diff --git a/src/d_clisrv.c b/src/d_clisrv.c
index fc6ccf81..49e38fac 100644
--- a/src/d_clisrv.c
+++ b/src/d_clisrv.c
@@ -2419,7 +2419,7 @@ void CL_ClearPlayer(INT32 playernum)
 //
 // Removes a player from the current game
 //
-static void CL_RemovePlayer(INT32 playernum)
+static void CL_RemovePlayer(INT32 playernum, INT32 reason)
 {
 	// Sanity check: exceptional cases (i.e. c-fails) can cause multiple
 	// kick commands to be issued for the same player.
@@ -2477,6 +2477,10 @@ static void CL_RemovePlayer(INT32 playernum)
 			}
 		}
 	}
+	
+#ifdef HAVE_BLUA
+	LUAh_PlayerQuit(&players[playernum], reason); // Lua hook for player quitting
+#endif
 
 	// Reset player data
 	CL_ClearPlayer(playernum);
@@ -2757,6 +2761,7 @@ static void Got_KickCmd(UINT8 **p, INT32 playernum)
 	INT32 pnum, msg;
 	XBOXSTATIC char buf[3 + MAX_REASONLENGTH];
 	char *reason = buf;
+	kickreason_t kickreason = KR_KICK;
 
 	pnum = READUINT8(*p);
 	msg = READUINT8(*p);
@@ -2831,14 +2836,17 @@ static void Got_KickCmd(UINT8 **p, INT32 playernum)
 	{
 		case KICK_MSG_GO_AWAY:
 			HU_AddChatText(va("\x82*%s has been kicked (Go away)", player_names[pnum]), false);
+			kickreason = KR_KICK;
 			break;
 #ifdef NEWPING
 		case KICK_MSG_PING_HIGH:
 			HU_AddChatText(va("\x82*%s left the game (Broke ping limit)", player_names[pnum]), false);
+			kickreason = KR_PINGLIMIT;
 			break;
 #endif
 		case KICK_MSG_CON_FAIL:
 			HU_AddChatText(va("\x82*%s left the game (Synch Failure)", player_names[pnum]), false);
+			kickreason = KR_SYNCH;
 
 			if (M_CheckParm("-consisdump")) // Helps debugging some problems
 			{
@@ -2875,21 +2883,26 @@ static void Got_KickCmd(UINT8 **p, INT32 playernum)
 			break;
 		case KICK_MSG_TIMEOUT:
 			HU_AddChatText(va("\x82*%s left the game (Connection timeout)", player_names[pnum]), false);
+			kickreason = KR_TIMEOUT;
 			break;
 		case KICK_MSG_PLAYER_QUIT:
 			if (netgame) // not splitscreen/bots
 				HU_AddChatText(va("\x82*%s left the game", player_names[pnum]), false);
+			kickreason = KR_LEAVE;
 			break;
 		case KICK_MSG_BANNED:
 			HU_AddChatText(va("\x82*%s has been banned (Don't come back)", player_names[pnum]), false);
+			kickreason = KR_BAN;
 			break;
 		case KICK_MSG_CUSTOM_KICK:
 			READSTRINGN(*p, reason, MAX_REASONLENGTH+1);
 			HU_AddChatText(va("\x82*%s has been kicked (%s)", player_names[pnum], reason), false);
+			kickreason = KR_KICK;
 			break;
 		case KICK_MSG_CUSTOM_BAN:
 			READSTRINGN(*p, reason, MAX_REASONLENGTH+1);
 			HU_AddChatText(va("\x82*%s has been banned (%s)", player_names[pnum], reason), false);
+			kickreason = KR_BAN;
 			break;
 	}
 
@@ -2918,7 +2931,7 @@ static void Got_KickCmd(UINT8 **p, INT32 playernum)
 	}
 	else if (server)
 	{
-		XBOXSTATIC UINT8 buf[0];
+		XBOXSTATIC UINT8 buf[2];
 
