player_skate.h

   1 #ifndef PLAYER_SKATE_H
   2 #define PLAYER_SKATE_H
   3
   4 #include "player.h"
   5 #include "player_api.h"
   6
   7 typedef struct jump_info jump_info;
   8
   9 struct player_skate{
  10    struct player_skate_state{
  11       enum skate_activity{
  12          k_skate_activity_air,
  13          k_skate_activity_air_to_grind,
  14          k_skate_activity_ground,
  15          k_skate_activity_handplant,
  16          k_skate_activity_undefined,
  17          k_skate_activity_grind_any,
  18          k_skate_activity_grind_boardslide,
  19          k_skate_activity_grind_metallic,
  20          k_skate_activity_grind_back50,
  21          k_skate_activity_grind_front50,
  22          k_skate_activity_grind_5050
  23       }
  24       activity,
  25       activity_prev;
  26
  27       u32 grind_cooldown,
  28           surface_cooldown;
  29
  30       f32 reverse, slip, delayed_slip_dir;
  31       int manual_direction;
  32
  33       /* tricks */
  34       v3f   flip_axis;
  35       float flip_time,
  36             flip_rate;
  37
  38       v3f   trick_vel,     /* measured in units of TAU/s */
  39             trick_euler;   /* measured in units of TAU */
  40       v3f trick_residualv, /* spring */
  41           trick_residuald;
  42
  43       float trick_time;
  44       enum  trick_type{
  45          k_trick_type_none,
  46          k_trick_type_kickflip,
  47          k_trick_type_shuvit,
  48          k_trick_type_treflip,
  49       }
  50       trick_type;
  51       float gravity_bias;
  52
  53       f32 trick_input_collect;
  54
  55       v3f up_dir;
  56       v3f head_position;
  57
  58       v3f throw_v;
  59       v3f cog_v, cog;
  60
  61       float grabbing;
  62       v2f grab_mouse_delta;
  63
  64       int charging_jump, jump_dir;
  65       float jump_charge,
  66             slap;
  67
  68       double jump_time;
  69       double start_push,
  70              cur_push;
  71
  72       v3f prev_pos;
  73
  74       /* initial launch conditions */
  75       double air_start;
  76       v3f    air_init_v,
  77              air_init_co;
  78
  79       float land_dist;
  80       v3f land_normal;
  81       v4f smoothed_rotation;
  82
  83       f32 velocity_limit, grind_y_start, skid;
  84       f32 handplant_t;
  85
  86       v3f store_cog_v, store_cog, store_co;
  87       v4f store_smoothed, store_q;
  88    }
  89    state;
  90
  91    struct player_skate_animator {
  92       v3f root_co;
  93       v4f root_q;
  94       v3f root_v;
  95
  96       v3f offset,
  97           local_cog;
  98
  99       f32 slide,
 100           skid,
 101           z,
 102           x,
 103           fly,
 104           grind,
 105           grind_balance,
 106           stand,
 107           push,
 108           jump,
 109           airdir,
 110           weight,
 111           trick_foot,
 112           slap,
 113           subslap,
 114           reverse,
 115           delayed_slip_dir,
 116           grabbing;
 117
 118       v2f wobble;
 119       f32 foot_offset[2];
 120
 121       v4f qfixuptotal;
 122       v4f qflip;
 123
 124       v3f board_euler;
 125       f32 board_lean;
 126       v2f steer, grab;
 127
 128       f32 jump_charge;
 129
 130       /* linear anims. TODO: we can union a bunch of variables here depending
 131        * on activity. */
 132       f32 push_time, jump_time, handplant_t;
 133       u8 jump_dir;
 134       u8 trick_type;
 135       u8 activity;
 136    }
 137    animator;
 138
 139    /* animation /audio
 140     * --------------------------------------------------------------*/
 141    struct skeleton_anim *anim_stand, *anim_highg, *anim_slide,
