player.h

   1 /*
   2  * Copyright 2021-2022 (C) Mount0 Software, Harry Godden - All Rights Reserved
   3  * -----------------------------------------------------------------------------
   4  *
   5  * Player head module
   6  *
   7  * -----------------------------------------------------------------------------
   8  */
   9
  10 #ifndef PLAYER_H
  11 #define PLAYER_H
  12
  13 #include "audio.h"
  14 #include "common.h"
  15 #include "world.h"
  16 #include "skeleton.h"
  17 #include "bvh.h"
  18
  19 static float
  20    k_walkspeed             = 7.0f,  /* no longer used */
  21    k_runspeed              = 14.0f,
  22    k_board_radius          = 0.3f,
  23    k_board_length          = 0.45f,
  24    k_board_allowance       = 0.04f,
  25    k_friction_lat          = 8.8f,
  26    k_friction_resistance   = 0.01f,
  27    k_max_push_speed        = 16.0f,
  28    k_push_accel            = 10.0f,
  29    k_push_cycle_rate       = 8.0f,
  30    k_steer_ground          = 2.5f,
  31    k_steer_air             = 3.6f,
  32    k_steer_air_lerp        = 0.3f,
  33    k_pump_force            = 0.0f,
  34    k_downforce             = 5.0f,
  35    k_jump_charge_speed     = (1.0f/1.0f),
  36    k_jump_force            = 5.0f,
  37    k_pitch_limit           = 1.5f,
  38    k_look_speed            = 2.0f,
  39    k_walk_accel            = 5.0f,
  40    k_walk_friction         = 8.0f;
  41
  42 static int freecam = 0;
  43 static int walk_grid_iterations = 1;
  44 static float fc_speed = 10.0f;
  45
  46 /*
  47  * -----------------------------------------------------------------------------
  48  *                                  Memory
  49  * -----------------------------------------------------------------------------
  50  */
  51
  52 static struct gplayer
  53 {
  54    /* Physics */
  55    rigidbody collide_front, collide_back;
  56
  57    struct player_phys
  58    {
  59       rigidbody rb, rb_gate_frame;
  60       float iY, siY;   /* Yaw inertia */
  61
  62       v3f a, v_last, m, bob, vl;
  63
  64       /* Utility */
  65       float vswitch, slip, slip_last,
  66             reverse;
  67
  68       float grab, jump;
  69       int in_air, on_board, jump_charge, jump_dir;
  70
  71       m3x3f vr,vr_pstep;
  72    }
  73    phys,
  74    phys_gate_frame;
  75
  76    float pushing, push_time;
  77    int is_dead;
  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
 107    int step_phase;
 108
 109    /* player model */
 110    struct player_model
 111    {
 112       glmesh mesh;
 113       struct skeleton sk;
 114       struct skeleton_anim *anim_stand,
 115                            *anim_highg,
 116                            *anim_slide,
 117                            *anim_air,
 118                            *anim_push, *anim_push_reverse,
 119                            *anim_ollie, *anim_ollie_reverse,
 120                            *anim_grabs, *anim_stop,
 121                            *anim_walk, *anim_run, *anim_idle;
 122
 123       u32 id_hip,
 124           id_ik_hand_l,
 125           id_ik_hand_r,
 126           id_ik_elbow_l,
 127           id_ik_elbow_r,
 128           id_head;
 129
 130       v3f cam_pos;
 131
 132       struct ragdoll_part
 133       {
 134          u32 bone_id;
 135          v3f offset;
 136
 137          u32 use_limits;
 138          v3f limits[2];
 139
 140          rigidbody  rb;
 141          u32 parent;
 142       }
 143       *ragdoll;
 144       u32 ragdoll_count;
 145
 146       int shoes[2];
 147    }
 148    mdl;
 149 }
 150 player =
 151 {
 152    .collide_front = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f },
 153    .collide_back  = { .type = k_rb_shape_sphere, .inf.sphere.radius = 0.3f }
 154 };
 155
 156 /*
 157  * API
 158  */
 159 static float *player_get_pos(void);
 160 static void player_kill(void);
