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
  20 /* Components */
  21 #include "road.h"
  22 #include "scene.h"
  23 #include "ik.h"
  24 #include "audio.h"
  25 #include "terrain.h"
  26 #include "character.h"
  27 #include "ragdoll.h"
  28 #include "rigidbody.h"
  29 #include "render.h"
  30 #include "gate.h"
  31 #include "water.h"
  32 #include "world.h"
  33 #include "player.h"
  34
  35 #include "shaders/blit.h"
  36 #include "shaders/standard.h"
  37 #include "shaders/unlit.h"
  38
  39 void vg_register(void)
  40 {
  41    shader_blit_register();
  42    shader_standard_register();
  43    shader_unlit_register();
  44
  45    terrain_register();
  46    character_register();
  47    water_register();
  48    gate_register();
  49 }
  50
  51 static void init_other(void)
  52 {
  53    render_init();
  54    gate_init();
  55    terrain_init();
  56    character_init();
  57    audio_init();
  58 }
  59
  60 vg_tex2d *texture_list[] =
  61 {
  62    &tex_norwey,
  63    &tex_gradients,
  64    &tex_grid,
  65    &tex_sky,
  66    &tex_cement,
  67    &tex_water,
  68    &tex_water_surf
  69 };
  70
  71 int main( int argc, char *argv[] )
  72 {
  73    vg_init( argc, argv, "Voyager Game Engine" );
  74 }
  75
  76 static int playermodel( int argc, char const *argv[] )
  77 {
  78    if( argc < 1 ) return 0;
  79
  80    glmesh old_mesh = player.mdl.mesh;
  81
  82    if( character_load( &player.mdl, argv[0] ) )
  83       mesh_free( &old_mesh );
  84
  85    return 1;
  86 }
  87
  88 void vg_start(void)
  89 {
  90    vg_convar_push( (struct vg_convar){
  91       .name = "freecam",
  92       .data = &freecam,
  93       .data_type = k_convar_dtype_i32,
  94       .opt_i32 = { .min=0, .max=1, .clamp=1 },
  95       .persistent = 1
  96    });
  97
  98    vg_convar_push( (struct vg_convar){
  99       .name = "grid",
 100       .data = &walk_grid_iterations,
 101       .data_type = k_convar_dtype_i32,
 102       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 103       .persistent = 1
 104    });
 105
 106    vg_convar_push( (struct vg_convar){
 107       .name = "walk_speed",
 108       .data = &k_walkspeed,
 109       .data_type = k_convar_dtype_f32,
 110       .opt_f32 = { .clamp = 0 },
 111       .persistent = 1
 112    });
 113
 114    vg_convar_push( (struct vg_convar){
 115       .name = "debugcam",
 116       .data = &sv_debugcam,
 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 = "debugview",
 124       .data = &debugview,
 125       .data_type = k_convar_dtype_i32,
 126       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 127       .persistent = 1
 128    });
 129
 130         vg_function_push( (struct vg_cmd){
 131                 .name = "reset",
 132                 .function = reset_player
 133         });
 134
 135    vg_tex2d_init( texture_list, vg_list_size( texture_list ) );
 136
 137    init_other();
 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_free(void)
 149 {
 150    vg_tex2d_free( texture_list, vg_list_size(texture_list) );
 151 }
 152
 153 void vg_update(void)
 154 {
 155    player_update();
 156 }
 157
 158 static void vg_framebuffer_resize( int w, int h )
 159 {
 160    render_fb_resize();
 161    gate_fb_resize();
 162    water_fb_resize();
 163 }
 164
 165 void vg_render(void)
 166 {
 167    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 168    glViewport( 0,0, vg_window_x, vg_window_y );
 169
 170    glDisable( GL_DEPTH_TEST );
 171    glClearColor( 0.11f, 0.35f, 0.37f, 1.0f );
 172    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
 173
 174    float speed = freecam? 0.0f: v3_length( player.v );
