player_common.c

   1 #ifndef PLAYER_COMMON_C
   2 #define PLAYER_COMMON_C
   3
   4 #include "ent_skateshop.h"
   5 #include "player.h"
   6 #include "conf.h"
   7 #include "input.h"
   8 #include "menu.h"
   9 #include "vg/vg_perlin.h"
  10
  11 VG_STATIC void player_vector_angles( v3f angles, v3f v, float C, float k )
  12 {
  13    float yaw = atan2f( v[0], -v[2] ),
  14        pitch = atan2f
  15                (
  16                    -v[1],
  17                    sqrtf
  18                    (
  19                      v[0]*v[0] + v[2]*v[2]
  20                    )
  21                ) * C + k;
  22
  23    angles[0] = yaw;
  24    angles[1] = pitch;
  25    angles[2] = 0.0f;
  26 }
  27
  28 VG_STATIC float player_get_heading_yaw( player_instance *player )
  29 {
  30    v3f xz;
  31    q_mulv( player->rb.q, (v3f){ 0.0f,0.0f,1.0f }, xz );
  32    m3x3_mulv( player->invbasis, xz, xz );
  33    return atan2f( xz[0], xz[2] );
  34 }
  35
  36 VG_STATIC void player_camera_portal_correction( player_instance *player )
  37 {
  38    if( player->gate_waiting ){
  39       /* construct plane equation for reciever gate */
  40       v4f plane;
  41       q_mulv( player->gate_waiting->q[1], (v3f){0.0f,0.0f,1.0f}, plane );
  42       plane[3] = v3_dot( plane, player->gate_waiting->co[1] );
  43
  44       /* check camera polarity */
  45       if( v3_dot( player->cam.pos, plane ) < plane[3] ) {
  46          vg_success( "Plane cleared\n" );
  47          player_apply_transport_to_cam( player->gate_waiting->transport );
  48          player->gate_waiting = NULL;
  49          player->viewable_world = world_current_instance();
  50       }
  51       else{
  52          /* de-transform camera and player back */
  53          m4x3f inverse;
  54          m4x3_invert_affine( player->gate_waiting->transport, inverse );
  55          m4x3_mulv( inverse, player->cam.pos, player->cam.pos );
  56
  57          struct skeleton *sk = &player->playeravatar->sk;
  58          skeleton_apply_transform( sk, inverse );
  59       }
  60    }
  61 }
  62
  63 VG_STATIC void player__cam_iterate( player_instance *player )
  64 {
  65    struct player_avatar *av = player->playeravatar;
  66
  67    if( player->subsystem == k_player_subsystem_walk ){
  68       v3_copy( (v3f){-0.1f,1.8f,0.0f}, player->fpv_viewpoint );
  69       v3_copy( (v3f){0.0f,0.0f,0.0f}, player->fpv_offset );
  70       v3_copy( (v3f){0.0f,1.4f,0.0f}, player->tpv_offset );
  71    }
  72    else{
  73       v3_copy( (v3f){-0.15f,1.75f,0.0f}, player->fpv_viewpoint );
  74 #if 0
  75       v3_copy( (v3f){-0.35f,0.0f,0.0f}, player->fpv_offset );
  76 #endif
  77       v3_copy( (v3f){0.0f,0.0f,0.0f}, player->fpv_offset );
  78       v3_copy( (v3f){0.0f,1.4f,0.0f}, player->tpv_offset );
  79       v3_add( TEMP_TPV_EXTRA, player->tpv_offset, player->tpv_offset );
  80    }
  81
  82    player->cam_velocity_constant = 0.25f;
  83    player->cam_velocity_coefficient = 0.7f;
  84
  85    /* lerping */
  86
  87    player->cam_velocity_influence_smooth = vg_lerpf(
  88          player->cam_velocity_influence_smooth,
  89          player->cam_velocity_influence,
  90          vg.time_frame_delta * 8.0f );
  91
  92    player->cam_velocity_coefficient_smooth = vg_lerpf(
  93          player->cam_velocity_coefficient_smooth,
  94          player->cam_velocity_coefficient,
  95          vg.time_frame_delta * 8.0f );
  96
  97    player->cam_velocity_constant_smooth = vg_lerpf(
  98          player->cam_velocity_constant_smooth,
  99          player->cam_velocity_constant,
 100          vg.time_frame_delta * 8.0f );
 101
 102    enum camera_mode target_mode = player->camera_mode;
 103
 104    if( player->subsystem == k_player_subsystem_dead )
 105       target_mode = k_cam_thirdperson;
 106
 107    player->camera_type_blend =
 108       vg_lerpf( player->camera_type_blend,
 109                 (target_mode == k_cam_firstperson)? 1.0f: 0.0f,
