diff --git a/Source/monster.cpp b/Source/monster.cpp
index d5256ec14..c88700a1b 100644
--- a/Source/monster.cpp
+++ b/Source/monster.cpp
@@ -624,7 +624,7 @@ bool MonstPlace(int xp, int yp)
 		return false;
 	}
 
-	return !SolidLoc(xp, yp);
+	return !SolidLoc({ xp, yp });
 }
 
 void monster_some_crypt()
@@ -1140,7 +1140,7 @@ void InitMonsters()
 		na = 0;
 		for (s = 16; s < 96; s++) {
 			for (t = 16; t < 96; t++) {
-				if (!SolidLoc(s, t))
+				if (!SolidLoc({ s, t }))
 					na++;
 			}
 		}
@@ -1244,7 +1244,7 @@ void monster_43C785(int i)
 	if (monster[i].MType) {
 		for (d = 0; d < 8; d++) {
 			position = monster[i].position.tile + monster[i]._mdir;
-			if (!SolidLoc(position.x, position.y)) {
+			if (!SolidLoc(position)) {
 				if (dPlayer[position.x][position.y] == 0 && dMonster[position.x][position.y] == 0) {
 					if (dObject[position.x][position.y] == 0)
 						break;
@@ -4697,20 +4697,21 @@ bool DirOK(int i, Direction mdir)
 	int mcount, mi;
 
 	commitment((DWORD)i < MAXMONSTERS, i);
-	Point futurePosition = monster[i].position.tile + mdir;
+	Point position = monster[i].position.tile;
+	Point futurePosition = position + mdir;
 	if (futurePosition.y < 0 || futurePosition.y >= MAXDUNY || futurePosition.x < 0 || futurePosition.x >= MAXDUNX || !PosOkMonst(i, futurePosition.x, futurePosition.y))
 		return false;
 	if (mdir == DIR_E) {
-		if (SolidLoc(futurePosition.x, futurePosition.y + 1) || dFlags[futurePosition.x][futurePosition.y + 1] & BFLAG_MONSTLR)
+		if (SolidLoc(position + DIR_SE) || dFlags[position.x + 1][position.y] & BFLAG_MONSTLR)
 			return false;
 	} else if (mdir == DIR_W) {
-		if (SolidLoc(futurePosition.x + 1, futurePosition.y) || dFlags[futurePosition.x + 1][futurePosition.y] & BFLAG_MONSTLR)
+		if (SolidLoc(position + DIR_SW) || dFlags[position.x][position.y + 1] & BFLAG_MONSTLR)
 			return false;
 	} else if (mdir == DIR_N) {
-		if (SolidLoc(futurePosition.x + 1, futurePosition.y) || SolidLoc(futurePosition.x, futurePosition.y + 1))
+		if (SolidLoc(position + DIR_NE) || SolidLoc(position + DIR_NW))
 			return false;
 	} else if (mdir == DIR_S)
-		if (SolidLoc(futurePosition.x - 1, futurePosition.y) || SolidLoc(futurePosition.x, futurePosition.y - 1))
+		if (SolidLoc(position + DIR_SW) || SolidLoc(position + DIR_SE))
 			return false;
 	if (monster[i].leaderflag == 1) {
 		if (abs(futurePosition.x - monster[monster[i].leader].position.future.x) >= 4
@@ -5143,7 +5144,7 @@ bool PosOkMonst(int i, int x, int y)
 	int oi;
 	bool ret;
 
-	ret = !SolidLoc(x, y) && dPlayer[x][y] == 0 && dMonster[x][y] == 0;
+	ret = !SolidLoc({ x, y }) && dPlayer[x][y] == 0 && dMonster[x][y] == 0;
 	if (ret && dObject[x][y] != 0) {
 		oi = dObject[x][y] > 0 ? dObject[x][y] - 1 : -(dObject[x][y] + 1);
 		if (object[oi]._oSolidFlag)
@@ -5200,7 +5201,7 @@ bool PosOkMonst2(int i, int x, int y)
 	int oi;
 	bool ret;
 
