main.c

   1 /*
   2  * Copyright 2021-2022 (C) Mount0 Software, Harry Godden - All Rights Reserved
   3  *
   4  * module.h               structure definitions
   5  *  module_submodule.h    implementation
   6  *  module_submodule_2.h
   7  */
   8
   9 #include "common.h"
  10
  11 /* Resources */
  12 vg_tex2d tex_norwey = { .path = "textures/norway_foliage.qoi" };
  13 vg_tex2d tex_grid = { .path = "textures/grid.qoi" };
  14 vg_tex2d tex_sky = { .path = "textures/sky.qoi" };
  15 vg_tex2d tex_gradients = { .path = "textures/gradients.qoi",
  16                            .flags = VG_TEXTURE_CLAMP };
  17 vg_tex2d tex_cement = { .path = "textures/cement512.qoi" };
  18 vg_tex2d tex_water = { .path = "textures/water.qoi" };
  19
  20 /* Convars */
  21 static int debugview = 0;
  22 static int sv_debugcam = 0;
  23 static int lightedit = 0;
  24 static int sv_scene = 0;
  25 static int cl_ui = 1;
  26
  27 /* Components */
  28 #define SR_NETWORKED
  29
  30 /* uncomment this to run the game without any graphics being drawn */
  31 //#define SR_NETWORK_TEST
  32
  33 #include "steam.h"
  34 #include "network.h"
  35
  36 #include "model.h"
  37 //#include "road.h"
  38 #include "scene.h"
  39 //#include "ik.h"
  40 #include "audio.h"
  41 //#include "terrain.h"
  42 //#include "character.h"
  43 #include "ragdoll.h"
  44 #include "rigidbody.h"
  45 #include "render.h"
  46 #include "world.h"
  47 #include "player.h"
  48
  49 #include "shaders/blit.h"
  50 #include "shaders/standard.h"
  51 #include "shaders/unlit.h"
  52
  53 #include "physics_test.h"
  54 #include "anim_test.h"
  55
  56 #include "gate.h"
  57 #include "water.h"
  58
  59 void vg_register(void)
  60 {
  61    shader_blit_register();
  62    shader_standard_register();
  63    shader_vblend_register();
  64    shader_unlit_register();
  65
  66    player_register();
  67    world_register();
  68    water_register();
  69    gate_register();
  70 }
  71
  72 static void init_other(void)
  73 {
  74    player_init();
  75    render_init();
  76    gate_init();
  77    world_init();
  78    audio_init();
  79 }
  80
  81 vg_tex2d *texture_list[] =
  82 {
  83    &tex_norwey,
  84    &tex_gradients,
  85    &tex_grid,
  86    &tex_sky,
  87    &tex_cement,
  88    &tex_water,
  89    &tex_water_surf
  90 };
  91
  92 int main( int argc, char *argv[] )
  93 {
  94    highscores_init( 2000, 50 );
  95    vg_init( argc, argv, "Voyager Game Engine" );
  96 }
  97
  98 static int playermodel( int argc, char const *argv[] )
  99 {
 100    if( argc < 1 ) return 0;
 101
 102    glmesh old_mesh = player.mdl.mesh;
 103
 104    if( player_load_model( argv[0] ) )
 105       mesh_free( &old_mesh );
 106
 107    return 1;
 108 }
 109
 110 void vg_start(void)
 111 {
 112    steam_init();
 113
 114    vg_convar_push( (struct vg_convar){
 115       .name = "fc",
 116       .data = &freecam,
 117       .data_type = k_convar_dtype_i32,
 118       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 119       .persistent = 1
 120    });
 121
 122    vg_convar_push( (struct vg_convar){
 123       .name = "grid",
 124       .data = &walk_grid_iterations,
 125       .data_type = k_convar_dtype_i32,
 126       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 127       .persistent = 1
 128    });
 129
 130    vg_convar_push( (struct vg_convar){
 131       .name = "fcs",
 132       .data = &fc_speed,
 133       .data_type = k_convar_dtype_f32,
 134       .opt_f32 = { .clamp = 0 },
 135       .persistent = 1
 136    });
 137
 138    vg_convar_push( (struct vg_convar){
 139       .name = "ledit",
 140       .data = &lightedit,
 141       .data_type = k_convar_dtype_i32,
 142       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 143       .persistent = 1
 144    });
 145
 146    vg_convar_push( (struct vg_convar){
 147       .name = "cl_ui",
 148       .data = &cl_ui,
 149       .data_type = k_convar_dtype_i32,
