main.c

   1 /*
   2  * =============================================================================
   3  *
   4  * Copyright  .        . .       -----, ,----- ,---.   .---.
   5  * 2021-2022  |\      /| |           /  |      |    | |    /|
   6  *            | \    / | +--        /   +----- +---'  |   / |
   7  *            |  \  /  | |         /    |      |   \  |  /  |
   8  *            |   \/   | |        /     |      |    \ | /   |
   9  *            '        ' '--' [] '----- '----- '     ' '---'  SOFTWARE
  10  *
  11  * =============================================================================
  12  *
  13  * register: shader register & init scheduling
  14  * init:     initialization
  15  * update:   logic
  16  * render:   graphics
  17  * free:     resource free
  18  *
  19  */
  20
  21 #define SR_NETWORKED
  22 #define VG_3D
  23 #include "common.h"
  24 #include "steam.h"
  25 #include "render.h"
  26 #include "audio.h"
  27 #include "world.h"
  28 #include "player.h"
  29 #include "network.h"
  30
  31 static int cl_ui     = 1,
  32            cl_menu   = 0;
  33
  34 int main( int argc, char *argv[] )
  35 {
  36    vg_enter( argc, argv, "Voyager Game Engine" );
  37 }
  38
  39 static void highscores_save_at_exit(void*_)
  40 {
  41    highscores_serialize_all();
  42    highscores_free();
  43 }
  44
  45 void vg_preload(void)
  46 {
  47    vg_convar_push( (struct vg_convar){
  48       .name = "cl_ui",
  49       .data = &cl_ui,
  50       .data_type = k_convar_dtype_i32,
  51       .opt_i32 = { .min=0, .max=1, .clamp=1 },
  52       .persistent = 1
  53    });
  54
  55 vg_info(" Copyright  .        . .       -----, ,----- ,---.   .---.  \n" );
  56 vg_info(" 2021-2022  |\\      /| |           /  |      |    | |    /| \n" );
  57 vg_info("            | \\    / | +--        /   +----- +---'  |   / | \n" );
  58 vg_info("            |  \\  /  | |         /    |      |   \\  |  /  | \n" );
  59 vg_info("            |   \\/   | |        /     |      |    \\ | /   | \n" );
  60 vg_info("            '        ' '--' [] '----- '----- '     ' '---'  "
  61         "SOFTWARE\n" );
  62
  63    highscores_init( 2000, 50 );
  64    if( !highscores_read() )
  65       highscores_create_db();
  66
  67    vg_loader_highwater( NULL, highscores_save_at_exit, NULL );
  68
  69    vg_sleep_ms(200);
  70
  71    steam_init();
  72    vg_loader_highwater( NULL, steam_end, NULL );
  73
  74    vg_loader_highwater( network_init, network_end, NULL );
  75 }
  76
  77 void vg_load(void)
  78 {
  79    vg_loader_highwater( render_init, render_free, NULL );
  80    vg_loader_highwater( world_init, world_free, NULL );
  81    vg_loader_highwater( player_init, NULL, NULL );
  82
  83    if( !vg_bake_shaders() )
  84       vg_fatal_exit_loop( "Did not load all shaders" );
  85
  86    vg_loader_highwater( audio_init, audio_free, NULL );
  87
  88    /* FInal step */
  89    world_load();
  90    vg_console_load_autos();
  91 }
  92
  93 static void vg_start(void)
  94 {
  95    player_load_model( "ch_outlaw" );
  96    reset_player( 1, (const char *[]){ "start" } );
  97 }
  98
  99 static void draw_origin_axis(void)
 100 {
 101    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 102    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 103    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 104 }
 105
 106 void vg_update( int loaded )
 107 {
 108    steam_update();
 109
 110    if( loaded )
 111    {
 112       draw_origin_axis();
 113       network_update();
 114       player_update_pre();
 115       world_update( player.phys.rb.co );
 116    }
 117
 118    if( vg_get_button_down( "menu" ) )
 119    {
 120       cl_menu = !cl_menu;
 121    }
 122 }
 123
 124 static void vg_update_fixed( int loaded )
 125 {
 126    if( loaded )
 127    {
 128       player_update_fixed();
