1 files changed, 132 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/simulation.cc b/source/blender/blenkernel/intern/simulation.cc
new file mode 100644
index 00000000000..d5ba345928b
--- /dev/null
+++ b/source/blender/blenkernel/intern/simulation.cc
@@ -0,0 +1,132 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup bke
+ */
+
+#include <iostream>
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_ID.h"
+#include "DNA_defaults.h"
+#include "DNA_scene_types.h"
+#include "DNA_simulation_types.h"
+
+#include "BLI_compiler_compat.h"
+#include "BLI_listbase.h"
+#include "BLI_math.h"
+#include "BLI_string.h"
+#include "BLI_utildefines.h"
+
+#include "BKE_anim_data.h"
+#include "BKE_animsys.h"
+#include "BKE_idtype.h"
+#include "BKE_lib_id.h"
+#include "BKE_lib_query.h"
+#include "BKE_lib_remap.h"
+#include "BKE_main.h"
+#include "BKE_node.h"
+#include "BKE_simulation.h"
+
+#include "NOD_simulation.h"
+
+#include "BLT_translation.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
+static void simulation_init_data(ID *id)
+{
+  Simulation *simulation = (Simulation *)id;
+  BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(simulation, id));
+
+  MEMCPY_STRUCT_AFTER(simulation, DNA_struct_default_get(Simulation), id);
+
+  bNodeTree *ntree = ntreeAddTree(nullptr, "Simulation Nodetree", ntreeType_Simulation->idname);
+  simulation->nodetree = ntree;
+}
+
+static void simulation_copy_data(Main *bmain, ID *id_dst, const ID *id_src, const int flag)
+{
+  Simulation *simulation_dst = (Simulation *)id_dst;
+  Simulation *simulation_src = (Simulation *)id_src;
+
+  /* We always need allocation of our private ID data. */
+  const int flag_private_id_data = flag & ~LIB_ID_CREATE_NO_ALLOCATE;
+
+  if (simulation_src->nodetree) {
+    BKE_id_copy_ex(bmain,
+                   (ID *)simulation_src->nodetree,
+                   (ID **)&simulation_dst->nodetree,
+                   flag_private_id_data);
+  }
+}
+
+static void simulation_free_data(ID *id)
+{
+  Simulation *simulation = (Simulation *)id;
+
+  BKE_animdata_free(&simulation->id, false);
+
+  if (simulation->nodetree) {
+    ntreeFreeEmbeddedTree(simulation->nodetree);
+    MEM_freeN(simulation->nodetree);
+    simulation->nodetree = nullptr;
+  }
+}
+
+static void simulation_foreach_id(ID *id, LibraryForeachIDData *data)
+{
+  Simulation *simulation = (Simulation *)id;
+  if (simulation->nodetree) {
+    /* nodetree **are owned by IDs**, treat them as mere sub-data and not real ID! */
+    BKE_library_foreach_ID_embedded(data, (ID **)&simulation->nodetree);
+  }
+}
+
+IDTypeInfo IDType_ID_SIM = {
+    /* id_code */ ID_SIM,
+    /* id_filter */ FILTER_ID_SIM,
+    /* main_listbase_index */ INDEX_ID_SIM,
+    /* struct_size */ sizeof(Simulation),
+    /* name */ "Simulation",
+    /* name_plural */ "simulations",
+    /* translation_context */ BLT_I18NCONTEXT_ID_SIMULATION,
+    /* flags */ 0,
+
+    /* init_data */ simulation_init_data,
+    /* copy_data */ simulation_copy_data,
+    /* free_data */ simulation_free_data,
+    /* make_local */ nullptr,
+    /* foreach_id */ simulation_foreach_id,
+};
+
+void *BKE_simulation_add(Main *bmain, const char *name)
+{
+  Simulation *simulation = (Simulation *)BKE_libblock_alloc(bmain, ID_SIM, name, 0);
+
+  simulation_init_data(&simulation->id);
+
+  return simulation;
+}
+
+void BKE_simulation_data_update(Depsgraph *UNUSED(depsgraph),
+                                Scene *UNUSED(scene),
+                                Simulation *UNUSED(simulation))
+{
+}