From d7388ee954d9ea7acea346aad4af57764e20dd04 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sat, 23 Jan 2021 14:51:57 +0000
Subject: Allow physical objects to share meshes and textures

---
 game/physical.cpp | 12 +++++++++---
 game/physical.h   | 15 +++++++++++----
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/game/physical.cpp b/game/physical.cpp
index f4c17d4..5263268 100644
--- a/game/physical.cpp
+++ b/game/physical.cpp
@@ -1,8 +1,14 @@
 #include "physical.h"
+#include "gfx/models/mesh.h"
+#include "gfx/models/texture.h"
+#include <cache.h>
 #include <gfx/gl/shader.h>
 
+Cache<Mesh> Physical::cachedMesh;
+Cache<Texture> Physical::cachedTexture;
+
 Physical::Physical(glm::vec3 where, const std::string & m, const std::string & t) :
-	location {where}, mesh {m}, texture {t}
+	location {where}, mesh {cachedMesh.get(m)}, texture {cachedTexture.get(t)}
 {
 }
 
@@ -10,6 +16,6 @@ void
 Physical::render(const Shader & shader, const Camera & camera) const
 {
 	shader.Update(location, camera);
-	texture.Bind();
-	mesh.Draw();
+	texture->Bind();
+	mesh->Draw();
 }
diff --git a/game/physical.h b/game/physical.h
index ff9d316..ad2207d 100644
--- a/game/physical.h
+++ b/game/physical.h
@@ -1,14 +1,16 @@
 #ifndef PHYSICAL_H
 #define PHYSICAL_H
 
-#include "gfx/models/mesh.h"
-#include "gfx/models/texture.h"
 #include <gfx/gl/transform.h>
 #include <glm/glm.hpp>
+#include <memory>
 #include <string>
 
 class Camera;
 class Shader;
+class Mesh;
+class Texture;
+template<typename Obj> class Cache;
 
 class Physical {
 public:
@@ -24,8 +26,13 @@ public:
 
 protected:
 	Transform location;
-	Mesh mesh;
-	Texture texture;
+
+	std::shared_ptr<Mesh> mesh;
+	std::shared_ptr<Texture> texture;
+
+private:
+	static Cache<Mesh> cachedMesh;
+	static Cache<Texture> cachedTexture;
 };
 
 #endif
-- 
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