 142                         *anim_air, *anim_grind, *anim_grind_jump,
 143                         *anim_push,  *anim_push_reverse,
 144                         *anim_ollie, *anim_ollie_reverse,
 145                         *anim_grabs, *anim_stop,
 146                         *anim_handplant;
 147
 148    /* vectors representing the direction of the axels in localspace */
 149    v3f truckv0[2];
 150
 151    audio_channel *aud_main, *aud_slide, *aud_air;
 152    enum mdl_surface_prop surface, audio_surface;
 153
 154    int wheel_contacts[2];
 155    float sample_change_cooldown;
 156
 157    enum {
 158       k_skate_sample_concrete,
 159       k_skate_sample_wood,
 160       k_skate_sample_concrete_scrape_metal,
 161       k_skate_sample_concrete_scrape_wood,
 162       k_skate_sample_metal_scrape_generic
 163    }
 164    main_sample_type;
 165
 166    /*
 167     * Physics
 168     * ----------------------------------------------------
 169     */
 170
 171    float substep, substep_delta;
 172
 173    struct jump_info{
 174       v3f   log[50];
 175       v3f   n;
 176       v3f   apex;
 177       v3f   v;
 178
 179       float gravity;
 180
 181       int   log_length;
 182       float score,
 183             land_dist;
 184
 185       enum prediction_type{
 186          k_prediction_none,
 187          k_prediction_unset,
 188          k_prediction_land,
 189          k_prediction_grind
 190       }
 191       type;
 192
 193       u32   colour;
 194    }
 195    possible_jumps[36];
 196    u32 possible_jump_count;
 197
 198    v3f surface_picture,
 199        weight_distribution,
 200        grind_vec,
 201        grind_dir;
 202
 203    float grind_strength;
 204    struct grind_limit{
 205       v3f ra, n;
 206       float p;
 207    }
 208    limits[3];
 209    u32 limit_count;
 210 }
 211 static player_skate;
 212
 213 enum player_skate_soundeffect {
 214    k_player_skate_soundeffect_jump,
 215    k_player_skate_soundeffect_tap,
 216    k_player_skate_soundeffect_land_good,
 217    k_player_skate_soundeffect_land_bad,
 218    k_player_skate_soundeffect_grind_metal,
 219    k_player_skate_soundeffect_grind_wood,
 220 };
 221
 222 static float
 223    k_friction_lat          = 12.0f,
 224    k_friction_resistance   = 0.01f,
 225
 226    k_max_push_speed        = 16.0f,
 227    k_push_accel            = 10.0f,
 228    k_push_cycle_rate       = 8.0f,
 229
 230    k_steer_ground          = 2.5f,
 231    k_steer_air             = 3.6f,
 232
 233    k_jump_charge_speed     = (1.0f/0.4f),
 234    k_jump_force            = 5.0f,
 235
 236    k_cog_spring            = 0.2f,
 237    k_cog_damp              = 0.02f,
 238    k_cog_mass_ratio        = 0.9f,
 239
 240    k_mmthrow_steer         = 1.0f,
 241    k_mmthrow_scale         = 6.0f,
 242    k_mmcollect_lat         = 2.0f,
 243    k_mmcollect_vert        = 0.0f,
 244    k_mmdecay               = 12.0f,
 245    k_spring_angular        = 1.0f,
 246
 247    k_spring_force          = 300.0f,
 248    k_spring_dampener       = 5.0f,
 249
 250    k_grind_spring          = 50.0f,
 251    k_grind_aligment        = 10.0f,
 252    k_grind_dampener        = 5.0f,
 253
 254    k_surface_spring        = 100.0f,
 255    k_surface_dampener      = 40.0f,
 256    k_manul_spring          = 200.0f,
 257    k_manul_dampener        = 30.0f,
 258    k_board_interia         = 8.0f,
 259
 260    k_grind_decayxy         = 30.0f,
 261    k_grind_axel_min_vel    = 1.0f,
 262    k_grind_axel_max_angle  = 0.95f, /* cosine(|a|) */
 263    k_grind_axel_max_vangle = 0.4f,
 264    k_grind_max_friction    = 3.0f,
 265    k_grind_max_edge_angle  = 0.97f,
 266
 267    k_board_length          = 0.45f,