 		// Sal: Because kicks (and a lot of other commands) are player-based, we can't tell which player pnum is on the node from a glance.
 		// When we want to remove everyone from a node, we have to get the kicked player's node, then remove everyone on that node manually so we don't miss any.
@@ -2930,10 +2943,15 @@ static void Got_KickCmd(UINT8 **p, INT32 playernum)
 #define removethisplayer(otherp) \
 	if (otherp >= 0) \
 	{ \
-		if (otherp != pnum) \
-			HU_AddChatText(va("\x82*%s left the game (Joined with %s)", player_names[otherp], player_names[pnum]), false); \
 		buf[0] = (UINT8)otherp; \
-		SendNetXCmd(XD_REMOVEPLAYER, &buf, 1); \
+		if (otherp != pnum) \
+		{ \
+			HU_AddChatText(va("\x82*%s left the game (Joined with %s)", player_names[otherp], player_names[pnum]), false); \
+			buf[1] = KR_LEAVE; \
+		} \
+		else \
+			buf[1] = (UINT8)kickreason; \
+		SendNetXCmd(XD_REMOVEPLAYER, &buf, 2); \
 		otherp = -1; \
 	}
 		removethisplayer(nodetoplayer[playernode[pnum]])
@@ -3275,6 +3293,8 @@ static void Got_AddPlayer(UINT8 **p, INT32 playernum)
 // Xcmd XD_REMOVEPLAYER
 static void Got_RemovePlayer(UINT8 **p, INT32 playernum)
 {
+	SINT8 pnum, reason;
+
 	if (playernum != serverplayer && !IsPlayerAdmin(playernum))
 	{
 		// protect against hacked/buggy client
@@ -3290,7 +3310,10 @@ static void Got_RemovePlayer(UINT8 **p, INT32 playernum)
 		return;
 	}
 
-	CL_RemovePlayer(READUINT8(*p));
+	pnum = READUINT8(*p);
+	reason = READUINT8(*p);
+
+	CL_RemovePlayer(pnum, reason);
 }
 
 static boolean SV_AddWaitingPlayers(void)
diff --git a/src/d_clisrv.h b/src/d_clisrv.h
index 4d738632..cee64a78 100644
--- a/src/d_clisrv.h
+++ b/src/d_clisrv.h
@@ -483,6 +483,17 @@ extern consvar_t cv_playbackspeed;
 #define KICK_MSG_CUSTOM_KICK 7
 #define KICK_MSG_CUSTOM_BAN  8
 
+typedef enum
+{
+	KR_KICK          = 1, //Kicked by server
+	KR_PINGLIMIT     = 2, //Broke Ping Limit
+	KR_SYNCH         = 3, //Synch Failure
+	KR_TIMEOUT       = 4, //Connection Timeout 
+	KR_BAN           = 5, //Banned by server
+	KR_LEAVE         = 6, //Quit the game
+	
+} kickreason_t;
+
 extern boolean server;
 #define client (!server)
 extern boolean dedicated; // For dedicated server
diff --git a/src/dehacked.c b/src/dehacked.c
index 77dfbf7d..040b6d30 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -32,6 +32,7 @@
 #include "fastcmp.h"
 #include "lua_script.h"
 #include "lua_hook.h"
+#include "d_clisrv.h"
 
 #include "m_cond.h"
 
@@ -8661,6 +8662,14 @@ struct {
 	{"FF_COLORMAPONLY",FF_COLORMAPONLY},       ///< Only copy the colormap, not the lightlevel
 	{"FF_GOOWATER",FF_GOOWATER},               ///< Used with ::FF_SWIMMABLE. Makes thick bouncey goop.
 
+#ifdef ESLOPE
+	// Slope flags
+	{"SL_NOPHYSICS",SL_NOPHYSICS},      // Don't do momentum adjustment with this slope
+	{"SL_NODYNAMIC",SL_NODYNAMIC},      // Slope will never need to move during the level, so don't fuss with recalculating it
+	{"SL_ANCHORVERTEX",SL_ANCHORVERTEX},// Slope is using a Slope Vertex Thing to anchor its position
+	{"SL_VERTEXSLOPE",SL_VERTEXSLOPE},  // Slope is built from three Slope Vertex Things
+#endif
+
 	// Angles
 	{"ANG1",ANG1},
 	{"ANG2",ANG2},
@@ -8789,6 +8798,14 @@ struct {
 	{"V_CHARCOLORSHIFT",V_CHARCOLORSHIFT},
 	{"V_ALPHASHIFT",V_ALPHASHIFT},
 
