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 float player_get_heading_yaw(void)
   8 {
   9    v3f xz;
  10    q_mulv( localplayer.rb.q, (v3f){ 0.0f,0.0f,1.0f }, xz );
  11    return atan2f( xz[0], xz[2] );
  12 }
  13
  14 static void player_camera_portal_correction(void)
  15 {
  16    if( localplayer.gate_waiting ){
  17       /* construct plane equation for reciever gate */
  18       v4f plane;
  19       q_mulv( localplayer.gate_waiting->q[1], (v3f){0.0f,0.0f,1.0f}, plane );
  20       plane[3] = v3_dot( plane, localplayer.gate_waiting->co[1] );
  21
  22       f32 pol = v3_dot( localplayer.cam.pos, plane ) - plane[3];
  23
  24       int cleared = (pol < 0.0f) || (pol > 5.0f);
  25
  26       if( cleared ){
  27          vg_success( "Plane cleared\n" );
  28       }
  29
  30       m4x3f inverse;
  31       m4x3_invert_affine( localplayer.gate_waiting->transport, inverse );
  32
  33       /* de-transform camera and player back */
  34       v3f v0;
  35       m4x3_mulv( inverse, localplayer.cam.pos, localplayer.cam.pos );
  36       v3_angles_vector( localplayer.cam.angles, v0 );
  37       m3x3_mulv( inverse, v0, v0 );
  38       v3_angles( v0, localplayer.cam.angles );
  39
  40       skeleton_apply_transform( &localplayer.skeleton, inverse,
  41                                  localplayer.final_mtx );
  42
  43       /* record and re-put things again */
  44       if( cleared )
  45       {
  46          skaterift_record_frame( &player_replay.local, 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 void player__cam_iterate(void)
  65 {
  66    struct player_cam_controller *cc = &localplayer.cam_control;
  67
  68    if( localplayer.subsystem == k_player_subsystem_walk ){
  69       v3_copy( (v3f){-0.1f,1.8f,0.0f}, cc->fpv_viewpoint );
  70       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  71       v3_copy( (v3f){0.0f,1.8f,0.0f}, cc->tpv_offset );
  72    }
  73    else if( localplayer.subsystem == k_player_subsystem_glide ){
  74       v3_copy( (v3f){-0.15f,1.75f,0.0f}, cc->fpv_viewpoint );
  75       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  76       v3_copy( (v3f){0.0f,-1.0f,0.0f}, cc->tpv_offset );
  77       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  78    }
  79    else{
  80       v3_copy( (v3f){-0.15f,1.75f,0.0f}, cc->fpv_viewpoint );
  81       v3_copy( (v3f){0.0f,0.0f,0.0f}, cc->fpv_offset );
  82
  83       f32 h = vg_lerpf( 0.4f, 1.4f, k_cam_height );
  84       v3_copy( (v3f){0.0f,h,0.0f}, cc->tpv_offset );
  85       v3_add( cc->tpv_offset_extra, cc->tpv_offset, cc->tpv_offset );
  86    }
  87
  88    localplayer.cam_velocity_constant = 0.25f;
  89    localplayer.cam_velocity_coefficient = 0.7f;
  90
  91    /* lerping */
  92
  93    if( localplayer.cam_dist_smooth == 0.0f ){
  94       localplayer.cam_dist_smooth = localplayer.cam_dist;
  95    }
  96    else {
  97       localplayer.cam_dist_smooth = vg_lerpf(
  98             localplayer.cam_dist_smooth,
  99             localplayer.cam_dist,
 100             vg.time_frame_delta * 8.0f );
 101    }
 102
 103    localplayer.cam_velocity_influence_smooth = vg_lerpf(
 104          localplayer.cam_velocity_influence_smooth,
 105          localplayer.cam_velocity_influence,
 106          vg.time_frame_delta * 8.0f );
 107
 108    localplayer.cam_velocity_coefficient_smooth = vg_lerpf(
 109          localplayer.cam_velocity_coefficient_smooth,
 110          localplayer.cam_velocity_coefficient,
 111          vg.time_frame_delta * 8.0f );
 112
 113    localplayer.cam_velocity_constant_smooth = vg_lerpf(
 114          localplayer.cam_velocity_constant_smooth,
 115          localplayer.cam_velocity_constant,
 116          vg.time_frame_delta * 8.0f );
 117
 118    enum camera_mode target_mode = cc->camera_mode;
 119
