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             = 7.0f,  /* no longer used */
  16    k_runspeed              = 14.0f,
  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_jump_charge_speed     = (1.0f/1.0f),
  31    k_jump_force            = 5.0f,
  32    k_pitch_limit           = 1.5f,
  33    k_look_speed            = 2.0f,
  34    k_walk_accel            = 5.0f,
  35    k_walk_friction         = 8.0f;
  36
  37 static int freecam = 0;
  38 static int walk_grid_iterations = 1;
  39 static float fc_speed = 10.0f;
  40
  41 /*
  42  * -----------------------------------------------------------------------------
  43  *                                  Memory
  44  * -----------------------------------------------------------------------------
  45  */
  46
  47 static struct gplayer
  48 {
  49    /* Physics */
  50    rigidbody collide_front, collide_back;
  51
  52    struct player_phys
  53    {
  54       rigidbody rb, rb_gate_frame;
  55       float iY, siY;   /* Yaw inertia */
  56
  57       v3f a, v_last, m, bob, vl;
  58
  59       /* Utility */
  60       float vswitch, slip, slip_last,
  61             reverse;
  62
  63       float grab, jump, pushing, push_time;
  64       double start_push;
  65       int in_air, on_board, jump_charge, jump_dir;
  66
  67       m3x3f vr,vr_pstep;
  68    }
  69    phys,
  70    phys_gate_frame;
  71
  72    int is_dead;
  73
  74    v3f land_target;
  75    v3f land_target_log[22];
  76    u32 land_target_colours[22];
  77    int land_log_count;
  78
  79    v3f handl_target, handr_target,
  80        handl, handr;
  81
  82    /* Camera */
  83    float air_blend;
  84
  85    v3f camera_pos, smooth_localcam;
  86    v2f angles;
  87    m4x3f camera, camera_inverse;
  88
  89    /* animation */
  90    double jump_time;
  91    float fslide,
  92          fdirz, fdirx,
  93          fstand,
  94          ffly,
  95          fpush,
  96          fairdir,
  97          fsetup,
  98          walk_timer,
  99          fjump,
 100          fonboard;
 101
 102    int step_phase;
 103
 104    /* player model */
 105    struct player_model
 106    {
 107       glmesh mesh;
 108       struct skeleton sk;
 109       struct skeleton_anim *anim_stand,
 110                            *anim_highg,
 111                            *anim_slide,
 112                            *anim_air,
 113                            *anim_push, *anim_push_reverse,
 114                            *anim_ollie, *anim_ollie_reverse,
 115                            *anim_grabs, *anim_stop,
 116                            *anim_walk, *anim_run, *anim_idle;
 117
 118       u32 id_hip,
 119           id_ik_hand_l,
 120           id_ik_hand_r,
 121           id_ik_elbow_l,
 122           id_ik_elbow_r,
 123           id_head;
 124
 125       v3f cam_pos;
 126
 127       struct ragdoll_part
 128       {
 129          u32 bone_id;
 130          v3f offset;
 131
 132          u32 use_limits;
 133          v3f limits[2];
 134
 135          rigidbody  rb;
 136          u32 parent;
 137       }
 138       *ragdoll;
 139       u32 ragdoll_count;
 140
 141       int shoes[2];
 142    }
 143    mdl;
 144 }
 145 player =
 146 {
 147    .collide_front = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f },
 148    .collide_back  = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f }
 149 };
 150
 151 /*
 152  * API
 153  */
 154 static float *player_get_pos(void);
 155 static void player_kill(void);
 156 static float *player_cam_pos(void);
 157 static void player_save_frame(void);
 158 static void player_restore_frame(void);
 159
 160 /*
 161  * Submodules
 162  */
 163 #include "player_physics.h"
 164 #include "player_ragdoll.h"
 165 #include "player_model.h"
 166 #include "player_animation.h"
 167 #include "player_audio.h"
 168
 169 /*
 170  * -----------------------------------------------------------------------------
 171  *                                    Events
 172  * -----------------------------------------------------------------------------
 173  */
 174
 175 static void player_init(void)                                            /* 1 */
 176 {
 177    rb_init( &player.phys.rb );
 178    rb_init( &player.collide_front );
 179    rb_init( &player.collide_back  );
 180
 181    vg_convar_push( (struct vg_convar){
 182       .name = "walk_speed",