+	//Kick Reasons
+	{"KR_KICK",KR_KICK},
+	{"KR_PINGLIMIT",KR_PINGLIMIT},
+	{"KR_SYNCH",KR_SYNCH},
+	{"KR_TIMEOUT",KR_TIMEOUT},
+	{"KR_BAN",KR_BAN},
+	{"KR_LEAVE",KR_LEAVE},
+
 	// SRB2Kart
 	// kartitems_t
 	{"KITEM_SAD",KITEM_SAD}, // Actual items (can be set for k_itemtype)
@@ -9662,6 +9679,9 @@ static inline int lib_getenum(lua_State *L)
 	} else if (fastcmp(word,"maptol")) {
 		lua_pushinteger(L, maptol);
 		return 1;
+	} else if (fastcmp(word,"ultimatemode")) {
+		lua_pushboolean(L, ultimatemode != 0);
+		return 1;
 	} else if (fastcmp(word,"mariomode")) {
 		lua_pushboolean(L, mariomode != 0);
 		return 1;
diff --git a/src/i_tcp.c b/src/i_tcp.c
index 16e7bf2f..9227865e 100644
--- a/src/i_tcp.c
+++ b/src/i_tcp.c
@@ -262,6 +262,33 @@ static void wattcp_outch(char s)
 }
 #endif
 
+#ifdef USE_WINSOCK
+// stupid microsoft makes things complicated
+static char *get_WSAErrorStr(int e)
+{
+	static char buf[256]; // allow up to 255 bytes
+
+	buf[0] = '\0';
+
+	FormatMessageA(
+		FORMAT_MESSAGE_FROM_SYSTEM |
+		FORMAT_MESSAGE_IGNORE_INSERTS,
+		NULL,
+		(DWORD)e,
+		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+		(LPTSTR)buf,
+		sizeof (buf),
+		NULL);
+
+	if (!buf[0]) // provide a fallback error message if no message is available for some reason
+		sprintf(buf, "Unknown error");
+
+	return buf;
+}
+#undef strerror
+#define strerror get_WSAErrorStr
+#endif
+
 #ifdef USE_WINSOCK2
 #define inet_ntop inet_ntopA
 #define HAVE_NTOP
@@ -740,9 +767,13 @@ static void SOCK_Send(void)
 		c = SOCK_SendToAddr(nodesocket[doomcom->remotenode], &clientaddress[doomcom->remotenode]);
 	}
 
-	if (c == ERRSOCKET && errno != ECONNREFUSED && errno != EWOULDBLOCK)
-		I_Error("SOCK_Send, error sending to node %d (%s) #%u: %s", doomcom->remotenode,
-			SOCK_GetNodeAddress(doomcom->remotenode), errno, strerror(errno));
+	if (c == ERRSOCKET)
+	{
+		int e = errno; // save error code so it can't be modified later
+		if (e != ECONNREFUSED && e != EWOULDBLOCK)
+			I_Error("SOCK_Send, error sending to node %d (%s) #%u: %s", doomcom->remotenode,
+				SOCK_GetNodeAddress(doomcom->remotenode), e, strerror(e));
+	}
 }
 #endif
 
diff --git a/src/lua_baselib.c b/src/lua_baselib.c
index 333ce015..faeb875b 100644
--- a/src/lua_baselib.c
+++ b/src/lua_baselib.c
@@ -14,6 +14,9 @@
 #ifdef HAVE_BLUA
 #include "p_local.h"
 #include "p_setup.h" // So we can have P_SetupLevelSky
+#ifdef ESLOPE
+#include "p_slopes.h" // P_GetZAt
+#endif
 #include "z_zone.h"
 #include "r_main.h"
 #include "r_things.h"
@@ -1618,6 +1621,24 @@ static int lib_evCrumbleChain(lua_State *L)
 	return 0;
 }
 
+#ifdef ESLOPE
+// P_SLOPES
+////////////
+
+static int lib_pGetZAt(lua_State *L)
+{
+	pslope_t *slope = *((pslope_t **)luaL_checkudata(L, 1, META_SLOPE));
+	fixed_t x = luaL_checkfixed(L, 2);
+	fixed_t y = luaL_checkfixed(L, 3);
+	//HUDSAFE
+	if (!slope)
+		return LUA_ErrInvalid(L, "pslope_t");
+
+	lua_pushfixed(L, P_GetZAt(slope, x, y));
+	return 1;
+}
+#endif
+
 // R_DEFS
 ////////////
 
@@ -2571,6 +2592,11 @@ static luaL_Reg lib[] = {
 	{"P_StartQuake",lib_pStartQuake},
 	{"EV_CrumbleChain",lib_evCrumbleChain},
 
