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