From c0246ce2af4e287b765ded8a85a015f82deb9f09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Masiukiewicz?= <mmcomando@gmail.com>
Date: Thu, 27 Oct 2022 23:29:50 +0200
Subject: [PATCH] Syntax '*ptr = Structure.init' requires opAssign operator,
 get rid of this requirement by using malloc.

This is useful when component is defined in another shared library and we use '-fvisibility=hidden', in that case opAssign is hidden and we will get 'undefined symbol'
---
 source/bubel/ecs/manager.d | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/bubel/ecs/manager.d b/source/bubel/ecs/manager.d
index fb43f67..7861649 100644
--- a/source/bubel/ecs/manager.d
+++ b/source/bubel/ecs/manager.d
@@ -1307,7 +1307,8 @@ export struct EntityManager
             info.size = Comp.sizeof;
         info.alignment = Comp.alignof; //8;
         info.init_data = Mallocator.makeArray!ubyte(Comp.sizeof);
-        *cast(Comp*) info.init_data.ptr = Comp.init; // = Comp();
+        __gshared Comp init_memory;
+        memcpy(info.init_data.ptr, &init_memory, Comp.sizeof);
 
         ushort comp_id = components_map.get(cast(char[]) ComponentName, ushort.max);
         if (comp_id < components.length)