editor: don't allow entities on top of one another

There are still workarounds for when this is actually desirable.

1 files changed, 2 insertions, 1 deletions

diff --git a/editor/editor.cpp b/editor/editor.cpp
index 1b0611e1..a1de4b4f 100644
--- a/editor/editor.cpp
+++ b/editor/editor.cpp
@@ -110,7 +110,8 @@ void editor::on_click_(world& world, global_coords pos, button b)
             default: break;
             case button::place:
                 if (const auto& sel = mode->get_selected())
-                    mode->place_tile(world, pos, sel, *_app);
+                    if (auto [ch, t] = world[pos]; ch.can_place_entity(sel.proto, pos.local()))
+                        mode->place_tile(world, pos, sel, *_app);
                 break;
             case button::remove:
                 mode->place_tile(world, pos, {}, *_app);