diff --git a/artifacts/ddraw.ini b/artifacts/ddraw.ini
index 2f1d4551..5e700de5 100644
--- a/artifacts/ddraw.ini
+++ b/artifacts/ddraw.ini
@@ -159,9 +159,9 @@ ScrollMod=0
 MouseSensitivity=100
 
 ;DX scancode of a key to press when the middle mouse button is clicked
-;The default of 0x30 toggles between your two weapons
+;The default of 48 ('B' key) toggles between your active items
 ;Set to 0 to disable
-MiddleMouse=0x30
+MiddleMouse=48
 
 ;Set to 1 to reverse the left and right mouse buttons
 ReverseMouseButtons=0
diff --git a/artifacts/scripting/hookscripts.md b/artifacts/scripting/hookscripts.md
index 4b81fec3..fea61176 100644
--- a/artifacts/scripting/hookscripts.md
+++ b/artifacts/scripting/hookscripts.md
@@ -406,7 +406,7 @@ int     ret0 - The new amount of ammo to be consumed, or ammo cost per round for
 #### `HOOK_KEYPRESS (hs_keypress.int)`
 
 Runs once every time when any key was pressed or released.
-- DX codes: (see **dik.h** header)
+- DX codes: see **dik.h** header or https://kippykip.com/b3ddocs/commands/scancodes.htm
 - VK codes: http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731%28v=vs.85%29.aspx
 
 __NOTE:__ if you want to override a key, the new key DX scancode should be the same for both pressed and released events.
diff --git a/sfall/FalloutEngine/Structs.h b/sfall/FalloutEngine/Structs.h
index 799ce698..d52a5996 100644
--- a/sfall/FalloutEngine/Structs.h
+++ b/sfall/FalloutEngine/Structs.h
@@ -66,8 +66,8 @@ struct AnimationSet {
 
 	struct Animation {
 		long animType;
-		long source;
-		long target;
+		GameObject* source;
+		GameObject* target;
 		long data1;
 		long elevation;
 		long animCode;
@@ -84,24 +84,27 @@ static_assert(sizeof(AnimationSet) == 2656, "Incorrect AnimationSet definition."
 
 struct AnimationSad {
 	long flags;
-	long source;
+	GameObject* source;
 	long fid;
 	long animCode;
 	long ticks;
 	long tpf;       // fps
-	long currAnimSet;
+	long animSetSlot;
 	long pathCount; // len
-	long currentAnim;
+	long animStep;  // current step in rotationData/pathData
 	short dstTile;
 	char rotation1;
 	char rotation2;
 
-	struct BuildPathData {
-		long tile;
-		long elevation;
-		long sX;
-		long sY;
-	} pathData[200];
+	union {
+		long rotationData[800];
+		struct BuildPathData {
+			long tile;
+			long elevation;
+			long sX;
+			long sY;
+		} pathData[200];
+	};
 };
 
 static_assert(sizeof(AnimationSad) == 3240, "Incorrect AnimationSad definition.");
diff --git a/sfall/InputFuncs.cpp b/sfall/InputFuncs.cpp
index f8082d29..56e9203c 100644
--- a/sfall/InputFuncs.cpp
+++ b/sfall/InputFuncs.cpp
@@ -52,6 +52,7 @@ static double mousePartX;
 static double mousePartY;
 
 #define MAX_KEYS (264)
+
 static DWORD keysDown[MAX_KEYS] = {0};
 
 static int mouseX;
@@ -60,6 +61,7 @@ static int mouseY;
 static DWORD forcingGraphicsRefresh = 0;
 
 void __stdcall ForceGraphicsRefresh(DWORD d) {
+	if (!d3d9Device) return;
 	forcingGraphicsRefresh = (d == 0) ? 0 : 1;
 }
 
@@ -301,11 +303,14 @@ public:
 
 			for (DWORD i = 0; i < *count; i++) {
 				DWORD dxKey = buf[i].dwOfs;
+				assert(dxKey >= 0 && dxKey < MAX_KEYS);
 				DWORD state = buf[i].dwData & 0x80;
 				DWORD oldState = keysDown[dxKey];
 				keysDown[dxKey] = state;
+
 				HookCommon::KeyPressHook(&dxKey, (state > 0), MapVirtualKeyEx(dxKey, MAPVK_VSC_TO_VK, keyboardLayout));
-				if (dxKey > 0 && dxKey != buf[i].dwOfs) {
+
+				if ((signed)dxKey > 0 && dxKey != buf[i].dwOfs) {
 					keysDown[buf[i].dwOfs] = oldState;
 					buf[i].dwOfs = dxKey; // Override key
 					keysDown[buf[i].dwOfs] = state;
@@ -448,7 +453,7 @@ inline void InitInputFeatures() {
 		mousePartY = 0;
 	} else adjustMouseSpeed = false;
 
