From a79fd56051a759751bf8e07ca982072707ed412e Mon Sep 17 00:00:00 2001
From: Kevin Trogant <kevin@trogant.de>
Date: Sat, 3 Aug 2024 12:43:09 +0200
Subject: [PATCH] feat(cvar): Unsigned integer type for cvars

---
 src/runtime/config.c  | 6 ++++++
 src/runtime/config.h  | 6 +++++-
 src/runtime/runtime.h | 1 +
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/runtime/config.c b/src/runtime/config.c
index 0914376..d4e92ce 100644
--- a/src/runtime/config.c
+++ b/src/runtime/config.c
@@ -102,6 +102,9 @@ RT_DLLEXPORT void rtNotifyCVARChange(const rt_cvar *cvar) {
     case RT_CVAR_TYPE_SIZE:
         rtLog("CVAR", "Changed %s to %zu.", cvar->name, cvar->sz);
         break;
+    case RT_CVAR_TYPE_UINT:
+        rtLog("CVAR", "Changed %s to %u.", cvar->name, cvar->ui);
+        break;
     default:
         rtLog("CVAR", "Changed %s, but the cvar has an invalid type.", cvar->name);
         break;
@@ -299,6 +302,9 @@ RT_DLLEXPORT rt_result rtSetCVARFromString(rt_cvar *cvar, const char *value_str)
     case RT_CVAR_TYPE_SIZE:
         num_read = sscanf(value_str, "%zu", &cvar->sz);
         break;
+    case RT_CVAR_TYPE_UINT:
+        num_read = sscanf(value_str, "%u", &cvar->ui);
+        break;
     default:
         rtReportError("CVAR", "CVar %s has an invalid type.", cvar->name);
         return 0;
diff --git a/src/runtime/config.h b/src/runtime/config.h
index e5ce05f..a1c5952 100644
--- a/src/runtime/config.h
+++ b/src/runtime/config.h
@@ -13,6 +13,7 @@ typedef enum {
     RT_CVAR_TYPE_FLOAT,
     RT_CVAR_TYPE_STRING,
     RT_CVAR_TYPE_SIZE,
+    RT_CVAR_TYPE_UINT,
 } rt_cvar_type;
 
 typedef struct {
@@ -23,6 +24,7 @@ typedef struct {
         float f;
         const char *s;
         size_t sz;
+        unsigned int ui;
     };
     rt_cvar_type type;
 } rt_cvar;
@@ -38,12 +40,14 @@ typedef void(rt_cvar_change_event_handler_fn)(rt_cvar *cvar, void *userdata);
     rt_cvar n = {.name = #n, .description = d, .s = (v), .type = RT_CVAR_TYPE_STRING}
 #define RT_CVAR_SZ(n, d, v)                                                                        \
     rt_cvar n = {.name = #n, .description = d, .sz = (v), .type = RT_CVAR_TYPE_SIZE}
+#define RT_CVAR_UI(n, d, v)                                                                        \
+    rt_cvar n = {.name = #n, .description = d, .ui = (v), .type = RT_CVAR_TYPE_UINT}
 
 RT_DLLEXPORT void rtRegisterCVAR(rt_cvar *cvar);
 
 RT_DLLEXPORT rt_cvar *rtGetCVAR(const char *name);
 
-/* Change event handlers are called when rtNotifyCVARChange is called. 
+/* Change event handlers are called when rtNotifyCVARChange is called.
  * The system gives no guarantees about the order in which these are called.
  *
  * NOTE: A internal mutex is held while the event handlers run, which means that */
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 6ccad0a..f1a1736 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -75,6 +75,7 @@ enum {
     RT_SUCCESS       = 0,
     RT_OUT_OF_MEMORY = 1,
     RT_INVALID_VALUE = 2,
+    RT_NOT_SUPPORTED = 3,
 
     RT_CUSTOM_ERROR_START,