X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=world.h;h=b9814f89aff027da117e8e6503237c56f99ac86b;hb=72c40f1bc7a732f6a628dbf8a4135ac0bf3efa4e;hp=8b1b1dc079ff159e06e6197837f0637e4a6a1e46;hpb=47941822dae18a018c985847b052e70214a3ccc6;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/world.h b/world.h
index 8b1b1dc..b9814f8 100644
--- a/world.h
+++ b/world.h
@@ -4,11 +4,11 @@
 
 #include "common.h"
 
-VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
-
 #ifndef WORLD_H
 #define WORLD_H
 
+typedef struct world_instance world_instance;
+
 #include "vg/vg_loader.h"
 
 #include "network.h"
@@ -18,17 +18,16 @@ VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
 #include "rigidbody.h"
 #include "bvh.h"
 #include "model.h"
+#include "entity.h"
 
-#include "shaders/terrain.h"
-#include "shaders/sky.h"
-#include "shaders/planeinf.h"
-#include "shaders/standard.h"
-#include "shaders/vblend.h"
-#include "shaders/gpos.h"
-#include "shaders/fscolour.h"
-#include "shaders/alphatest.h"
+#include "shaders/scene_standard.h"
+#include "shaders/scene_standard_alphatest.h"
+#include "shaders/scene_vertex_blend.h"
+#include "shaders/scene_terrain.h"
+#include "shaders/scene_depth.h"
+#include "shaders/scene_position.h"
 
-typedef struct teleport_gate teleport_gate;
+#include "shaders/model_sky.h"
 
 enum { k_max_ui_segments = 8 };
 
@@ -46,26 +45,29 @@ enum logic_type
    k_logic_type_achievement   = 3
 };
 
-VG_STATIC struct gworld
+enum geo_type
 {
-   /*
-    * Allocated as system memory
-    * --------------------------------------------------------------------------
-    */
+   k_geo_type_solid = 0,
+   k_geo_type_nonsolid = 1,
+   k_geo_type_water = 2
+};
 
-   /* rendering */
-   glmesh skydome;
-   mdl_submesh dome_upper, dome_lower;
+static const float k_light_cube_size = 8.0f;
 
-   glmesh mesh_gate_surface;
+struct world_instance 
+{
+   /* This is a small flag we use to changelevel.
+    * It will not be cleared until all sounds stop playing 
+    */
 
-   double sky_time, sky_rate, sky_target_rate;
+   /* Fixed items
+    * -------------------------------------------------------
+    */
+
+   char  world_name[ 64 ];
 
-   /* water rendering */
    struct
    {
-      struct framebuffer fbreflect, fbdepth;
-
       boxf depthbounds;
       int depth_computed;
 
@@ -75,43 +77,52 @@ VG_STATIC struct gworld
    }
    water;
 
-   /* split flap display */
-   struct
+   /* STD140 */
+   struct ub_world_lighting
    {
-      mdl_submesh *sm_module, *sm_card;
-      glmesh mesh_base, mesh_display;
-
-      u32 w, h;
-      float *buffer;
+      v4f g_cube_min,
+          g_cube_inv_range;
+
+      v4f g_water_plane,
+          g_depth_bounds;
+
+      v4f g_daysky_colour;
+      v4f g_nightsky_colour;
+      v4f g_sunset_colour;
+      v4f g_ambient_colour;
+      v4f g_sunset_ambient;
+      v4f g_sun_colour;
+      v4f g_sun_dir;
+
+      float g_water_fog;
+      float g_time;
+      float g_realtime;
+      float g_shadow_length;
+      float g_shadow_spread;
+
+      float g_time_of_day;
+      float g_day_phase;
+      float g_sunset_phase;
+
+      int g_light_preview;
+      int g_shadow_samples;
+
+      int g_debug_indices;
+      int g_debug_complexity;
    }
-   sfd;
-
-   /* timing bars, fixed maximum amount */
-   struct route_ui_bar
-   {
-      GLuint vao, vbo, ebo;
-
-      u32  indices_head;
-      u32  vertex_head;
+   ub_lighting;
+   GLuint ubo_lighting;
+   int    ubo_bind_point;
 
