Nodes: add Collection socket type

The implementation is pretty much the same as for Object sockets.
The socket color is the one that is used for collections in the outliner.

Part of D9739.

1 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_node_types.h b/source/blender/makesdna/DNA_node_types.h
index b8aeaa2bd89..e04867438f1 100644
--- a/source/blender/makesdna/DNA_node_types.h
+++ b/source/blender/makesdna/DNA_node_types.h
@@ -44,6 +44,7 @@ struct bNodePreview;
 struct bNodeTreeExec;
 struct bNodeType;
 struct uiBlock;
+struct Collection;
 
 #define NODE_MAXSTR 64
 
@@ -160,6 +161,7 @@ typedef enum eNodeSocketDatatype {
   SOCK_OBJECT = 8,
   SOCK_IMAGE = 9,
   SOCK_GEOMETRY = 10,
+  SOCK_COLLECTION = 11,
 } eNodeSocketDatatype;
 
 /* socket shape */
@@ -580,6 +582,10 @@ typedef struct bNodeSocketValueImage {
   struct Image *value;
 } bNodeSocketValueImage;
 
+typedef struct bNodeSocketValueCollection {
+  struct Collection *value;
+} bNodeSocketValueCollection;
+
 /* data structs, for node->storage */
 enum {
   CMP_NODE_MASKTYPE_ADD = 0,