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_lat          = 12.0f,
  22    k_friction_resistance   = 0.01f,
  23    k_max_push_speed        = 16.0f,
  24    k_push_accel            = 10.0f,
  25    k_push_cycle_rate       = 8.0f,
  26    k_steer_ground          = 2.5f,
  27    k_steer_air             = 3.6f,
  28    k_steer_air_lerp        = 0.3f,
  29    k_pump_force            = 0.0f,
  30    k_downforce             = 5.0f,
  31    k_walk_downforce        = 8.0f,
  32    k_jump_charge_speed     = (1.0f/1.0f),
  33    k_jump_force            = 5.0f,
  34    k_pitch_limit           = 1.5f,
  35    k_look_speed            = 2.0f,
  36    k_walk_accel            = 150.0f,
  37    k_walk_friction         = 8.0f;
  38
  39 static int freecam = 0;
  40 static int walk_grid_iterations = 1;
  41 static float fc_speed = 10.0f;
  42
  43 /*
  44  * -----------------------------------------------------------------------------
  45  *                                  Memory
  46  * -----------------------------------------------------------------------------
  47  */
  48
  49 static struct gplayer
  50 {
  51    /* Physics */
  52    rigidbody collide_front, collide_back;
  53
  54    struct player_phys
  55    {
  56       rigidbody rb, rb_gate_frame;
  57       float iY, siY;   /* Yaw inertia */
  58
  59       v3f a, v_last, m, bob, vl;
  60
  61       /* Utility */
  62       float vswitch, slip, slip_last,
  63             reverse;
  64
  65       float grab, jump, pushing, push_time;
  66       double start_push;
  67       int in_air, on_board, jump_charge, jump_dir;
  68
  69       m3x3f vr,vr_pstep;
  70    }
  71    phys,
  72    phys_gate_frame;
  73
  74    m4x3f visual_transform,
  75          inv_visual_transform;
  76
  77    int is_dead, death_tick_allowance;
  78
  79    v3f land_target;
  80    v3f land_target_log[22];
  81    u32 land_target_colours[22];
  82    int land_log_count;
  83
  84    v3f handl_target, handr_target,
  85        handl, handr;
  86
  87    /* Camera */
  88    float air_blend;
  89
  90    v3f camera_pos, smooth_localcam;
  91    v2f angles;
  92    m4x3f camera, camera_inverse;
  93
  94    /* animation */
  95    double jump_time;
  96    float fslide,
  97          fdirz, fdirx,
  98          fstand,
  99          ffly,
 100          fpush,
 101          fairdir,
 102          fsetup,
 103          walk_timer,
 104          fjump,
 105          fonboard,
 106          frun;
 107
 108    float walk;
 109    int step_phase;
 110
 111    /* player model */
 112    struct player_model
 113    {
 114       glmesh mesh;
 115       struct skeleton sk;
 116       struct skeleton_anim *anim_stand,
 117                            *anim_highg,
 118                            *anim_slide,
 119                            *anim_air,
 120                            *anim_push, *anim_push_reverse,
 121                            *anim_ollie, *anim_ollie_reverse,
 122                            *anim_grabs, *anim_stop,
 123                            *anim_walk, *anim_run, *anim_idle,
 124                            *anim_jump;
 125
 126       u32 id_hip,
 127           id_ik_hand_l,
 128           id_ik_hand_r,
 129           id_ik_elbow_l,
 130           id_ik_elbow_r,
 131           id_head;
 132
 133       v3f cam_pos;
 134
 135       struct ragdoll_part
 136       {
 137          u32 bone_id;
 138          v3f offset;
 139
 140          u32 use_limits;
 141          v3f limits[2];
 142
 143          rigidbody  rb;
 144          u32 parent;
 145       }
 146       *ragdoll;
 147       u32 ragdoll_count;
 148
 149       int shoes[2];
 150    }
 151    mdl;
 152 }
 153 player =
 154 {
 155    .collide_front = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f },
 156    .collide_back  = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f }
 157 };
 158
 159 /*
 160  * API
 161  */
 162 static float *player_get_pos(void);
 163 static void player_kill(void);
 164 static float *player_cam_pos(void);
 165 static void player_save_frame(void);
 166 static void player_restore_frame(void);
 167
 168 /*
 169  * Submodules
 170  */
 171 #include "player_physics.h"
 172 #include "player_ragdoll.h"
 173 #include "player_model.h"
 174 #include "player_animation.h"
 175 #include "player_audio.h"
 176
 177 /*
 178  * -----------------------------------------------------------------------------
 179  *                                    Events
 180  * -----------------------------------------------------------------------------
 181  */
 182
 183 static void player_init(void)                                            /* 1 */
 184 {
 185    rb_init( &player.phys.rb );
 186    rb_init( &player.collide_front );
 187    rb_init( &player.collide_back  );
 188
 189    vg_convar_push( (struct vg_convar){
 190       .name = "walk_speed",
 191       .data = &k_walkspeed,