-      float last_notch;
+   GLuint tbo_light_entities,
+          tex_light_entities,
+          tex_light_cubes;
 
-      struct route_ui_segment
-      {
-         float length;
-         u32 vertex_start, vertex_count,
-             index_start, index_count, notches;
-      }
-      segments[k_max_ui_segments];
+   float probabilities[3];
 
-      u32 segment_start, segment_count, fade_start, fade_count;
-      double fade_timer_start;
-      float xpos;
-   }
-   ui_bars[16];
+   v3i light_cubes;
 
-   v3f render_gate_pos;
-   int active_route_board;
+   struct framebuffer heightmap;
 
    /*
     * Dynamically allocated when world_load is called.
@@ -122,13 +133,39 @@ VG_STATIC struct gworld
     * (world_gen.h)
     * --------------------------------------------------------------------------
     */
-   void *dynamic_vgl;
-
    /*
     * Main world .mdl 
     */
-   mdl_context *meta;
+   mdl_context meta;
+
+   GLuint *textures;
+   u32 texture_count;
+
+   struct world_surface
+   {
+      mdl_material info;
+      mdl_submesh sm_geo,
+                  sm_no_collide;
+   }
+   * surfaces;
+   u32 surface_count;
+
+   mdl_array_ptr ent_spawn,
+                 ent_gate,
+                 ent_light,
+                 ent_route_node,
+                 ent_path_index,
+                 ent_checkpoint,
+                 ent_route,
+                 ent_water,
+
+                 ent_audio_clip,
+                 ent_audio,
+                 ent_volume;
 
+   ent_gate *rendering_gate;
+
+#if 0
    /*
     * Named safe places to respawn
     */
@@ -147,58 +184,59 @@ VG_STATIC struct gworld
    struct world_audio_thing
    {
       v3f pos;
-      float volume;
+      float volume, range;
       u32 flags;
-
-      audio_player player;
       audio_clip temp_embedded_clip;
    }
    * audio_things;
    u32 audio_things_count;
 
-   /*
-    * Relays, random, etc
-    */
-   struct logic_entity
+   struct soundscape
    {
-      v3f pos;
-      enum logic_type logic_type;
-      int enabled;
-
-      /* indexes the action array */
-      u32 action_start, action_count;
+      /* locking */
+      audio_channel *channels[4];
+      
+      /* accessable without locking */
+      v3f spawn_position;
+
+      u32 usage_count;
+      u32 max_instances;
+      u32 allow_transitions;
+      float transition_duration;
+      const char *label;
    }
-   * logic_entities;
-   u32 logic_entity_count;
+   * soundscapes;
+   u32 soundscape_count;
 
    /*
-    * Action array
+    * Box volume entities
     */
-   struct logic_action
+   struct world_volume
    {
-      u32 event,     /* on trigger, on enable, etc (TODO: Enum) */
-          target_id; /* thing to target, 0: self */
-
+      m4x3f transform, inv_transform;
+      mdl_node *node;
    }
-   * logic_actions;
-   u32 logic_action_count;
+   * volumes;
+   u32 volume_count;
 
-   /*
-    * Box trigger entities
+   /* 
+    * Lights
     */
-   struct trigger_zone
+   struct world_light
    {
-      m4x3f transform, inv_transform;
-      u32   trigger_entity;
+      mdl_node *node;
+      struct classtype_world_light *inf;
+      m4x3f inverse_world;
+      v2f angle_sin_cos;
    }
-   * triggers;
-   u32 trigger_count;
-
+   * lights;
+   u32 light_count;
 
    /*
     * Routes (world_routes.h)
     * --------------------------------------------------------------------------
     */
+
    struct route_node
    {
       v3f co, right, up, h;
@@ -236,7 +274,7 @@ VG_STATIC struct gworld
          v4f q[2];
          v2f dims;
 
-         m4x3f to_world, recv_to_world, transport;
+         m4x3f to_world, transport;
       }
       gate;
 
@@ -252,22 +290,29 @@ VG_STATIC struct gworld
    *gates;
    u32 gate_count;
 
+   struct nonlocal_gate
+   {
+      struct teleport_gate gate;
+      mdl_node *node;
+
+      u32 target_map_index, working;
+   }
+   *nonlocal_gates;
+   u32 nonlocalgate_count;
+
    struct route_collector
    {
       struct route_timing timing;
    }
    *collectors;
    u32 collector_count;
+#endif
 