 175    v3f shake = { vg_randf()-0.5f, vg_randf()-0.5f, vg_randf()-0.5f };
 176    v3_muls( shake, speed*0.01f, shake );
 177
 178    m4x4f world_4x4;
 179    m4x3_expand( player.camera_inverse, world_4x4 );
 180
 181    gpipeline.fov = freecam? 60.0f: 135.0f; /* 120 */
 182    m4x4_projection( vg_pv, gpipeline.fov,
 183          (float)vg_window_x / (float)vg_window_y,
 184          0.1f, 1500.0f );
 185
 186    m4x4_mul( vg_pv, world_4x4, vg_pv );
 187
 188    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 1.0f, 0.0f, 0.0f }, 0xffff0000 );
 189    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 1.0f, 0.0f }, 0xff00ff00 );
 190    vg_line( (v3f){ 0.0f, 0.0f, 0.0f }, (v3f){ 0.0f, 0.0f, 1.0f }, 0xff0000ff );
 191
 192    glEnable( GL_DEPTH_TEST );
 193
 194    /*
 195     * Draw world
 196     */
 197
 198    render_world( vg_pv, player.camera );
 199    render_water_texture( player.camera );
 200
 201    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 202    render_water_surface( vg_pv, player.camera );
 203
 204    vg_tex2d_bind( &tex_water, 1 );
 205
 206    for( int i=0; i<world.gate_count; i++ )
 207    {
 208       render_gate( &world.gates[i], player.camera );
 209    }
 210
 211
 212    /* Copy the RGB of what we have into the background buffer */
 213    glBindFramebuffer( GL_READ_FRAMEBUFFER, 0 );
 214    glBindFramebuffer( GL_DRAW_FRAMEBUFFER, gpipeline.fb_background );
 215    glBlitFramebuffer( 0,0, vg_window_x, vg_window_y,
 216                       0,0, vg_window_x, vg_window_y,
 217                       GL_COLOR_BUFFER_BIT,
 218                       GL_LINEAR );
 219
 220    /* Clear out the colour buffer, but keep depth */
 221    glBindFramebuffer( GL_FRAMEBUFFER, 0 );
 222    glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
 223
 224    if( !player.is_dead )
 225       glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
 226    else
 227       glClear( GL_COLOR_BUFFER_BIT );
 228
 229    draw_player();
 230
 231    /* Draw back in the background
 232     *
 233     * TODO: need to disable alpha write in the terrain shader so this works
 234     *       again.
 235     */
 236    glEnable(GL_BLEND);
 237    glDisable(GL_DEPTH_TEST);
 238    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
 239    glBlendEquation(GL_FUNC_ADD);
 240
 241    shader_blit_use();
 242    shader_blit_uTexMain( 0 );
 243    glActiveTexture(GL_TEXTURE0);
 244    glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
 245
 246    render_fsquad();
 247    glDisable(GL_BLEND);
 248
 249    /* Other shite */
 250    glDisable( GL_DEPTH_TEST );
 251    vg_lines_drawall( (float *)vg_pv );
 252    glViewport( 0,0, vg_window_x, vg_window_y );
 253 }
 254
 255 void vg_ui(void)
 256 {
 257    char buf[20];
 258
 259    snprintf( buf, 20, "%.2fm/s", v3_length( player.v ) );
 260    gui_text( (ui_px [2]){ 0, 0 }, buf, 1, k_text_align_left );
 261
 262    snprintf( buf, 20, "%.2f %.2f %.2f m/s",
 263          player.a[0], player.a[1], player.a[2] );
 264    gui_text( (ui_px [2]){ 0, 20 }, buf, 1, k_text_align_left );
 265
 266    snprintf( buf, 20, "pos %.2f %.2f %.2f",
 267          player.co[0], player.co[1], player.co[2] );
 268    gui_text( (ui_px [2]){ 0, 40 }, buf, 1, k_text_align_left );
 269
 270    if( vg_gamepad_ready )
 271    {
 272       for( int i=0; i<6; i++ )
 273       {
 274          snprintf( buf, 20, "%.2f", vg_gamepad.axes[i] );
 275          gui_text( (ui_px [2]){ 0, (i+3)*20 }, buf, 1, k_text_align_left );
 276       }
 277    }
 278    else
 279    {
 280       gui_text( (ui_px [2]){ 0, 60 },
 281             "Gamepad not ready", 1, k_text_align_left );
 282    }
 283 }