main.c

   1 /*
   2  * Copyright (C) Mount0 Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #include "common.h"
   6
   7 /* Resources */
   8 vg_tex2d tex_norwey = { .path = "textures/norway_foliage.qoi" };
   9 vg_tex2d tex_grid = { .path = "textures/grid.qoi" };
  10 vg_tex2d tex_sky = { .path = "textures/sky.qoi" };
  11 vg_tex2d tex_gradients = { .path = "textures/gradients.qoi",
  12                            .flags = VG_TEXTURE_CLAMP };
  13 vg_tex2d tex_cement = { .path = "textures/cement512.qoi" };
  14 vg_tex2d tex_water = { .path = "textures/water.qoi" };
  15
  16 /* Convars */
  17 static int debugview = 0;
  18 static int sv_debugcam = 0;
  19 static int lightedit = 0;
  20 static int sv_scene = 2;
  21
  22 /* Components */
  23 //#define SR_NETWORKED
  24
  25 /* uncomment this to run the game without any graphics being drawn */
  26 //#define SR_NETWORK_TEST
  27
  28 #include "steam.h"
  29 #include "network.h"
  30
  31 #include "road.h"
  32 #include "scene.h"
  33 #include "ik.h"
  34 #include "audio.h"
  35 #include "terrain.h"
  36 #include "character.h"
  37 #include "ragdoll.h"
  38 #include "rigidbody.h"
  39 #include "render.h"
  40 #include "gate.h"
  41 #include "water.h"
  42 #include "world.h"
  43 #include "player.h"
  44
  45 #include "shaders/blit.h"
  46 #include "shaders/standard.h"
  47 #include "shaders/unlit.h"
  48
  49 #include "physics_test.h"
  50 #include "anim_test.h"
  51
  52 void vg_register(void)
  53 {
  54    shader_blit_register();
  55    shader_standard_register();
  56    shader_vblend_register();
  57    shader_unlit_register();
  58
  59    world_register();
  60    character_register();
  61    water_register();
  62    gate_register();
  63 }
  64
  65 static void init_other(void)
  66 {
  67    player_init();
  68    render_init();
  69    gate_init();
  70    world_init();
  71    character_init();
  72    audio_init();
  73 }
  74
  75 vg_tex2d *texture_list[] =
  76 {
  77    &tex_norwey,
  78    &tex_gradients,
  79    &tex_grid,
  80    &tex_sky,
  81    &tex_cement,
  82    &tex_water,
  83    &tex_water_surf
  84 };
  85
  86 int main( int argc, char *argv[] )
  87 {
  88    vg_init( argc, argv, "Voyager Game Engine" );
  89 }
  90
  91 static int playermodel( int argc, char const *argv[] )
  92 {
  93    if( argc < 1 ) return 0;
  94
  95    glmesh old_mesh = player.mdl.mesh;
  96
  97    if( character_load( &player.mdl, argv[0] ) )
  98       mesh_free( &old_mesh );
  99
 100    return 1;
 101 }
 102
 103 void vg_start(void)
 104 {
 105    steam_init();
 106
 107    vg_convar_push( (struct vg_convar){
 108       .name = "fc",
 109       .data = &freecam,
 110       .data_type = k_convar_dtype_i32,
 111       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 112       .persistent = 1
 113    });
 114
 115    vg_convar_push( (struct vg_convar){
 116       .name = "grid",
 117       .data = &walk_grid_iterations,
 118       .data_type = k_convar_dtype_i32,
 119       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 120       .persistent = 1
 121    });
 122
 123    vg_convar_push( (struct vg_convar){
 124       .name = "fcs",
 125       .data = &fc_speed,
 126       .data_type = k_convar_dtype_f32,
 127       .opt_f32 = { .clamp = 0 },
 128       .persistent = 1
 129    });
 130
 131    vg_convar_push( (struct vg_convar){
 132       .name = "ledit",
 133       .data = &lightedit,
 134       .data_type = k_convar_dtype_i32,
 135       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 136       .persistent = 1