 
    /* logic 
     * ----------------------------------------------------
     */
 
-   u32 active_gate,
-       current_run_version;
-   double time, rewind_from, rewind_to, last_use;
-
    /* world geometry */
    scene *scene_geo, 
          *scene_no_collide,
@@ -275,46 +320,87 @@ VG_STATIC struct gworld
 
    /* spacial mappings */
    bh_tree *audio_bh,
-           *trigger_bh,
+           *volume_bh,
            *geo_bh;
 
    /* graphics */
+   glmesh mesh_route_lines;
    glmesh mesh_geo, 
           mesh_no_collide,
-          mesh_route_lines,
           mesh_water;
 
-   rigidbody rb_geo;
-
-   /* TODO Maybe make this less hardcoded */
-   mdl_submesh sm_geo_std_oob,   sm_geo_std, sm_geo_vb,
-               sm_foliage_main,  sm_foliage_alphatest,
-               sm_graffiti, sm_subworld, sm_terrain;
+   rigidbody rb_geo; /* todo.. ... */
+};
 
+VG_STATIC struct world_global
+{
    /*
-    * Allocated AFTER all previous buffers are done
+    * Allocated as system memory
     * --------------------------------------------------------------------------
     */
+   void *generic_heap;
 
-   struct instance_cache
+   /* rendering */
+   glmesh skydome;
+   glmesh mesh_gate;
+   mdl_submesh sm_gate_surface,
+               sm_gate_marker[4];
+
+   double sky_time, sky_rate, sky_target_rate;
+
+   u32 current_run_version;
+   double time, rewind_from, rewind_to, last_use;
+
+   /* water rendering */
+   struct
    {
-      mdl_context *mdl;
-      u32 pstr_file;
+      struct framebuffer fbreflect, fbdepth;
    }
-   instance_cache[32];
-   u32 instance_cache_count;
+   water;
+
+   /* split flap display */
+   struct
+   {
+      glmesh mesh_base, mesh_display;
+      mdl_submesh sm_base;
+      u32 active_route_board;
+
+      u32 w, h;
+      float *buffer;
+   }
+   sfd;
+
+   v3f render_gate_pos;
+   int in_volume;
+
+   int switching_to_new_world;
+
+   world_instance worlds[4];
+   u32            world_count;
+   u32            active_world;
 }
-world;
+world_global;
 
+VG_STATIC world_instance *get_active_world( void )
+{
+   return &world_global.worlds[ world_global.active_world ];
+}
 
 /*
  * API
  */
 
-VG_STATIC int ray_hit_is_ramp( ray_hit *hit );
-VG_STATIC int ray_hit_is_terrain( ray_hit *hit );
-VG_STATIC void ray_world_get_tri( ray_hit *hit, v3f tri[3] );
-VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
+VG_STATIC 
+int ray_hit_is_ramp( world_instance *world, ray_hit *hit );
+
+VG_STATIC 
+struct world_surface *ray_hit_surface( world_instance *world, ray_hit *hit );
+
+VG_STATIC 
+void ray_world_get_tri( world_instance *world, ray_hit *hit, v3f tri[3] );
+
+VG_STATIC 
+int ray_world( world_instance *world, v3f pos, v3f dir, ray_hit *hit );
 
 /*
  * Submodules
@@ -324,6 +410,7 @@ VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
 #include "world_sfd.h"
 #include "world_render.h"
 #include "world_water.h"
+#include "world_volumes.h"
 #include "world_gen.h"
 #include "world_gate.h"
 
@@ -333,146 +420,390 @@ VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
  * -----------------------------------------------------------------------------
  */
 
