player_common.c

   1 #include "ent_skateshop.h"
   2 #include "player.h"
   3 #include "input.h"
   4 #include "menu.h"
   5 #include "vg/vg_perlin.h"
   6
   7 static float player_get_heading_yaw(void){
   8    v3f xz;
   9    q_mulv( localplayer.rb.q, (v3f){ 0.0f,0.0f,1.0f }, xz );
  10    return atan2f( xz[0], xz[2] );
  11 }
  12
  13 static void player_camera_portal_correction(void){
  14    if( localplayer.gate_waiting ){
  15       /* construct plane equation for reciever gate */
  16       v4f plane;
  17       q_mulv( localplayer.gate_waiting->q[1], (v3f){0.0f,0.0f,1.0f}, plane );
  18       plane[3] = v3_dot( plane, localplayer.gate_waiting->co[1] );
  19
  20       f32 pol = v3_dot( localplayer.cam.pos, plane ) - plane[3];
  21
  22       int cleared = (pol < 0.0f) || (pol > 5.0f);
  23
  24       if( cleared ){
  25          vg_success( "Plane cleared\n" );
  26       }
  27
  28       m4x3f inverse;
  29       m4x3_invert_affine( localplayer.gate_waiting->transport, inverse );
  30
  31       /* de-transform camera and player back */
  32       v3f v0;
  33       m4x3_mulv( inverse, localplayer.cam.pos, localplayer.cam.pos );
  34       v3_angles_vector( localplayer.cam.angles, v0 );
  35       m3x3_mulv( inverse, v0, v0 );
  36       v3_angles( v0, localplayer.cam.angles );
  37
  38       skeleton_apply_transform( &localplayer.skeleton, inverse,
  39                                  localplayer.final_mtx );
  40
  41       /* record and re-put things again */
  42       if( cleared )
  43       {
  44          skaterift_record_frame( &player_replay.local, 1 );
  45          localplayer.deferred_frame_record = 1;
  46
  47          skeleton_apply_transform( &localplayer.skeleton,
  48                                     localplayer.gate_waiting->transport,
  49                                     localplayer.final_mtx );
  50
  51          m4x3_mulv( localplayer.gate_waiting->transport,
  52                     localplayer.cam.pos, localplayer.cam.pos );
  53          v3_angles_vector( localplayer.cam.angles, v0 );
  54          m3x3_mulv( localplayer.gate_waiting->transport, v0, v0 );
  55          v3_angles( v0, localplayer.cam.angles );
  56          player_apply_transport_to_cam( localplayer.gate_waiting->transport );
  57          localplayer.gate_waiting = NULL;
  58       }
  59    }
  60 }
  61
  62 static void player__cam_iterate(void){
  63    struct player_cam_controller *cc = &localplayer.cam_control;
  64
  65    if( localplayer.subsystem == k_player_subsystem_walk ){
  66       v3_copy( (v3f){-0.1f,1.8f,0.0f}, cc->fpv_viewpoint );
  67       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  68       v3_copy( (v3f){0.0f,1.4f,0.0f}, cc->tpv_offset );
  69    }
  70    else if( localplayer.subsystem == k_player_subsystem_glide ){
  71       v3_copy( (v3f){-0.15f,1.75f,0.0f}, cc->fpv_viewpoint );
  72       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  73       v3_copy( (v3f){0.0f,-1.0f,0.0f}, cc->tpv_offset );
  74       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  75    }
  76    else{
  77       v3_copy( (v3f){-0.15f,1.75f,0.0f}, cc->fpv_viewpoint );
  78       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  79
  80       f32 h = vg_lerpf( 0.4f, 1.4f, k_cam_height );
  81       v3_copy( (v3f){0.0f,h,0.0f}, cc->tpv_offset );
  82       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  83    }
  84
  85    localplayer.cam_velocity_constant = 0.25f;
