world_volumes.c

   1 #include "world_volumes.h"
   2
   3 void world_volumes_update( world_instance *world, v3f pos )
   4 {
   5    /* filter and check the existing ones */
   6    u32 j=0;
   7    for( u32 i=0; i<world_static.active_trigger_volume_count; i++ ){
   8       i32 idx = world_static.active_trigger_volumes[i];
   9       ent_volume *volume = mdl_arritm( &world->ent_volume, idx );
  10
  11       v3f local;
  12       m4x3_mulv( volume->to_local, pos, local );
  13       if( (fabsf(local[0]) <= 1.0f) &&
  14           (fabsf(local[1]) <= 1.0f) &&
  15           (fabsf(local[2]) <= 1.0f) )
  16       {
  17          world_static.active_trigger_volumes[ j ++ ] = idx;
  18          boxf cube = {{-1.0f,-1.0f,-1.0f},{1.0f,1.0f,1.0f}};
  19          vg_line_boxf_transformed( volume->to_world, cube, 0xff00ccff );
  20       }
  21       else{
  22          /*
  23           * LEGACY BEHAVIOUR: < v104 does not have leave events
  24           */
  25          if( world->meta.info.version >= 104 ){
  26             ent_call basecall;
  27             basecall.function = k_ent_function_trigger_leave;
  28             basecall.id = mdl_entity_id( k_ent_volume, idx );
  29             basecall.data = NULL;
  30
  31             entity_call( world, &basecall );
  32          }
  33       }
  34    }
  35    world_static.active_trigger_volume_count = j;
  36
  37    static float random_accum = 0.0f;
  38    random_accum += vg.time_delta;
  39
  40    u32 random_ticks = 0;
  41
  42    while( random_accum > 0.1f ){
  43       random_accum -= 0.1f;
  44       random_ticks ++;
  45    }
  46
  47    float radius = 32.0f;
  48
  49    bh_iter it;
  50    bh_iter_init_range( 0, &it, pos, radius );
  51    i32 idx;
  52
  53    while( bh_next( world->entity_bh, &it, &idx ) ){
  54       u32 id    = world->entity_list[ idx ],
  55           type  = mdl_entity_id_type( id ),
  56           index = mdl_entity_id_id( id );
  57
  58       if( type != k_ent_volume ) continue;
  59
  60       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
  61       boxf cube = {{-1.0f,-1.0f,-1.0f},{1.0f,1.0f,1.0f}};
  62
  63       if( volume->flags & k_ent_volume_flag_particles ){
  64          vg_line_boxf_transformed( volume->to_world, cube, 0xff00c0ff );
  65
  66          for( int j=0; j<random_ticks; j++ ){
  67             ent_call basecall;
  68             basecall.id = id;
  69             basecall.data = NULL;
  70             basecall.function = 0;
  71
  72             entity_call( world, &basecall );
  73          }
  74       }
  75       else{
  76          for( u32 i=0; i<world_static.active_trigger_volume_count; i++ )
  77             if( world_static.active_trigger_volumes[i] == index )
  78                goto next_volume;
  79
  80          if( world_static.active_trigger_volume_count >
  81                vg_list_size(world_static.active_trigger_volumes) ) continue;
  82
  83          v3f local;
  84          m4x3_mulv( volume->to_local, pos, local );
  85
  86          if( (fabsf(local[0]) <= 1.0f) &&
  87              (fabsf(local[1]) <= 1.0f) &&
  88              (fabsf(local[2]) <= 1.0f) ){
  89             ent_call basecall;
  90             basecall.function = 0;
  91             basecall.id = id;
  92             basecall.data = NULL;
  93
  94             entity_call( world, &basecall );
  95             world_static.active_trigger_volumes[
  96                world_static.active_trigger_volume_count ++ ] = index;
  97          }
  98          else
  99             vg_line_boxf_transformed( volume->to_world, cube, 0xffcccccc );
 100       }
 101 next_volume:;
 102    }
 103 }