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