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 "input.h"
   7 #include "menu.h"
   8 #include "vg/vg_perlin.h"
   9
  10 static float player_get_heading_yaw(void){
  11    v3f xz;
  12    q_mulv( localplayer.rb.q, (v3f){ 0.0f,0.0f,1.0f }, xz );
  13    return atan2f( xz[0], xz[2] );
  14 }
  15
  16 static void player_camera_portal_correction(void){
  17    if( localplayer.gate_waiting ){
  18       /* construct plane equation for reciever gate */
  19       v4f plane;
  20       q_mulv( localplayer.gate_waiting->q[1], (v3f){0.0f,0.0f,1.0f}, plane );
  21       plane[3] = v3_dot( plane, localplayer.gate_waiting->co[1] );
  22
  23       f32 pol = v3_dot( localplayer.cam.pos, plane ) - plane[3];
  24
  25       int cleared = (pol < 0.0f) || (pol > 5.0f);
  26
  27       if( cleared ){
  28          vg_success( "Plane cleared\n" );
  29       }
  30
  31       m4x3f inverse;
  32       m4x3_invert_affine( localplayer.gate_waiting->transport, inverse );
  33
  34       /* de-transform camera and player back */
  35       v3f v0;
  36       m4x3_mulv( inverse, localplayer.cam.pos, localplayer.cam.pos );
  37       v3_angles_vector( localplayer.cam.angles, v0 );
  38       m3x3_mulv( inverse, v0, v0 );
  39       v3_angles( v0, localplayer.cam.angles );
  40
  41       skeleton_apply_transform( &localplayer.skeleton, inverse,
  42                                  localplayer.final_mtx );
  43
  44       /* record and re-put things again */
  45       if( cleared ){
  46          skaterift_record_frame( &skaterift.replay, 1 );
  47          localplayer.deferred_frame_record = 1;
  48
  49          skeleton_apply_transform( &localplayer.skeleton,
  50                                     localplayer.gate_waiting->transport,
  51                                     localplayer.final_mtx );
  52
  53          m4x3_mulv( localplayer.gate_waiting->transport,
  54                     localplayer.cam.pos, localplayer.cam.pos );
  55          v3_angles_vector( localplayer.cam.angles, v0 );
  56          m3x3_mulv( localplayer.gate_waiting->transport, v0, v0 );
  57          v3_angles( v0, localplayer.cam.angles );
  58          player_apply_transport_to_cam( localplayer.gate_waiting->transport );
  59          localplayer.gate_waiting = NULL;
  60       }
  61    }
  62 }
  63
  64 static void player__cam_iterate(void){
  65    struct player_cam_controller *cc = &localplayer.cam_control;
  66
  67    if( localplayer.subsystem == k_player_subsystem_walk ){
  68       v3_copy( (v3f){-0.1f,1.8f,0.0f}, cc->fpv_viewpoint );
  69       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  70       v3_copy( (v3f){0.0f,1.4f,0.0f}, cc->tpv_offset );
  71    }
  72    else if( localplayer.subsystem == k_player_subsystem_glide ){
  73       v3_copy( (v3f){-0.15f,1.75f,0.0f}, cc->fpv_viewpoint );
  74       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  75       v3_copy( (v3f){0.0f,-1.0f,0.0f}, cc->tpv_offset );
  76       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  77    }
  78    else{
  79       v3_copy( (v3f){-0.15f,1.75f,0.0f}, cc->fpv_viewpoint );
  80       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  81
  82       f32 h = vg_lerpf( 0.4f, 1.4f, k_cam_height );
  83       v3_copy( (v3f){0.0f,h,0.0f}, cc->tpv_offset );
  84       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  85    }
  86
  87    localplayer.cam_velocity_constant = 0.25f;
  88    localplayer.cam_velocity_coefficient = 0.7f;
  89
  90    /* lerping */
  91
  92    if( localplayer.cam_dist_smooth == 0.0f ){
  93       localplayer.cam_dist_smooth = localplayer.cam_dist;
  94    }
  95    else {
  96       localplayer.cam_dist_smooth = vg_lerpf(
  97             localplayer.cam_dist_smooth,
  98             localplayer.cam_dist,
  99             vg.time_frame_delta * 8.0f );
 100    }
 101
 102    localplayer.cam_velocity_influence_smooth = vg_lerpf(
 103          localplayer.cam_velocity_influence_smooth,
 104          localplayer.cam_velocity_influence,
 105          vg.time_frame_delta * 8.0f );
 106
 107    localplayer.cam_velocity_coefficient_smooth = vg_lerpf(
 108          localplayer.cam_velocity_coefficient_smooth,
