From d72a0cb7a039d211d87a91f1fce653733325edef Mon Sep 17 00:00:00 2001
From: Silent <zdanio95@gmail.com>
Date: Sun, 17 Mar 2024 18:15:56 +0100
Subject: [PATCH] Fix probabilities in CVehicle::InflictDamage incorrectly
 assuming a random range from 0 to 100.000

---
 SilentPatchIII/SilentPatchIII.cpp | 10 ++++++++++
 SilentPatchVC/SilentPatchVC.cpp   |  8 ++++++++
 2 files changed, 18 insertions(+)

diff --git a/SilentPatchIII/SilentPatchIII.cpp b/SilentPatchIII/SilentPatchIII.cpp
index 1838b7c..e3b40ba 100644
--- a/SilentPatchIII/SilentPatchIII.cpp
+++ b/SilentPatchIII/SilentPatchIII.cpp
@@ -1393,6 +1393,16 @@ void Patch_III_Common()
 		Nop(setEvasiveDive.get<void>(), 1);
 		InjectHook(setEvasiveDive.get<void>(1), &CalculateAngle_Hook, HookType::Call);
 	}
+
+
+	// Fix probabilities in CVehicle::InflictDamage incorrectly assuming a random range from 0 to 100.000
+	{
+		auto probability_do_nothing = get_pattern("66 81 7E 5A ? ? 73 50", 4);
+		auto probability_flee = get_pattern("0F B7 46 5A 3D ? ? ? ? 0F 8E", 4 + 1);
+
+		Patch<uint16_t>(probability_do_nothing, 35000u * 32767u / 100000u);
+		Patch<uint32_t>(probability_flee, 75000u * 32767u / 100000u);
+	}
 }
 
 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
diff --git a/SilentPatchVC/SilentPatchVC.cpp b/SilentPatchVC/SilentPatchVC.cpp
index 3e921ed..6d0a1ea 100644
--- a/SilentPatchVC/SilentPatchVC.cpp
+++ b/SilentPatchVC/SilentPatchVC.cpp
@@ -1289,6 +1289,14 @@ void Patch_VC_Common()
 		Patch<uint8_t>(forAllAtomics.get<void>(), 0x53);
 		InterceptCall(forAllAtomics.get<void>(1), orgRpClumpForAllAtomics, RpClumpForAllAtomics_ExtraComps);
 	}
+
+
+	// Fix probabilities in CVehicle::InflictDamage incorrectly assuming a random range from 0 to 100.000
+	{
+		auto probability = get_pattern("66 81 7B 5A ? ? 73 50", 4);
+
+		Patch<uint16_t>(probability, 35000u / 2u);
+	}
 }
 
 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)