+#ifdef ESLOPE
+	// p_slopes
+	{"P_GetZAt",lib_pGetZAt},
+#endif
+
 	// r_defs
 	{"R_PointToAngle",lib_rPointToAngle},
 	{"R_PointToAngle2",lib_rPointToAngle2},
diff --git a/src/lua_hook.h b/src/lua_hook.h
index 7acc0d0f..26b70570 100644
--- a/src/lua_hook.h
+++ b/src/lua_hook.h
@@ -43,6 +43,7 @@ enum hook {
 	hook_PlayerMsg,
 	hook_HurtMsg,
 	hook_PlayerSpawn,
+	hook_PlayerQuit,
 
 	hook_MAX // last hook
 };
@@ -77,5 +78,6 @@ boolean LUAh_LinedefExecute(line_t *line, mobj_t *mo, sector_t *sector); // Hook
 boolean LUAh_PlayerMsg(int source, int target, int flags, char *msg, int mute); // Hook for chat messages
 boolean LUAh_HurtMsg(player_t *player, mobj_t *inflictor, mobj_t *source); // Hook for hurt messages
 #define LUAh_PlayerSpawn(player) LUAh_PlayerHook(player, hook_PlayerSpawn) // Hook for G_SpawnPlayer
+void LUAh_PlayerQuit(player_t *plr, int reason); // Hook for player quitting
 
 #endif
diff --git a/src/lua_hooklib.c b/src/lua_hooklib.c
index 5b05b77c..f06e28cd 100644
--- a/src/lua_hooklib.c
+++ b/src/lua_hooklib.c
@@ -54,6 +54,7 @@ const char *const hookNames[hook_MAX+1] = {
 	"PlayerMsg",
 	"HurtMsg",
 	"PlayerSpawn",
+	"PlayerQuit",
 	NULL
 };
 
@@ -1081,4 +1082,30 @@ void LUAh_NetArchiveHook(lua_CFunction archFunc)
 	// stack: tables
 }
 
+void LUAh_PlayerQuit(player_t *plr, int reason)
+{
+	hook_p hookp;
+	if (!gL || !(hooksAvailable[hook_PlayerQuit/8] & (1<<(hook_PlayerQuit%8))))
+		return;
+
+	lua_settop(gL, 0);
+
+	for (hookp = roothook; hookp; hookp = hookp->next)
+		if (hookp->type == hook_PlayerQuit)
+		{
+		    if (lua_gettop(gL) == 0)
+		    {
+		        LUA_PushUserdata(gL, plr, META_PLAYER); // Player that quit
+		        lua_pushinteger(gL, reason); // Reason for quitting
+		    }
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -3);
+			lua_pushvalue(gL, -3);
+			LUA_Call(gL, 2);
+		}
+
+	lua_settop(gL, 0);
+}
+
 #endif
diff --git a/src/lua_libs.h b/src/lua_libs.h
index 55b2558d..01345ee1 100644
--- a/src/lua_libs.h
+++ b/src/lua_libs.h
@@ -40,6 +40,11 @@ extern lua_State *gL;
 #define META_SUBSECTOR "SUBSECTOR_T*"
 #define META_SECTOR "SECTOR_T*"
 #define META_FFLOOR "FFLOOR_T*"
+#ifdef ESLOPE
+#define META_SLOPE "PSLOPE_T*"
+#define META_VECTOR2 "VECTOR2_T"
+#define META_VECTOR3 "VECTOR3_T"
+#endif
 #define META_MAPHEADER "MAPHEADER_T*"
 
 #define META_CVAR "CONSVAR_T*"
diff --git a/src/lua_maplib.c b/src/lua_maplib.c
index f78f4731..655165e6 100644
--- a/src/lua_maplib.c
+++ b/src/lua_maplib.c
@@ -16,6 +16,10 @@
 #include "p_local.h"
 #include "p_setup.h"
 #include "z_zone.h"
+#ifdef ESLOPE
+#include "p_slopes.h"
+#endif
+#include "r_main.h"
 