 129    }
 130 }
 131
 132 static void vg_update_post( int loaded )
 133 {
 134    if( loaded )
 135    {
 136       player_update_post();
 137    }
 138 }
 139
 140 static void vg_framebuffer_resize( int w, int h )
 141 {
 142    render_fb_resize();
 143    gate_fb_resize();
 144    water_fb_resize();
 145 }
 146
 147 static void render_main_game(void)
 148 {
 149    m4x4f world_4x4;
 150    m4x3_expand( player.camera_inverse, world_4x4 );
 151
 152    static float fov = 97.0f;
 153    float fov_target = player.phys.on_board? 125.0f: 108.0f;
 154    fov = vg_lerpf( fov, fov_target, vg.time_delta * 2.0f );
 155
 156    gpipeline.fov = freecam? 60.0f: fov; /* 120 */
 157    m4x4_projection( vg.pv, gpipeline.fov,
 158          (float)vg.window_x / (float)vg.window_y,
 159          0.02f, 2100.0f );
 160
 161    m4x4_mul( vg.pv, world_4x4, vg.pv );
 162    glEnable( GL_DEPTH_TEST );
 163
 164    /*
 165     * Draw world
 166     */
 167
 168    int draw_solid = player.is_dead | freecam;
 169
 170    render_world( vg.pv, player.camera );
 171    if( draw_solid )
 172       draw_player();
 173    render_water_texture( player.camera );
 174
 175    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 176    render_water_surface( vg.pv, player.camera );
 177
 178    render_world_gates( vg.pv, player.phys.rb.co, player.camera );
 179
 180    /* Copy the RGB of what we have into the background buffer */
 181    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 182    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 183    glBlitFramebuffer( 0,0, vg.window_x, vg.window_y,
 184                       0,0, vg.window_x, vg.window_y,
 185                       GL_COLOR_BUFFER_BIT,
 186                       GL_LINEAR );
 187
 188    /* Clear out the colour buffer, but keep depth */
 189    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 190    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 191
 192    if( !player.is_dead )
 193       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 194    else
 195       glClear( GL_COLOR_BUFFER_BIT );
 196
 197    if( !draw_solid )
 198    {
 199       m4x4_projection( vg.pv, gpipeline.fov,
 200             (float)vg.window_x / (float)vg.window_y,
 201             0.01f, 600.0f );
 202       m4x4_mul( vg.pv, world_4x4, vg.pv );
 203       draw_player();
 204    }
 205
 206    /* Draw back in the background
 207     *
 208     * TODO: need to disable alpha write in the terrain shader so this works
 209     *       again.
 210     */
 211    glEnable(GL_BLEND);
 212    glDisable(GL_DEPTH_TEST);
 213    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 214    glBlendEquation(GL_FUNC_ADD);
 215
 216    shader_blit_use();
 217    shader_blit_uTexMain( 0 );
 218    glActiveTexture(GL_TEXTURE0);
 219    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 220
 221    render_fsquad();
 222 }
 223
 224 void vg_render(void)
 225 {
 226    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 227    glViewport( 0,0, vg.window_x, vg.window_y );
 228    glDisable( GL_DEPTH_TEST );
 229
 230    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 231    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 232
 233    render_main_game();
 234
 235
 236    /* Other shite */
 237    glDisable(GL_BLEND);
 238    glDisable( GL_DEPTH_TEST );
 239    vg_lines_drawall( (float *)vg.pv );
 240    glViewport( 0,0, vg.window_x, vg.window_y );
 241 }
 242
 243 void vg_ui(void)
 244 {
 245    if( cl_menu )
 246    {
 247       ui_rect menu =
 248       {
 249          vg.window_x / 2 - 150,
 250          vg.window_y / 2 - 50,
 251          300,
 252          130
 253       };
 254
 255       ui_fill_rect( &ui_global_ctx, menu, 0xa0000000 );
 256
 257       ui_text( &ui_global_ctx, (ui_rect){ menu[0]+menu[2]/2,menu[1]+6, 0, 0 },
 258                                steam_username_at_startup,