+VG_STATIC int world_stop_sound( int argc, const char *argv[] )
+{
+   world_instance *world = get_active_world();
+   return 0;
+}
+
 VG_STATIC void world_init(void)
 {
-   vg_convar_push( (struct vg_convar){
-      .name = "water_enable",
-      .data = &world.water.enabled,
-      .data_type = k_convar_dtype_i32,
-      .opt_i32 = { .min=0, .max=1, .clamp=1 },
-      .persistent = 0
-   });
-
-   world.sky_rate = 1.0;
-   world.sky_target_rate = 1.0;
-
-   shader_terrain_register();
-   shader_sky_register();
-   shader_planeinf_register();
-   shader_gpos_register();
-   shader_fscolour_register();
-   shader_alphatest_register();
+   world_global.sky_rate = 1.0;
+   world_global.sky_target_rate = 1.0;
+
+   shader_scene_standard_register();
+   shader_scene_standard_alphatest_register();
+   shader_scene_vertex_blend_register();
+   shader_scene_terrain_register();
+   shader_scene_depth_register();
+   shader_scene_position_register();
+
+   shader_model_sky_register();
 
    vg_info( "Loading world resources\n" );
    
    vg_linear_clear( vg_mem.scratch );
-   mdl_context *msky = mdl_load_full( vg_mem.scratch, "models/rs_skydome.mdl" );
 
-   mdl_node *nlower = mdl_node_from_name( msky, "dome_lower" ),
-            *nupper = mdl_node_from_name( msky, "dome_upper" );
-   
-   world.dome_lower = *mdl_node_submesh( msky, nlower, 0 );
-   world.dome_upper = *mdl_node_submesh( msky, nupper, 0 );
+   mdl_context msky;
+   mdl_open( &msky, "models/rs_skydome.mdl", vg_mem.scratch );
+   mdl_load_metadata_block( &msky, vg_mem.scratch );
+   mdl_load_mesh_block( &msky, vg_mem.scratch );
+   mdl_close( &msky );
 
    vg_acquire_thread_sync();
    {
-      mdl_unpack_glmesh( msky, &world.skydome );
+      mdl_unpack_glmesh( &msky, &world_global.skydome );
    }
    vg_release_thread_sync();
 
    /* Other systems */
    vg_info( "Loading other world systems\n" );
 
-   vg_loader_highwater( world_render_init, NULL, NULL );
-   vg_loader_highwater( world_sfd_init, NULL, NULL );
-   vg_loader_highwater( world_water_init, NULL, NULL );
-   vg_loader_highwater( world_gates_init, NULL, NULL );
-   vg_loader_highwater( world_routes_init, NULL, NULL );
+   vg_loader_step( world_render_init, NULL );
+   vg_loader_step( world_sfd_init, NULL );
+   vg_loader_step( world_water_init, NULL );
+   vg_loader_step( world_gates_init, NULL );
+   vg_loader_step( world_routes_init, NULL );
 
    /* Allocate dynamic world memory arena */
-   u32 max_size = 72*1024*1024;
-   world.dynamic_vgl = vg_create_linear_allocator( vg_mem.rtmemory, max_size );
+   u32 max_size = 76*1024*1024;
+   world_global.generic_heap = vg_create_linear_allocator( vg_mem.rtmemory, 
+                                                           max_size,
+                                                           VG_MEMORY_SYSTEM );
 }
 
-VG_STATIC void world_update( v3f pos )
+typedef struct ent_call ent_call;
+struct ent_call{
+   ent_index ent;
+   u32 function;
+   void *data;
+};
+
+VG_STATIC void entity_call( world_instance *world, ent_call *call );
+
+VG_STATIC void ent_volume_call( world_instance *world, ent_call *call )
 {
-   world.sky_time += world.sky_rate * vg.time_delta;
-   world.sky_rate = vg_lerp( world.sky_rate, world.sky_target_rate, 
-                                 vg.time_delta * 5.0 );
+   ent_volume *volume = mdl_arritm( &world->ent_volume, call->ent.index );
+   if( !volume->target.type ) return;
+
+   if( call->function == k_ent_function_trigger ){
+      call->ent = volume->target;
+
+      if( volume->type == k_volume_subtype_particle ){
+         v3f co;
+         co[0] = vg_randf()*2.0f-1.0f;
+         co[1] = vg_randf()*2.0f-1.0f;
+         co[2] = vg_randf()*2.0f-1.0f;
+         m4x3_mulv( volume->to_world, co, co );
+
+         call->function = k_ent_function_particle_spawn;
+         call->data = co;
+         entity_call( world, call );
+      }
+      else
+         entity_call( world, call );
+   }
+}
 
