main.c

   1 #include "common.h"
   2
   3 /* Resources */
   4 vg_tex2d tex_norwey = { .path = "textures/norway_foliage.qoi" };
   5 vg_tex2d tex_grid = { .path = "textures/grid.qoi" };
   6 vg_tex2d tex_sky = { .path = "textures/sky.qoi" };
   7 vg_tex2d tex_gradients = { .path = "textures/gradients.qoi",
   8                            .flags = VG_TEXTURE_CLAMP };
   9 vg_tex2d tex_cement = { .path = "textures/cement512.qoi" };
  10 vg_tex2d tex_water = { .path = "textures/water.qoi" };
  11
  12 /* Convars */
  13 static int debugview = 0;
  14 static int sv_debugcam = 0;
  15
  16 /* Components */
  17 #include "road.h"
  18 #include "scene.h"
  19 #include "ik.h"
  20 #include "terrain.h"
  21 #include "character.h"
  22 #include "ragdoll.h"
  23 #include "rigidbody.h"
  24 #include "render.h"
  25 #include "gate.h"
  26 #include "water.h"
  27 #include "world.h"
  28 #include "player.h"
  29
  30 #include "shaders/blit.h"
  31 #include "shaders/standard.h"
  32 #include "shaders/unlit.h"
  33
  34 void vg_register(void)
  35 {
  36    shader_blit_register();
  37    shader_standard_register();
  38    shader_unlit_register();
  39
  40    terrain_register();
  41    character_register();
  42    water_register();
  43    gate_register();
  44 }
  45
  46 vg_tex2d *texture_list[] =
  47 {
  48    &tex_norwey,
  49    &tex_gradients,
  50    &tex_grid,
  51    &tex_sky,
  52    &tex_cement,
  53    &tex_water,
  54    &tex_water_surf
  55 };
  56
  57 int main( int argc, char *argv[] )
  58 {
  59    vg_init( argc, argv, "Voyager Game Engine" );
  60 }
  61
  62 #if 0
  63 rigidbody mr_box = {
  64    .bbx = {{ -1.0f, -0.25f, -0.25f }, { 1.0f, 0.25f, 0.25f }}
  65 };
  66
  67 rigidbody mrs_box = {
  68    .bbx = {{ -0.5f, -0.25f, -0.25f }, { 0.5f, 0.25f, 0.25f }}
  69 };
  70
  71 teleport_gate gate_a = {
  72    .co = { 0.0f, -3.0f, -15.0f },
  73    .q = { 0.0f, 0.0f, 0.0f, 1.0f }
  74 },
  75 gate_b = {
  76    .co = { -8.0f, -3.0f, -17.0f },
  77    .q = { 0.0f, 0.0f, 0.0f, 1.0f }
  78 };
  79 #endif
  80
  81 static int playermodel( int argc, char const *argv[] )
  82 {
  83    if( argc < 1 ) return 0;
  84
  85    glmesh old_mesh = player.mdl.mesh;
  86
  87    if( character_load( &player.mdl, argv[0] ) )
  88       mesh_free( &old_mesh );
  89
  90    return 1;
  91 }
  92
  93 void vg_start(void)
  94 {
  95    vg_convar_push( (struct vg_convar){
  96       .name = "freecam",
  97       .data = &freecam,
  98       .data_type = k_convar_dtype_i32,
  99       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 100       .persistent = 1
 101    });
 102
 103    vg_convar_push( (struct vg_convar){
 104       .name = "walk_speed",
 105       .data = &k_walkspeed,
 106       .data_type = k_convar_dtype_f32,
 107       .opt_f32 = { .clamp = 0 },
 108       .persistent = 1
 109    });
 110
 111    vg_convar_push( (struct vg_convar){
 112       .name = "debugcam",
 113       .data = &sv_debugcam,
 114       .data_type = k_convar_dtype_i32,
 115       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 116       .persistent = 1
 117    });
 118
 119    vg_convar_push( (struct vg_convar){
 120       .name = "debugview",
 121       .data = &debugview,
 122       .data_type = k_convar_dtype_i32,
 123       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 124       .persistent = 1
 125    });
 126
 127         vg_function_push( (struct vg_cmd){
 128                 .name = "reset",
 129                 .function = reset_player
 130         });
 131
 132    vg_tex2d_init( texture_list, vg_list_size( texture_list ) );
 133
 134    render_init();
 135    gate_init();
 136    terrain_init();
 137    character_init();
 138
 139    character_load( &player.mdl, "ch_default" );
 140    character_init_ragdoll( &player.mdl );
 141
 142    world_load();
 143
 144    reset_player( 1, (const char *[]){ "tutorial" } );
 145    player_transform_update();
 146 }
 147
 148 void vg_update(void)
 149 {
 150    player_update();
 151 }
 152
 153 static void vg_framebuffer_resize( int w, int h )
 154 {
 155    render_fb_resize();
 156    gate_fb_resize();
 157    water_fb_resize();
 158 }
 159
 160 void vg_render(void)
 161 {
 162    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 163    glViewport( 0,0, vg_window_x, vg_window_y );
 164
 165    glDisable( GL_DEPTH_TEST );
 166    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 167    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
 168
 169    float speed = freecam? 0.0f: v3_length( player.v );
 170    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 171    v3_muls( shake, speed*0.01f, shake );
 172
 173    if( player.is_dead )
 174    {
 175 #if 0
 176       v3f delta;
