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 = 0;
  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
  51 void vg_register(void)
  52 {
  53    shader_blit_register();
  54    shader_standard_register();
  55    shader_vblend_register();
  56    shader_unlit_register();
  57
  58    world_register();
  59    character_register();
  60    water_register();
  61    gate_register();
  62 }
  63
  64 static void init_other(void)
  65 {
  66    player_init();
  67    render_init();
  68    gate_init();
  69    world_init();
  70    character_init();
  71    audio_init();
  72 }
  73
  74 vg_tex2d *texture_list[] =
  75 {
  76    &tex_norwey,
  77    &tex_gradients,
  78    &tex_grid,
  79    &tex_sky,
  80    &tex_cement,
  81    &tex_water,
  82    &tex_water_surf
  83 };
  84
  85 int main( int argc, char *argv[] )
  86 {
  87    vg_init( argc, argv, "Voyager Game Engine" );
  88 }
  89
  90 static int playermodel( int argc, char const *argv[] )
  91 {
  92    if( argc < 1 ) return 0;
  93
  94    glmesh old_mesh = player.mdl.mesh;
  95
  96    if( character_load( &player.mdl, argv[0] ) )
  97       mesh_free( &old_mesh );
  98
  99    return 1;
 100 }
 101
 102 void vg_start(void)
 103 {
 104    steam_init();
 105
 106    vg_convar_push( (struct vg_convar){
 107       .name = "fc",
 108       .data = &freecam,
 109       .data_type = k_convar_dtype_i32,
 110       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 111       .persistent = 1
 112    });
 113
 114    vg_convar_push( (struct vg_convar){
 115       .name = "grid",
 116       .data = &walk_grid_iterations,
 117       .data_type = k_convar_dtype_i32,
 118       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 119       .persistent = 1
 120    });
 121
 122    vg_convar_push( (struct vg_convar){
 123       .name = "ledit",
 124       .data = &lightedit,
 125       .data_type = k_convar_dtype_i32,
 126       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 127       .persistent = 1
 128    });
 129
 130    vg_convar_push( (struct vg_convar){
 131       .name = "walk_speed",
 132       .data = &k_walkspeed,
 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 = "dt",
 140       .data = &ktimestep,
 141       .data_type = k_convar_dtype_f32,
 142       .opt_f32 = { .clamp = 0 },
 143       .persistent = 0
 144    });
 145
 146    vg_convar_push( (struct vg_convar){
 147       .name = "debugcam",
 148       .data = &sv_debugcam,
 149       .data_type = k_convar_dtype_i32,
 150       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 151       .persistent = 1
 152    });
 153
 154    vg_convar_push( (struct vg_convar){
 155       .name = "debugview",
 156       .data = &debugview,
 157       .data_type = k_convar_dtype_i32,
 158       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 159       .persistent = 1
 160    });
 161
 162         vg_function_push( (struct vg_cmd){
 163                 .name = "reset",
 164                 .function = reset_player
 165         });
 166
 167    vg_tex2d_init( texture_list, vg_list_size( texture_list ) );
 168
 169    init_other();
 170
 171    /*
 172     * If we're in physics test mode we dont need to load anything else, this
 173     * parameter is dev only. TODO: dev only cvars that don't ship with the game
 174     * when building in release mode.
 175     */
 176
 177    if( sv_scene == 0 )
 178    {
 179       character_load( &player.mdl, "ch_default" );
 180       character_init_ragdoll( &player.mdl );
 181
 182       world_load();
 183
 184       reset_player( 1, (const char *[]){ "start" } );
 185       rb_init( &player.rb );
 186
 187       network_init();
 188    }
 189    else
 190    {
 191       physics_test_start();
 192    }
 193 }
 194
 195 void vg_free(void)
 196 {
 197    network_end();
 198    vg_tex2d_free( texture_list, vg_list_size(texture_list) );
 199    /* TODO: THE REST OF THE GOD DAMN FREEING STUFF */
 200    steam_end();
 201 }
 202
 203 void vg_update(void)
 204 {
 205    steam_update();
 206
 207    if( sv_scene == 0 )
 208    {
 209       network_update();
 210       player_update();
 211       world_update();
 212       //traffic_visualize( world.traffic, world.traffic_count );
 213       //
 214       /* TEMP */
 215       if( glfwGetKey( vg_window, GLFW_KEY_J ))
 216       {
 217          v3_copy( player.camera_pos, world.mr_ball.co );
 218       }
 219    }
 220    else if( sv_scene == 1 )
 221    {
 222       physics_test_update();
 223    }
 224 }
 225
 226 static void vg_framebuffer_resize( int w, int h )
 227 {
 228    render_fb_resize();
 229    gate_fb_resize();
 230    water_fb_resize();
 231 }
 232
 233 static void draw_origin_axis(void)
 234 {
 235    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 236    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 237    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 238 }
 239
 240 static void render_main_game(void)
 241 {
 242    float speed = freecam? 0.0f: v3_length( player.rb.v );
 243    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 244    v3_muls( shake, speed*0.01f, shake );
 245
 246    m4x4f world_4x4;
 247    m4x3_expand( player.camera_inverse, world_4x4 );
 248
 249    gpipeline.fov = freecam? 60.0f: 135.0f; /* 120 */
 250    m4x4_projection( vg_pv, gpipeline.fov,
 251          (float)vg_window_x / (float)vg_window_y,
 252          0.02f, 2100.0f );
 253
 254    m4x4_mul( vg_pv, world_4x4, vg_pv );
 255
 256    glEnable( GL_DEPTH_TEST );
 257
 258    /*
 259     * Draw world
 260     */
 261
 262    render_world( vg_pv, player.camera );
 263    render_water_texture( player.camera );
 264
 265    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 266    render_water_surface( vg_pv, player.camera );
 267
 268    vg_tex2d_bind( &tex_water, 1 ); /*TODO: ?*/
 269    render_world_gates( vg_pv, player.camera );
 270
 271    /* Copy the RGB of what we have into the background buffer */
 272    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 273    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 274    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 275                       0,0, vg_window_x, vg_window_y,
 276                       GL_COLOR_BUFFER_BIT,
 277                       GL_LINEAR );
 278
 279    /* Clear out the colour buffer, but keep depth */
 280    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 281    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 282
 283    if( !player.is_dead )
 284       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 285    else
 286       glClear( GL_COLOR_BUFFER_BIT );
 287
 288    if( !player.is_dead )
 289    {
 290       m4x4_projection( vg_pv, gpipeline.fov,
 291             (float)vg_window_x / (float)vg_window_y,
 292             0.04f, 600.0f );
 293       m4x4_mul( vg_pv, world_4x4, vg_pv );
 294    }
 295    draw_player();
 296
 297    /* Draw back in the background
 298     *
 299     * TODO: need to disable alpha write in the terrain shader so this works
 300     *       again.
