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  .        . .       -----, ,----- ,---.   .---.  " );
  54 vg_info(" 2021-2022  |\\      /| |           /  |      |    | |    /| " );
  55 vg_info("            | \\    / | +--        /   +----- +---'  |   / | " );
  56 vg_info("            |  \\  /  | |         /    |      |   \\  |  /  | " );
  57 vg_info("            |   \\/   | |        /     |      |    \\ | /   | " );
  58 vg_info("            '        ' '--' [] '----- '----- '     ' '---'  "
  59         "SOFTWARE" );
  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();
 110       world_update( player.phys.rb.co );
 111    }
 112 }
 113
 114 static void vg_framebuffer_resize( int w, int h )
 115 {
 116    render_fb_resize();
 117    gate_fb_resize();
 118    water_fb_resize();
 119 }
 120
 121 static void render_main_game(void)
 122 {
 123    /* TODO Breakup this & Gen */
 124 #if 0
 125    float speed = freecam? 0.0f: v3_length( player.phys.rb.v );
 126    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 127    v3_muls( shake, speed*0.01f, shake );
 128 #endif
 129
 130    m4x4f world_4x4;
 131    m4x3_expand( player.camera_inverse, world_4x4 );
 132
 133    gpipeline.fov = freecam? 60.0f: 125.0f; /* 120 */
 134    m4x4_projection( vg_pv, gpipeline.fov,
 135          (float)vg_window_x / (float)vg_window_y,
 136          0.02f, 2100.0f );
 137
 138    m4x4_mul( vg_pv, world_4x4, vg_pv );
 139
 140    glEnable( GL_DEPTH_TEST );
 141
 142    /*
 143     * Draw world
 144     */
 145
 146    int draw_solid = player.is_dead | freecam;
 147
 148    render_world( vg_pv, player.camera );
 149    if( draw_solid )
 150       draw_player();
 151    render_water_texture( player.camera );
 152
 153    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 154    render_water_surface( vg_pv, player.camera );
 155
 156    render_world_gates( vg_pv, player.phys.rb.co, player.camera );
 157
 158    /* Copy the RGB of what we have into the background buffer */
 159    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 160    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 161    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 162                       0,0, vg_window_x, vg_window_y,
 163                       GL_COLOR_BUFFER_BIT,
 164                       GL_LINEAR );
 165
 166    /* Clear out the colour buffer, but keep depth */
 167    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 168    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 169
 170    if( !player.is_dead )
 171       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 172    else
 173       glClear( GL_COLOR_BUFFER_BIT );
 174
 175    if( !draw_solid )
 176    {
 177       m4x4_projection( vg_pv, gpipeline.fov,
 178             (float)vg_window_x / (float)vg_window_y,
 179             0.01f, 600.0f );
 180       m4x4_mul( vg_pv, world_4x4, vg_pv );
 181       draw_player();
 182    }
 183
 184    /* Draw back in the background
 185     *
 186     * TODO: need to disable alpha write in the terrain shader so this works
 187     *       again.
 188     */
 189    glEnable(GL_BLEND);
 190    glDisable(GL_DEPTH_TEST);
 191    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 192    glBlendEquation(GL_FUNC_ADD);
 193
 194    shader_blit_use();
 195    shader_blit_uTexMain( 0 );
 196    glActiveTexture(GL_TEXTURE0);
 197    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 198
 199    render_fsquad();
 200 }
 201
 202 void vg_render(void)
 203 {
 204    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 205    glViewport( 0,0, vg_window_x, vg_window_y );
 206    glDisable( GL_DEPTH_TEST );
 207
 208    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 209    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 210
 211    render_main_game();
 212
 213
 214    /* Other shite */
 215    glDisable(GL_BLEND);
 216    glDisable( GL_DEPTH_TEST );
 217    vg_lines_drawall( (float *)vg_pv );
 218    glViewport( 0,0, vg_window_x, vg_window_y );
 219 }
 220
 221 void vg_ui(void)
 222 {
 223 #if 0
 224    if( lightedit )
 225    {
 226       ui_global_ctx.cursor[0] = 10;
 227       ui_global_ctx.cursor[1] = 10;
 228       ui_global_ctx.cursor[2] = 200;
 229       ui_global_ctx.cursor[3] = 20;
 230
 231       struct ub_world_lighting *wl = &gpipeline.ub_world_lighting;
 232       struct ui_slider_vector
 233          s5 = { .min=0.0f, .max=2.0f, .len=3, .data=wl->g_ambient_colour };
 234
 235       struct ui_slider
 236          s8 = { .min=0.0f, .max=2.0f, .data = &gpipeline.shadow_spread },
 237          s9 = { .min=0.0f, .max=25.0f, .data = &gpipeline.shadow_length };
 238
 239       for( int i=0; i<3; i++ )
 240          run_light_widget( &gpipeline.widgets[i] );
 241
 242       gui_text( ui_global_ctx.cursor, "Ambient", 1, 0 );
 243       ui_global_ctx.cursor[1] += 16;
 244       ui_slider_vector( &ui_global_ctx, &s5 );
 245
 246       gui_text( ui_global_ctx.cursor, "Shadows", 1, 0 );
 247       ui_global_ctx.cursor[1] += 16;
 248       ui_slider( &ui_global_ctx, &s8 );
 249       ui_slider( &ui_global_ctx, &s9 );
 250
 251       gui_text( ui_global_ctx.cursor, "Misc", 1, 0 );
 252       ui_global_ctx.cursor[1] += 16;
 253       struct ui_checkbox c1 = {.data = &wl->g_light_preview};
 254       ui_checkbox( &ui_global_ctx, &c1 );
 255
 256       render_update_lighting_ub();
 257    }
 258 #endif
 259
 260    //glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
 261    if( cl_ui )
 262    {
 263       render_world_routes_ui();
 264    }
 265    //glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
 266
 267    audio_debug_soundscapes();
 268 }
 269
 270 #if 0
 271 static void run_light_widget( struct light_widget *lw )
 272 {
 273    struct ui_checkbox c1 = { .data=&lw->enabled };
 274
 275    ui_checkbox( &ui_global_ctx, &c1 );
 276
 277    if( lw->enabled )
 278    {
 279       struct ui_slider_vector
 280          colour = { .min=0.0f, .max=2.0f, .len=3, .data=lw->colour },
 281          dir    = { .min=-VG_PIf, .max=VG_PIf, .len=2, .data=lw->dir };
 282
 283       ui_slider_vector( &ui_global_ctx, &colour );
 284       ui_global_ctx.cursor[1] += 4;
 285       ui_slider_vector( &ui_global_ctx, &dir );
 286    }
 287 }
 288 #endif
 289
 290 static void run_debug_info(void)
 291 {
 292    char buf[40];
 293
 294    snprintf( buf, 40, "%.2fm/s", v3_length( player.phys.rb.v ) );
 295    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 296
 297    snprintf( buf, 40, "%.2f %.2f %.2f m/s",
 298          player.phys.a[0], player.phys.a[1], player.phys.a[2] );
 299    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 300
 301    snprintf( buf, 40, "pos %.2f %.2f %.2f",
 302          player.phys.rb.co[0], player.phys.rb.co[1], player.phys.rb.co[2] );
 303    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 304
 305    if( vg.gamepad_ready )
 306    {
 307       for( int i=0; i<6; i++ )
 308       {
 309          snprintf( buf, 40, "%.2f", vg.gamepad.axes[i] );
 310          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 311       }
 312    }
 313    else
 314    {
 315       gui_text( (ui_px [2]){ 0, 60 },
 316             "Gamepad not ready", 1, k_text_align_left );
 317    }
 318 }