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
  21 /* Components */
  22 #include "road.h"
  23 #include "scene.h"
  24 #include "ik.h"
  25 #include "audio.h"
  26 #include "terrain.h"
  27 #include "character.h"
  28 #include "ragdoll.h"
  29 #include "rigidbody.h"
  30 #include "render.h"
  31 #include "gate.h"
  32 #include "water.h"
  33 #include "world.h"
  34 #include "player.h"
  35
  36 #include "shaders/blit.h"
  37 #include "shaders/standard.h"
  38 #include "shaders/unlit.h"
  39
  40 void vg_register(void)
  41 {
  42    shader_blit_register();
  43    shader_standard_register();
  44    shader_vblend_register();
  45    shader_unlit_register();
  46
  47    world_register();
  48    character_register();
  49    water_register();
  50    gate_register();
  51 }
  52
  53 static void init_other(void)
  54 {
  55    render_init();
  56    gate_init();
  57    world_init();
  58    character_init();
  59    audio_init();
  60 }
  61
  62 vg_tex2d *texture_list[] =
  63 {
  64    &tex_norwey,
  65    &tex_gradients,
  66    &tex_grid,
  67    &tex_sky,
  68    &tex_cement,
  69    &tex_water,
  70    &tex_water_surf
  71 };
  72
  73 int main( int argc, char *argv[] )
  74 {
  75    vg_init( argc, argv, "Voyager Game Engine" );
  76 }
  77
  78 static int playermodel( int argc, char const *argv[] )
  79 {
  80    if( argc < 1 ) return 0;
  81
  82    glmesh old_mesh = player.mdl.mesh;
  83
  84    if( character_load( &player.mdl, argv[0] ) )
  85       mesh_free( &old_mesh );
  86
  87    return 1;
  88 }
  89
  90 void vg_start(void)
  91 {
  92    vg_convar_push( (struct vg_convar){
  93       .name = "freecam",
  94       .data = &freecam,
  95       .data_type = k_convar_dtype_i32,
  96       .opt_i32 = { .min=0, .max=1, .clamp=1 },
  97       .persistent = 1
  98    });
  99
 100    vg_convar_push( (struct vg_convar){
 101       .name = "grid",
 102       .data = &walk_grid_iterations,
 103       .data_type = k_convar_dtype_i32,
 104       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 105       .persistent = 1
 106    });
 107
 108    vg_convar_push( (struct vg_convar){
 109       .name = "ledit",
 110       .data = &lightedit,
 111       .data_type = k_convar_dtype_i32,
 112       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 113       .persistent = 1
 114    });
 115
 116    vg_convar_push( (struct vg_convar){
 117       .name = "walk_speed",
 118       .data = &k_walkspeed,
 119       .data_type = k_convar_dtype_f32,
 120       .opt_f32 = { .clamp = 0 },
 121       .persistent = 1
 122    });
 123
 124    vg_convar_push( (struct vg_convar){
 125       .name = "debugcam",
 126       .data = &sv_debugcam,
 127       .data_type = k_convar_dtype_i32,
 128       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 129       .persistent = 1
 130    });
 131
 132    vg_convar_push( (struct vg_convar){
 133       .name = "debugview",
 134       .data = &debugview,
 135       .data_type = k_convar_dtype_i32,
 136       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 137       .persistent = 1
 138    });
 139
 140         vg_function_push( (struct vg_cmd){
 141                 .name = "reset",
 142                 .function = reset_player
 143         });
 144
 145    vg_tex2d_init( texture_list, vg_list_size( texture_list ) );
 146
 147    init_other();
 148
 149    character_load( &player.mdl, "ch_mike" );
 150    character_init_ragdoll( &player.mdl );
 151
 152    world_load();
 153
 154    reset_player( 1, (const char *[]){ "start" } );
 155    player_transform_update();
 156 }
 157
 158 void vg_free(void)
 159 {
 160    vg_tex2d_free( texture_list, vg_list_size(texture_list) );
 161 }
 162
 163 void vg_update(void)
 164 {
 165    player_update();
 166 }
 167
 168 static void vg_framebuffer_resize( int w, int h )
 169 {
 170    render_fb_resize();
 171    gate_fb_resize();
 172    water_fb_resize();
 173 }
 174
 175 void vg_render(void)
 176 {
 177    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 178    glViewport( 0,0, vg_window_x, vg_window_y );
 179
 180    glDisable( GL_DEPTH_TEST );
 181    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 182    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 183
 184    float speed = freecam? 0.0f: v3_length( player.v );
 185    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 186    v3_muls( shake, speed*0.01f, shake );
 187
 188    m4x4f world_4x4;
 189    m4x3_expand( player.camera_inverse, world_4x4 );
 190
 191    gpipeline.fov = freecam? 60.0f: 135.0f; /* 120 */
 192    m4x4_projection( vg_pv, gpipeline.fov,
 193          (float)vg_window_x / (float)vg_window_y,
 194          0.1f, 2100.0f );
 195
 196    m4x4_mul( vg_pv, world_4x4, vg_pv );
 197
 198    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 199    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 200    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 201
 202    glEnable( GL_DEPTH_TEST );
 203
 204    /*
 205     * Draw world
 206     */
 207
 208    render_world( vg_pv, player.camera );
 209    render_water_texture( player.camera );
 210
 211    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 212    render_water_surface( vg_pv, player.camera );
 213
 214    vg_tex2d_bind( &tex_water, 1 );
 215
 216    for( int i=0; i<world.gate_count; i++ )
 217    {
 218       render_gate( &world.gates[i], player.camera );
 219    }
 220
 221
 222    /* Copy the RGB of what we have into the background buffer */
 223    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 224    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 225    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 226                       0,0, vg_window_x, vg_window_y,
 227                       GL_COLOR_BUFFER_BIT,
 228                       GL_LINEAR );
 229
 230    /* Clear out the colour buffer, but keep depth */
 231    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 232    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 233
 234    if( !player.is_dead )
 235       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 236    else
 237       glClear( GL_COLOR_BUFFER_BIT );
 238
 239    if( !player.is_dead )
 240    {
 241       m4x4_projection( vg_pv, gpipeline.fov,
 242             (float)vg_window_x / (float)vg_window_y,
 243             0.01f, 100.0f );
 244       m4x4_mul( vg_pv, world_4x4, vg_pv );
 245    }
 246    draw_player();
 247
 248    /* Draw back in the background
 249     *
 250     * TODO: need to disable alpha write in the terrain shader so this works
 251     *       again.