 109          localplayer.cam_velocity_coefficient,
 110          vg.time_frame_delta * 8.0f );
 111
 112    localplayer.cam_velocity_constant_smooth = vg_lerpf(
 113          localplayer.cam_velocity_constant_smooth,
 114          localplayer.cam_velocity_constant,
 115          vg.time_frame_delta * 8.0f );
 116
 117    enum camera_mode target_mode = cc->camera_mode;
 118
 119    if( localplayer.subsystem == k_player_subsystem_dead )
 120       target_mode = k_cam_thirdperson;
 121
 122    cc->camera_type_blend =
 123       vg_lerpf( cc->camera_type_blend,
 124                (target_mode == k_cam_firstperson)? 1.0f: 0.0f,
 125                 5.0f * vg.time_frame_delta );
 126
 127    v3_lerp( cc->fpv_viewpoint_smooth, cc->fpv_viewpoint,
 128             vg.time_frame_delta * 8.0f, cc->fpv_viewpoint_smooth );
 129
 130    v3_lerp( cc->fpv_offset_smooth, cc->fpv_offset,
 131             vg.time_frame_delta * 8.0f, cc->fpv_offset_smooth );
 132
 133    v3_lerp( cc->tpv_offset_smooth, cc->tpv_offset,
 134             vg.time_frame_delta * 8.0f, cc->tpv_offset_smooth );
 135
 136    /* fov -- simple blend */
 137    float fov_skate = vg_lerpf( 97.0f, 135.0f, k_fov ),
 138          fov_walk  = vg_lerpf( 90.0f, 110.0f, k_fov );
 139
 140    localplayer.cam.fov = vg_lerpf( fov_walk, fov_skate, cc->camera_type_blend );
 141
 142    /*
 143     * first person camera
 144     */
 145
 146    /* position */
 147    v3f fpv_pos, fpv_offset;
 148    m4x3_mulv( localplayer.final_mtx[ localplayer.id_head-1 ],
 149                cc->fpv_viewpoint_smooth, fpv_pos );
 150    m3x3_mulv( localplayer.rb.to_world, cc->fpv_offset_smooth, fpv_offset );
 151    v3_add( fpv_offset, fpv_pos, fpv_pos );
 152
 153    /* angles */
 154    v3f velocity_angles;
 155    v3_lerp( cc->cam_velocity_smooth, localplayer.rb.v, 4.0f*vg.time_frame_delta,
 156             cc->cam_velocity_smooth );
 157
 158    v3_angles( cc->cam_velocity_smooth, velocity_angles );
 159    velocity_angles[1] *= localplayer.cam_velocity_coefficient_smooth;
 160    velocity_angles[1] += localplayer.cam_velocity_constant_smooth;
 161
 162    float inf_fpv = localplayer.cam_velocity_influence_smooth *
 163                      cc->camera_type_blend,
 164          inf_tpv = localplayer.cam_velocity_influence_smooth *
 165                      (1.0f-cc->camera_type_blend);
 166
 167    camera_lerp_angles( localplayer.angles, velocity_angles,
 168                         inf_fpv,
 169                         localplayer.angles );
 170
 171    /*
 172     * Third person camera
 173     */
 174
 175    /* no idea what this technique is called, it acts like clamped position based
 176     * on some derivative of where the final camera would end up ....
 177     *
 178     * it is done in the local basis then transformed back */
 179
 180    v3f future;
 181    v3_muls( localplayer.rb.v, 0.4f*vg.time_frame_delta, future );
 182
 183    v3f camera_follow_dir =
 184       { -sinf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ),
 185          sinf( localplayer.angles[1] ),
 186          cosf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ) };
 187
 188    v3f v0;
 189    v3_sub( camera_follow_dir, future, v0 );
 190
 191    v3f follow_angles;
 192    v3_copy( localplayer.angles, follow_angles );
 193    follow_angles[0] = atan2f( -v0[0], v0[2] );
 194    follow_angles[1] = 0.3f + velocity_angles[1] * 0.2f;
 195
 196    float ya = atan2f( -cc->cam_velocity_smooth[1], 30.0f );
 197
 198    follow_angles[1] = 0.3f + ya;
 199    camera_lerp_angles( localplayer.angles, follow_angles,
 200                         inf_tpv,
 201                         localplayer.angles );
 202
 203    v3f pco;
 204    v4f pq;
 205    rb_extrapolate( &localplayer.rb, pco, pq );
 206    v3_muladds( pco, localplayer.holdout_pose.root_co,
 207                localplayer.holdout_time, pco );
 208    v3_lerp( cc->tpv_lpf, pco, 20.0f*vg.time_frame_delta, cc->tpv_lpf );
 209
 210    /* now move into world */
 211    v3f tpv_pos, tpv_offset, tpv_origin;
 212
 213    /* TODO: whats up with CC and not CC but both sets of variables are doing
 214     *       the same ideas just saved in different places?