 183       .data = &k_walkspeed,
 184       .data_type = k_convar_dtype_f32,
 185       .opt_f32 = { .clamp = 0 },
 186       .persistent = 1
 187    });
 188
 189    vg_convar_push( (struct vg_convar){
 190       .name = "run_speed",
 191       .data = &k_runspeed,
 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 = "walk_accel",
 199       .data = &k_walk_accel,
 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 = "fc",
 207       .data = &freecam,
 208       .data_type = k_convar_dtype_i32,
 209       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 210       .persistent = 1
 211    });
 212
 213    vg_convar_push( (struct vg_convar){
 214       .name = "fcs",
 215       .data = &fc_speed,
 216       .data_type = k_convar_dtype_f32,
 217       .opt_f32 = { .clamp = 0 },
 218       .persistent = 1
 219    });
 220
 221         vg_function_push( (struct vg_cmd){
 222                 .name = "reset",
 223                 .function = reset_player
 224         });
 225
 226    /* other systems */
 227    vg_loader_highwater( player_model_init, player_model_free, NULL );
 228 }
 229
 230 /* Deal with input etc */
 231 static void player_update_pre(void)
 232 {
 233    struct player_phys *phys = &player.phys;
 234
 235    if( vg_get_axis("grabl")>0.0f)
 236    {
 237       player.is_dead = 0;
 238       player_restore_frame();
 239
 240       if( !phys->on_board )
 241       {
 242          player.angles[0] = atan2f( -phys->rb.forward[2],
 243                                     -phys->rb.forward[0] );
 244       }
 245
 246       player.mdl.shoes[0] = 1;
 247       player.mdl.shoes[1] = 1;
 248
 249       world_routes_notify_reset();
 250    }
 251
 252    if( vg_get_button_down( "switchmode" ) )
 253    {
 254       phys->on_board ^= 0x1;
 255    }
 256 }
 257
 258 static void player_update_fixed(void)                                    /* 2 */
 259 {
 260    struct player_phys *phys = &player.phys;
 261
 262    if( player.is_dead )
 263    {
 264       player_ragdoll_iter();
 265    }
 266    else
 267    {
 268       player_do_motion();
 269    }
 270
 271    player_audio(); /* FUTURE: can probably move this to post()
 272                               BUT, it uses deltas from fixed step physics,
 273                               AND this *might* be what we want for realtime
 274                               audio, anyway. */
 275 }
 276
 277 static void player_update_post(void)
 278 {
 279    for( int i=0; i<player.land_log_count; i++ )
 280       vg_line_cross( player.land_target_log[i],
 281             player.land_target_colours[i], 0.25f);
 282
 283    if( player.is_dead )
 284    {
 285       player_debug_ragdoll();
 286
 287       if( !freecam )
 288          player_animate_death_cam();
 289    }
 290    else
 291    {
 292       player_animate();
 293
 294       if( !freecam )
 295          player_animate_camera();
 296    }
 297
 298    if( freecam )
 299       player_freecam();
 300
 301    player_camera_update();
 302 }
 303
 304 static void draw_player(void)                                            /* 3 */
 305 {
 306    if( player.is_dead )
 307       player_model_copy_ragdoll();
 308
 309    shader_viewchar_use();
 310    vg_tex2d_bind( &tex_characters, 0 );
 311    shader_viewchar_uTexMain( 0 );
 312    shader_viewchar_uCamera( player.camera[3] );
 313    shader_viewchar_uPv( vg.pv );
 314    shader_link_standard_ub( _shader_viewchar.id, 2 );
 315    glUniformMatrix4x3fv( _uniform_viewchar_uTransforms,
 316                          player.mdl.sk.bone_count,
 317                          0,
 318                          (float *)player.mdl.sk.final_mtx );
 319
 320    mesh_bind( &player.mdl.mesh );
 321    mesh_draw( &player.mdl.mesh );
 322 }
 323
 324 /*
 325  * -----------------------------------------------------------------------------
 326  *                              API implementation
 327  * -----------------------------------------------------------------------------
 328  */
 329
 330 static float *player_get_pos(void)
 331 {
 332    return player.phys.rb.co;
 333 }
 334
 335 static void player_kill(void)
 336 {
 337    player.is_dead = 1;
 338    player_ragdoll_copy_model( player.phys.rb.v );
 339 }
 340
 341 static float *player_cam_pos(void)
 342 {
 343    return player.camera_pos;
 344 }
 345
 346
 347 #endif /* PLAYER_H */