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{
  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
  76       f32 h = vg_lerpf( 0.4f, 1.4f, k_cam_height );
  77       v3_copy( (v3f){0.0f,h,0.0f}, cc->tpv_offset );
  78       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  79    }
  80
  81    localplayer.cam_velocity_constant = 0.25f;
  82    localplayer.cam_velocity_coefficient = 0.7f;
  83
  84    /* lerping */
  85
  86    localplayer.cam_velocity_influence_smooth = vg_lerpf(
  87          localplayer.cam_velocity_influence_smooth,
  88          localplayer.cam_velocity_influence,
  89          vg.time_frame_delta * 8.0f );
  90
  91    localplayer.cam_velocity_coefficient_smooth = vg_lerpf(
  92          localplayer.cam_velocity_coefficient_smooth,
  93          localplayer.cam_velocity_coefficient,
  94          vg.time_frame_delta * 8.0f );
  95
  96    localplayer.cam_velocity_constant_smooth = vg_lerpf(
  97          localplayer.cam_velocity_constant_smooth,
  98          localplayer.cam_velocity_constant,
  99          vg.time_frame_delta * 8.0f );
 100
 101    enum camera_mode target_mode = cc->camera_mode;
 102
 103    if( localplayer.subsystem == k_player_subsystem_dead )
 104       target_mode = k_cam_thirdperson;
 105
 106    cc->camera_type_blend =
 107       vg_lerpf( cc->camera_type_blend,
 108                (target_mode == k_cam_firstperson)? 1.0f: 0.0f,
 109                 5.0f * vg.time_frame_delta );
 110
 111    v3_lerp( cc->fpv_viewpoint_smooth, cc->fpv_viewpoint,
 112             vg.time_frame_delta * 8.0f, cc->fpv_viewpoint_smooth );
 113
 114    v3_lerp( cc->fpv_offset_smooth, cc->fpv_offset,
 115             vg.time_frame_delta * 8.0f, cc->fpv_offset_smooth );
 116
 117    v3_lerp( cc->tpv_offset_smooth, cc->tpv_offset,
 118             vg.time_frame_delta * 8.0f, cc->tpv_offset_smooth );
 119
 120    /* fov -- simple blend */
 121    float fov_skate = vg_lerpf( 97.0f, 135.0f, k_fov ),
 122          fov_walk  = vg_lerpf( 90.0f, 110.0f, k_fov );
 123
 124    localplayer.cam.fov = vg_lerpf( fov_walk, fov_skate, cc->camera_type_blend );
 125
 126    /*
 127     * first person camera
 128     */
 129
 130    /* position */
 131    v3f fpv_pos, fpv_offset;
 132    m4x3_mulv( localplayer.final_mtx[ localplayer.id_head-1 ],
 133                cc->fpv_viewpoint_smooth, fpv_pos );
 134    m3x3_mulv( localplayer.rb.to_world, cc->fpv_offset_smooth, fpv_offset );
 135    v3_add( fpv_offset, fpv_pos, fpv_pos );
 136
 137    /* angles */
 138    v3f velocity_angles;
 139    v3_lerp( cc->cam_velocity_smooth, localplayer.rb.v, 4.0f*vg.time_frame_delta,
 140             cc->cam_velocity_smooth );
 141
 142    v3_angles( cc->cam_velocity_smooth, velocity_angles );
 143    velocity_angles[1] *= localplayer.cam_velocity_coefficient_smooth;
 144    velocity_angles[1] += localplayer.cam_velocity_constant_smooth;
 145
 146    float inf_fpv = localplayer.cam_velocity_influence_smooth *
 147                      cc->camera_type_blend,
 148          inf_tpv = localplayer.cam_velocity_influence_smooth *
 149                      (1.0f-cc->camera_type_blend);
 150
 151    camera_lerp_angles( localplayer.angles, velocity_angles,
 152                         inf_fpv,
 153                         localplayer.angles );
 154
 155    /*
 156     * Third person camera
 157     */
 158
 159    /* no idea what this technique is called, it acts like clamped position based
 160     * on some derivative of where the final camera would end up ....
