From b38313c518d99a43c8a2438ea20f1cf84636d794 Mon Sep 17 00:00:00 2001
From: Omniscient <17525998+omnisci3nce@users.noreply.github.com>
Date: Sat, 24 Feb 2024 22:54:04 +1100
Subject: add handle def macro

---
 src/defines.h               |  7 +++++++
 src/renderer/render_types.h | 10 ++++++++++
 src/systems/text.h          |  6 ------
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/defines.h b/src/defines.h
index 79b735d..52aa7b0 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -42,6 +42,13 @@ _Static_assert(sizeof(ptrdiff_t) == 8, "");
 
 #define alignof(x) _Alignof(x)
 
+// Wrap a u32 to make a type-safe "handle" or ID
+#define CORE_DEFINE_HANDLE(name) \
+  typedef struct name name;      \
+  struct name {                  \
+    u32 raw;                     \
+  }
+
 /*
 Possible platform defines:
 #define CEL_PLATFORM_LINUX 1
diff --git a/src/renderer/render_types.h b/src/renderer/render_types.h
index 896a1a5..a3639e7 100644
--- a/src/renderer/render_types.h
+++ b/src/renderer/render_types.h
@@ -12,6 +12,16 @@
 
 struct GLFWwindow;
 
+#ifndef RESOURCE_HANDLE_DEFS
+CORE_DEFINE_HANDLE(texture_handle);
+#define RESOURCE_HANDLE_DEFS
+#endif
+
+/* @brief Opaque wrapper around a shader program */
+typedef struct shader {
+  u32 program_id;
+} shader;
+
 /** @brief configuration passed to the renderer at init time */
 typedef struct renderer_config {
   char window_name[256];
diff --git a/src/systems/text.h b/src/systems/text.h
index 3c580df..19248a6 100644
--- a/src/systems/text.h
+++ b/src/systems/text.h
@@ -10,12 +10,6 @@
 #include "render_types.h"
 
 struct core;
-typedef struct texture_handle {
-  u32 raw
-} texture_handle;
-typedef struct shader {
-  u32 raw
-} shader;
 
 /** @brief internal font struct */
 typedef struct font {
-- 
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