 137    });
 138
 139    vg_convar_push( (struct vg_convar){
 140       .name = "walk_speed",
 141       .data = &k_walkspeed,
 142       .data_type = k_convar_dtype_f32,
 143       .opt_f32 = { .clamp = 0 },
 144       .persistent = 1
 145    });
 146
 147    vg_convar_push( (struct vg_convar){
 148       .name = "dt",
 149       .data = &ktimestep,
 150       .data_type = k_convar_dtype_f32,
 151       .opt_f32 = { .clamp = 0 },
 152       .persistent = 0
 153    });
 154
 155    vg_convar_push( (struct vg_convar){
 156       .name = "debugcam",
 157       .data = &sv_debugcam,
 158       .data_type = k_convar_dtype_i32,
 159       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 160       .persistent = 1
 161    });
 162
 163    vg_convar_push( (struct vg_convar){
 164       .name = "debugview",
 165       .data = &debugview,
 166       .data_type = k_convar_dtype_i32,
 167       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 168       .persistent = 1
 169    });
 170
 171         vg_function_push( (struct vg_cmd){
 172                 .name = "reset",
 173                 .function = reset_player
 174         });
 175
 176    vg_tex2d_init( texture_list, vg_list_size( texture_list ) );
 177
 178    init_other();
 179
 180    /*
 181     * If we're in physics test mode we dont need to load anything else, this
 182     * parameter is dev only. TODO: dev only cvars that don't ship with the game
 183     * when building in release mode.
 184     */
 185
 186    if( sv_scene == 0 )
 187    {
 188       character_load( &player.mdl, "ch_default" );
 189       character_init_ragdoll( &player.mdl );
 190
 191       world_load();
 192
 193       reset_player( 1, (const char *[]){ "start" } );
 194       rb_init( &player.rb );
 195
 196       network_init();
 197    }
 198    else if( sv_scene == 1 )
 199    {
 200       physics_test_start();
 201    }
 202    else if( sv_scene == 2 )
 203    {
 204       anim_test_start();
 205    }
 206 }
 207
 208 void vg_free(void)
 209 {
 210    network_end();
 211    vg_tex2d_free( texture_list, vg_list_size(texture_list) );
 212    /* TODO: THE REST OF THE GOD DAMN FREEING STUFF */
 213    steam_end();
 214 }
 215
 216 void vg_update(void)
 217 {
 218    steam_update();
 219
 220    if( sv_scene == 0 )
 221    {
 222       network_update();
 223       player_update();
 224       world_update();
 225       //traffic_visualize( world.traffic, world.traffic_count );
 226       //
 227       /* TEMP */
 228       if( glfwGetKey( vg_window, GLFW_KEY_J ))
 229       {
 230          v3_copy( player.camera_pos, world.mr_ball.co );
 231       }
 232    }
 233    else if( sv_scene == 1 )
 234    {
 235       physics_test_update();
 236    }
 237    else if( sv_scene == 2 )
 238    {
 239       anim_test_update();
 240    }
 241 }
 242
 243 static void vg_framebuffer_resize( int w, int h )
 244 {
 245    render_fb_resize();
 246    gate_fb_resize();
 247    water_fb_resize();
 248 }
 249
 250 static void draw_origin_axis(void)
 251 {
 252    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 253    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 254    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 255 }
 256
 257 static void render_main_game(void)
 258 {
 259    float speed = freecam? 0.0f: v3_length( player.rb.v );
 260    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 261    v3_muls( shake, speed*0.01f, shake );
 262
 263    m4x4f world_4x4;
 264    m4x3_expand( player.camera_inverse, world_4x4 );
 265
 266    gpipeline.fov = freecam? 60.0f: 135.0f; /* 120 */