-	middleMouseKey = IniReader::GetConfigInt("Input", "MiddleMouse", 0x30);
+	middleMouseKey = IniReader::GetConfigInt("Input", "MiddleMouse", DIK_B);
 	middleMouseDown = false;
 
 	backgroundKeyboard = IniReader::GetConfigInt("Input", "BackgroundKeyboard", 0) != 0;
diff --git a/sfall/Modules/Animations.cpp b/sfall/Modules/Animations.cpp
index e65582a5..db9f9025 100644
--- a/sfall/Modules/Animations.cpp
+++ b/sfall/Modules/Animations.cpp
@@ -30,7 +30,7 @@ enum AnimFlags {
 	e_InCombat  = 0x002,
 	e_Reserved  = 0x004,
 	e_InUse     = 0x008,
-	e_Suspend   = 0x010,
+	e_Suspend   = 0x010, // animation not start running in register_end
 	e_Clear     = 0x020,
 	e_EndAnim   = 0x040,
 	e_DontStand = 0x080,
@@ -66,7 +66,7 @@ static struct AnimSetHack {
 		0x414E48, 0x414EDA, 0x414F5E, 0x414FEE, 0x41505C, 0x4150D0, 0x415158,
 		0x4151B8, 0x415286, 0x41535C, 0x4153D0, 0x41544A, 0x4154EC, 0x4155EA,
 		0x4156C0, 0x4156D5, 0x4156F2, 0x41572F, 0x41573E, 0x415B1B, 0x415B56,
-		0x415BB6, 0x415C7C, 0x415CA3, /*0x415DE4, - conflct with 0x415DE2*/
+		0x415BB6, 0x415C7C, 0x415CA3, /*0x415DE4, - conflict with 0x415DE2*/
 	};
 
 	const DWORD anim_set_4[9] = { // counter
@@ -181,10 +181,10 @@ skip:
 }
 
 static bool __fastcall CheckSetSad(BYTE openFlag, DWORD slot) {
-	if (animSad[slot].currentAnim == -1000) {
+	if (animSad[slot].animStep == -1000) {
 		return true;
 	} else if (!InCombat() && !(openFlag & 1)) {
-		animSad[slot].currentAnim = -1000;
+		animSad[slot].animStep = -1000;
 		return true;
 	}
 	return false;
@@ -206,6 +206,7 @@ end:
 }
 
 static void __declspec(naked) action_climb_ladder_hook() {
+	using namespace fo;
 	__asm {
 		cmp  word ptr [edi + 0x40], 0xFFFF; // DestTile
 		je   skip;
@@ -217,7 +218,7 @@ static void __declspec(naked) action_climb_ladder_hook() {
 		pop  edx;
 		jne  skip;
 reset:
-		and  al, ~0x4; // reset RB_DONTSTAND flag
+		and  al, ~RB_DONTSTAND; // unset flag
 skip:
 		jmp  fo::funcoffs::register_begin_;
 	}
@@ -288,9 +289,9 @@ void ApplyAnimationsAtOncePatches(signed char aniMax) {
 	SafeWriteBatch<DWORD>((DWORD)&animSad->animCode, sadAddrs.sad_C);
 	SafeWriteBatch<DWORD>((DWORD)&animSad->ticks, sadAddrs.sad_10);
 	SafeWriteBatch<DWORD>((DWORD)&animSad->tpf, sadAddrs.sad_14);
-	SafeWriteBatch<DWORD>((DWORD)&animSad->currAnimSet, sadAddrs.sad_18);
+	SafeWriteBatch<DWORD>((DWORD)&animSad->animSetSlot, sadAddrs.sad_18);
 	SafeWriteBatch<DWORD>((DWORD)&animSad->pathCount, sadAddrs.sad_1C);
-	SafeWriteBatch<DWORD>((DWORD)&animSad->currentAnim, sadAddrs.sad_20);
+	SafeWriteBatch<DWORD>((DWORD)&animSad->animStep, sadAddrs.sad_20);
 	SafeWriteBatch<DWORD>((DWORD)&animSad->dstTile, sadAddrs.sad_24);
 	SafeWriteBatch<DWORD>((DWORD)&animSad->rotation1, { 0x416903 });
 	SafeWriteBatch<DWORD>((DWORD)&animSad->rotation2, sadAddrs.sad_27);
diff --git a/sfall/Modules/HookScripts/Common.cpp b/sfall/Modules/HookScripts/Common.cpp
index 2338c914..766a46fb 100644
--- a/sfall/Modules/HookScripts/Common.cpp
+++ b/sfall/Modules/HookScripts/Common.cpp
@@ -174,7 +174,10 @@ void HookCommon::KeyPressHook(DWORD* dxKey, bool pressed, DWORD vKey) {
 	args[1] = *dxKey;
 	args[2] = vKey;
 	RunHookScript(HOOK_KEYPRESS);
-	if (cRet != 0) *dxKey = rets[0];
+	if (cRet != 0) {
+		long retKey = rets[0];
+		if (retKey > 0 && retKey < 264) *dxKey = retKey;
+	}
 	EndHook();
 }