 215     */
 216    /* origin */
 217    q_mulv( pq, cc->tpv_offset_smooth, tpv_origin );
 218    v3_add( tpv_origin, cc->tpv_lpf, tpv_origin );
 219
 220    /* offset */
 221    v3_muls( camera_follow_dir, localplayer.cam_dist_smooth, tpv_offset );
 222    v3_muladds( tpv_offset, cc->cam_velocity_smooth, -0.025f, tpv_offset );
 223
 224    v3_add( tpv_origin, tpv_offset, tpv_pos );
 225
 226    /*
 227     * Blend cameras
 228     */
 229    v3_lerp( tpv_pos, fpv_pos, cc->camera_type_blend, localplayer.cam.pos );
 230    v3_copy( localplayer.angles, localplayer.cam.angles );
 231
 232    /* Camera shake */
 233    f32 speed = v3_length(localplayer.rb.v),
 234        strength = k_cam_shake_strength * speed;
 235    localplayer.cam_trackshake +=
 236       speed*k_cam_shake_trackspeed*vg.time_frame_delta;
 237
 238    v2f rnd = {vg_perlin_fract_1d( localplayer.cam_trackshake, 1.0f, 4, 20 ),
 239               vg_perlin_fract_1d( localplayer.cam_trackshake, 1.0f, 4, 63 ) };
 240    v2_muladds( localplayer.cam.angles, rnd, strength, localplayer.cam.angles );
 241
 242    v3f Fd, Fs, F;
 243    v3_muls( localplayer.cam_land_punch_v, -k_cam_damp, Fd );
 244    v3_muls( localplayer.cam_land_punch, -k_cam_spring, Fs );
 245    v3_muladds( localplayer.cam_land_punch, localplayer.cam_land_punch_v,
 246                vg.time_frame_delta, localplayer.cam_land_punch );
 247    v3_add( Fd, Fs, F );
 248    v3_muladds( localplayer.cam_land_punch_v, F, vg.time_frame_delta,
 249                localplayer.cam_land_punch_v );
 250    v3_add( localplayer.cam_land_punch, localplayer.cam.pos,
 251            localplayer.cam.pos );
 252
 253    if( k_cinema >= 0.0001f ){
 254       ent_camera *cam = NULL;
 255       f32 min_dist = k_cinema;
 256
 257       world_instance *world = world_current_instance();
 258       for( u32 i=0; i<mdl_arrcount(&world->ent_camera); i++ ){
 259          ent_camera *c = mdl_arritm(&world->ent_camera,i);
 260
 261          f32 dist = v3_dist( c->transform.co, localplayer.rb.co );
 262
 263          if( dist < min_dist ){
 264             min_dist = dist;
 265             cam = c;
 266          }
 267       }
 268
 269       if( cam ){
 270          localplayer.cam.fov = cam->fov;
 271          v3_copy( cam->transform.co, localplayer.cam.pos );
 272          v3f v0;
 273          if( k_cinema_fixed )
 274             mdl_transform_vector( &cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 275          else
 276             v3_sub( localplayer.rb.co, cam->transform.co, v0 );
 277
 278          v3_angles( v0, localplayer.cam.angles );
 279       }
 280    }
 281
 282    /* portal transitions */
 283    player_camera_portal_correction();
 284 }
 285
 286 static void player_look( v3f angles, float speed ){
 287    if( vg_ui.wants_mouse ) return;
 288
 289    angles[2] = 0.0f;
 290
 291    v2f mouse_input;
 292    v2_copy( vg.mouse_delta, mouse_input );
 293    if( k_invert_y ) mouse_input[1] *= -1.0f;
 294    v2_muladds( angles, mouse_input, 0.0025f * speed, angles );
 295
 296    v2f jlook;
 297    joystick_state( k_srjoystick_look, jlook );
 298
 299    angles[0] += jlook[0] * vg.time_frame_delta * 4.0f * speed;
 300    float input_y = jlook[1] * vg.time_frame_delta * 4.0f;
 301    if( k_invert_y ) input_y *= -1.0f;
 302
 303    angles[1] += input_y * speed;
 304    angles[1] = vg_clampf( angles[1], -VG_PIf*0.5f, VG_PIf*0.5f );
 305 }
 306
 307 #endif /* PLAYER_COMMON_C */