Add comments and TODOs

4 files changed, 7 insertions, 4 deletions

diff --git a/include/gfx/sizes.h b/include/gfx/sizes.h
index 05eefc7..14f72bc 100644
--- a/include/gfx/sizes.h
+++ b/include/gfx/sizes.h
@@ -86,7 +86,7 @@
 /// Maximum number of matrices in the immediate-mode renderer's matrix stack.
 #define IMM_MAX_NUM_MATRICES 32
 
-// Asset Manager.
+// Asset Cache.
 
 #define GFX_MAX_NUM_ASSETS 1024
 
diff --git a/src/asset/asset_cache.c b/src/asset/asset_cache.c
index 16c4d5c..727b63f 100644
--- a/src/asset/asset_cache.c
+++ b/src/asset/asset_cache.c
@@ -179,6 +179,7 @@ static Model* clone_model(const Model* model) {
 
 void gfx_init_asset_cache(AssetCache* cache) {
   assert(cache);
+
   mempool_make(&cache->assets);
 
   // Allocate a dummy asset at index 0 to guarantee that no assets allocated by
@@ -189,6 +190,7 @@ void gfx_init_asset_cache(AssetCache* cache) {
 
 void gfx_destroy_asset_cache(AssetCache* cache) {
   assert(cache);
+  // TODO: Destroy assets here.
   mempool_del(&cache->assets);
 }
 
diff --git a/src/scene/object_impl.h b/src/scene/object_impl.h
index 88f8e31..ead93f1 100644
--- a/src/scene/object_impl.h
+++ b/src/scene/object_impl.h
@@ -21,6 +21,7 @@ typedef struct MeshLink {
 typedef struct SceneObject {
   mesh_link_idx mesh_link; /// First MeshLink in the list.
   skeleton_idx  skeleton;  /// 0 for static objects.
-  node_idx      parent;    /// Parent SceneNode.
-  aabb3         box;
+  // TODO: Can we just store node indices in nodes, not the contained object?
+  node_idx parent; /// Parent SceneNode.
+  aabb3    box;
 } SceneObject;
diff --git a/src/scene/scene_memory.c b/src/scene/scene_memory.c
index d1d81a9..91880bb 100644
--- a/src/scene/scene_memory.c
+++ b/src/scene/scene_memory.c
@@ -73,7 +73,7 @@ void scene_mem_init() {
   mempool_make(&mem.skeletons);
 
   // Allocate dummy objects at index 0 to guarantee that no objects allocated by
-  // the caller map to index 0.
+  // the caller map to index 0. This allows 0 to be used as a sentinel.
   ALLOC_DUMMY(&mem.animas);
   ALLOC_DUMMY(&mem.animations);
   ALLOC_DUMMY(&mem.cameras);