 259                                1, k_text_align_center );
 260       menu[1] += 24;
 261       menu[3] -= 30;
 262
 263       ui_rect_pad( menu, 8 );
 264       ui_fill_rect( &ui_global_ctx, menu, 0x90ffffff );
 265       ui_rect_pad( menu, 2 );
 266       ui_fill_rect( &ui_global_ctx, menu, 0xa0000000 );
 267
 268       menu[1] += 32;
 269       ui_text( &ui_global_ctx, (ui_rect){ menu[0]+menu[2]/2,menu[1], 0, 0 },
 270                                "Exit", 2, k_text_align_center );
 271
 272       if( vg_get_button_down( "jump" ) )
 273       {
 274          glfwSetWindowShouldClose( vg.window, 1 );
 275       }
 276    }
 277
 278 #if 0
 279    if( lightedit )
 280    {
 281       ui_global_ctx.cursor[0] = 10;
 282       ui_global_ctx.cursor[1] = 10;
 283       ui_global_ctx.cursor[2] = 200;
 284       ui_global_ctx.cursor[3] = 20;
 285
 286       struct ub_world_lighting *wl = &gpipeline.ub_world_lighting;
 287       struct ui_slider_vector
 288          s5 = { .min=0.0f, .max=2.0f, .len=3, .data=wl->g_ambient_colour };
 289
 290       struct ui_slider
 291          s8 = { .min=0.0f, .max=2.0f, .data = &gpipeline.shadow_spread },
 292          s9 = { .min=0.0f, .max=25.0f, .data = &gpipeline.shadow_length };
 293
 294       for( int i=0; i<3; i++ )
 295          run_light_widget( &gpipeline.widgets[i] );
 296
 297       gui_text( ui_global_ctx.cursor, "Ambient", 1, 0 );
 298       ui_global_ctx.cursor[1] += 16;
 299       ui_slider_vector( &ui_global_ctx, &s5 );
 300
 301       gui_text( ui_global_ctx.cursor, "Shadows", 1, 0 );
 302       ui_global_ctx.cursor[1] += 16;
 303       ui_slider( &ui_global_ctx, &s8 );
 304       ui_slider( &ui_global_ctx, &s9 );
 305
 306       gui_text( ui_global_ctx.cursor, "Misc", 1, 0 );
 307       ui_global_ctx.cursor[1] += 16;
 308       struct ui_checkbox c1 = {.data = &wl->g_light_preview};
 309       ui_checkbox( &ui_global_ctx, &c1 );
 310
 311       render_update_lighting_ub();
 312    }
 313 #endif
 314
 315    //glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
 316    if( cl_ui )
 317    {
 318       render_world_routes_ui();
 319    }
 320    //glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
 321
 322    audio_debug_soundscapes();
 323 }
 324
 325 #if 0
 326 static void run_light_widget( struct light_widget *lw )
 327 {
 328    struct ui_checkbox c1 = { .data=&lw->enabled };
 329
 330    ui_checkbox( &ui_global_ctx, &c1 );
 331
 332    if( lw->enabled )
 333    {
 334       struct ui_slider_vector
 335          colour = { .min=0.0f, .max=2.0f, .len=3, .data=lw->colour },
 336          dir    = { .min=-VG_PIf, .max=VG_PIf, .len=2, .data=lw->dir };
 337
 338       ui_slider_vector( &ui_global_ctx, &colour );
 339       ui_global_ctx.cursor[1] += 4;
 340       ui_slider_vector( &ui_global_ctx, &dir );
 341    }
 342 }
 343 #endif
 344
 345 static void run_debug_info(void)
 346 {
 347    char buf[40];
 348
 349    snprintf( buf, 40, "%.2fm/s", v3_length( player.phys.rb.v ) );
 350    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 351
 352    snprintf( buf, 40, "%.2f %.2f %.2f m/s",
 353          player.phys.a[0], player.phys.a[1], player.phys.a[2] );
 354    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 355
 356    snprintf( buf, 40, "pos %.2f %.2f %.2f",
 357          player.phys.rb.co[0], player.phys.rb.co[1], player.phys.rb.co[2] );
 358    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 359
 360    if( vg.gamepad_ready )
 361    {
 362       for( int i=0; i<6; i++ )
 363       {
 364          snprintf( buf, 40, "%.2f", vg.gamepad.axes[i] );
 365          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 366       }
 367    }
 368    else
 369    {
 370       gui_text( (ui_px [2]){ 0, 60 },
 371             "Gamepad not ready", 1, k_text_align_left );
 372    }
 373 }