 120    if( localplayer.subsystem == k_player_subsystem_dead )
 121       target_mode = k_cam_thirdperson;
 122
 123    cc->camera_type_blend =
 124       vg_lerpf( cc->camera_type_blend,
 125                (target_mode == k_cam_firstperson)? 1.0f: 0.0f,
 126                 5.0f * vg.time_frame_delta );
 127
 128    v3_lerp( cc->fpv_viewpoint_smooth, cc->fpv_viewpoint,
 129             vg.time_frame_delta * 8.0f, cc->fpv_viewpoint_smooth );
 130
 131    v3_lerp( cc->fpv_offset_smooth, cc->fpv_offset,
 132             vg.time_frame_delta * 8.0f, cc->fpv_offset_smooth );
 133
 134    v3_lerp( cc->tpv_offset_smooth, cc->tpv_offset,
 135             vg.time_frame_delta * 8.0f, cc->tpv_offset_smooth );
 136
 137    /* fov -- simple blend */
 138    float fov_skate = vg_lerpf( 97.0f, 135.0f, k_fov ),
 139          fov_walk  = vg_lerpf( 90.0f, 110.0f, k_fov );
 140
 141    localplayer.cam.fov = vg_lerpf( fov_walk, fov_skate, cc->camera_type_blend );
 142
 143    /*
 144     * first person camera
 145     */
 146
 147    /* position */
 148    v3f fpv_pos, fpv_offset;
 149    m4x3_mulv( localplayer.final_mtx[ localplayer.id_head-1 ],
 150                cc->fpv_viewpoint_smooth, fpv_pos );
 151    m3x3_mulv( localplayer.rb.to_world, cc->fpv_offset_smooth, fpv_offset );
 152    v3_add( fpv_offset, fpv_pos, fpv_pos );
 153
 154    /* angles */
 155    v3f velocity_angles;
 156    v3_lerp( cc->cam_velocity_smooth, localplayer.rb.v, 4.0f*vg.time_frame_delta,
 157             cc->cam_velocity_smooth );
 158
 159    v3_angles( cc->cam_velocity_smooth, velocity_angles );
 160    velocity_angles[1] *= localplayer.cam_velocity_coefficient_smooth;
 161    velocity_angles[1] += localplayer.cam_velocity_constant_smooth;
 162
 163    float inf_fpv = localplayer.cam_velocity_influence_smooth *
 164                      cc->camera_type_blend,
 165          inf_tpv = localplayer.cam_velocity_influence_smooth *
 166                      (1.0f-cc->camera_type_blend);
 167
 168    vg_camera_lerp_angles( localplayer.angles, velocity_angles,
 169                         inf_fpv,
 170                         localplayer.angles );
 171
 172    /*
 173     * Third person camera
 174     */
 175
 176    /* no idea what this technique is called, it acts like clamped position based
 177     * on some derivative of where the final camera would end up ....
 178     *
 179     * it is done in the local basis then transformed back */
 180
 181    v3f future;
 182    v3_muls( localplayer.rb.v, 0.4f*vg.time_frame_delta, future );
 183
 184    v3f camera_follow_dir =
 185       { -sinf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ),
 186          sinf( localplayer.angles[1] ),
 187          cosf( localplayer.angles[0] ) * cosf( localplayer.angles[1] ) };
 188
 189    v3f v0;
 190    v3_sub( camera_follow_dir, future, v0 );
 191
 192    v3f follow_angles;
 193    v3_copy( localplayer.angles, follow_angles );
 194    follow_angles[0] = atan2f( -v0[0], v0[2] );
 195    follow_angles[1] = 0.3f + velocity_angles[1] * 0.2f;
 196
 197    float ya = atan2f( -cc->cam_velocity_smooth[1], 30.0f );
 198
 199    follow_angles[1] = 0.3f + ya;
 200    vg_camera_lerp_angles( localplayer.angles, follow_angles,
 201                         inf_tpv,
 202                         localplayer.angles );
 203
 204    v3f pco;
 205    v4f pq;
 206    rb_extrapolate( &localplayer.rb, pco, pq );
 207    v3_muladds( pco, localplayer.holdout_pose.root_co,
 208                localplayer.holdout_time, pco );
 209    v3_lerp( cc->tpv_lpf, pco, 20.0f*vg.time_frame_delta, cc->tpv_lpf );
 210
 211    /* now move into world */
 212    v3f tpv_pos, tpv_offset, tpv_origin;
 213
 214    /* TODO: whats up with CC and not CC but both sets of variables are doing
 215     *       the same ideas just saved in different places?