-   world_routes_update();
-#if 0
-   world_routes_debug();
-#endif
-   
-   int closest = 0;
-   float min_dist = INFINITY;
+VG_STATIC void ent_audio_call( world_instance *world, ent_call *call )
+{
+   ent_audio *audio = mdl_arritm( &world->ent_audio, call->ent.index );
 
-   for( int i=0; i<world.route_count; i++ )
-   {
-      float d = v3_dist2( world.routes[i].scoreboard_transform[3], pos );
+   v3f sound_co;
 
-      if( d < min_dist )
-      {
-         min_dist = d;
-         closest = i;
-      }
+   if( call->function == k_ent_function_particle_spawn ){
+      v3_copy( call->data, sound_co );
+   }
+   else if( call->function == k_ent_function_trigger ){
+      v3_copy( audio->transform.co, sound_co );
    }
+   else
+      vg_fatal_exit_loop( "ent_audio_call (invalid function id)" );
 
-   if( (world.active_route_board != closest) || network_scores_updated )
-   {
-      network_scores_updated = 0;
-      world.active_route_board = closest;
+   float chance = vg_randf()*100.0f,
+         bar = 0.0f;
 
-      struct route *route = &world.routes[closest];
+   for( u32 i=0; i<audio->clip_count; i++ ){
+      ent_audio_clip *clip = mdl_arritm( &world->ent_audio_clip, 
+                                          audio->clip_start+i );
 
-      u32 id = route->track_id;
+      float mod = world->probabilities[ audio->probability_curve ],
+            p   = clip->probability * mod;
 
-      if( id != 0xffffffff )
-      {
-         struct netmsg_board *local_board = &scoreboard_client_data.boards[id];
+      bar += p;
 
-         for( int i=0; i<13; i++ )
-         {
-            sfd_encode( i, &local_board->data[27*i] );
+      if( chance < bar ){
+
+         audio_lock();
+
+         if( audio->behaviour == k_channel_behaviour_unlimited ){
+            audio_oneshot_3d( &clip->clip, sound_co,
+                              audio->transform.s[0],
+                              audio->volume );
+         }
+         else if( audio->behaviour == k_channel_behaviour_discard_if_full ){
+            audio_channel *ch = 
+               audio_get_group_idle_channel( audio->group, 
+                                             audio->max_channels );
+
+            if( ch ){
+               audio_channel_init( ch, &clip->clip, audio->flags );
+               audio_channel_group( ch, audio->group );
+               audio_channel_set_spacial( ch, sound_co, audio->transform.s[0] );
+               audio_channel_edit_volume( ch, audio->volume, 1 );
+               ch = audio_relinquish_channel( ch );
+            }
+         }
+         else if( audio->behaviour == k_channel_behaviour_crossfade_if_full){
+            audio_channel *ch =
+               audio_get_group_idle_channel( audio->group,
+                                             audio->max_channels );
+
+            /* group is full */
+            if( !ch ){
+               audio_channel *existing = 
+                  audio_get_group_first_active_channel( audio->group );
+
+               if( existing ){
+                  if( existing->source == &clip->clip ){
+                     audio_unlock();
+                     return;
+                  }
+                 
+                  existing->group = 0;
+                  existing = audio_channel_fadeout(existing, audio->crossfade);
+               }
+
+               ch = audio_get_first_idle_channel();
+            }
+
+            if( ch ){
+               audio_channel_init( ch, &clip->clip, audio->flags );
+               audio_channel_group( ch, audio->group );
+               audio_channel_fadein( ch, audio->crossfade );
+               ch = audio_relinquish_channel( ch );
+            }
          }
+
+         audio_unlock();
+         return;
       }
    }
+}
 
-#if 0
-   VG_STATIC int in_zone = 0;
+VG_STATIC void entity_call( world_instance *world, ent_call *call )
+{
+   if( call->ent.type == k_ent_volume ){
+      ent_volume_call( world, call );
+   } else if( call->ent.type == k_ent_audio ){
+      ent_audio_call( world, call );
+   }
+}
 
-   int in_zone_this_time = 0;
+VG_STATIC void world_update( world_instance *world, v3f pos )
+{
+   /* TEMP!!!!!! */
+   static double g_time = 0.0;
+   g_time += vg.time_delta * (1.0/(k_day_length*60.0));
 
