-      cam );
-
-   WORLD_BIND_LIGHT_BUFFERS_UB0_TEX234( world, model_board_view );
-
-   mdl_keyframe kf_res;
-   if( localplayer.glider_orphan ){
-      rb_extrapolate( &player_glide.rb, kf_res.co, kf_res.q );
-      v3_fill( kf_res.s, 1.0f );
-
-      v3f temp;
-      q_mulv( kf_res.q, (v3f){0,-0.5f,0}, temp );
-      v3_add( temp, kf_res.co, kf_res.co );
-   }
-   else {
-      f32 target;
-      if( localplayer.subsystem == k_player_subsystem_glide ) target = 1.0f;
-      else target = 0.0f;
-
-      /* TODO: TEMP */
-      if( skaterift.activity != k_skaterift_replay )
-         vg_slewf( &player_glide.t, target, vg.time_frame_delta * 4.0f );
-
-      mdl_keyframe kf_backpack;
-
-      struct skeleton *sk = &localplayer.skeleton;
-      m4x3_mulv( localplayer.final_mtx[localplayer.id_chest ],
-            sk->bones[localplayer.id_chest].co, 
-            kf_backpack.co );
-
-      v4f qyaw, qpitch, qchest, q;
-      q_axis_angle( qyaw,   (v3f){0,1,0}, VG_TAUf*0.25f );
-      q_axis_angle( qpitch, (v3f){1,0,0}, VG_TAUf*0.25f );
-      m3x3_q( localplayer.final_mtx[ localplayer.id_chest ], qchest );
-
-      q_mul( qyaw, qpitch, q );
-      q_mul( qchest, q, kf_backpack.q );
-      q_normalize( kf_backpack.q );
-
-      f32 scale;
-      if( player_glide.t <= 0.0f ){
-         f32 st  = player_glide.t + 1.0f,
-             sst = vg_smoothstepf(st),
-             isst= 1.0f - sst;
-         scale = vg_lerpf( 0.0f, 0.2f, sst );
-
-         v4f qspin;
-         q_axis_angle( qspin, (v3f){0,0,1}, VG_TAUf * isst * 0.5f );
-         q_mul( kf_backpack.q, qspin, kf_backpack.q );
-         kf_backpack.co[1] += isst * 1.0f;
-         v3_muladds( kf_backpack.co, 
-                     localplayer.final_mtx[ localplayer.id_chest ][0],
-                     isst * 0.25f,
-                     kf_backpack.co );
-      }
-      else{
-         scale = vg_lerpf( 0.2f, 1.0f, vg_smoothstepf(player_glide.t) );
-      }
-
-
-      v3_fill( kf_backpack.s, scale );
-
-      v3_copy( pose->root_co, kf_res.co );
-      v4_copy( pose->root_q, kf_res.q );
-      v3_fill( kf_res.s, scale );
-
-      f32 blend = vg_smoothstepf( vg_maxf( 0, player_glide.t ) );
-      keyframe_lerp( &kf_backpack, &kf_res, blend, &kf_res );
-   }
-      
-   m4x3f mmdl;
-   q_m3x3( kf_res.q, mmdl );
-   m3x3_scale( mmdl, kf_res.s );
-   v3_copy( kf_res.co, mmdl[3] );
-
-   render_glider_model( cam, world, mmdl, k_board_shader_player );
-
-   /* totally FUCKED */
-   v4_copy( kf_res.q, player_glide.remote_animator.root_q );
-   v3_copy( kf_res.co, player_glide.remote_animator.root_co );
-   player_glide.remote_animator.s = kf_res.s[0];
-}
-
-void player_glide_render_effects( vg_camera *cam )
-{
-   v3f co, temp;
-   v4f q;
-   rb_extrapolate( &player_glide.rb, co, q );
-   q_mulv( q, (v3f){0,-0.5f,0}, temp );
-   v3_add( temp, co, co );
-
-   f32 alpha = vg_maxf( (fabsf(player_glide.info_lift[2])-1.0f), 0.0f ) /18.0f;
-
-   for( u32 i=0; i<player_glide.trail_count; i ++ ){
-      v3f vvert;
-      q_mulv( q, player_glide.trail_positions[i], vvert );
-      v3_add( co, vvert, vvert );
-      
-      trail_system_update( &trails_glider[i], vg.time_delta, vvert,
-                           localplayer.rb.to_world[1], alpha );
-                           
-      trail_system_prerender( &trails_glider[i] );
-      trail_system_render( &trails_glider[i], &skaterift.cam );
-   }
-}