 150       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 151       .persistent = 1
 152    });
 153
 154    vg_convar_push( (struct vg_convar){
 155       .name = "walk_speed",
 156       .data = &k_walkspeed,
 157       .data_type = k_convar_dtype_f32,
 158       .opt_f32 = { .clamp = 0 },
 159       .persistent = 1
 160    });
 161
 162    vg_convar_push( (struct vg_convar){
 163       .name = "run_speed",
 164       .data = &k_runspeed,
 165       .data_type = k_convar_dtype_f32,
 166       .opt_f32 = { .clamp = 0 },
 167       .persistent = 1
 168    });
 169
 170    vg_convar_push( (struct vg_convar){
 171       .name = "walk_accel",
 172       .data = &k_walk_accel,
 173       .data_type = k_convar_dtype_f32,
 174       .opt_f32 = { .clamp = 0 },
 175       .persistent = 1
 176    });
 177
 178    vg_convar_push( (struct vg_convar){
 179       .name = "rd_floaty",
 180       .data = &k_ragdoll_floatyiness,
 181       .data_type = k_convar_dtype_f32,
 182       .opt_f32 = { .clamp = 0 },
 183       .persistent = 1
 184    });
 185
 186    vg_convar_push( (struct vg_convar){
 187       .name = "rd_floatd",
 188       .data = &k_ragdoll_floatydrag,
 189       .data_type = k_convar_dtype_f32,
 190       .opt_f32 = { .clamp = 0 },
 191       .persistent = 1
 192    });
 193
 194    vg_convar_push( (struct vg_convar){
 195       .name = "dt",
 196       .data = &ktimestep,
 197       .data_type = k_convar_dtype_f32,
 198       .opt_f32 = { .clamp = 0 },
 199       .persistent = 0
 200    });
 201
 202    vg_convar_push( (struct vg_convar){
 203       .name = "debugcam",
 204       .data = &sv_debugcam,
 205       .data_type = k_convar_dtype_i32,
 206       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 207       .persistent = 1
 208    });
 209
 210    vg_convar_push( (struct vg_convar){
 211       .name = "debugview",
 212       .data = &debugview,
 213       .data_type = k_convar_dtype_i32,
 214       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 215       .persistent = 1
 216    });
 217
 218         vg_function_push( (struct vg_cmd){
 219                 .name = "reset",
 220                 .function = reset_player
 221         });
 222
 223    vg_tex2d_init( texture_list, vg_list_size( texture_list ) );
 224
 225    init_other();
 226
 227    /*
 228     * If we're in physics test mode we dont need to load anything else, this
 229     * parameter is dev only. TODO: dev only cvars that don't ship with the game
 230     * when building in release mode.
 231     */
 232
 233    if( sv_scene == 0 )
 234    {
 235       player_load_model( "ch_new" );
 236
 237       world_load();
 238
 239       reset_player( 1, (const char *[]){ "start" } );
 240       rb_init( &player.rb );
 241
 242       network_init();
 243    }
 244    else if( sv_scene == 1 )
 245    {
 246       physics_test_start();
 247    }
 248    else if( sv_scene == 2 )
 249    {
 250       anim_test_start();
 251    }
 252 }
 253
 254 void vg_free(void)
 255 {
 256    network_end();
 257    vg_tex2d_free( texture_list, vg_list_size(texture_list) );
 258    /* TODO: THE REST OF THE GOD DAMN FREEING STUFF */
 259    steam_end();
 260
 261    highscores_serialize_all();
 262    highscores_free();
 263 }
 264
 265 void vg_update(void)
 266 {
 267    steam_update();
 268
 269    if( sv_scene == 0 )
 270    {
 271       network_update();
 272       player_update();
 273       world_update();
 274       //traffic_visualize( world.traffic, world.traffic_count );
 275       //
 276       /* TEMP */
 277       if( glfwGetKey( vg_window, GLFW_KEY_J ))
 278       {
 279          v3_copy( player.camera_pos, world.mr_ball.co );
 280       }
 281    }
 282    else if( sv_scene == 1 )
 283    {
 284       physics_test_update();
 285    }
 286    else if( sv_scene == 2 )
 287    {
 288       anim_test_update();
 289    }
 290 }
 291
 292 static void vg_framebuffer_resize( int w, int h )
 293 {
 294    render_fb_resize();
 295    gate_fb_resize();
 296    water_fb_resize();
 297 }