-   for( int i=0; i<world.achievement_zones_count; i++ )
-   {
-      struct achievement_zone *zone = &world.achievement_zones[i];
 
-      v3f local;
-      m4x3_mulv( zone->inv_transform, pos, local );
+   struct ub_world_lighting *state = &world->ub_lighting;
+
+   state->g_time = g_time;
+   state->g_realtime = vg.time;
+   state->g_debug_indices = k_debug_light_indices;
+   state->g_light_preview = k_light_preview;
+   state->g_debug_complexity = k_debug_light_complexity;
+
+   state->g_time_of_day = vg_fractf( g_time );
+   state->g_day_phase   = cosf( state->g_time_of_day * VG_PIf * 2.0f );
+   state->g_sunset_phase= cosf( state->g_time_of_day * VG_PIf * 4.0f + VG_PIf );
+
+   state->g_day_phase    =       state->g_day_phase    * 0.5f + 0.5f;
+   state->g_sunset_phase = powf( state->g_sunset_phase * 0.5f + 0.5f, 6.0f );
+
+   float a = state->g_time_of_day * VG_PIf * 2.0f;
+   state->g_sun_dir[0] = sinf( a );
+   state->g_sun_dir[1] = cosf( a );
+   state->g_sun_dir[2] = 0.2f;
+   v3_normalize( state->g_sun_dir );
+
+
+   world->probabilities[ k_probability_curve_constant ] = 1.0f;
+
+   float dp = state->g_day_phase;
+
+   world->probabilities[ k_probability_curve_wildlife_day ] =
+      (dp*dp*0.8f+state->g_sunset_phase)*0.8f;
+   world->probabilities[ k_probability_curve_wildlife_night ] = 
+      1.0f-powf(fabsf((state->g_time_of_day-0.5f)*5.0f),5.0f);
       
-      if( (fabsf(local[0]) <= 1.0f) &&
-          (fabsf(local[1]) <= 1.0f) &&
-          (fabsf(local[2]) <= 1.0f) )
-      {
-         in_zone_this_time = 1;
 
-         if( !in_zone && zone->ptarget )
-         {
-            audio_lock();
-            audio_player_playclip( &zone->ptarget->player, 
-                                   &zone->ptarget->temp_embedded_clip );
-            audio_unlock();
+   glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
+   glBufferSubData( GL_UNIFORM_BUFFER, 0, 
+                    sizeof(struct ub_world_lighting), &world->ub_lighting );
+   /* TEMP!!!!!! */
+
+   world_global.sky_time += world_global.sky_rate * vg.time_delta;
+   world_global.sky_rate = vg_lerp( world_global.sky_rate, 
+                                    world_global.sky_target_rate, 
+                                    vg.time_delta * 5.0 );
+
+   world_routes_update( world );
+   world_routes_debug( world );
+
+   /* ---- SFD ------------ */
+   
+   if( mdl_arrcount( &world->ent_route ) ){
+      u32 closest = 0;
+      float min_dist = INFINITY;
+
+      for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i++ ){
+         ent_route *route = mdl_arritm( &world->ent_route, i );
+         float dist = v3_dist2( route->board_transform[3], pos );
+
+         if( dist < min_dist ){
+            min_dist = dist;
+            closest = i;
          }
+      }
+
+      if( (world_global.sfd.active_route_board != closest) 
+          || network_scores_updated )
+      {
+         network_scores_updated = 0;
+         world_global.sfd.active_route_board = closest;
+
+         ent_route *route = mdl_arritm( &world->ent_route, closest );
+         u32 id = route->official_track_id;
+
+         if( id != 0xffffffff ){
+            struct netmsg_board *local_board = 
+               &scoreboard_client_data.boards[id];
+
+            for( int i=0; i<13; i++ ){
+               sfd_encode( i, &local_board->data[27*i] );
+            }
+         }else{
+            sfd_encode( 0, mdl_pstr( &world->meta, route->pstr_name ) );
+            sfd_encode( 1, "No data" );
+         }
+      }
+   }
+   sfd_update();
+   
+
+
+   static float random_accum = 0.0f;
+   random_accum += vg.time_delta;
+
+   u32 random_ticks = 0;
+
+   while( random_accum > 0.1f ){
+      random_accum -= 0.1f;
+      random_ticks ++;
+   }
+
+   float radius = 25.0f;
+   boxf volume_proximity;
+   v3_add( pos, (v3f){ radius, radius, radius }, volume_proximity[1] );
+   v3_sub( pos, (v3f){ radius, radius, radius }, volume_proximity[0] );
+
+   bh_iter it;
+   bh_iter_init( 0, &it );
+   int idx;
+
+   int in_volume = 0;
 
