1 files changed, 83 insertions, 0 deletions

diff --git a/src/scene/object.c b/src/scene/object.c
new file mode 100644
index 0000000..e8e3ee6
--- /dev/null
+++ b/src/scene/object.c
@@ -0,0 +1,83 @@
+#include "object_impl.h"
+
+#include <gfx/core.h>
+
+#include "mesh_impl.h"
+#include "node_impl.h"
+#include "scene_memory.h"
+
+#include <assert.h>
+
+static aabb3 calc_object_aabb(const SceneObject* object) {
+  assert(object);
+
+  bool  first = true;
+  aabb3 box;
+
+  mesh_link_idx ml = object->mesh_link;
+  while (ml.val) {
+    const MeshLink* mesh_link = mem_get_mesh_link(ml);
+    const mesh_idx  mi        = mesh_link->mesh;
+    if (mi.val) {
+      const Mesh* mesh     = mem_get_mesh(mi);
+      const aabb3 mesh_box = gfx_get_geometry_aabb(mesh->geometry);
+      if (first) {
+        box   = mesh_box;
+        first = false;
+      } else {
+        box = aabb3_sum(box, mesh_box);
+      }
+    }
+    ml = mesh_link->next;
+  }
+
+  return box;
+}
+
+static void add_object_mesh(SceneObject* object, Mesh* mesh) {
+  assert(object);
+  assert(mesh);
+
+  MeshLink* link    = mem_alloc_mesh_link();
+  link->mesh        = mem_get_mesh_index(mesh);
+  link->next        = object->mesh_link;
+  object->mesh_link = mem_get_mesh_link_index(link);
+}
+
+SceneObject* gfx_make_object(const ObjectDesc* desc) {
+  assert(desc);
+
+  SceneObject* object = mem_alloc_object();
+  for (size_t i = 0; i < desc->num_meshes; ++i) {
+    add_object_mesh(object, desc->meshes[i]);
+  }
+  object->box = calc_object_aabb(object);
+  return object;
+}
+
+void gfx_destroy_object(SceneObject** object) {
+  assert(object);
+
+  if (*object) {
+    if ((*object)->parent.val) {
+      gfx_del_node((*object)->parent);
+    }
+    mem_free_object(object);
+  }
+}
+
+void gfx_set_object_skeleton(SceneObject* object, const Skeleton* skeleton) {
+  assert(object);
+  assert(skeleton);
+  object->skeleton = mem_get_skeleton_index(skeleton);
+}
+
+const Skeleton* gfx_get_object_skeleton(const SceneObject* object) {
+  assert(object);
+  return (object->skeleton.val == 0) ? 0 : mem_get_skeleton(object->skeleton);
+}
+
+aabb3 gfx_get_object_aabb(const SceneObject* object) {
+  assert(object);
+  return object->box;
+}