 301     */
 302    glEnable(GL_BLEND);
 303    glDisable(GL_DEPTH_TEST);
 304    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 305    glBlendEquation(GL_FUNC_ADD);
 306
 307    shader_blit_use();
 308    shader_blit_uTexMain( 0 );
 309    glActiveTexture(GL_TEXTURE0);
 310    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 311
 312    render_fsquad();
 313    glDisable(GL_BLEND);
 314
 315    /* Other shite */
 316    glDisable( GL_DEPTH_TEST );
 317    vg_lines_drawall( (float *)vg_pv );
 318    glViewport( 0,0, vg_window_x, vg_window_y );
 319 }
 320
 321 void vg_render(void)
 322 {
 323    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 324    glViewport( 0,0, vg_window_x, vg_window_y );
 325
 326    glDisable( GL_DEPTH_TEST );
 327    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 328    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 329
 330 #ifndef SR_NETWORK_TEST
 331    draw_origin_axis();
 332
 333    if( sv_scene == 0 )
 334    {
 335       render_main_game();
 336    }
 337    else if( sv_scene == 1 )
 338    {
 339       physics_test_render();
 340    }
 341 #endif
 342 }
 343
 344 static void run_light_widget( struct light_widget *lw )
 345 {
 346    struct ui_checkbox c1 = { .data=&lw->enabled };
 347
 348    ui_checkbox( &ui_global_ctx, &c1 );
 349
 350    if( lw->enabled )
 351    {
 352       struct ui_slider_vector
 353          colour = { .min=0.0f, .max=2.0f, .len=3, .data=lw->colour },
 354          dir    = { .min=-VG_PIf, .max=VG_PIf, .len=2, .data=lw->dir };
 355
 356       ui_slider_vector( &ui_global_ctx, &colour );
 357       ui_global_ctx.cursor[1] += 4;
 358       ui_slider_vector( &ui_global_ctx, &dir );
 359    }
 360 }
 361
 362 static void run_debug_info(void)
 363 {
 364    char buf[40];
 365
 366    snprintf( buf, 40, "%.2fm/s", v3_length( player.rb.v ) );
 367    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 368
 369    snprintf( buf, 40, "%.2f %.2f %.2f m/s",
 370          player.a[0], player.a[1], player.a[2] );
 371    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 372
 373    snprintf( buf, 40, "pos %.2f %.2f %.2f",
 374          player.rb.co[0], player.rb.co[1], player.rb.co[2] );
 375    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 376
 377    if( vg_gamepad_ready )
 378    {
 379       for( int i=0; i<6; i++ )
 380       {
 381          snprintf( buf, 40, "%.2f", vg_gamepad.axes[i] );
 382          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 383       }
 384    }
 385    else
 386    {
 387       gui_text( (ui_px [2]){ 0, 60 },
 388             "Gamepad not ready", 1, k_text_align_left );
 389    }
 390 }
 391
 392 void vg_ui(void)
 393 {
 394    if( lightedit )
 395    {
 396       ui_global_ctx.cursor[0] = 10;
 397       ui_global_ctx.cursor[1] = 10;
 398       ui_global_ctx.cursor[2] = 200;
 399       ui_global_ctx.cursor[3] = 20;
 400
 401       struct ub_world_lighting *wl = &gpipeline.ub_world_lighting;
 402       struct ui_slider_vector
 403          s5 = { .min=0.0f, .max=2.0f, .len=3, .data=wl->g_ambient_colour };
 404
 405       struct ui_slider
 406          s8 = { .min=0.0f, .max=2.0f, .data = &gpipeline.shadow_spread },
 407          s9 = { .min=0.0f, .max=25.0f, .data = &gpipeline.shadow_length };
 408
 409       for( int i=0; i<3; i++ )
 410          run_light_widget( &gpipeline.widgets[i] );
 411
 412       gui_text( ui_global_ctx.cursor, "Ambient", 1, 0 );
 413       ui_global_ctx.cursor[1] += 16;
 414       ui_slider_vector( &ui_global_ctx, &s5 );
 415
 416       gui_text( ui_global_ctx.cursor, "Shadows", 1, 0 );
 417       ui_global_ctx.cursor[1] += 16;
 418       ui_slider( &ui_global_ctx, &s8 );
 419       ui_slider( &ui_global_ctx, &s9 );
 420
 421       gui_text( ui_global_ctx.cursor, "Misc", 1, 0 );
 422       ui_global_ctx.cursor[1] += 16;
 423       struct ui_checkbox c1 = {.data = &wl->g_light_preview};
 424       ui_checkbox( &ui_global_ctx, &c1 );
 425
 426       render_update_lighting_ub();
 427    }
 428 }