 192       .data_type = k_convar_dtype_f32,
 193       .opt_f32 = { .clamp = 0 },
 194       .persistent = 1
 195    });
 196
 197    vg_convar_push( (struct vg_convar){
 198       .name = "run_speed",
 199       .data = &k_runspeed,
 200       .data_type = k_convar_dtype_f32,
 201       .opt_f32 = { .clamp = 0 },
 202       .persistent = 1
 203    });
 204
 205    vg_convar_push( (struct vg_convar){
 206       .name = "walk_accel",
 207       .data = &k_walk_accel,
 208       .data_type = k_convar_dtype_f32,
 209       .opt_f32 = { .clamp = 0 },
 210       .persistent = 1
 211    });
 212
 213    vg_convar_push( (struct vg_convar){
 214       .name = "fc",
 215       .data = &freecam,
 216       .data_type = k_convar_dtype_i32,
 217       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 218       .persistent = 1
 219    });
 220
 221    vg_convar_push( (struct vg_convar){
 222       .name = "fcs",
 223       .data = &fc_speed,
 224       .data_type = k_convar_dtype_f32,
 225       .opt_f32 = { .clamp = 0 },
 226       .persistent = 1
 227    });
 228
 229         vg_function_push( (struct vg_cmd){
 230                 .name = "reset",
 231                 .function = reset_player
 232         });
 233
 234    /* other systems */
 235    vg_loader_highwater( player_model_init, player_model_free, NULL );
 236 }
 237
 238 /* Deal with input etc */
 239 static void player_update_pre(void)
 240 {
 241    struct player_phys *phys = &player.phys;
 242
 243    if( vg_get_button_down( "reset" ) )
 244    {
 245       player.is_dead = 0;
 246       player.death_tick_allowance = 30;
 247       player_restore_frame();
 248
 249       if( !phys->on_board )
 250       {
 251          player.angles[0] = atan2f( -phys->rb.forward[2],
 252                                     -phys->rb.forward[0] );
 253       }
 254
 255       player.mdl.shoes[0] = 1;
 256       player.mdl.shoes[1] = 1;
 257
 258       world_routes_notify_reset();
 259    }
 260
 261    if( vg_get_button_down( "switchmode" ) )
 262    {
 263       phys->on_board ^= 0x1;
 264
 265       if( phys->on_board )
 266       {
 267          v3_muladds( phys->rb.v, phys->rb.forward, 0.2f, phys->rb.v );
 268       }
 269    }
 270 }
 271
 272 static void player_update_fixed(void)                                    /* 2 */
 273 {
 274    if( player.death_tick_allowance )
 275       player.death_tick_allowance --;
 276
 277    struct player_phys *phys = &player.phys;
 278
 279    if( player.is_dead )
 280    {
 281       player_ragdoll_iter();
 282    }
 283    else
 284    {
 285       player_do_motion();
 286    }
 287
 288    player_audio(); /* FUTURE: can probably move this to post()
 289                               BUT, it uses deltas from fixed step physics,
 290                               AND this *might* be what we want for realtime
 291                               audio, anyway. */
 292 }
 293
 294 static void player_update_post(void)
 295 {
 296    for( int i=0; i<player.land_log_count; i++ )
 297       vg_line_cross( player.land_target_log[i],
 298             player.land_target_colours[i], 0.25f);
 299
 300    if( player.is_dead )
 301    {
 302       player_debug_ragdoll();
 303
 304       if( !freecam )
 305          player_animate_death_cam();
 306    }
 307    else
 308    {
 309       player_animate();
 310
 311       if( !freecam )
 312          player_animate_camera();
 313    }
 314
 315    if( freecam )
 316       player_freecam();
 317
 318    player_camera_update();
 319 }
 320
 321 static void draw_player( m4x3f cam )
 322 {
 323    if( player.is_dead )
 324       player_model_copy_ragdoll();
 325
 326    shader_viewchar_use();
 327    vg_tex2d_bind( &tex_characters, 0 );
 328    shader_viewchar_uTexMain( 0 );
 329    shader_viewchar_uCamera( cam[3] );
 330    shader_viewchar_uPv( vg.pv );
 331    shader_link_standard_ub( _shader_viewchar.id, 2 );
 332    glUniformMatrix4x3fv( _uniform_viewchar_uTransforms,
 333                          player.mdl.sk.bone_count,
 334                          0,
 335                          (float *)player.mdl.sk.final_mtx );
 336
 337    mesh_bind( &player.mdl.mesh );
 338    mesh_draw( &player.mdl.mesh );
 339 }
 340
 341 /*
 342  * -----------------------------------------------------------------------------
 343  *                              API implementation
 344  * -----------------------------------------------------------------------------
 345  */
 346
 347 static float *player_get_pos(void)
 348 {
 349    return player.phys.rb.co;
 350 }
 351
 352 static void player_kill(void)
 353 {
 354    if( player.death_tick_allowance == 0 )
 355    {
 356       player.is_dead = 1;
 357       player_ragdoll_copy_model( player.phys.rb.v );
 358    }
 359 }
 360
 361 static float *player_cam_pos(void)
 362 {
 363    return player.camera_pos;
 364 }
 365
 366
 367 #endif /* PLAYER_H */