From c2aecdc0d6089a3c41b3d15c45cdb49fee6a45cc Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 7 Apr 2025 20:48:14 +0100
Subject: Add Asset interface to create an arbitrarily placed instance

InstanceProxy is returned out via a std::any containing a
std::shared_ptr because any can only contain copyable things.
---
 assetFactory/asset.cpp | 6 ++++++
 assetFactory/asset.h   | 5 +++++
 2 files changed, 11 insertions(+)

(limited to 'assetFactory')

diff --git a/assetFactory/asset.cpp b/assetFactory/asset.cpp
index e3f5feb..0254943 100644
--- a/assetFactory/asset.cpp
+++ b/assetFactory/asset.cpp
@@ -7,6 +7,12 @@ Asset::persist(Persistence::PersistenceStore & store)
 	return STORE_MEMBER(id) && STORE_MEMBER(name);
 }
 
+std::any
+Asset::createAt(const Location &) const
+{
+	return {};
+}
+
 Asset::TexturePtr
 Asset::getTexture() const
 {
diff --git a/assetFactory/asset.h b/assetFactory/asset.h
index b5de056..061a7c8 100644
--- a/assetFactory/asset.h
+++ b/assetFactory/asset.h
@@ -2,17 +2,22 @@
 
 #include "factoryMesh.h"
 #include "persistence.h"
+#include <any>
 #include <manyPtr.h>
 #include <stdTypeDefs.h>
 
 class TextureAtlas;
 class Renderable;
+class Location;
 
 class Asset : public Persistence::Persistable, public StdTypeDefs<Asset> {
 public:
 	using ManyPtr = ManySharedPtr<Asset, const Renderable>;
 	using TexturePtr = std::shared_ptr<TextureAtlas>;
 
+	/// Used only for the asset viewer
+	[[nodiscard]] virtual std::any createAt(const Location &) const;
+
 	std::string id;
 	std::string name;
 
-- 
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