-         if( !zone->triggered )
+   while( bh_next( world->volume_bh, &it, volume_proximity, &idx ) ){
+      ent_volume *volume = mdl_arritm( &world->ent_volume, idx );
+
+      boxf cube = {{-1.0f,-1.0f,-1.0f},{1.0f,1.0f,1.0f}};
+      
+      if( volume->type == k_volume_subtype_trigger ){
+         v3f local;
+         m4x3_mulv( volume->to_local, pos, local );
+
+         if( (fabsf(local[0]) <= 1.0f) &&
+             (fabsf(local[1]) <= 1.0f) &&
+             (fabsf(local[2]) <= 1.0f) )
          {
-            steam_set_achievement( zone->name );
-            steam_store_achievements();
+            in_volume = 1;
+            vg_line_boxf_transformed( volume->to_world, cube, 0xff00ff00 );
+
+            if( !world_global.in_volume ){
+               ent_call basecall;
+               basecall.ent.index = idx;
+               basecall.ent.type = k_ent_volume;
+               basecall.function = k_ent_function_trigger;
+               basecall.data = NULL;
+
+               entity_call( world, &basecall );
+            }
          }
+         else
+            vg_line_boxf_transformed( volume->to_world, cube, 0xff0000ff );
+      }
+      else if( volume->type == k_volume_subtype_particle ){
+         vg_line_boxf_transformed( volume->to_world, cube, 0xff00c0ff );
 
-         zone->triggered = 1;
+         for( int j=0; j<random_ticks; j++ ){
+            ent_call basecall;
+            basecall.ent.index = idx;
+            basecall.ent.type = k_ent_volume;
+            basecall.function = k_ent_function_trigger;
+            basecall.data = NULL;
+
+            entity_call( world, &basecall );
+         }
       }
+   }
+   world_global.in_volume = in_volume;
 
-      vg_line_boxf_transformed( zone->transform, (boxf){{-1.0f,-1.0f,-1.0f},
-                                                        { 1.0f, 1.0f, 1.0f}}, 
-                                                        0xff00ff00 );
+#if 0
+   if( k_debug_light_indices )
+   {
+      for( int i=0; i<world->light_count; i++ ){
+         struct world_light *light = &world->lights[i];
+         struct classtype_world_light *inf = light->inf;
+
+         u32 colour = 0xff000000;
+         u8 r = inf->colour[0] * 255.0f,
+            g = inf->colour[1] * 255.0f,
+            b = inf->colour[2] * 255.0f;
+
+         colour |= r;
+         colour |= g << 8;
+         colour |= b << 16;
+
+         vg_line_pt3( light->node->co, 0.25f, colour );
+      }
    }
 
-   in_zone = in_zone_this_time;
 #endif
-   
-   sfd_update();
+
+#if 0
+
+   /* process soundscape transactions */
+   audio_lock();
+   for( int i=0; i<world->soundscape_count; i++ )
+   {
+      struct soundscape *s = &world->soundscapes[i];
+      s->usage_count = 0;
+
+      for( int j=0; j<s->max_instances; j++ )
+      {
+         if( s->channels[j] )
+         {
+            if( audio_channel_finished(s->channels[j]) )
+               s->channels[j] = audio_relinquish_channel( s->channels[j] );
+            else
+               s->usage_count ++;
+         }
+      }
+   }
+   audio_unlock();
+#endif
 }
 
 /* 
@@ -481,33 +812,108 @@ VG_STATIC void world_update( v3f pos )
  * -----------------------------------------------------------------------------
  */
 
