player.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef PLAYER_H
   6 #define PLAYER_H
   7
   8 #include "audio.h"
   9 #include "common.h"
  10 #include "world.h"
  11 #include "skeleton.h"
  12 #include "bvh.h"
  13
  14 static float
  15    k_walkspeed             = 20.0f,  /* no longer used */
  16    k_runspeed              = 20.0f,
  17    k_board_radius          = 0.3f,
  18    k_board_length          = 0.45f,
  19    k_board_allowance       = 0.04f,
  20    k_friction_lat          = 8.8f,
  21    k_friction_resistance   = 0.01f,
  22    k_max_push_speed        = 16.0f,
  23    k_push_accel            = 10.0f,
  24    k_push_cycle_rate       = 8.0f,
  25    k_steer_ground          = 2.5f,
  26    k_steer_air             = 3.6f,
  27    k_steer_air_lerp        = 0.3f,
  28    k_pump_force            = 0.0f,
  29    k_downforce             = 5.0f,
  30    k_walk_downforce        = 8.0f,
  31    k_jump_charge_speed     = (1.0f/1.0f),
  32    k_jump_force            = 5.0f,
  33    k_pitch_limit           = 1.5f,
  34    k_look_speed            = 2.0f,
  35    k_walk_accel            = 150.0f,
  36    k_walk_friction         = 8.0f;
  37
  38 static int freecam = 0;
  39 static int walk_grid_iterations = 1;
  40 static float fc_speed = 10.0f;
  41
  42 /*
  43  * -----------------------------------------------------------------------------
  44  *                                  Memory
  45  * -----------------------------------------------------------------------------
  46  */
  47
  48 static struct gplayer
  49 {
  50    /* Physics */
  51    rigidbody collide_front, collide_back;
  52
  53    struct player_phys
  54    {
  55       rigidbody rb, rb_gate_frame;
  56       float iY, siY;   /* Yaw inertia */
  57
  58       v3f a, v_last, m, bob, vl;
  59
  60       /* Utility */
  61       float vswitch, slip, slip_last,
  62             reverse;
  63
  64       float grab, jump, pushing, push_time;
  65       double start_push;
  66       int in_air, on_board, jump_charge, jump_dir;
  67
  68       m3x3f vr,vr_pstep;
  69    }
  70    phys,
  71    phys_gate_frame;
  72
  73    m4x3f visual_transform,
  74          inv_visual_transform;
  75
  76    int is_dead, death_tick_allowance;
  77
  78    v3f land_target;
  79    v3f land_target_log[22];
  80    u32 land_target_colours[22];
  81    int land_log_count;
  82
  83    v3f handl_target, handr_target,
  84        handl, handr;
  85
  86    /* Camera */
  87    float air_blend;
  88
  89    v3f camera_pos, smooth_localcam;
  90    v2f angles;
  91    m4x3f camera, camera_inverse;
  92
  93    /* animation */
  94    double jump_time;
  95    float fslide,
  96          fdirz, fdirx,
  97          fstand,
  98          ffly,
  99          fpush,
 100          fairdir,
 101          fsetup,
 102          walk_timer,
 103          fjump,
 104          fonboard,
 105          frun;
 106
 107    float walk;
 108    int step_phase;
 109
 110    /* player model */
 111    struct player_model
 112    {
 113       glmesh mesh;
 114       struct skeleton sk;
 115       struct skeleton_anim *anim_stand,
 116                            *anim_highg,
 117                            *anim_slide,
 118                            *anim_air,
 119                            *anim_push, *anim_push_reverse,
 120                            *anim_ollie, *anim_ollie_reverse,
 121                            *anim_grabs, *anim_stop,
 122                            *anim_walk, *anim_run, *anim_idle,
 123                            *anim_jump;
 124
 125       u32 id_hip,
 126           id_ik_hand_l,
 127           id_ik_hand_r,
 128           id_ik_elbow_l,
 129           id_ik_elbow_r,
 130           id_head;
 131
 132       v3f cam_pos;
 133
 134       struct ragdoll_part
 135       {
 136          u32 bone_id;
 137          v3f offset;
 138
 139          u32 use_limits;
 140          v3f limits[2];
 141
 142          rigidbody  rb;
 143          u32 parent;
 144       }
 145       *ragdoll;
 146       u32 ragdoll_count;
 147
 148       int shoes[2];
 149    }
 150    mdl;
 151 }
 152 player =
 153 {
 154    .collide_front = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f },
 155    .collide_back  = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f }
 156 };
 157
 158 /*
 159  * API
 160  */
 161 static float *player_get_pos(void);
 162 static void player_kill(void);
 163 static float *player_cam_pos(void);
 164 static void player_save_frame(void);
 165 static void player_restore_frame(void);
 166
 167 /*
 168  * Submodules
 169  */
 170 #include "player_physics.h"
 171 #include "player_ragdoll.h"
 172 #include "player_model.h"
 173 #include "player_animation.h"
 174 #include "player_audio.h"
 175
 176 /*
 177  * -----------------------------------------------------------------------------
 178  *                                    Events
 179  * -----------------------------------------------------------------------------
 180  */
 181
 182 static void player_init(void)                                            /* 1 */
 183 {
 184    rb_init( &player.phys.rb );