 298
 299 static void draw_origin_axis(void)
 300 {
 301    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 302    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 303    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 304 }
 305
 306 static void render_main_game(void)
 307 {
 308    float speed = freecam? 0.0f: v3_length( player.rb.v );
 309    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 310    v3_muls( shake, speed*0.01f, shake );
 311
 312    m4x4f world_4x4;
 313    m4x3_expand( player.camera_inverse, world_4x4 );
 314
 315    gpipeline.fov = freecam? 60.0f: 125.0f; /* 120 */
 316    m4x4_projection( vg_pv, gpipeline.fov,
 317          (float)vg_window_x / (float)vg_window_y,
 318          0.02f, 2100.0f );
 319
 320    m4x4_mul( vg_pv, world_4x4, vg_pv );
 321
 322    glEnable( GL_DEPTH_TEST );
 323
 324    /*
 325     * Draw world
 326     */
 327
 328    int draw_solid = player.is_dead | freecam;
 329
 330    render_world( vg_pv, player.camera );
 331    if( draw_solid )
 332       draw_player();
 333    render_water_texture( player.camera );
 334
 335    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 336    render_water_surface( vg_pv, player.camera );
 337
 338    vg_tex2d_bind( &tex_water, 1 ); /*TODO: ?*/
 339    render_world_gates( vg_pv, player.rb.co, player.camera );
 340
 341    /* Copy the RGB of what we have into the background buffer */
 342    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 343    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 344    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 345                       0,0, vg_window_x, vg_window_y,
 346                       GL_COLOR_BUFFER_BIT,
 347                       GL_LINEAR );
 348
 349    /* Clear out the colour buffer, but keep depth */
 350    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 351    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 352
 353    if( !player.is_dead )
 354       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 355    else
 356       glClear( GL_COLOR_BUFFER_BIT );
 357
 358    if( !draw_solid )
 359    {
 360       m4x4_projection( vg_pv, gpipeline.fov,
 361             (float)vg_window_x / (float)vg_window_y,
 362             0.01f, 600.0f );
 363       m4x4_mul( vg_pv, world_4x4, vg_pv );
 364       draw_player();
 365    }
 366
 367    /* Draw back in the background
 368     *
 369     * TODO: need to disable alpha write in the terrain shader so this works
 370     *       again.
 371     */
 372    glEnable(GL_BLEND);
 373    glDisable(GL_DEPTH_TEST);
 374    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 375    glBlendEquation(GL_FUNC_ADD);
 376
 377    shader_blit_use();
 378    shader_blit_uTexMain( 0 );
 379    glActiveTexture(GL_TEXTURE0);
 380    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 381
 382    render_fsquad();
 383    glDisable(GL_BLEND);
 384
 385    /* Other shite */
 386    glDisable( GL_DEPTH_TEST );
 387    vg_lines_drawall( (float *)vg_pv );
 388    glViewport( 0,0, vg_window_x, vg_window_y );
 389 }
 390
 391 void vg_render(void)
 392 {
 393    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 394    glViewport( 0,0, vg_window_x, vg_window_y );
 395
 396    glDisable( GL_DEPTH_TEST );
 397    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 398    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 399
 400 #ifndef SR_NETWORK_TEST
 401    draw_origin_axis();
 402
 403    if( sv_scene == 0 )
 404    {
 405       render_main_game();
 406    }
 407    else if( sv_scene == 1 )
 408    {
 409       physics_test_render();
 410    }
 411    else if( sv_scene == 2 )
 412    {
 413       anim_test_render( &tex_characters );
 414    }
 415 #endif
 416 }
 417
 418 static void run_light_widget( struct light_widget *lw )
 419 {
 420    struct ui_checkbox c1 = { .data=&lw->enabled };
 421
 422    ui_checkbox( &ui_global_ctx, &c1 );
 423
 424    if( lw->enabled )
 425    {
