X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=world.h;h=622837d778728f42a6c1eb95a6aa2b59ecd9336d;hb=be8ea6efdbfd9c0fdad97401ed7d92041d8c8778;hp=c782ae09d7369cd90ddb51c3b25ef774166feced;hpb=f99902f513b0ad606437bf32de47405dd4ea5f98;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/world.h b/world.h
index c782ae0..622837d 100644
--- a/world.h
+++ b/world.h
@@ -275,6 +275,53 @@ 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 );
 
+VG_STATIC
+ent_spawn *world_find_closest_spawn( world_instance *world, v3f position )
+{
+   ent_spawn *rp = NULL, *r;
+   float min_dist = INFINITY;
+
+   for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
+      r = mdl_arritm( &world->ent_spawn, i );
+      float d = v3_dist2( r->transform.co, position );
+      
+      if( d < min_dist ){
+         min_dist = d;
+         rp = r;
+      }
+   }
+
+   if( !rp ){
+      if( mdl_arrcount(&world->ent_spawn) ){
+         vg_warn( "Invalid distances to spawns.. defaulting to first one.\n" );
+         return mdl_arritm( &world->ent_spawn, 0 );
+      }
+      else{
+         vg_error( "There are no spawns in the level!\n" );
+      }
+   }
+
+   return rp;
+}
+
+VG_STATIC
+ent_spawn *world_find_spawn_by_name( world_instance *world, const char *name )
+{
+   ent_spawn *rp = NULL, *r;
+   for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
+      r = mdl_arritm( &world->ent_spawn, i );
+      if( !strcmp( mdl_pstr(&world->meta, r->pstr_name), name ) ){
+         rp = r;
+         break;
+      }
+   }
+
+   if( !rp )
+      vg_warn( "No spawn named '%s'\n", name );
+
+   return rp;
+}
+
 /*
  * Submodules
  */
@@ -623,29 +670,6 @@ VG_STATIC void world_update( world_instance *world, v3f pos )
    }
 
 #endif
-
-#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
 }
 
 /* 
@@ -758,4 +782,130 @@ VG_STATIC struct world_surface *ray_hit_surface( world_instance *world,
    return world_tri_index_surface( world, hit->tri[0] );
 }
 
+/* 
+ * -----------------------------------------------------------------------------
+ *                              Audio sampling
+ * -----------------------------------------------------------------------------
+ */
+
+VG_STATIC 
+enum audio_sprite_type world_audio_sample_sprite_random(v3f origin, v3f output);
+VG_STATIC void world_audio_sample_distances( v3f co, int *index, float *value );
+
+#include "audio.h"
+
+/*
+ * Trace out a random point, near the player to try and determine water areas
+ */
+VG_STATIC 
+enum audio_sprite_type world_audio_sample_sprite_random(v3f origin, v3f output)
+{
+   v3f chance = { (vg_randf()-0.5f) * 30.0f, 
+                  8.0f,
+                  (vg_randf()-0.5f) * 30.0f };
+   
+   v3f pos;
+   v3_add( chance, origin, pos );
+
+   ray_hit contact;
+   contact.dist = vg_minf( 16.0f, pos[1] );
+
+   world_instance *world = get_active_world();
+   
+   if( ray_world( world, pos, (v3f){0.0f,-1.0f,0.0f}, &contact ) ){
+      struct world_surface *mat = ray_hit_surface( world, &contact );
+
+      if( mat->info.surface_prop == k_surface_prop_grass){
+         v3_copy( contact.pos, output );
+         return k_audio_sprite_type_grass;
+      }
+      else{
+         return k_audio_sprite_type_none;
+      }
+   }
+
+   output[0] = pos[0];
+   output[1] = 0.0f;
+   output[2] = pos[2];
+
+   float dist = fabsf(output[1] - origin[1]);
+   
+   if( world->water.enabled && dist<=40.0f )
+      return k_audio_sprite_type_water;
+   else
+      return k_audio_sprite_type_none;
+}
+
+VG_STATIC void world_audio_sample_distances( v3f co, int *index, float *value )
+{
+   float inr3 = 0.57735027,
+         inr2 = 0.70710678118;
+
+   v3f sample_directions[] = {
+      { -1.0f,  0.0f,  0.0f },
+      {  1.0f,  0.0f,  0.0f },
+      {  0.0f,  0.0f,  1.0f },
+      {  0.0f,  0.0f, -1.0f },
+      {  0.0f,  1.0f,  0.0f },
+      {  0.0f, -1.0f,  0.0f },
+      { -inr3,  inr3,  inr3 },
+      {  inr3,  inr3,  inr3 },
+      { -inr3,  inr3, -inr3 },
+      {  inr3,  inr3, -inr3 },
+      { -inr2,  0.0f,  inr2 },
+      {  inr2,  0.0f,  inr2 },
+      { -inr2,  0.0f, -inr2 },
+      {  inr2,  0.0f, -inr2 },
+   };
+
+   static int si = 0;
+   static float distances[16];
+
+   ray_hit ray;
+   ray.dist = 5.0f;
+
+   v3f rc, rd, ro;
+   v3_copy( sample_directions[ si ], rd );
+   v3_add( co, (v3f){0.0f,1.5f,0.0f}, ro );
+   v3_copy( ro, rc );
+
+   float dist = 200.0f;
+
+   for( int i=0; i<10; i++ ){
+      if( ray_world( get_active_world(), rc, rd, &ray ) ){
+         dist = (float)i*5.0f + ray.dist;
+         break;
+      }
+      else{
+         v3_muladds( rc, rd, ray.dist, rc );
+      }
+   }
+
+   distances[si] = dist;
+
+   if( vg_lines.draw ){
+      for( int i=0; i<14; i++ ){
+         if( distances[i] != 200.0f ){
+            u32 colours[] = { VG__RED, VG__BLUE, VG__GREEN,
+                              VG__CYAN, VG__YELOW, VG__PINK,
+                              VG__WHITE };
+
+            u32 colour = colours[i%7];
+
+            v3f p1;
+            v3_muladds( ro, sample_directions[i], distances[i], p1 );
+            vg_line( ro, p1, colour );
+            vg_line_pt3( p1, 0.1f, colour );
+         }
+      }
+   }
+
+   *index = si;
+   *value = dist;
+
+   si ++;
+   if( si >= 14 )
+      si = 0;
+}
+
 #endif /* WORLD_H */