 #include "lua_script.h"
 #include "lua_libs.h"
@@ -38,7 +42,13 @@ enum sector_e {
 	sector_heightsec,
 	sector_camsec,
 	sector_lines,
+#ifdef ESLOPE
+	sector_ffloors,
+	sector_fslope,
+	sector_cslope
+#else
 	sector_ffloors
+#endif
 };
 
 static const char *const sector_opt[] = {
@@ -55,6 +65,10 @@ static const char *const sector_opt[] = {
 	"camsec",
 	"lines",
 	"ffloors",
+#ifdef ESLOPE
+	"f_slope",
+	"c_slope",
+#endif
 	NULL};
 
 enum subsector_e {
@@ -160,6 +174,10 @@ enum ffloor_e {
 	ffloor_toplightlevel,
 	ffloor_bottomheight,
 	ffloor_bottompic,
+#ifdef ESLOPE
+	ffloor_tslope,
+	ffloor_bslope,
+#endif
 	ffloor_sector,
 	ffloor_flags,
 	ffloor_master,
@@ -176,6 +194,10 @@ static const char *const ffloor_opt[] = {
 	"toplightlevel",
 	"bottomheight",
 	"bottompic",
+#ifdef ESLOPE
+	"t_slope",
+	"b_slope",
+#endif
 	"sector", // secnum pushed as control sector userdata
 	"flags",
 	"master", // control linedef
@@ -185,6 +207,47 @@ static const char *const ffloor_opt[] = {
 	"alpha",
 	NULL};
 
+#ifdef ESLOPE
+enum slope_e {
+	slope_valid = 0,
+	slope_o,
+	slope_d,
+	slope_zdelta,
+	slope_normal,
+	slope_zangle,
+	slope_xydirection,
+	slope_sourceline,
+	slope_refpos,
+	slope_flags
+};
+
+static const char *const slope_opt[] = {
+	"valid",
+	"o",
+	"d",
+	"zdelta",
+	"normal",
+	"zangle",
+	"xydirection",
+	"sourceline",
+	"refpos",
+	"flags",
+	NULL};
+
+// shared by both vector2_t and vector3_t
+enum vector_e {
+	vector_x = 0,
+	vector_y,
+	vector_z
+};
+
+static const char *const vector_opt[] = {
+	"x",
+	"y",
+	"z",
+	NULL};
+#endif
+
 static const char *const array_opt[] ={"iterate",NULL};
 static const char *const valid_opt[] ={"valid",NULL};
 
@@ -399,6 +462,14 @@ static int sector_get(lua_State *L)
 		LUA_PushUserdata(L, sector->ffloors, META_FFLOOR);
 		lua_pushcclosure(L, sector_iterate, 2); // push lib_iterateFFloors and sector->ffloors as upvalues for the function
 		return 1;
+#ifdef ESLOPE
+	case sector_fslope: // f_slope
+		LUA_PushUserdata(L, sector->f_slope, META_SLOPE);
+		return 1;
+	case sector_cslope: // c_slope
+		LUA_PushUserdata(L, sector->c_slope, META_SLOPE);
+		return 1;
+#endif
 	}
 	return 0;
 }
@@ -421,6 +492,10 @@ static int sector_set(lua_State *L)
 	case sector_heightsec: // heightsec
 	case sector_camsec: // camsec
 	case sector_ffloors: // ffloors
+#ifdef ESLOPE
+	case sector_fslope: // f_slope
+	case sector_cslope: // c_slope
+#endif
 	default:
 		return luaL_error(L, "sector_t field " LUA_QS " cannot be set.", sector_opt[field]);
 	case sector_floorheight: { // floorheight
@@ -1055,6 +1130,14 @@ static int ffloor_get(lua_State *L)
 		lua_pushlstring(L, levelflat->name, 8);
 		return 1;
 	}
+#ifdef ESLOPE
+	case ffloor_tslope:
+		LUA_PushUserdata(L, *ffloor->t_slope, META_SLOPE);
+		return 1;
+	case ffloor_bslope:
+		LUA_PushUserdata(L, *ffloor->b_slope, META_SLOPE);
+		return 1;
+#endif
 	case ffloor_sector:
 		LUA_PushUserdata(L, &sectors[ffloor->secnum], META_SECTOR);
 		return 1;
@@ -1094,6 +1177,10 @@ static int ffloor_set(lua_State *L)
 	switch(field)
 	{
 	case ffloor_valid: // valid
+#ifdef ESLOPE
+	case ffloor_tslope: // t_slope
+	case ffloor_bslope: // b_slope
+#endif
 	case ffloor_sector: // sector
 	case ffloor_master: // master
 	case ffloor_target: // target
@@ -1154,6 +1241,181 @@ static int ffloor_set(lua_State *L)
 	return 0;
 }
 