 426       struct ui_slider_vector
 427          colour = { .min=0.0f, .max=2.0f, .len=3, .data=lw->colour },
 428          dir    = { .min=-VG_PIf, .max=VG_PIf, .len=2, .data=lw->dir };
 429
 430       ui_slider_vector( &ui_global_ctx, &colour );
 431       ui_global_ctx.cursor[1] += 4;
 432       ui_slider_vector( &ui_global_ctx, &dir );
 433    }
 434 }
 435
 436 static void run_debug_info(void)
 437 {
 438    char buf[40];
 439
 440    snprintf( buf, 40, "%.2fm/s", v3_length( player.rb.v ) );
 441    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 442
 443    snprintf( buf, 40, "%.2f %.2f %.2f m/s",
 444          player.a[0], player.a[1], player.a[2] );
 445    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 446
 447    snprintf( buf, 40, "pos %.2f %.2f %.2f",
 448          player.rb.co[0], player.rb.co[1], player.rb.co[2] );
 449    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 450
 451    if( vg_gamepad_ready )
 452    {
 453       for( int i=0; i<6; i++ )
 454       {
 455          snprintf( buf, 40, "%.2f", vg_gamepad.axes[i] );
 456          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 457       }
 458    }
 459    else
 460    {
 461       gui_text( (ui_px [2]){ 0, 60 },
 462             "Gamepad not ready", 1, k_text_align_left );
 463    }
 464 }
 465
 466 void vg_ui(void)
 467 {
 468    if( lightedit )
 469    {
 470       ui_global_ctx.cursor[0] = 10;
 471       ui_global_ctx.cursor[1] = 10;
 472       ui_global_ctx.cursor[2] = 200;
 473       ui_global_ctx.cursor[3] = 20;
 474
 475       struct ub_world_lighting *wl = &gpipeline.ub_world_lighting;
 476       struct ui_slider_vector
 477          s5 = { .min=0.0f, .max=2.0f, .len=3, .data=wl->g_ambient_colour };
 478
 479       struct ui_slider
 480          s8 = { .min=0.0f, .max=2.0f, .data = &gpipeline.shadow_spread },
 481          s9 = { .min=0.0f, .max=25.0f, .data = &gpipeline.shadow_length };
 482
 483       for( int i=0; i<3; i++ )
 484          run_light_widget( &gpipeline.widgets[i] );
 485
 486       gui_text( ui_global_ctx.cursor, "Ambient", 1, 0 );
 487       ui_global_ctx.cursor[1] += 16;
 488       ui_slider_vector( &ui_global_ctx, &s5 );
 489
 490       gui_text( ui_global_ctx.cursor, "Shadows", 1, 0 );
 491       ui_global_ctx.cursor[1] += 16;
 492       ui_slider( &ui_global_ctx, &s8 );
 493       ui_slider( &ui_global_ctx, &s9 );
 494
 495       gui_text( ui_global_ctx.cursor, "Misc", 1, 0 );
 496       ui_global_ctx.cursor[1] += 16;
 497       struct ui_checkbox c1 = {.data = &wl->g_light_preview};
 498       ui_checkbox( &ui_global_ctx, &c1 );
 499
 500       render_update_lighting_ub();
 501    }
 502
 503    //glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
 504    if( cl_ui )
 505    {
 506       render_world_routes_ui();
 507    }
 508    //glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
 509
 510    audio_debug_soundscapes();
 511    world_audio_debug();
 512
 513 #if 0
 514    static double last_b_press = 0.0;
 515
 516    double localtime = vg_time - last_b_press;
 517
 518    world_routes_ui_updatetime( 0, localtime );
 519    world_routes_ui_draw( 0, (v4f){ 1.0f,0.0f,1.0f,1.0f}, 9.0f );
 520
 521    if( glfwGetKey(vg_window,GLFW_KEY_B) )
 522       world_routes_ui_notch( 0, localtime );
 523
 524    if( vg_time-last_b_press > 1.0 )
 525       if( glfwGetKey(vg_window,GLFW_KEY_N) )
 526       {
 527          last_b_press = vg_time;
 528          world_routes_ui_newseg( 0 );
 529       }
 530
 531    static double last_m_press;
 532    if( vg_time-last_m_press > 1.0 )
 533       if( glfwGetKey( vg_window, GLFW_KEY_M) )
 534       {
 535          last_m_press = vg_time;
 536
 537          vg_info( "start: %u\n",world.routes.routes[0].ui.segment_count );
 538          for( int i=0; i<world.routes.routes[0].ui.segment_count; i++ )
 539             world_routes_ui_popfirst(0);
 540
 541          vg_info( "new: %u\n",world.routes.routes[0].ui.segment_count );
 542       }
 543 #endif
 544 }