world.h

   1 #include "common.h"
   2
   3 static int ray_world( v3f pos, v3f dir, ray_hit *hit );
   4
   5 #ifndef WORLD_H
   6 #define WORLD_H
   7
   8 #include "scene.h"
   9 #include "terrain.h"
  10 #include "render.h"
  11 #include "water.h"
  12 #include "rigidbody.h"
  13 #include "gate.h"
  14 #include "bvh.h"
  15
  16 #include "shaders/standard.h"
  17
  18 static struct gworld
  19 {
  20    scene geo, foliage;
  21    submodel sm_road, sm_terrain;
  22    glmesh skybox;
  23
  24    v3f tutorial;
  25
  26    teleport_gate gates[64];
  27    u32 gate_count;
  28
  29    rigidbody temp_rbs[128];
  30    u32 rb_count;
  31
  32    bh_tree bhcubes;
  33 }
  34 world;
  35
  36 static void render_world( m4x4f projection, m4x3f camera )
  37 {
  38    render_sky( camera );
  39
  40    m4x3f identity_matrix;
  41    m4x3_identity( identity_matrix );
  42
  43    render_terrain( projection, camera[3] );
  44    scene_bind( &world.geo );
  45    scene_draw( &world.geo );
  46
  47    glDisable(GL_CULL_FACE);
  48    scene_bind( &world.foliage );
  49    scene_draw( &world.foliage );
  50    glEnable(GL_CULL_FACE);
  51
  52    vg_line_boxf( world.geo.bbx, 0xff00ff00 );
  53 }
  54
  55 static void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
  56 {
  57    for( int i=0; i<3; i++ )
  58       v3_copy( world.geo.verts[ hit->tri[i] ].co, tri[i] );
  59 }
  60
  61 static int ray_world( v3f pos, v3f dir, ray_hit *hit )
  62 {
  63    return scene_raycast( &world.geo, pos, dir, hit );
  64 }
  65
  66 static int ray_hit_is_ramp( ray_hit *hit )
  67 {
  68    return hit->tri[0] < world.sm_road.vertex_count;
  69 }
  70
  71 static void world_load(void)
  72 {
  73    /* Setup scene */
  74    scene_init( &world.geo );
  75    model *mworld = vg_asset_read( "models/mp_dev.mdl" );
  76
  77    for( int i=0; i<mworld->layer_count; i++ )
  78    {
  79       submodel *sm = model_get_submodel( mworld, i );
  80       if( !strcmp( sm->material, "surf" ) )
  81          scene_add_model( &world.geo, mworld, sm, sm->pivot, 0.0f, 1.0f );
  82
  83    }
  84    scene_copy_slice( &world.geo, &world.sm_road );
  85
  86    for( int i=0; i<mworld->layer_count; i++ )
  87    {
  88       submodel *sm = model_get_submodel( mworld, i );
  89       if( !strcmp( sm->material, "terrain" ) )
  90          scene_add_model( &world.geo, mworld, sm, sm->pivot, 0.0f, 1.0f );
  91    }
  92
  93    scene_copy_slice( &world.geo, &world.sm_terrain );
  94
  95    vg_info( "BBX: %.3f %.3f %.3f -> %.3f %.3f %.3f\n",
  96          world.geo.bbx[0][0], world.geo.bbx[0][1], world.geo.bbx[0][2],
  97          world.geo.bbx[1][0], world.geo.bbx[1][1], world.geo.bbx[1][2] );
  98
  99    /*
 100     * TODO: Parametric marker import
 101     */
 102    v3_copy( model_marker_get( mworld, "start" )->co, world.tutorial );
 103
 104    /*
 105     * Initialize gates
 106     */
 107
 108    world.gate_count = 0;
 109    for( int i=0; i<mworld->marker_count; i++ )
 110    {
 111       model_marker *ga = model_get_marker( mworld, i );
 112
 113       if( ga->classtype == k_classtype_gate )
 114       {
 115          struct classtype_gate *data = get_entdata_raw( mworld, ga );
 116
 117          if( data->target )
 118          {
 119             model_marker *gb = model_get_marker( mworld, data->target );
 120
 121             teleport_gate *gate = &world.gates[ world.gate_count ++ ];
 122
 123             v3_copy( ga->co, gate->co[0] );
 124             v3_copy( gb->co, gate->co[1] );
 125             v4_copy( ga->q, gate->q[0] );
 126             v4_copy( gb->q, gate->q[1] );
 127             v2_copy( ga->s, gate->dims );
 128
 129             gate_transform_update( gate );
 130          }
 131       }
 132    }
 133
 134    /*
 135     * Load water mesh (1 per world)
 136     */
 137    for( int i=0; i<mworld->layer_count; i++ )
 138    {
 139       submodel *sm = model_get_submodel( mworld, i );
 140       if( !strcmp( sm->material, "water" ) )
 141       {
 142          glmesh surf;
 143          model_unpack_submodel( mworld, &surf, sm );
 144
 145          water_init();
 146          water_set_surface( &surf, sm->pivot[1] );
 147
 148          vg_info( "%.3f\n", sm->pivot[1] );
 149
 150          break;
 151       }
 152    }
 153
 154    scene_upload( &world.geo );
 155    scene_bh_create( &world.geo );
 156
 157    water_compute_depth( world.geo.bbx );
 158
 159    scene_init( &world.foliage );
 160    model *mfoliage = vg_asset_read("models/rs_foliage.mdl");
 161
 162    /*
 163     * TODO: Load any other meshes into the foliage scene, and create rbs for
 164     *       them.