 185    rb_init( &player.collide_front );
 186    rb_init( &player.collide_back  );
 187
 188    vg_convar_push( (struct vg_convar){
 189       .name = "walk_speed",
 190       .data = &k_walkspeed,
 191       .data_type = k_convar_dtype_f32,
 192       .opt_f32 = { .clamp = 0 },
 193       .persistent = 1
 194    });
 195
 196    vg_convar_push( (struct vg_convar){
 197       .name = "run_speed",
 198       .data = &k_runspeed,
 199       .data_type = k_convar_dtype_f32,
 200       .opt_f32 = { .clamp = 0 },
 201       .persistent = 1
 202    });
 203
 204    vg_convar_push( (struct vg_convar){
 205       .name = "walk_accel",
 206       .data = &k_walk_accel,
 207       .data_type = k_convar_dtype_f32,
 208       .opt_f32 = { .clamp = 0 },
 209       .persistent = 1
 210    });
 211
 212    vg_convar_push( (struct vg_convar){
 213       .name = "fc",
 214       .data = &freecam,
 215       .data_type = k_convar_dtype_i32,
 216       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 217       .persistent = 1
 218    });
 219
 220    vg_convar_push( (struct vg_convar){
 221       .name = "fcs",
 222       .data = &fc_speed,
 223       .data_type = k_convar_dtype_f32,
 224       .opt_f32 = { .clamp = 0 },
 225       .persistent = 1
 226    });
 227
 228         vg_function_push( (struct vg_cmd){
 229                 .name = "reset",
 230                 .function = reset_player
 231         });
 232
 233    /* other systems */
 234    vg_loader_highwater( player_model_init, player_model_free, NULL );
 235 }
 236
 237 /* Deal with input etc */
 238 static void player_update_pre(void)
 239 {
 240    struct player_phys *phys = &player.phys;
 241
 242    if( vg_get_button_down( "reset" ) )
 243    {
 244       player.is_dead = 0;
 245       player.death_tick_allowance = 30;
 246       player_restore_frame();
 247
 248       if( !phys->on_board )
 249       {
 250          player.angles[0] = atan2f( -phys->rb.forward[2],
 251                                     -phys->rb.forward[0] );
 252       }
 253
 254       player.mdl.shoes[0] = 1;
 255       player.mdl.shoes[1] = 1;
 256
 257       world_routes_notify_reset();
 258    }
 259
 260    if( vg_get_button_down( "switchmode" ) )
 261    {
 262       phys->on_board ^= 0x1;
 263
 264       if( phys->on_board )
 265       {
 266          v3_muladds( phys->rb.v, phys->rb.forward, 0.2f, phys->rb.v );
 267       }
 268    }
 269 }
 270
 271 static void player_update_fixed(void)                                    /* 2 */
 272 {
 273    if( player.death_tick_allowance )
 274       player.death_tick_allowance --;
 275
 276    struct player_phys *phys = &player.phys;
 277
 278    if( player.is_dead )
 279    {
 280       player_ragdoll_iter();
 281    }
 282    else
 283    {
 284       player_do_motion();
 285    }
 286
 287    player_audio(); /* FUTURE: can probably move this to post()
 288                               BUT, it uses deltas from fixed step physics,
 289                               AND this *might* be what we want for realtime
 290                               audio, anyway. */
 291 }
 292
 293 static void player_update_post(void)
 294 {
 295    for( int i=0; i<player.land_log_count; i++ )
 296       vg_line_cross( player.land_target_log[i],
 297             player.land_target_colours[i], 0.25f);
 298
 299    if( player.is_dead )
 300    {
 301       player_debug_ragdoll();
 302
 303       if( !freecam )
 304          player_animate_death_cam();
 305    }
 306    else
 307    {
 308       player_animate();
 309
 310       if( !freecam )
 311          player_animate_camera();
 312    }
 313
 314    if( freecam )
 315       player_freecam();
 316
 317    player_camera_update();
 318 }
 319
 320 static void draw_player(void)                                            /* 3 */
 321 {
 322    if( player.is_dead )
 323       player_model_copy_ragdoll();
 324
 325    shader_viewchar_use();
 326    vg_tex2d_bind( &tex_characters, 0 );
 327    shader_viewchar_uTexMain( 0 );
 328    shader_viewchar_uCamera( player.camera[3] );
 329    shader_viewchar_uPv( vg.pv );
 330    shader_link_standard_ub( _shader_viewchar.id, 2 );
 331    glUniformMatrix4x3fv( _uniform_viewchar_uTransforms,
 332                          player.mdl.sk.bone_count,
 333                          0,
 334                          (float *)player.mdl.sk.final_mtx );
 335
 336    mesh_bind( &player.mdl.mesh );
 337    mesh_draw( &player.mdl.mesh );
 338 }
 339
 340 /*
 341  * -----------------------------------------------------------------------------
 342  *                              API implementation
 343  * -----------------------------------------------------------------------------
 344  */
 345
 346 static float *player_get_pos(void)
 347 {
 348    return player.phys.rb.co;
 349 }
 350
 351 static void player_kill(void)
 352 {
 353    if( player.death_tick_allowance == 0 )
 354    {
 355       player.is_dead = 1;
 356       player_ragdoll_copy_model( player.phys.rb.v );
 357    }
 358 }
 359
 360 static float *player_cam_pos(void)
 361 {
 362    return player.camera_pos;
 363 }
 364
 365
 366 #endif /* PLAYER_H */