 177       v3_sub( player.mdl.ragdoll[k_chpart_head].co, player.follow, delta );
 178       v3_normalize(delta);
 179
 180       v3f follow_pos;
 181       v3_muladds( player.mdl.ragdoll[k_chpart_head].co, delta,
 182             -1.5f, follow_pos );
 183       v3_lerp( player.follow, follow_pos, 0.1f, player.follow );
 184       v3_negate( player.follow, final );
 185
 186
 187       float yaw = atan2f( delta[0], -delta[2] );
 188       float pitch = asinf( delta[1] );
 189       m4x3_rotate_x( world_matrix, -pitch );
 190       m4x3_rotate_y( world_matrix, yaw );
 191 #endif
 192    }
 193    else
 194    {
 195    }
 196
 197    m4x4f world_4x4;
 198    m4x3_expand( player.camera_inverse, world_4x4 );
 199
 200    gpipeline.fov = freecam? 60.0f: 100.0f; /* 120 */
 201    m4x4_projection( vg_pv, gpipeline.fov,
 202          (float)vg_window_x / (float)vg_window_y,
 203          0.025f, 1000.0f );
 204
 205    m4x4_mul( vg_pv, world_4x4, vg_pv );
 206
 207    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 208    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 209    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 210
 211    glEnable( GL_DEPTH_TEST );
 212
 213    /*
 214     * Draw world
 215     */
 216
 217    render_world( vg_pv, player.camera );
 218    render_water_texture( player.camera );
 219
 220    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 221    render_water_surface( vg_pv );
 222
 223 #if 0
 224    vg_tex2d_bind( &tex_water, 1 );
 225    render_gate( &gate_a, cam_transform );
 226 #endif
 227
 228
 229    /* Copy the RGB of what we have into the background buffer */
 230    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 231    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 232    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 233                       0,0, vg_window_x, vg_window_y,
 234                       GL_COLOR_BUFFER_BIT,
 235                       GL_LINEAR );
 236
 237    /* Clear out the colour buffer, but keep depth */
 238    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 239    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 240
 241    if( !player.is_dead )
 242       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 243    else
 244       glClear( GL_COLOR_BUFFER_BIT );
 245
 246    draw_player();
 247
 248    /* Draw back in the background */
 249    glEnable(GL_BLEND);
 250    glDisable(GL_DEPTH_TEST);
 251    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 252    glBlendEquation(GL_FUNC_ADD);
 253
 254    shader_blit_use();
 255    shader_blit_uTexMain( 0 );
 256    glActiveTexture(GL_TEXTURE0);
 257    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 258
 259    render_fsquad();
 260    glDisable(GL_BLEND);
 261
 262    /* Other shite */
 263    glDisable( GL_DEPTH_TEST );
 264    vg_lines_drawall( (float *)vg_pv );
 265
 266    /* Debugger camera */
 267 #if 0
 268    glViewport( 0,0, 800, 800 );
 269    glClearColor( 0.1f, 0.0f, 0.2f, 1.0f );
 270    glClear( GL_DEPTH_BUFFER_BIT );
 271
 272    m4x3_identity( world_matrix );
 273
 274    v3f debugcam;
 275    v3_negate( player.co, debugcam );
 276    debugcam[2] -= 2.0f;
 277    debugcam[1] -= 0.7f;
 278
 279    m4x3_translate( world_matrix, debugcam );
 280    m4x3_expand( world_matrix, world_4x4 );
 281
 282    m4x4_projection( vg_pv,
 283          100.0f,
 284          (float)128.0f / (float)128.0f,
 285          0.1f, 1000.0f );
 286    m4x4_mul( vg_pv, world_4x4, vg_pv );
 287
 288    if(sv_debugcam)
 289    {
 290       glEnable( GL_DEPTH_TEST );
 291       draw_player();
 292    }
 293 #endif
 294
 295    glDisable( GL_DEPTH_TEST );
 296    vg_lines_drawall( (float *)vg_pv );
 297
 298    glViewport( 0,0, vg_window_x, vg_window_y );
 299 }
 300
 301 void vg_ui(void)
 302 {
 303    char buf[20];
 304
 305    snprintf( buf, 20, "%.2fm/s", v3_length( player.v ) );
 306    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 307
 308    snprintf( buf, 20, "%.2f %.2f %.2f m/s",
 309          player.a[0], player.a[1], player.a[2] );
 310    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 311
 312    snprintf( buf, 20, "pos %.2f %.2f %.2f",
 313          player.co[0], player.co[1], player.co[2] );
 314    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 315
 316    if( vg_gamepad_ready )
 317    {
 318       for( int i=0; i<6; i++ )
 319       {
 320          snprintf( buf, 20, "%.2f", vg_gamepad.axes[i] );
 321          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 322       }
 323    }
 324    else
 325    {
 326       gui_text( (ui_px [2]){ 0, 60 },
 327             "Gamepad not ready", 1, k_text_align_left );
 328    }
 329 }
 330
 331 void vg_free(void){}