 252     */
 253    glEnable(GL_BLEND);
 254    glDisable(GL_DEPTH_TEST);
 255    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 256    glBlendEquation(GL_FUNC_ADD);
 257
 258    shader_blit_use();
 259    shader_blit_uTexMain( 0 );
 260    glActiveTexture(GL_TEXTURE0);
 261    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 262
 263    render_fsquad();
 264    glDisable(GL_BLEND);
 265
 266    /* Other shite */
 267    glDisable( GL_DEPTH_TEST );
 268    vg_lines_drawall( (float *)vg_pv );
 269    glViewport( 0,0, vg_window_x, vg_window_y );
 270 }
 271
 272 static void run_light_widget( struct light_widget *lw )
 273 {
 274    struct ui_checkbox c1 = { .data=&lw->enabled };
 275
 276    ui_checkbox( &ui_global_ctx, &c1 );
 277
 278    if( lw->enabled )
 279    {
 280       struct ui_slider_vector
 281          colour = { .min=0.0f, .max=2.0f, .len=3, .data=lw->colour },
 282          dir    = { .min=-VG_PIf, .max=VG_PIf, .len=2, .data=lw->dir };
 283
 284       ui_slider_vector( &ui_global_ctx, &colour );
 285       ui_global_ctx.cursor[1] += 4;
 286       ui_slider_vector( &ui_global_ctx, &dir );
 287    }
 288 }
 289
 290 void vg_ui(void)
 291 {
 292    char buf[20];
 293
 294 #if 0
 295    snprintf( buf, 20, "%.2fm/s", v3_length( player.v ) );
 296    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 297
 298    snprintf( buf, 20, "%.2f %.2f %.2f m/s",
 299          player.a[0], player.a[1], player.a[2] );
 300    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 301
 302    snprintf( buf, 20, "pos %.2f %.2f %.2f",
 303          player.co[0], player.co[1], player.co[2] );
 304    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 305
 306    if( vg_gamepad_ready )
 307    {
 308       for( int i=0; i<6; i++ )
 309       {
 310          snprintf( buf, 20, "%.2f", vg_gamepad.axes[i] );
 311          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 312       }
 313    }
 314    else
 315    {
 316       gui_text( (ui_px [2]){ 0, 60 },
 317             "Gamepad not ready", 1, k_text_align_left );
 318    }
 319 #endif
 320
 321    if( lightedit )
 322    {
 323       ui_global_ctx.cursor[0] = 10;
 324       ui_global_ctx.cursor[1] = 10;
 325       ui_global_ctx.cursor[2] = 200;
 326       ui_global_ctx.cursor[3] = 20;
 327
 328       struct ub_world_lighting *wl = &gpipeline.ub_world_lighting;
 329       struct ui_slider_vector
 330          s5 = { .min=0.0f, .max=2.0f, .len=3, .data=wl->g_ambient_colour };
 331
 332       struct ui_slider
 333          s8 = { .min=0.0f, .max=2.0f, .data = &gpipeline.shadow_spread },
 334          s9 = { .min=0.0f, .max=25.0f, .data = &gpipeline.shadow_length };
 335
 336       for( int i=0; i<3; i++ )
 337          run_light_widget( &gpipeline.widgets[i] );
 338
 339       gui_text( ui_global_ctx.cursor, "Ambient", 1, 0 );
 340       ui_global_ctx.cursor[1] += 16;
 341       ui_slider_vector( &ui_global_ctx, &s5 );
 342
 343       gui_text( ui_global_ctx.cursor, "Shadows", 1, 0 );
 344       ui_global_ctx.cursor[1] += 16;
 345       ui_slider( &ui_global_ctx, &s8 );
 346       ui_slider( &ui_global_ctx, &s9 );
 347
 348       gui_text( ui_global_ctx.cursor, "Misc", 1, 0 );
 349       ui_global_ctx.cursor[1] += 16;
 350       struct ui_checkbox c1 = {.data = &wl->g_light_preview};
 351       ui_checkbox( &ui_global_ctx, &c1 );
 352
 353       render_update_lighting_ub();
 354    }
 355 }