From 1f66f0d9a2d9bde9d8aac465739afe33ff174707 Mon Sep 17 00:00:00 2001
From: brankoku <48296877+brankoku@users.noreply.github.com>
Date: Sun, 24 Nov 2019 08:01:35 -0500
Subject: [PATCH] [text] `TextFormat()` caching (#1015)

---
 src/text.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/text.c b/src/text.c
index 3f8e22b10..2fff08d8c 100644
--- a/src/text.c
+++ b/src/text.c
@@ -1102,9 +1102,16 @@ unsigned int TextLength(const char *text)
 }
 
 // Formatting of text with variables to 'embed'
+// WARNING: the string returned will expire after this function is called MAX_TEXT_BUFFERS times
 const char *TextFormat(const char *text, ...)
 {
-    static char buffer[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+    #define MAX_TEXT_BUFFERS 8
+    // We create an array of buffers so strings don't expire until MAX_TEXT_BUFFERS invocations
+    static char cache[MAX_TEXT_BUFFERS][MAX_TEXT_BUFFER_LENGTH] = { 0 };
+    static int  index = 0;
+    char       *buffer = cache[index];
+    index += 1;
+    index %= MAX_TEXT_BUFFERS;
 
     va_list args;
     va_start(args, text);
@@ -1112,6 +1119,7 @@ const char *TextFormat(const char *text, ...)
     va_end(args);
 
     return buffer;
+    #undef MAX_TEXT_BUFFERS
 }
 
 // Get a piece of a text string