1 files changed, 30 insertions, 0 deletions
diff --git a/src/editor/editor.cpp b/src/editor/editor.cpp
index ad23d1e..3c67ecd 100644
--- a/src/editor/editor.cpp
+++ b/src/editor/editor.cpp
@@ -4,6 +4,36 @@
 
 GAME_EDITOR* editor = 0;
 
+void editor_register_grid_dependency( GAME_EDITOR* e, void* tag, EDITOR_GRID_DEP_CALLBACK cb ) {
+  if( !e || !tag || !cb )
+    return;
+
+  I32 idx = e->grid_dependencies.idx_where( fn( GAME_EDITOR::GRID_DEPENDENCY* dep ) {
+    return dep->tag == tag;
+  } );
+
+  if( idx != -1 ) {
+    e->grid_dependencies[idx].cb = cb;
+    return;
+  }
+
+  GAME_EDITOR::GRID_DEPENDENCY dep;
+  dep.tag = tag;
+  dep.cb = cb;
+  e->grid_dependencies.push( dep );
+}
+
+void editor_notify_grid_change( GAME_EDITOR* e ) {
+  if( !e )
+    return;
+
+  e->grid_dependencies.each( fn( GAME_EDITOR::GRID_DEPENDENCY* dep ) {
+    if( dep->cb ) {
+      dep->cb( e );
+    }
+  } );
+}
+
 GAME_EDITOR* editor_create( GAME_DATA* game ) {
   if( editor ) {
     dlog( "editor_create() : attempted to create editor when one already exists\n" );