 267    m4x4_projection( vg_pv, gpipeline.fov,
 268          (float)vg_window_x / (float)vg_window_y,
 269          0.02f, 2100.0f );
 270
 271    m4x4_mul( vg_pv, world_4x4, vg_pv );
 272
 273    glEnable( GL_DEPTH_TEST );
 274
 275    /*
 276     * Draw world
 277     */
 278
 279    render_world( vg_pv, player.camera );
 280    render_water_texture( player.camera );
 281
 282    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 283    render_water_surface( vg_pv, player.camera );
 284
 285    vg_tex2d_bind( &tex_water, 1 ); /*TODO: ?*/
 286    render_world_gates( vg_pv, player.camera );
 287
 288    /* Copy the RGB of what we have into the background buffer */
 289    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 290    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 291    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 292                       0,0, vg_window_x, vg_window_y,
 293                       GL_COLOR_BUFFER_BIT,
 294                       GL_LINEAR );
 295
 296    /* Clear out the colour buffer, but keep depth */
 297    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 298    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 299
 300    if( !player.is_dead )
 301       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 302    else
 303       glClear( GL_COLOR_BUFFER_BIT );
 304
 305    if( !player.is_dead )
 306    {
 307       m4x4_projection( vg_pv, gpipeline.fov,
 308             (float)vg_window_x / (float)vg_window_y,
 309             0.01f, 600.0f );
 310       m4x4_mul( vg_pv, world_4x4, vg_pv );
 311    }
 312    draw_player();
 313
 314    /* Draw back in the background
 315     *
 316     * TODO: need to disable alpha write in the terrain shader so this works
 317     *       again.
 318     */
 319    glEnable(GL_BLEND);
 320    glDisable(GL_DEPTH_TEST);
 321    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 322    glBlendEquation(GL_FUNC_ADD);
 323
 324    shader_blit_use();
 325    shader_blit_uTexMain( 0 );
 326    glActiveTexture(GL_TEXTURE0);
 327    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 328
 329    render_fsquad();
 330    glDisable(GL_BLEND);
 331
 332    /* Other shite */
 333    glDisable( GL_DEPTH_TEST );
 334    vg_lines_drawall( (float *)vg_pv );
 335    glViewport( 0,0, vg_window_x, vg_window_y );
 336 }
 337
 338 void vg_render(void)
 339 {
 340    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 341    glViewport( 0,0, vg_window_x, vg_window_y );
 342
 343    glDisable( GL_DEPTH_TEST );
 344    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 345    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 346
 347 #ifndef SR_NETWORK_TEST
 348    draw_origin_axis();
 349
 350    if( sv_scene == 0 )
 351    {
 352       render_main_game();
 353    }
 354    else if( sv_scene == 1 )
 355    {
 356       physics_test_render();
 357    }
 358    else if( sv_scene == 2 )
 359    {
 360       anim_test_render();
 361    }
 362 #endif
 363 }
 364
 365 static void run_light_widget( struct light_widget *lw )
 366 {
 367    struct ui_checkbox c1 = { .data=&lw->enabled };
 368
 369    ui_checkbox( &ui_global_ctx, &c1 );
 370
 371    if( lw->enabled )
 372    {
 373       struct ui_slider_vector
 374          colour = { .min=0.0f, .max=2.0f, .len=3, .data=lw->colour },
 375          dir    = { .min=-VG_PIf, .max=VG_PIf, .len=2, .data=lw->dir };
 376
 377       ui_slider_vector( &ui_global_ctx, &colour );
 378       ui_global_ctx.cursor[1] += 4;
 379       ui_slider_vector( &ui_global_ctx, &dir );