-	ret = !SolidLoc(x, y);
+	ret = !SolidLoc({ x, y });
 	if (ret && dObject[x][y] != 0) {
 		oi = dObject[x][y] > 0 ? dObject[x][y] - 1 : -(dObject[x][y] + 1);
 		if (object[oi]._oSolidFlag)
@@ -5231,7 +5232,7 @@ bool PosOkMonst3(int i, int x, int y)
 		}
 	}
 	if (ret) {
-		ret = (!SolidLoc(x, y) || isdoor) && dPlayer[x][y] == 0 && dMonster[x][y] == 0;
+		ret = (!SolidLoc({ x, y }) || isdoor) && dPlayer[x][y] == 0 && dMonster[x][y] == 0;
 	}
 	if (ret)
 		ret = monster_posok(i, x, y);
diff --git a/Source/player.cpp b/Source/player.cpp
index 5bf33c398..6002fedce 100644
--- a/Source/player.cpp
+++ b/Source/player.cpp
@@ -1120,13 +1120,13 @@ void InitMultiView()
 	ViewY = myPlayer.position.tile.y;
 }
 
-bool SolidLoc(int x, int y)
+bool SolidLoc(Point position)
 {
-	if (x < 0 || y < 0 || x >= MAXDUNX || y >= MAXDUNY) {
+	if (position.x < 0 || position.y < 0 || position.x >= MAXDUNX || position.y >= MAXDUNY) {
 		return false;
 	}
 
-	return nSolidTable[dPiece[x][y]];
+	return nSolidTable[dPiece[position.x][position.y]];
 }
 
 bool PlrDirOK(int pnum, Direction dir)
@@ -1138,18 +1138,19 @@ bool PlrDirOK(int pnum, Direction dir)
 	}
 	auto &player = plr[pnum];
 
-	Point position = player.position.tile + dir;
-	if (position.x < 0 || !dPiece[position.x][position.y] || !PosOkPlayer(pnum, position.x, position.y)) {
+	Point position = player.position.tile;
+	Point futurePosition = position + dir;
+	if (futurePosition.x < 0 || !dPiece[futurePosition.x][futurePosition.y] || !PosOkPlayer(pnum, futurePosition.x, futurePosition.y)) {
 		return false;
 	}
 
 	isOk = true;
 	if (dir == DIR_E) {
-		isOk = !SolidLoc(position.x, position.y + 1) && !(dFlags[position.x][position.y + 1] & BFLAG_PLAYERLR);
+		isOk = !SolidLoc(position + DIR_SE) && !(dFlags[position.x + 1][position.y] & BFLAG_PLAYERLR);
 	}
 
 	if (isOk && dir == DIR_W) {
-		isOk = !SolidLoc(position.x + 1, position.y) && !(dFlags[position.x + 1][position.y] & BFLAG_PLAYERLR);
+		isOk = !SolidLoc(position + DIR_SW) && !(dFlags[position.x][position.y + 1] & BFLAG_PLAYERLR);
 	}
 
 	return isOk;
@@ -3510,7 +3511,7 @@ bool PosOkPlayer(int pnum, int x, int y)
 		return false;
 	if (dPiece[x][y] == 0)
 		return false;
-	if (SolidLoc(x, y))
+	if (SolidLoc({ x, y }))
 		return false;
 	if (dPlayer[x][y] != 0) {
 		if (dPlayer[x][y] > 0) {
diff --git a/Source/player.h b/Source/player.h
index 755b010e9..ccbb568dd 100644
--- a/Source/player.h
+++ b/Source/player.h
@@ -428,7 +428,7 @@ void AddPlrMonstExper(int lvl, int exp, char pmask);
 void ApplyPlrDamage(int pnum, int dam, int minHP = 0, int frac = 0, int earflag = 0);
 void InitPlayer(int pnum, bool FirstTime);
 void InitMultiView();
-bool SolidLoc(int x, int y);
+bool SolidLoc(Point position);
 void PlrClrTrans(Point position);
 void PlrDoTrans(Point position);
 void SetPlayerOld(PlayerStruct &player);