+#ifdef ESLOPE
+static int slope_get(lua_State *L)
+{
+	pslope_t *slope = *((pslope_t **)luaL_checkudata(L, 1, META_SLOPE));
+	enum slope_e field = luaL_checkoption(L, 2, slope_opt[0], slope_opt);
+
+	if (!slope)
+	{
+		if (field == slope_valid) {
+			lua_pushboolean(L, 0);
+			return 1;
+		}
+		return luaL_error(L, "accessed pslope_t doesn't exist anymore.");
+	}
+
+	switch(field)
+	{
+	case slope_valid: // valid
+		lua_pushboolean(L, 1);
+		return 1;
+	case slope_o: // o
+		LUA_PushUserdata(L, &slope->o, META_VECTOR3);
+		return 1;
+	case slope_d: // d
+		LUA_PushUserdata(L, &slope->d, META_VECTOR2);
+		return 1;
+	case slope_zdelta: // zdelta
+		lua_pushfixed(L, slope->zdelta);
+		return 1;
+	case slope_normal: // normal
+		LUA_PushUserdata(L, &slope->normal, META_VECTOR3);
+		return 1;
+	case slope_zangle: // zangle
+		lua_pushangle(L, slope->zangle);
+		return 1;
+	case slope_xydirection: // xydirection
+		lua_pushangle(L, slope->xydirection);
+		return 1;
+	case slope_sourceline: // source linedef
+		LUA_PushUserdata(L, slope->sourceline, META_LINE);
+		return 1;
+	case slope_refpos: // refpos
+		lua_pushinteger(L, slope->refpos);
+		return 1;
+	case slope_flags: // flags
+		lua_pushinteger(L, slope->flags);
+		return 1;
+	}
+	return 0;
+}
+
+static int slope_set(lua_State *L)
+{
+	pslope_t *slope = *((pslope_t **)luaL_checkudata(L, 1, META_SLOPE));
+	enum slope_e field = luaL_checkoption(L, 2, slope_opt[0], slope_opt);
+
+	if (!slope)
+		return luaL_error(L, "accessed pslope_t doesn't exist anymore.");
+
+	if (hud_running)
+		return luaL_error(L, "Do not alter pslope_t in HUD rendering code!");
+
+	switch(field) // todo: reorganize this shit
+	{
+	case slope_valid: // valid
+	case slope_sourceline: // sourceline
+	case slope_d: // d
+	case slope_flags: // flags
+	case slope_normal: // normal
+	case slope_refpos: // refpos
+	default:
+		return luaL_error(L, "pslope_t field " LUA_QS " cannot be set.", slope_opt[field]);
+	case slope_o: { // o
+		luaL_checktype(L, 3, LUA_TTABLE);
+
+		lua_getfield(L, 3, "x");
+		if (lua_isnil(L, -1))
+		{
+			lua_pop(L, 1);
+			lua_rawgeti(L, 3, 1);
+		}
+		if (!lua_isnil(L, -1))
+			slope->o.x = luaL_checkfixed(L, -1);
+		else
+			slope->o.x = 0;
+		lua_pop(L, 1);
+
+		lua_getfield(L, 3, "y");
+		if (lua_isnil(L, -1))
+		{
+			lua_pop(L, 1);
+			lua_rawgeti(L, 3, 2);
+		}
+		if (!lua_isnil(L, -1))
+			slope->o.y = luaL_checkfixed(L, -1);
+		else
+			slope->o.y = 0;
+		lua_pop(L, 1);
+
+		lua_getfield(L, 3, "z");
+		if (lua_isnil(L, -1))
+		{
+			lua_pop(L, 1);
+			lua_rawgeti(L, 3, 3);
+		}
+		if (!lua_isnil(L, -1))
+			slope->o.z = luaL_checkfixed(L, -1);
+		else
+			slope->o.z = 0;
+		lua_pop(L, 1);
+		break;
+	}
+	case slope_zdelta: { // zdelta, this is temp until i figure out wtf to do
+		slope->zdelta = luaL_checkfixed(L, 3);
+		slope->zangle = R_PointToAngle2(0, 0, FRACUNIT, -slope->zdelta);
+		P_CalculateSlopeNormal(slope);
+		break;
+	}
+	case slope_zangle: { // zangle
+		angle_t zangle = luaL_checkangle(L, 3);
+		if (zangle == ANGLE_90 || zangle == ANGLE_270)
+			return luaL_error(L, "invalid zangle for slope!");
+		slope->zangle = zangle;
+		slope->zdelta = -FINETANGENT(((slope->zangle+ANGLE_90)>>ANGLETOFINESHIFT) & 4095);
+		P_CalculateSlopeNormal(slope);
+		break;
+	}
+	case slope_xydirection: // xydirection
+		slope->xydirection = luaL_checkangle(L, 3);
+		slope->d.x = -FINECOSINE((slope->xydirection>>ANGLETOFINESHIFT) & FINEMASK);
+		slope->d.y = -FINESINE((slope->xydirection>>ANGLETOFINESHIFT) & FINEMASK);
+		P_CalculateSlopeNormal(slope);
+		break;
+	}
+	return 0;
+}
+
+static int vector2_get(lua_State *L)
+{
+	vector2_t *vec = *((vector2_t **)luaL_checkudata(L, 1, META_VECTOR2));
+	enum vector_e field = luaL_checkoption(L, 2, vector_opt[0], vector_opt);
+
+	if (!vec)
+		return luaL_error(L, "accessed vector2_t doesn't exist anymore.");
+
+	switch(field)
+	{
+		case vector_x: lua_pushfixed(L, vec->x); return 1;
+		case vector_y: lua_pushfixed(L, vec->y); return 1;
+		default: break;
+	}
+
+	return 0;
+}
+
+static int vector3_get(lua_State *L)
+{
+	vector3_t *vec = *((vector3_t **)luaL_checkudata(L, 1, META_VECTOR3));
+	enum vector_e field = luaL_checkoption(L, 2, vector_opt[0], vector_opt);
+
+	if (!vec)
+		return luaL_error(L, "accessed vector3_t doesn't exist anymore.");
+
+	switch(field)
+	{
+		case vector_x: lua_pushfixed(L, vec->x); return 1;
+		case vector_y: lua_pushfixed(L, vec->y); return 1;
+		case vector_z: lua_pushfixed(L, vec->z); return 1;
+		default: break;
+	}
+
+	return 0;
+}
+#endif
+
 static int lib_getMapheaderinfo(lua_State *L)
 {
 	// i -> mapheaderinfo[i-1]
@@ -1336,6 +1598,26 @@ int LUA_MapLib(lua_State *L)
 		lua_setfield(L, -2, "__newindex");
 	lua_pop(L, 1);
 
