world_volumes.c

   1 #ifndef WORLD_VOLUMES_C
   2 #define WORLD_VOLUMES_C
   3
   4 #include "world_volumes.h"
   5
   6 static void world_volumes_update( world_instance *world, v3f pos ){
   7    /* filter and check the existing ones */
   8    u32 j=0;
   9    for( u32 i=0; i<world_static.active_trigger_volume_count; i++ ){
  10       i32 idx = world_static.active_trigger_volumes[i];
  11       ent_volume *volume = mdl_arritm( &world->ent_volume, idx );
  12
  13       v3f local;
  14       m4x3_mulv( volume->to_local, pos, local );
  15       if( (fabsf(local[0]) <= 1.0f) &&
  16           (fabsf(local[1]) <= 1.0f) &&
  17           (fabsf(local[2]) <= 1.0f) )
  18       {
  19          world_static.active_trigger_volumes[ j ++ ] = idx;
  20          boxf cube = {{-1.0f,-1.0f,-1.0f},{1.0f,1.0f,1.0f}};
  21          vg_line_boxf_transformed( volume->to_world, cube, 0xff00ccff );
  22       }
  23       else{
  24          /*
  25           * LEGACY BEHAVIOUR: < v104 does not have leave events
  26           */
  27          if( world->meta.info.version >= 104 ){
  28             ent_call basecall;
  29             basecall.function = k_ent_function_trigger_leave;
  30             basecall.id = mdl_entity_id( k_ent_volume, idx );
  31             basecall.data = NULL;
  32
  33             entity_call( world, &basecall );
  34          }
  35       }
  36    }
  37    world_static.active_trigger_volume_count = j;
  38
  39    static float random_accum = 0.0f;
  40    random_accum += vg.time_delta;
  41
  42    u32 random_ticks = 0;
  43
  44    while( random_accum > 0.1f ){
  45       random_accum -= 0.1f;
  46       random_ticks ++;
  47    }
  48
  49    float radius = 32.0f;
  50
  51    bh_iter it;
  52    bh_iter_init_range( 0, &it, pos, radius );
  53    i32 idx;
  54
  55    while( bh_next( world->entity_bh, &it, &idx ) ){
  56       u32 id    = world->entity_list[ idx ],
  57           type  = mdl_entity_id_type( id ),
  58           index = mdl_entity_id_id( id );
  59
  60       if( type != k_ent_volume ) continue;
  61
  62       ent_volume *volume = mdl_arritm( &world->ent_volume, index );
  63       boxf cube = {{-1.0f,-1.0f,-1.0f},{1.0f,1.0f,1.0f}};
  64
  65       if( volume->flags & k_ent_volume_flag_particles ){
  66          vg_line_boxf_transformed( volume->to_world, cube, 0xff00c0ff );
  67
  68          for( int j=0; j<random_ticks; j++ ){
  69             ent_call basecall;
  70             basecall.id = id;
  71             basecall.data = NULL;
  72             basecall.function = 0;
  73
  74             entity_call( world, &basecall );
  75          }
  76       }
  77       else{
  78          for( u32 i=0; i<world_static.active_trigger_volume_count; i++ )
  79             if( world_static.active_trigger_volumes[i] == index )
  80                goto next_volume;
  81
  82          if( world_static.active_trigger_volume_count >
  83                vg_list_size(world_static.active_trigger_volumes) ) continue;
  84
  85          v3f local;
  86          m4x3_mulv( volume->to_local, pos, local );
  87
  88          if( (fabsf(local[0]) <= 1.0f) &&
  89              (fabsf(local[1]) <= 1.0f) &&
  90              (fabsf(local[2]) <= 1.0f) ){
  91             ent_call basecall;
  92             basecall.function = 0;
  93             basecall.id = id;
  94             basecall.data = NULL;
  95
  96             entity_call( world, &basecall );
  97             world_static.active_trigger_volumes[
  98                world_static.active_trigger_volume_count ++ ] = index;
  99          }
 100          else
 101             vg_line_boxf_transformed( volume->to_world, cube, 0xffcccccc );
 102       }
 103 next_volume:;
 104    }
 105 }
 106
 107 #endif /* WORLD_VOLUMES_H */