1 files changed, 19 insertions, 2 deletions
diff --git a/src/world.h b/src/world.h
index 6a214b6..81512d0 100644
--- a/src/world.h
+++ b/src/world.h
@@ -1,16 +1,33 @@
 #include "utils.h"
 #include "assets.h"
+#include "entity.h"
 
 // This file is likely completely change.
 
 #ifndef WORLD_H
 #define WORLD_H
 
+// Max entities per node.
+#define BVH_MAX 4
+
+#define WORLD_ENTITY_MAX 1000
+
+// UID for anything in the world.x
+typedef int16_t WorldUID;
+
+typedef struct BVHNode {
+  BoundingBox box;
+  WorldUID entities[BVH_MAX];
+  struct BVHNode* branch1;
+  struct BVHNode* branch2;
+} BVHNode;
+
 typedef struct {
   Vector3 size;
-  Model heightmap;
   const Image* image;
-  Color* heightmapColors;
+  Model heightmap;
+  Entity entities[WORLD_ENTITY_MAX];
+  BVHNode bvh;
 } World;
 
 World createWorld(const Assets* assets);