+#ifdef ESLOPE
+	luaL_newmetatable(L, META_SLOPE);
+		lua_pushcfunction(L, slope_get);
+		lua_setfield(L, -2, "__index");
+
+		lua_pushcfunction(L, slope_set);
+		lua_setfield(L, -2, "__newindex");
+	lua_pop(L, 1);
+
+	luaL_newmetatable(L, META_VECTOR2);
+		lua_pushcfunction(L, vector2_get);
+		lua_setfield(L, -2, "__index");
+	lua_pop(L, 1);
+
+	luaL_newmetatable(L, META_VECTOR3);
+		lua_pushcfunction(L, vector3_get);
+		lua_setfield(L, -2, "__index");
+	lua_pop(L, 1);
+#endif
+
 	luaL_newmetatable(L, META_MAPHEADER);
 		lua_pushcfunction(L, mapheaderinfo_get);
 		lua_setfield(L, -2, "__index");
diff --git a/src/lua_mobjlib.c b/src/lua_mobjlib.c
index 814bb325..71bef8c7 100644
--- a/src/lua_mobjlib.c
+++ b/src/lua_mobjlib.c
@@ -81,6 +81,9 @@ enum mobj_e {
 	mobj_extravalue2,
 	mobj_cusval,
 	mobj_cvmem,
+#ifdef ESLOPE
+	mobj_standingslope,
+#endif
 	mobj_colorized
 };
 
@@ -141,6 +144,9 @@ static const char *const mobj_opt[] = {
 	"extravalue2",
 	"cusval",
 	"cvmem",
+#ifdef ESLOPE
+	"standingslope",
+#endif
 	"colorized",
 	NULL};
 