 110                 5.0f * vg.time_frame_delta );
 111
 112    v3_lerp( player->fpv_viewpoint_smooth, player->fpv_viewpoint,
 113          vg.time_frame_delta * 8.0f, player->fpv_viewpoint_smooth );
 114
 115    v3_lerp( player->fpv_offset_smooth, player->fpv_offset,
 116          vg.time_frame_delta * 8.0f, player->fpv_offset_smooth );
 117
 118    v3_lerp( player->tpv_offset_smooth, player->tpv_offset,
 119          vg.time_frame_delta * 8.0f, player->tpv_offset_smooth );
 120
 121    /* fov -- simple blend */
 122    float fov_skate = vg_lerpf( 97.0f, 135.0f, cl_fov ),
 123          fov_walk  = vg_lerpf( 90.0f, 110.0f, cl_fov );
 124
 125    player->cam.fov = vg_lerpf( fov_walk, fov_skate, player->camera_type_blend );
 126
 127    /*
 128     * first person camera
 129     */
 130
 131    /* position */
 132    v3f fpv_pos, fpv_offset;
 133    m4x3_mulv( av->sk.final_mtx[ av->id_head-1 ],
 134                player->fpv_viewpoint_smooth, fpv_pos );
 135    m3x3_mulv( player->rb.to_world, player->fpv_offset_smooth, fpv_offset );
 136    v3_add( fpv_offset, fpv_pos, fpv_pos );
 137
 138    /* angles */
 139    v3f velocity_angles;
 140    v3_lerp( player->cam_velocity_smooth, player->rb.v, 4.0f*vg.time_frame_delta,
 141             player->cam_velocity_smooth );
 142
 143    v3f velocity_local;
 144    m3x3_mulv( player->invbasis, player->cam_velocity_smooth, velocity_local );
 145    player_vector_angles( velocity_angles, velocity_local,
 146                          player->cam_velocity_coefficient_smooth,
 147                          player->cam_velocity_constant_smooth );
 148
 149    float inf_fpv = player->cam_velocity_influence_smooth *
 150                    player->camera_type_blend,
 151          inf_tpv = player->cam_velocity_influence_smooth *
 152                    (1.0f-player->camera_type_blend);
 153
 154    camera_lerp_angles( player->angles, velocity_angles,
 155                         inf_fpv,
 156                         player->angles );
 157
 158    /*
 159     * Third person camera
 160     */
 161
 162    /* no idea what this technique is called, it acts like clamped position based
 163     * on some derivative of where the final camera would end up ....
 164     *
 165     * it is done in the local basis then transformed back */
 166
 167    v3f future;
 168    v3_muls( player->rb.v, 0.4f*vg.time_frame_delta, future );
 169    m3x3_mulv( player->invbasis, future, future );
 170
 171    v3f camera_follow_dir =
 172       { -sinf( player->angles[0] ) * cosf( player->angles[1] ),
 173          sinf( player->angles[1] ),
 174          cosf( player->angles[0] ) * cosf( player->angles[1] ) };
 175
 176    v3f v0;
 177    v3_sub( camera_follow_dir, future, v0 );
 178
 179    v3f follow_angles;
 180    v3_copy( player->angles, follow_angles );
 181    follow_angles[0] = atan2f( -v0[0], v0[2] );
 182    follow_angles[1] = 0.3f + velocity_angles[1] * 0.2f;
 183
 184    float ya = atan2f( -velocity_local[1], 30.0f );
 185
 186    follow_angles[1] = 0.3f + ya;
 187    camera_lerp_angles( player->angles, follow_angles,
 188                         inf_tpv,
 189                         player->angles );
 190
 191    v3f pco;
 192    v4f pq;
 193    rb_extrapolate( &player->rb, pco, pq );
 194    v3_lerp( player->tpv_lpf, pco, 20.0f*vg.time_frame_delta, player->tpv_lpf );
 195
 196    /* now move into world */
 197
 198    m3x3_mulv( player->basis, camera_follow_dir, camera_follow_dir );
 199    v3f tpv_pos, tpv_offset;
 200
 201    v3_muladds( player->tpv_lpf, camera_follow_dir, 1.8f, tpv_pos );
 202    q_mulv( pq, player->tpv_offset_smooth, tpv_offset );
 203    v3_add( tpv_offset, tpv_pos, tpv_pos );
 204    v3_muladds( tpv_pos, player->cam_velocity_smooth, -0.025f, tpv_pos );
 205
 206    /*
 207     * Blend cameras
 208     */
 209    v3_lerp( tpv_pos, fpv_pos, player->camera_type_blend, player->cam.pos );
 210    v3_copy( player->angles, player->cam.angles );