 161     *
 162     * it is done in the local basis then transformed back */
 163
 164    v3f future;
 165    v3_muls( localplayer.rb.v, 0.4f*vg.time_frame_delta, future );
 166
 167    v3f camera_follow_dir =
 168       { -sinf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ),
 169          sinf( localplayer.angles[1] ),
 170          cosf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ) };
 171
 172    v3f v0;
 173    v3_sub( camera_follow_dir, future, v0 );
 174
 175    v3f follow_angles;
 176    v3_copy( localplayer.angles, follow_angles );
 177    follow_angles[0] = atan2f( -v0[0], v0[2] );
 178    follow_angles[1] = 0.3f + velocity_angles[1] * 0.2f;
 179
 180    float ya = atan2f( -cc->cam_velocity_smooth[1], 30.0f );
 181
 182    follow_angles[1] = 0.3f + ya;
 183    camera_lerp_angles( localplayer.angles, follow_angles,
 184                         inf_tpv,
 185                         localplayer.angles );
 186
 187    v3f pco;
 188    v4f pq;
 189    rb_extrapolate( &localplayer.rb, pco, pq );
 190    v3_muladds( pco, localplayer.holdout_pose.root_co,
 191                localplayer.holdout_time, pco );
 192    v3_lerp( cc->tpv_lpf, pco, 20.0f*vg.time_frame_delta, cc->tpv_lpf );
 193
 194    /* now move into world */
 195    v3f tpv_pos, tpv_offset, tpv_origin;
 196
 197    /* origin */
 198    q_mulv( pq, cc->tpv_offset_smooth, tpv_origin );
 199    v3_add( tpv_origin, cc->tpv_lpf, tpv_origin );
 200
 201    /* offset */
 202    v3_muls( camera_follow_dir, 1.8f, tpv_offset );
 203    v3_muladds( tpv_offset, cc->cam_velocity_smooth, -0.025f, tpv_offset );
 204
 205    v3_add( tpv_origin, tpv_offset, tpv_pos );
 206
 207    /*
 208     * Blend cameras
 209     */
 210    v3_lerp( tpv_pos, fpv_pos, cc->camera_type_blend, localplayer.cam.pos );
 211    v3_copy( localplayer.angles, localplayer.cam.angles );
 212
 213    /* Camera shake */
 214    f32 speed = v3_length(localplayer.rb.v),
 215        strength = k_cam_shake_strength * speed;
 216    localplayer.cam_trackshake +=
 217       speed*k_cam_shake_trackspeed*vg.time_frame_delta;
 218
 219    v2f rnd = {perlin1d( localplayer.cam_trackshake, 1.0f, 4, 20 ),
 220               perlin1d( localplayer.cam_trackshake, 1.0f, 4, 63 ) };
 221    v2_muladds( localplayer.cam.angles, rnd, strength, localplayer.cam.angles );
 222
 223    v3f Fd, Fs, F;
 224    v3_muls( localplayer.cam_land_punch_v, -k_cam_damp, Fd );
 225    v3_muls( localplayer.cam_land_punch, -k_cam_spring, Fs );
 226    v3_muladds( localplayer.cam_land_punch, localplayer.cam_land_punch_v,
 227                vg.time_frame_delta, localplayer.cam_land_punch );
 228    v3_add( Fd, Fs, F );
 229    v3_muladds( localplayer.cam_land_punch_v, F, vg.time_frame_delta,
 230                localplayer.cam_land_punch_v );
 231    v3_add( localplayer.cam_land_punch, localplayer.cam.pos,
 232            localplayer.cam.pos );
 233
 234    if( k_cinema >= 0.0001f ){
 235       ent_camera *cam = NULL;
 236       f32 min_dist = k_cinema;
 237
 238       world_instance *world = world_current_instance();
 239       for( u32 i=0; i<mdl_arrcount(&world->ent_camera); i++ ){
 240          ent_camera *c = mdl_arritm(&world->ent_camera,i);
 241
 242          f32 dist = v3_dist( c->transform.co, localplayer.rb.co );
 243
 244          if( dist < min_dist ){
 245             min_dist = dist;
 246             cam = c;
 247          }
 248       }
 249
 250       if( cam ){
 251          localplayer.cam.fov = cam->fov;
 252          v3_copy( cam->transform.co, localplayer.cam.pos );
 253          v3f v0;
 254          if( k_cinema_fixed )
 255             mdl_transform_vector( &cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 256          else
 257             v3_sub( localplayer.rb.co, cam->transform.co, v0 );
 258
 259          v3_angles( v0, localplayer.cam.angles );
 260       }
 261    }
 262
 263    /* portal transitions */
 264    player_camera_portal_correction();
 265 }
 266
 267 static void player_look( v3f angles, float speed ){
 268    if( vg_ui.wants_mouse ) return;
 269
 270    angles[2] = 0.0f;
 271
 272    v2f mouse_input;
 273    v2_copy( vg.mouse_delta, mouse_input );
 274    if( k_invert_y ) mouse_input[1] *= -1.0f;
 275    v2_muladds( angles, mouse_input, 0.0025f * speed, angles );
 276
 277    v2f jlook;
 278    joystick_state( k_srjoystick_look, jlook );
 279
 280    angles[0] += jlook[0] * vg.time_frame_delta * 4.0f * speed;
 281    float input_y = jlook[1] * vg.time_frame_delta * 4.0f;
 282    if( k_invert_y ) input_y *= -1.0f;
 283
 284    angles[1] += input_y * speed;
 285    angles[1] = vg_clampf( angles[1], -VG_PIf*0.5f, VG_PIf*0.5f );
 286 }
 287
 288 #endif /* PLAYER_COMMON_C */