  86    localplayer.cam_velocity_coefficient = 0.7f;
  87
  88    /* lerping */
  89
  90    if( localplayer.cam_dist_smooth == 0.0f ){
  91       localplayer.cam_dist_smooth = localplayer.cam_dist;
  92    }
  93    else {
  94       localplayer.cam_dist_smooth = vg_lerpf(
  95             localplayer.cam_dist_smooth,
  96             localplayer.cam_dist,
  97             vg.time_frame_delta * 8.0f );
  98    }
  99
 100    localplayer.cam_velocity_influence_smooth = vg_lerpf(
 101          localplayer.cam_velocity_influence_smooth,
 102          localplayer.cam_velocity_influence,
 103          vg.time_frame_delta * 8.0f );
 104
 105    localplayer.cam_velocity_coefficient_smooth = vg_lerpf(
 106          localplayer.cam_velocity_coefficient_smooth,
 107          localplayer.cam_velocity_coefficient,
 108          vg.time_frame_delta * 8.0f );
 109
 110    localplayer.cam_velocity_constant_smooth = vg_lerpf(
 111          localplayer.cam_velocity_constant_smooth,
 112          localplayer.cam_velocity_constant,
 113          vg.time_frame_delta * 8.0f );
 114
 115    enum camera_mode target_mode = cc->camera_mode;
 116
 117    if( localplayer.subsystem == k_player_subsystem_dead )
 118       target_mode = k_cam_thirdperson;
 119
 120    cc->camera_type_blend =
 121       vg_lerpf( cc->camera_type_blend,
 122                (target_mode == k_cam_firstperson)? 1.0f: 0.0f,
 123                 5.0f * vg.time_frame_delta );
 124
 125    v3_lerp( cc->fpv_viewpoint_smooth, cc->fpv_viewpoint,
 126             vg.time_frame_delta * 8.0f, cc->fpv_viewpoint_smooth );
 127
 128    v3_lerp( cc->fpv_offset_smooth, cc->fpv_offset,
 129             vg.time_frame_delta * 8.0f, cc->fpv_offset_smooth );
 130
 131    v3_lerp( cc->tpv_offset_smooth, cc->tpv_offset,
 132             vg.time_frame_delta * 8.0f, cc->tpv_offset_smooth );
 133
 134    /* fov -- simple blend */
 135    float fov_skate = vg_lerpf( 97.0f, 135.0f, k_fov ),
 136          fov_walk  = vg_lerpf( 90.0f, 110.0f, k_fov );
 137
 138    localplayer.cam.fov = vg_lerpf( fov_walk, fov_skate, cc->camera_type_blend );
 139
 140    /*
 141     * first person camera
 142     */
 143
 144    /* position */
 145    v3f fpv_pos, fpv_offset;
 146    m4x3_mulv( localplayer.final_mtx[ localplayer.id_head-1 ],
 147                cc->fpv_viewpoint_smooth, fpv_pos );
 148    m3x3_mulv( localplayer.rb.to_world, cc->fpv_offset_smooth, fpv_offset );
 149    v3_add( fpv_offset, fpv_pos, fpv_pos );
 150
 151    /* angles */
 152    v3f velocity_angles;
 153    v3_lerp( cc->cam_velocity_smooth, localplayer.rb.v, 4.0f*vg.time_frame_delta,
 154             cc->cam_velocity_smooth );
 155
 156    v3_angles( cc->cam_velocity_smooth, velocity_angles );
 157    velocity_angles[1] *= localplayer.cam_velocity_coefficient_smooth;
 158    velocity_angles[1] += localplayer.cam_velocity_constant_smooth;
 159
 160    float inf_fpv = localplayer.cam_velocity_influence_smooth *
 161                      cc->camera_type_blend,
 162          inf_tpv = localplayer.cam_velocity_influence_smooth *
 163                      (1.0f-cc->camera_type_blend);
 164
 165    vg_camera_lerp_angles( localplayer.angles, velocity_angles,
 166                         inf_fpv,
 167                         localplayer.angles );
 168
 169    /*
 170     * Third person camera
 171     */
 172
 173    /* no idea what this technique is called, it acts like clamped position based
 174     * on some derivative of where the final camera would end up ....