 165     *
 166     *       then compute bvh
 167     */
 168
 169    for( int i=0; i<mworld->layer_count; i++ )
 170    {
 171       submodel *sm = model_get_submodel( mworld, i );
 172       if( !strcmp( sm->material, "surf" ) ||
 173           !strcmp( sm->material, "terrain" ) ||
 174           !strcmp( sm->material, "water" ) )
 175          continue;
 176
 177       m4x3f transform;
 178       q_m3x3( sm->q, transform );
 179       v3_copy( sm->pivot, transform[3] );
 180       scene_add_foliage( &world.foliage, mworld, sm, transform );
 181
 182       rigidbody *rb = &world.temp_rbs[ world.rb_count ++ ];
 183
 184       box_copy( sm->bbx, rb->bbx );
 185       v3_copy( sm->pivot, rb->co );
 186       rb_init( rb );
 187       v4_copy( sm->q, rb->q );
 188       rb_update_transform( rb );
 189    }
 190
 191    free( mworld );
 192
 193    v3f volume;
 194    v3_sub( world.geo.bbx[1], world.geo.bbx[0], volume );
 195    volume[1] = 1.0f;
 196
 197    m4x3f transform;
 198
 199    submodel *sm_blob = submodel_get( mfoliage, "blob" ),
 200             *sm_tree = submodel_get( mfoliage, "tree" );
 201
 202    for( int i=0;i<100000;i++ )
 203    {
 204       v3f pos;
 205       v3_mul( volume, (v3f){ vg_randf(), 1000.0f, vg_randf() }, pos );
 206       pos[1] = 1000.0f;
 207       v3_add( pos, world.geo.bbx[0], pos );
 208
 209       ray_hit hit;
 210       hit.dist = INFINITY;
 211
 212       if( ray_world( pos, (v3f){0.0f,-1.0f,0.0f}, &hit ))
 213       {
 214          if( hit.normal[1] > 0.8f && !ray_hit_is_ramp(&hit) &&
 215              hit.pos[1] > water_height()+10.0f )
 216          {
 217             v4f qsurface, qrandom;
 218             v3f axis;
 219
 220             v3_cross( (v3f){0.0f,1.0f,0.0f}, hit.normal, axis );
 221
 222             float angle = v3_dot(hit.normal,(v3f){0.0f,1.0f,0.0f});
 223             q_axis_angle( qsurface, axis, angle );
 224             q_axis_angle( qrandom, (v3f){0.0f,1.0f,0.0f}, vg_randf()*VG_TAUf );
 225             q_mul( qsurface, qrandom, qsurface );
 226             q_m3x3( qsurface, transform );
 227
 228             v3_copy( hit.pos, transform[3] );
 229
 230             if( vg_randf() < 0.0006f )
 231             {
 232                m3x3_identity( transform );
 233                scene_add_foliage( &world.foliage, mfoliage, sm_tree, transform);
 234             }
 235             else
 236                scene_add_foliage( &world.foliage, mfoliage, sm_blob, transform);
 237          }
 238       }
 239    }
 240
 241    free( mfoliage );
 242    scene_upload( &world.foliage );
 243
 244    bh_create( &world.bhcubes,
 245          &bh_system_rigidbodies, world.temp_rbs, world.rb_count );
 246 }
 247
 248 #endif /* WORLD_H */