From 6917ff7f3c150d6cc560d071fc65c420ae8243b5 Mon Sep 17 00:00:00 2001
From: shmocz <112764837+shmocz@users.noreply.github.com>
Date: Sat, 3 Aug 2024 13:59:20 +0300
Subject: [PATCH] Improvements to DisableChat feature

---
 Makefile             |  1 +
 src/chat_disable.asm | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 src/chat_disable.asm

diff --git a/Makefile b/Makefile
index bf0e8d7..da58d38 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,7 @@ EXE_OBJS = \
 		src/loading.o \
 		src/graphics-patch.o \
 		src/copy-protection.o \
+		src/chat_disable.o \
 		src/multi_spectators_hack.o \
 		src/absolute_prism_bug_fix.o \
 		src/self_spy_exploit_fix.o \
diff --git a/src/chat_disable.asm b/src/chat_disable.asm
new file mode 100644
index 0000000..76ea802
--- /dev/null
+++ b/src/chat_disable.asm
@@ -0,0 +1,24 @@
+%include "macros/patch.inc"
+%include "macros/datatypes.inc"
+
+cextern DisableChat
+
+; Don't send message to others.
+hack 0x0055EF38, 0x0055EF3E
+    cmp byte[DisableChat], 0
+    jz  .Reg
+    jmp 0x0055F056
+
+.Reg:
+    cmp edi, ebx
+    mov dword[esp + 0x14], ebx
+    jmp hackend
+
+; After receiving message, don't play sound if AddMessage returns NULL.
+hack 0x0048D97E
+    cmp eax, 0
+    je 0x0048D99A
+
+.Reg:
+    mov eax, [0x008871E0]
+    jmp hackend
\ No newline at end of file