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