 268    k_board_width           = 0.13f,
 269    k_board_end_radius      = 0.1f,
 270    k_board_radius          = 0.14f,    /* 0.07 */
 271
 272    k_grind_balance         = -40.0f,
 273    k_anim_transition       = 0.12f;
 274
 275 static void player__skate_register(void){
 276    VG_VAR_F32( k_grind_dampener,       flags=VG_VAR_CHEAT );
 277    VG_VAR_F32( k_grind_spring,         flags=VG_VAR_CHEAT );
 278    VG_VAR_F32( k_grind_aligment,       flags=VG_VAR_CHEAT );
 279    VG_VAR_F32( k_surface_spring,       flags=VG_VAR_CHEAT );
 280    VG_VAR_F32( k_surface_dampener,     flags=VG_VAR_CHEAT );
 281    VG_VAR_F32( k_board_interia,        flags=VG_VAR_CHEAT );
 282    VG_VAR_F32( k_grind_decayxy,        flags=VG_VAR_CHEAT );
 283    VG_VAR_F32( k_grind_axel_min_vel,   flags=VG_VAR_CHEAT );
 284    VG_VAR_F32( k_grind_axel_max_angle, flags=VG_VAR_CHEAT );
 285    VG_VAR_F32( k_grind_max_friction,   flags=VG_VAR_CHEAT );
 286    VG_VAR_F32( k_grind_balance,        flags=VG_VAR_CHEAT );
 287    VG_VAR_F32( k_friction_lat,         flags=VG_VAR_CHEAT );
 288
 289    VG_VAR_F32( k_cog_spring,           flags=VG_VAR_CHEAT );
 290    VG_VAR_F32( k_cog_damp,             flags=VG_VAR_CHEAT );
 291    VG_VAR_F32( k_cog_mass_ratio,       flags=VG_VAR_CHEAT );
 292
 293    VG_VAR_F32( k_spring_force,         flags=VG_VAR_CHEAT );
 294    VG_VAR_F32( k_spring_dampener,      flags=VG_VAR_CHEAT );
 295    VG_VAR_F32( k_spring_angular,       flags=VG_VAR_CHEAT );
 296
 297    VG_VAR_F32( k_mmthrow_scale,        flags=VG_VAR_CHEAT );
 298    VG_VAR_F32( k_mmcollect_lat,        flags=VG_VAR_CHEAT );
 299    VG_VAR_F32( k_mmcollect_vert,       flags=VG_VAR_CHEAT );
 300    VG_VAR_F32( k_mmdecay,              flags=VG_VAR_CHEAT );
 301    VG_VAR_F32( k_mmthrow_steer,        flags=VG_VAR_CHEAT );
 302    VG_VAR_F32( k_anim_transition,      flags=VG_VAR_CHEAT );
 303 }
 304
 305 static void player__skate_bind         (void);
 306 static void player__skate_pre_update   (void);
 307 static void player__skate_update       (void);
 308 static void player__skate_post_update  (void);
 309 static void player__skate_im_gui       (void);
 310 static void player__skate_animate      (void);
 311 static void player__skate_pose         (void *animator, player_pose *pose);
 312 static void player__skate_effects( void *_animator, m4x3f *final_mtx,
 313                                    struct player_board *board,
 314                                    struct player_effects_data *effect_data );
 315 static void player__skate_post_animate (void);
 316 static void player__skate_animator_exchange( bitpack_ctx *ctx, void *data );
 317 static void player__skate_sfx_oneshot  ( u8 id, v3f pos, f32 volume );
 318
 319 static void player__skate_clear_mechanics(void);
 320 static void player__skate_reset_animator(void);
 321 static void player__approximate_best_trajectory(void);
 322
 323 struct player_subsystem_interface static player_subsystem_skate = {
 324    .system_register = player__skate_register,
 325    .bind = player__skate_bind,
 326    .pre_update = player__skate_pre_update,
 327    .update = player__skate_update,
 328    .post_update = player__skate_post_update,
 329    .im_gui = player__skate_im_gui,
 330    .animate = player__skate_animate,
 331    .pose = player__skate_pose,
 332    .effects = player__skate_effects,
 333    .post_animate = player__skate_post_animate,
 334    .network_animator_exchange = player__skate_animator_exchange,
 335    .sfx_oneshot = player__skate_sfx_oneshot,
 336
 337    .animator_data = &player_skate.animator,
 338    .animator_size = sizeof(player_skate.animator),
 339    .name = "Skate"
 340 };
 341
 342 #endif /* PLAYER_SKATE_H */