 175     *
 176     * it is done in the local basis then transformed back */
 177
 178    v3f future;
 179    v3_muls( localplayer.rb.v, 0.4f*vg.time_frame_delta, future );
 180
 181    v3f camera_follow_dir =
 182       { -sinf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ),
 183          sinf( localplayer.angles[1] ),
 184          cosf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ) };
 185
 186    v3f v0;
 187    v3_sub( camera_follow_dir, future, v0 );
 188
 189    v3f follow_angles;
 190    v3_copy( localplayer.angles, follow_angles );
 191    follow_angles[0] = atan2f( -v0[0], v0[2] );
 192    follow_angles[1] = 0.3f + velocity_angles[1] * 0.2f;
 193
 194    float ya = atan2f( -cc->cam_velocity_smooth[1], 30.0f );
 195
 196    follow_angles[1] = 0.3f + ya;
 197    vg_camera_lerp_angles( localplayer.angles, follow_angles,
 198                         inf_tpv,
 199                         localplayer.angles );
 200
 201    v3f pco;
 202    v4f pq;
 203    rb_extrapolate( &localplayer.rb, pco, pq );
 204    v3_muladds( pco, localplayer.holdout_pose.root_co,
 205                localplayer.holdout_time, pco );
 206    v3_lerp( cc->tpv_lpf, pco, 20.0f*vg.time_frame_delta, cc->tpv_lpf );
 207
 208    /* now move into world */
 209    v3f tpv_pos, tpv_offset, tpv_origin;
 210
 211    /* TODO: whats up with CC and not CC but both sets of variables are doing
 212     *       the same ideas just saved in different places?
 213     */
 214    /* origin */
 215    q_mulv( pq, cc->tpv_offset_smooth, tpv_origin );
 216    v3_add( tpv_origin, cc->tpv_lpf, tpv_origin );
 217
 218    /* offset */
 219    v3_muls( camera_follow_dir, localplayer.cam_dist_smooth, tpv_offset );
 220    v3_muladds( tpv_offset, cc->cam_velocity_smooth, -0.025f, tpv_offset );
 221
 222    v3_add( tpv_origin, tpv_offset, tpv_pos );
 223
 224    /*
 225     * Blend cameras
 226     */
 227    v3_lerp( tpv_pos, fpv_pos, cc->camera_type_blend, localplayer.cam.pos );
 228    v3_copy( localplayer.angles, localplayer.cam.angles );
 229
 230    /* Camera shake */
 231    f32 speed = v3_length(localplayer.rb.v),
 232        strength = k_cam_shake_strength * speed;
 233    localplayer.cam_trackshake +=
 234       speed*k_cam_shake_trackspeed*vg.time_frame_delta;
 235
 236    v2f rnd = {vg_perlin_fract_1d( localplayer.cam_trackshake, 1.0f, 4, 20 ),
 237               vg_perlin_fract_1d( localplayer.cam_trackshake, 1.0f, 4, 63 ) };
 238    v2_muladds( localplayer.cam.angles, rnd, strength, localplayer.cam.angles );
 239
 240    v3f Fd, Fs, F;
 241    v3_muls( localplayer.cam_land_punch_v, -k_cam_damp, Fd );
 242    v3_muls( localplayer.cam_land_punch, -k_cam_spring, Fs );
 243    v3_muladds( localplayer.cam_land_punch, localplayer.cam_land_punch_v,
 244                vg.time_frame_delta, localplayer.cam_land_punch );
 245    v3_add( Fd, Fs, F );
 246    v3_muladds( localplayer.cam_land_punch_v, F, vg.time_frame_delta,
 247                localplayer.cam_land_punch_v );
 248    v3_add( localplayer.cam_land_punch, localplayer.cam.pos,
 249            localplayer.cam.pos );
 250
 251    /* portal transitions */
 252    player_camera_portal_correction();
 253 }
 254
 255 static void player_look( v3f angles, float speed ){
 256    if( vg_ui.wants_mouse ) return;
 257
 258    angles[2] = 0.0f;
 259
 260    v2f mouse_input;
 261    v2_copy( vg.mouse_delta, mouse_input );
 262    if( k_invert_y ) mouse_input[1] *= -1.0f;
 263    v2_muladds( angles, mouse_input, 0.0025f * speed, angles );
 264
 265    v2f jlook;
 266    joystick_state( k_srjoystick_look, jlook );
 267
 268    angles[0] += jlook[0] * vg.time_frame_delta * 4.0f * speed;
 269    float input_y = jlook[1] * vg.time_frame_delta * 4.0f;
 270    if( k_invert_y ) input_y *= -1.0f;
 271
 272    angles[1] += input_y * speed;
 273    angles[1] = vg_clampf( angles[1], -VG_PIf*0.5f, VG_PIf*0.5f );
 274 }