 211
 212    /* Camera shake */
 213    f32 speed = v3_length(player->rb.v),
 214        strength = k_cam_shake_strength * speed;
 215    player->cam_trackshake += speed*k_cam_shake_trackspeed*vg.time_frame_delta;
 216
 217    v2f rnd = {perlin1d( player->cam_trackshake, 1.0f, 4, 20 ),
 218               perlin1d( player->cam_trackshake, 1.0f, 4, 63 ) };
 219    v2_muladds( player->cam.angles, rnd, strength, player->cam.angles );
 220
 221    v3f Fd, Fs, F;
 222    v3_muls( player->cam_land_punch_v, -k_cam_damp, Fd );
 223    v3_muls( player->cam_land_punch, -k_cam_spring, Fs );
 224    v3_muladds( player->cam_land_punch, player->cam_land_punch_v,
 225                vg.time_frame_delta, player->cam_land_punch );
 226    v3_add( Fd, Fs, F );
 227    v3_muladds( player->cam_land_punch_v, F, vg.time_frame_delta,
 228                player->cam_land_punch_v );
 229    v3_add( player->cam_land_punch, player->cam.pos, player->cam.pos );
 230
 231    /* override camera */
 232    player->cam.angles[0] =
 233       vg_alerpf(  player->cam.angles[0], player->cam_override_angles[0],
 234                   player->cam_override_strength );
 235    player->cam.angles[1] =
 236       vg_lerpf ( player->cam.angles[1], player->cam_override_angles[1],
 237                  player->cam_override_strength );
 238    v3_lerp( player->cam.pos, player->cam_override_pos,
 239             player->cam_override_strength, player->cam.pos );
 240    player->cam.fov = vg_lerpf( player->cam.fov, player->cam_override_fov,
 241                                player->cam_override_strength );
 242
 243
 244    if( cl_cinema >= 0.0001f ){
 245       ent_camera *cam = NULL;
 246       f32 min_dist = cl_cinema;
 247
 248       world_instance *world = player->viewable_world;
 249       for( u32 i=0; i<mdl_arrcount(&world->ent_camera); i++ ){
 250          ent_camera *c = mdl_arritm(&world->ent_camera,i);
 251
 252          f32 dist = v3_dist( c->transform.co, player->rb.co );
 253
 254          if( dist < min_dist ){
 255             min_dist = dist;
 256             cam = c;
 257          }
 258       }
 259
 260       if( cam ){
 261          player->cam.fov = cam->fov;
 262          v3_copy( cam->transform.co, player->cam.pos );
 263          v3f v0;
 264          if( cl_cinema_fixed )
 265             mdl_transform_vector( &cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 266          else v3_sub( player->rb.co, cam->transform.co, v0 );
 267          m3x3_mulv( player->invbasis, v0, v0 );
 268          player_vector_angles( player->cam.angles, v0, 1.0f, 0.0f );
 269       }
 270    }
 271
 272    /* portal transitions */
 273    player_camera_portal_correction( player );
 274 }
 275
 276 VG_STATIC void player_look( player_instance *player, v3f angles )
 277 {
 278    if( vg_ui.wants_mouse ) return;
 279
 280    float sensitivity = 1.0f-menu.factive;
 281
 282    angles[2] = 0.0f;
 283
 284    v2f mouse_input;
 285    v2_copy( vg.mouse_delta, mouse_input );
 286    if( cl_invert_y ) mouse_input[1] *= -1.0f;
 287    v2_muladds( angles, mouse_input, 0.0025f * sensitivity, angles );
 288
 289    v2f jlook;
 290    joystick_state( k_srjoystick_look, jlook );
 291
 292    angles[0] += jlook[0] * vg.time_delta * 4.0f * sensitivity;
 293    float input_y = jlook[1] * vg.time_delta * 4.0f;
 294    if( cl_invert_y ) input_y *= -1.0f;
 295
 296    angles[1] += input_y * sensitivity;
 297    angles[1] = vg_clampf( angles[1], -VG_PIf*0.5f, VG_PIf*0.5f );
 298 }
 299
 300 struct player_board *player_get_player_board( struct player_instance *player )
 301 {
 302    struct player_board *board = NULL;
 303
 304    if( localplayer.board_view_slot ){
 305       struct cache_board *cache_view = localplayer.board_view_slot;
 306       if( cache_view->state == k_cache_board_state_loaded ){
 307          board = &cache_view->board;
 308       }
 309    }
 310
 311    return board;
 312 }
 313
 314 #endif /* PLAYER_COMMON_C */