-VG_STATIC void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
+VG_STATIC void ray_world_get_tri( world_instance *world,
+                                  ray_hit *hit, v3f tri[3] )
 {
    for( int i=0; i<3; i++ )
-      v3_copy( world.scene_geo->arrvertices[ hit->tri[i] ].co, tri[i] );
+      v3_copy( world->scene_geo->arrvertices[ hit->tri[i] ].co, tri[i] );
 }
 
-VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit )
+VG_STATIC int ray_world( world_instance *world,
+                         v3f pos, v3f dir, ray_hit *hit )
 {
-   return scene_raycast( world.scene_geo, world.geo_bh, pos, dir, hit );
+   return scene_raycast( world->scene_geo, world->geo_bh, pos, dir, hit );
 }
 
-VG_STATIC int ray_hit_is_terrain( ray_hit *hit )
+/*
+ * Cast a sphere from a to b and see what time it hits
+ */
+VG_STATIC int spherecast_world( world_instance *world,
+                                v3f pa, v3f pb, float r, float *t, v3f n )
+{
+   bh_iter it;
+   bh_iter_init( 0, &it );
+
+   boxf region;
+   box_init_inf( region );
+   box_addpt( region, pa );
+   box_addpt( region, pb );
+   
+   v3_add( (v3f){ r, r, r}, region[1], region[1] );
+   v3_add( (v3f){-r,-r,-r}, region[0], region[0] );
+
+   v3f dir;
+   v3_sub( pb, pa, dir );
+
+   v3f dir_inv;
+   dir_inv[0] = 1.0f/dir[0];
+   dir_inv[1] = 1.0f/dir[1];
+   dir_inv[2] = 1.0f/dir[2];
+
+   int hit = -1;
+   float min_t = 1.0f;
+
+   int idx;
+   while( bh_next( world->geo_bh, &it, region, &idx ) ){
+      u32 *ptri = &world->scene_geo->arrindices[ idx*3 ];
+      v3f tri[3];
+
+      boxf box;
+      box_init_inf( box );
+
+      for( int j=0; j<3; j++ ){
+         v3_copy( world->scene_geo->arrvertices[ptri[j]].co, tri[j] );
+         box_addpt( box, tri[j] );
+      }
+
+      v3_add( (v3f){ r, r, r}, box[1], box[1] );
+      v3_add( (v3f){-r,-r,-r}, box[0], box[0] );
+
+      if( !ray_aabb1( box, pa, dir_inv, 1.0f ) )
+         continue;
+      
+      float t;
+      v3f n1;
+      if( spherecast_triangle( tri, pa, dir, r, &t, n1 ) ){
+         if( t < min_t ){
+            min_t = t;
+            hit = idx;
+            v3_copy( n1, n );
+         }
+      }
+   }
+
+   *t = min_t;
+   return hit;
+}
+
+VG_STATIC 
+struct world_surface *world_tri_index_surface( world_instance *world, 
+                                                 u32 index )
 {
-   u32 valid_start = 0,
-       valid_end   = world.sm_terrain.vertex_count;
+   for( int i=1; i<world->surface_count; i++ ){
+      struct world_surface *surf = &world->surfaces[i];
 
-   return (hit->tri[0] >= valid_start) &&
-          (hit->tri[0]  < valid_end);
+      if( (index >= surf->sm_geo.vertex_start) &&
+          (index  < surf->sm_geo.vertex_start+surf->sm_geo.vertex_count ) )
+      {
+         return surf;
+      }
+   }
+
+   return &world->surfaces[0];
 }
 
-VG_STATIC int ray_hit_is_ramp( ray_hit *hit )
+VG_STATIC struct world_surface *world_contact_surface( world_instance *world,
+                                                         rb_ct *ct )
 {
-   u32 valid_start = world.sm_geo_std.vertex_start,
-       valid_end   = world.sm_geo_vb.vertex_start;
+   return world_tri_index_surface( world, ct->element_id );
+}
 
-   return (hit->tri[0] >= valid_start) &&
-          (hit->tri[0]  < valid_end);
+VG_STATIC struct world_surface *ray_hit_surface( world_instance *world,
+                                                 ray_hit *hit )
+{
+   return world_tri_index_surface( world, hit->tri[0] );
 }
 
 #endif /* WORLD_H */