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#include "object_impl.h"
#include <gfx/render_backend.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;
}
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