plish

[carveJwlIkooP6JGAAIwe30JlM.git] / world.h

diff --git a/world.h b/world.h
index ecbd6e0044503063c2ebfde108076db8b95f6dd2..5b27ef7951b7479ad9c715bef7abafb5f366e65c 100644 (file)
--- a/world.h
+++ b/world.h
@@ -21,7 +21,6 @@ VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
 
 #include "shaders/terrain.h"
 #include "shaders/sky.h"
-#include "shaders/planeinf.h"
 #include "shaders/standard.h"
 #include "shaders/vblend.h"
 #include "shaders/gpos.h"
@@ -327,7 +326,7 @@ VG_STATIC struct gworld
           mesh_water;
 
    mdl_submesh sm_foliage_main;
-   rigidbody rb_geo;
+   rigidbody rb_geo; /* todo.. ... */
 }
 world;
 
@@ -401,10 +400,10 @@ VG_STATIC int world_change_world( int argc, const char *argv[] )
 
 VG_STATIC void world_init(void)
 {
-   vg_convar_push( (struct vg_convar){
+   vg_var_push( (struct vg_var){
       .name = "water_enable",
       .data = &world.water.enabled,
-      .data_type = k_convar_dtype_i32,
+      .data_type = k_var_dtype_i32,
       .opt_i32 = { .min=0, .max=1, .clamp=1 },
       .persistent = 0
    });
@@ -426,7 +425,6 @@ VG_STATIC void world_init(void)
 
    shader_terrain_register();
    shader_sky_register();
-   shader_planeinf_register();
    shader_gpos_register();
    shader_blitcolour_register();
    shader_alphatest_register();
@@ -652,6 +650,71 @@ VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit )
    return scene_raycast( world.scene_geo, world.geo_bh, pos, dir, hit );
 }
 
+/*
+ * Cast a sphere from a to b and see what time it hits
+ */
+VG_STATIC int spherecast_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_material *world_tri_index_material( u32 index )
 {
    for( int i=1; i<world.material_count; i++ )