 216     */
 217    /* origin */
 218    q_mulv( pq, cc->tpv_offset_smooth, tpv_origin );
 219    v3_add( tpv_origin, cc->tpv_lpf, tpv_origin );
 220
 221    /* offset */
 222    v3_muls( camera_follow_dir, localplayer.cam_dist_smooth, tpv_offset );
 223    v3_muladds( tpv_offset, cc->cam_velocity_smooth, -0.025f, tpv_offset );
 224
 225    v3_add( tpv_origin, tpv_offset, tpv_pos );
 226
 227 #if 0
 228    if( localplayer.subsystem == k_player_subsystem_walk )
 229    {
 230       v3f fwd, right;
 231       v3_angles_vector( localplayer.angles, fwd );
 232       v3_cross( fwd, (v3f){0,1.001f,0}, right );
 233       right[1] = 0.0f;
 234       v3_normalize( right );
 235       v3_muladds( tpv_pos, right, 0.5f, tpv_pos );
 236    }
 237 #endif
 238
 239    /*
 240     * Blend cameras
 241     */
 242    v3_lerp( tpv_pos, fpv_pos, cc->camera_type_blend, localplayer.cam.pos );
 243    v3_copy( localplayer.angles, localplayer.cam.angles );
 244
 245    /* Camera shake */
 246    f32 speed = v3_length(localplayer.rb.v),
 247        strength = k_cam_shake_strength * speed;
 248    localplayer.cam_trackshake +=
 249       speed*k_cam_shake_trackspeed*vg.time_frame_delta;
 250
 251    v2f rnd = {vg_perlin_fract_1d( localplayer.cam_trackshake, 1.0f, 4, 20 ),
 252               vg_perlin_fract_1d( localplayer.cam_trackshake, 1.0f, 4, 63 ) };
 253    v2_muladds( localplayer.cam.angles, rnd, strength, localplayer.cam.angles );
 254
 255    v3f Fd, Fs, F;
 256    v3_muls( localplayer.cam_land_punch_v, -k_cam_damp, Fd );
 257    v3_muls( localplayer.cam_land_punch, -k_cam_spring, Fs );
 258    v3_muladds( localplayer.cam_land_punch, localplayer.cam_land_punch_v,
 259                vg.time_frame_delta, localplayer.cam_land_punch );
 260    v3_add( Fd, Fs, F );
 261    v3_muladds( localplayer.cam_land_punch_v, F, vg.time_frame_delta,
 262                localplayer.cam_land_punch_v );
 263    v3_add( localplayer.cam_land_punch, localplayer.cam.pos,
 264            localplayer.cam.pos );
 265
 266    /* portal transitions */
 267    player_camera_portal_correction();
 268 }
 269
 270 void player_look( v3f angles, float speed )
 271 {
 272    if( vg_ui.wants_mouse ) return;
 273
 274    angles[2] = 0.0f;
 275
 276    v2f mouse_input;
 277    v2_copy( vg.mouse_delta, mouse_input );
 278    if( k_invert_y ) mouse_input[1] *= -1.0f;
 279    v2_muladds( angles, mouse_input, 0.0025f * speed, angles );
 280
 281    v2f jlook;
 282    joystick_state( k_srjoystick_look, jlook );
 283
 284    angles[0] += jlook[0] * vg.time_frame_delta * 4.0f * speed;
 285    float input_y = jlook[1] * vg.time_frame_delta * 4.0f;
 286    if( k_invert_y ) input_y *= -1.0f;
 287
 288    angles[1] += input_y * speed;
 289    angles[1] = vg_clampf( angles[1], -VG_PIf*0.5f, VG_PIf*0.5f );
 290 }