@@ -345,6 +351,11 @@ static int mobj_get(lua_State *L)
 	case mobj_cvmem:
 		lua_pushinteger(L, mo->cvmem);
 		break;
+#ifdef ESLOPE
+	case mobj_standingslope:
+		LUA_PushUserdata(L, mo->standingslope, META_SLOPE);
+		break;
+#endif
 	case mobj_colorized:
 		lua_pushboolean(L, mo->colorized);
 		break;
@@ -655,6 +666,10 @@ static int mobj_set(lua_State *L)
 	case mobj_cvmem:
 		mo->cvmem = luaL_checkinteger(L, 3);
 		break;
+#ifdef ESLOPE
+	case mobj_standingslope:
+		return NOSET;
+#endif
 	case mobj_colorized:
 		mo->colorized = luaL_checkboolean(L, 3);
 		break;
diff --git a/src/lua_script.c b/src/lua_script.c
index b8b37c0e..0f5c64a5 100644
--- a/src/lua_script.c
+++ b/src/lua_script.c
@@ -22,6 +22,9 @@
 #include "byteptr.h"
 #include "p_saveg.h"
 #include "p_local.h"
+#ifdef ESLOPE
+#include "p_slopes.h" // for P_SlopeById
+#endif
 #ifdef LUA_ALLOW_BYTECODE
 #include "d_netfil.h" // for LUA_DumpFile
 #endif
@@ -458,6 +461,9 @@ enum
 	ARCH_SIDE,
 	ARCH_SUBSECTOR,
 	ARCH_SECTOR,
+#ifdef ESLOPE
+	ARCH_SLOPE,
+#endif
 	ARCH_MAPHEADER,
 
 	ARCH_TEND=0xFF,
@@ -477,6 +483,9 @@ static const struct {
 	{META_SIDE,     ARCH_SIDE},
 	{META_SUBSECTOR,ARCH_SUBSECTOR},
 	{META_SECTOR,   ARCH_SECTOR},
+#ifdef ESLOPE
+	{META_SLOPE,    ARCH_SLOPE},
+#endif
 	{META_MAPHEADER,   ARCH_MAPHEADER},
 	{NULL,          ARCH_NULL}
 };
@@ -681,6 +690,19 @@ static UINT8 ArchiveValue(int TABLESINDEX, int myindex)
 			}
 			break;
 		}
+#ifdef ESLOPE
+		case ARCH_SLOPE:
+		{
+			pslope_t *slope = *((pslope_t **)lua_touserdata(gL, myindex));
+			if (!slope)
+				WRITEUINT8(save_p, ARCH_NULL);
+			else {
+				WRITEUINT8(save_p, ARCH_SLOPE);
+				WRITEUINT16(save_p, slope->id);
+			}
+			break;
+		}
+#endif
 		case ARCH_MAPHEADER:
 		{
 			mapheader_t *header = *((mapheader_t **)lua_touserdata(gL, myindex));
@@ -885,6 +907,11 @@ static UINT8 UnArchiveValue(int TABLESINDEX)
 	case ARCH_SECTOR:
 		LUA_PushUserdata(gL, &sectors[READUINT16(save_p)], META_SECTOR);
 		break;
+#ifdef ESLOPE
+	case ARCH_SLOPE:
+		LUA_PushUserdata(gL, P_SlopeById(READUINT16(save_p)), META_SLOPE);
+		break;
+#endif
 	case ARCH_MAPHEADER:
 		LUA_PushUserdata(gL, mapheaderinfo[READUINT16(save_p)], META_MAPHEADER);
 		break;
diff --git a/src/p_slopes.c b/src/p_slopes.c
index 35d4c423..9513cac0 100644
--- a/src/p_slopes.c
+++ b/src/p_slopes.c
@@ -29,7 +29,7 @@ static pslope_t *slopelist = NULL;
 static UINT16 slopecount = 0;
 
 // Calculate line normal
-static void P_CalculateSlopeNormal(pslope_t *slope) {
+void P_CalculateSlopeNormal(pslope_t *slope) {
 	slope->normal.z = FINECOSINE(slope->zangle>>ANGLETOFINESHIFT);
 	slope->normal.x = -FixedMul(FINESINE(slope->zangle>>ANGLETOFINESHIFT), slope->d.x);
 	slope->normal.y = -FixedMul(FINESINE(slope->zangle>>ANGLETOFINESHIFT), slope->d.y);
diff --git a/src/p_slopes.h b/src/p_slopes.h
index de38f1d9..2ff77505 100644
--- a/src/p_slopes.h
+++ b/src/p_slopes.h
@@ -14,6 +14,7 @@
 #define P_SLOPES_H__
 
 #ifdef ESLOPE
+void P_CalculateSlopeNormal(pslope_t *slope);
 void P_ResetDynamicSlopes(void);
 void P_RunDynamicSlopes(void);
 // P_SpawnSlope_Line