 380    }
 381 }
 382
 383 static void run_debug_info(void)
 384 {
 385    char buf[40];
 386
 387    snprintf( buf, 40, "%.2fm/s", v3_length( player.rb.v ) );
 388    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 389
 390    snprintf( buf, 40, "%.2f %.2f %.2f m/s",
 391          player.a[0], player.a[1], player.a[2] );
 392    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 393
 394    snprintf( buf, 40, "pos %.2f %.2f %.2f",
 395          player.rb.co[0], player.rb.co[1], player.rb.co[2] );
 396    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 397
 398    if( vg_gamepad_ready )
 399    {
 400       for( int i=0; i<6; i++ )
 401       {
 402          snprintf( buf, 40, "%.2f", vg_gamepad.axes[i] );
 403          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 404       }
 405    }
 406    else
 407    {
 408       gui_text( (ui_px [2]){ 0, 60 },
 409             "Gamepad not ready", 1, k_text_align_left );
 410    }
 411 }
 412
 413 void vg_ui(void)
 414 {
 415    if( lightedit )
 416    {
 417       ui_global_ctx.cursor[0] = 10;
 418       ui_global_ctx.cursor[1] = 10;
 419       ui_global_ctx.cursor[2] = 200;
 420       ui_global_ctx.cursor[3] = 20;
 421
 422       struct ub_world_lighting *wl = &gpipeline.ub_world_lighting;
 423       struct ui_slider_vector
 424          s5 = { .min=0.0f, .max=2.0f, .len=3, .data=wl->g_ambient_colour };
 425
 426       struct ui_slider
 427          s8 = { .min=0.0f, .max=2.0f, .data = &gpipeline.shadow_spread },
 428          s9 = { .min=0.0f, .max=25.0f, .data = &gpipeline.shadow_length };
 429
 430       for( int i=0; i<3; i++ )
 431          run_light_widget( &gpipeline.widgets[i] );
 432
 433       gui_text( ui_global_ctx.cursor, "Ambient", 1, 0 );
 434       ui_global_ctx.cursor[1] += 16;
 435       ui_slider_vector( &ui_global_ctx, &s5 );
 436
 437       gui_text( ui_global_ctx.cursor, "Shadows", 1, 0 );
 438       ui_global_ctx.cursor[1] += 16;
 439       ui_slider( &ui_global_ctx, &s8 );
 440       ui_slider( &ui_global_ctx, &s9 );
 441
 442       gui_text( ui_global_ctx.cursor, "Misc", 1, 0 );
 443       ui_global_ctx.cursor[1] += 16;
 444       struct ui_checkbox c1 = {.data = &wl->g_light_preview};
 445       ui_checkbox( &ui_global_ctx, &c1 );
 446
 447       render_update_lighting_ub();
 448    }
 449
 450    //glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
 451    render_world_routes_ui();
 452    //glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
 453
 454 #if 0
 455    static double last_b_press = 0.0;
 456
 457    double localtime = vg_time - last_b_press;
 458
 459    world_routes_ui_updatetime( 0, localtime );
 460    world_routes_ui_draw( 0, (v4f){ 1.0f,0.0f,1.0f,1.0f}, 9.0f );
 461
 462    if( glfwGetKey(vg_window,GLFW_KEY_B) )
 463       world_routes_ui_notch( 0, localtime );
 464
 465    if( vg_time-last_b_press > 1.0 )
 466       if( glfwGetKey(vg_window,GLFW_KEY_N) )
 467       {
 468          last_b_press = vg_time;
 469          world_routes_ui_newseg( 0 );
 470       }
 471
 472    static double last_m_press;
 473    if( vg_time-last_m_press > 1.0 )
 474       if( glfwGetKey( vg_window, GLFW_KEY_M) )
 475       {
 476          last_m_press = vg_time;
 477
 478          vg_info( "start: %u\n",world.routes.routes[0].ui.segment_count );
 479          for( int i=0; i<world.routes.routes[0].ui.segment_count; i++ )
 480             world_routes_ui_popfirst(0);
 481
 482          vg_info( "new: %u\n",world.routes.routes[0].ui.segment_count );
 483       }
 484 #endif
 485 }