 161 static float *player_cam_pos(void);
 162 static void player_save_frame(void);
 163 static void player_restore_frame(void);
 164
 165 /*
 166  * Submodules
 167  */
 168 #include "player_physics.h"
 169 #include "player_ragdoll.h"
 170 #include "player_model.h"
 171 #include "player_animation.h"
 172 #include "player_audio.h"
 173
 174 /*
 175  * -----------------------------------------------------------------------------
 176  *                                    Events
 177  * -----------------------------------------------------------------------------
 178  */
 179
 180 static void player_register(void)                                        /* 0 */
 181 {
 182    player_model_register();
 183 }
 184
 185 static void player_init(void)                                            /* 1 */
 186 {
 187    player_model_init();
 188
 189    rb_init( &player.collide_front );
 190    rb_init( &player.collide_back  );
 191 }
 192
 193 static void player_update(void)                                          /* 2 */
 194 {
 195    struct player_phys *phys = &player.phys;
 196
 197    for( int i=0; i<player.land_log_count; i++ )
 198       vg_line_cross( player.land_target_log[i],
 199             player.land_target_colours[i], 0.25f);
 200
 201    if( vg_get_axis("grabl")>0.0f)
 202    {
 203       player.is_dead = 0;
 204       player_restore_frame();
 205
 206       if( !phys->on_board )
 207       {
 208          player.angles[0] = atan2f( -phys->rb.forward[2],
 209                                     -phys->rb.forward[0] );
 210       }
 211
 212       player.mdl.shoes[0] = 1;
 213       player.mdl.shoes[1] = 1;
 214
 215       world_routes_notify_reset();
 216    }
 217
 218    if( vg_get_button_down( "switchmode" ) )
 219    {
 220       phys->on_board ^= 0x1;
 221    }
 222
 223    if( (glfwGetKey( vg_window, GLFW_KEY_O ) || (phys->rb.co[1] < 0.0f)) &&
 224        !player.is_dead)
 225    {
 226       player_ragdoll_copy_model( phys->rb.v );
 227       player.is_dead = 1;
 228    }
 229
 230    if( player.is_dead )
 231    {
 232       player_ragdoll_iter();
 233       player_debug_ragdoll();
 234
 235       if( !freecam )
 236          player_animate_death_cam();
 237    }
 238    else
 239    {
 240       player_do_motion();
 241       player_animate();
 242
 243       if( !freecam )
 244          player_animate_camera();
 245    }
 246
 247    if( freecam )
 248       player_freecam();
 249
 250    player_camera_update();
 251    player_audio();
 252 }
 253
 254 static void draw_player(void)                                            /* 3 */
 255 {
 256    if( player.is_dead )
 257       player_model_copy_ragdoll();
 258
 259    shader_viewchar_use();
 260    vg_tex2d_bind( &tex_characters, 0 );
 261    shader_viewchar_uTexMain( 0 );
 262    shader_viewchar_uCamera( player.camera[3] );
 263    shader_viewchar_uPv( vg_pv );
 264    shader_link_standard_ub( _shader_viewchar.id, 2 );
 265    glUniformMatrix4x3fv( _uniform_viewchar_uTransforms,
 266                          player.mdl.sk.bone_count,
 267                          0,
 268                          (float *)player.mdl.sk.final_mtx );
 269
 270    mesh_bind( &player.mdl.mesh );
 271    mesh_draw( &player.mdl.mesh );
 272 }
 273
 274 /*
 275  * -----------------------------------------------------------------------------
 276  *                              API implementation
 277  * -----------------------------------------------------------------------------
 278  */
 279
 280 static float *player_get_pos(void)
 281 {
 282    return player.phys.rb.co;
 283 }
 284
 285 static void player_kill(void)
 286 {
 287    player.is_dead = 1;
 288    player_ragdoll_copy_model( player.phys.rb.v );
 289 }
 290
 291 static float *player_cam_pos(void)
 292 {
 293    return player.camera_pos;
 294 }
 295
 296
 297 #endif /* PLAYER_H */