world.h

   1 #ifndef WORLD_H
   2 #define WORLD_H
   3
   4 #define VG_3D
   5 #include "vg/vg.h"
   6
   7 #include "scene.h"
   8 #include "terrain.h"
   9 #include "render.h"
  10 #include "water.h"
  11
  12 #include "shaders/standard.h"
  13
  14 static struct gworld
  15 {
  16    scene geo, foliage;
  17    submodel sm_road, sm_terrain;
  18    glmesh skybox;
  19
  20    v3f tutorial;
  21 }
  22 world;
  23
  24 static void render_world( m4x4f projection, m4x3f camera )
  25 {
  26    render_sky( camera );
  27
  28    m4x3f identity_matrix;
  29    m4x3_identity( identity_matrix );
  30
  31    render_terrain( projection );
  32    scene_bind( &world.geo );
  33    scene_draw( &world.geo );
  34
  35    glDisable(GL_CULL_FACE);
  36    scene_bind( &world.foliage );
  37    scene_draw( &world.foliage );
  38    glEnable(GL_CULL_FACE);
  39 }
  40
  41 static int ray_world( v3f pos, v3f dir, ray_hit *hit )
  42 {
  43    return bvh_raycast( &world.geo, pos, dir, hit );
  44 }
  45
  46 static int ray_hit_is_ramp( ray_hit *hit )
  47 {
  48    return hit->tri[0] < world.sm_road.vertex_count;
  49 }
  50
  51 static void world_init_default(void)
  52 {
  53    /* Setup scene */
  54    scene_init( &world.geo );
  55    model *mworld = vg_asset_read( "models/mp_dev.mdl" );
  56
  57    scene_add_model( &world.geo, mworld, submodel_get( mworld, "mp_dev" ),
  58          (v3f){0.0f,0.0f,0.0f}, 0.0f, 1.0f );
  59    scene_copy_slice( &world.geo, &world.sm_road );
  60
  61    scene_add_model( &world.geo, mworld, submodel_get( mworld, "terrain" ),
  62          (v3f){0.0f,0.0f,0.0f}, 0.0f, 1.0f );
  63    scene_copy_slice( &world.geo, &world.sm_terrain );
  64
  65    v3_copy( model_marker_get( mworld, "mp_dev_tutorial" )->co, world.tutorial );
  66
  67
  68    /* GATE DEV */
  69 #if 0
  70    {
  71       model_marker *ga = model_marker_get(mworld,"gate_a"),
  72                    *gb = model_marker_get(mworld,"gate_a_recv");
  73
  74       v3_copy( ga->co, gate_a.co );
  75       v3_copy( gb->co, gate_b.co );
  76       v4_copy( ga->q, gate_a.q );
  77       v4_copy( gb->q, gate_b.q );
  78       v2_copy( ga->s, gate_a.dims );
  79       v2_copy( gb->s, gate_b.dims );
  80
  81       gate_a.other = &gate_b;
  82       gate_b.other = &gate_a;
  83
  84       gate_transform_update( &gate_a );
  85       gate_transform_update( &gate_b );
  86    }
  87 #endif
  88
  89    /* WATER DEV */
  90    {
  91       glmesh surf;
  92       submodel *sm = submodel_get(mworld,"mp_dev_water");
  93       model_unpack_submodel( mworld, &surf, sm );
  94
  95       water_init();
  96       water_set_surface( &surf, sm->pivot[1] );
  97    }
  98
  99    free( mworld );
 100    scene_upload( &world.geo );
 101    bvh_create( &world.geo );
 102
 103
 104
 105    scene_init( &world.foliage );
 106    model *mfoliage = vg_asset_read("models/rs_foliage.mdl");
 107
 108    v3f volume;
 109    v3_sub( world.geo.bbx[1], world.geo.bbx[0], volume );
 110    volume[1] = 1.0f;
 111
 112    m4x3f transform;
 113
 114    for( int i=0;i<100000;i++ )
 115    {
 116       v3f pos;
 117       v3_mul( volume, (v3f){ vg_randf(), 1000.0f, vg_randf() }, pos );
 118       v3_add( pos, world.geo.bbx[0], pos );
 119
 120       ray_hit hit;
 121       hit.dist = INFINITY;
 122
 123       if( ray_world( pos, (v3f){0.0f,-1.0f,0.0f}, &hit ))
 124       {
 125          if( hit.normal[1] > 0.8f && !ray_hit_is_ramp(&hit) )
 126          {
 127             v4f qsurface, qrandom;
 128             v3f axis;
 129
 130             v3_cross( (v3f){0.0f,1.0f,0.0f}, hit.normal, axis );
 131
 132             float angle = v3_dot(hit.normal,(v3f){0.0f,1.0f,0.0f});
 133             q_axis_angle( qsurface, axis, angle );
 134             q_axis_angle( qrandom, (v3f){0.0f,1.0f,0.0f}, vg_randf()*VG_TAUf );
 135             q_mul( qsurface, qrandom, qsurface );
 136             q_m3x3( qsurface, transform );
 137
 138             v3_copy( hit.pos, transform[3] );
 139
 140             scene_add_foliage( &world.foliage, mfoliage,
 141                   model_get_submodel( mfoliage, 0 ), transform );
 142          }
 143       }
 144    }
 145
 146    free( mfoliage );
 147    scene_upload( &world.foliage );
 148 }
 149
 150 #endif /* WORLD_H */