From 74f222c1dbb02bc5b2e85912e8fb78348a587cf3 Mon Sep 17 00:00:00 2001
From: 8dcc <8dcc.git@gmail.com>
Date: Tue, 25 Jul 2023 20:36:44 +0200
Subject: [PATCH] Hook CL_Move

Cheers, @Lak3!

Also add hooks_restore()
---
 src/hooks.c         | 25 +++++++++++++++++++++++++
 src/include/hooks.h |  4 ++++
 2 files changed, 29 insertions(+)

diff --git a/src/hooks.c b/src/hooks.c
index 93b06be..85e0a7c 100644
--- a/src/hooks.c
+++ b/src/hooks.c
@@ -3,6 +3,7 @@
 #include "include/sdk.h"
 #include "include/globals.h"
 #include "include/util.h"
+#include "include/detour.h" /* 8dcc/detour-lib */
 
 /* bhop(), esp(), etc. */
 #include "features/features.h"
@@ -13,6 +14,11 @@ DECL_HOOK(StudioRenderModel);
 
 DECL_HOOK(glColor4f);
 
+/* For detour hooking CL_Move */
+static detour_data_t clmove_data;
+DECL_DETOUR_TYPE(void, clmove);
+DECL_HOOK(CL_Move);
+
 bool hooks_init(void) {
     HOOK(i_client, CL_CreateMove);
     HOOK(i_client, HUD_Redraw);
@@ -20,9 +26,21 @@ bool hooks_init(void) {
 
     GL_HOOK(glColor4f);
 
+    void* clmove_ptr = dlsym(hw, "CL_Move");
+    if (!clmove_ptr)
+        return false;
+
+    /* Initialize clmove_data struct for detour, and add the hook */
+    detour_init(&clmove_data, clmove_ptr, (void*)h_CL_Move);
+    detour_add(&clmove_data);
+
     return true;
 }
 
+void hooks_restore(void) {
+    detour_del(&clmove_data);
+}
+
 /*----------------------------------------------------------------------------*/
 
 void h_CL_CreateMove(float frametime, usercmd_t* cmd, int active) {
@@ -95,3 +113,10 @@ void h_glColor4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a) {
 
     ORIGINAL(glColor4f, r, g, b, a);
 }
+
+/*----------------------------------------------------------------------------*/
+
+void h_CL_Move() {
+    /* printf("Hello from CL_Move!\n"); */
+    CALL_ORIGINAL(clmove_data, clmove);
+}
diff --git a/src/include/hooks.h b/src/include/hooks.h
index 126e6e6..674aafc 100644
--- a/src/include/hooks.h
+++ b/src/include/hooks.h
@@ -89,10 +89,14 @@
 /*----------------------------------------------------------------------------*/
 
 bool hooks_init(void);
+void hooks_restore(void);
+
 DECL_HOOK_EXTERN(void, CL_CreateMove, float, usercmd_t*, int);
 DECL_HOOK_EXTERN(int, HUD_Redraw, float, int);
 DECL_HOOK_EXTERN(void, StudioRenderModel, void* this_ptr);
 
 DECL_HOOK_EXTERN(void, glColor4f, GLfloat r, GLfloat g, GLfloat b, GLfloat a);
 
+DECL_HOOK_EXTERN(void, CL_Move);
+
 #endif /* HOOKS_H_ */