diff --git a/binaries/data/mods/public/maps/random/ardennes_forest.js b/binaries/data/mods/public/maps/random/ardennes_forest.js
index d0558136a3..86446c0cc5 100644
--- a/binaries/data/mods/public/maps/random/ardennes_forest.js
+++ b/binaries/data/mods/public/maps/random/ardennes_forest.js
@@ -362,8 +362,8 @@ for (var ix = 0; ix < mapSize; ix++)
 			explorableArea.points.push(pt);
 		}
 
-		if (h > 35 && g_Map.validT(ix, iz) && randBool(0.1) ||
-		    h < 15 && g_Map.validT(ix, iz) && randBool(0.05) && hillDecoClass.countMembersInRadius(ix, iz, 1) == 0)
+		if (h > 35 && randBool(0.1) ||
+		    h < 15 && randBool(0.05) && hillDecoClass.countMembersInRadius(ix, iz, 1) == 0)
 			placeObject(ix + randFloat(0, 1), iz + randFloat(0, 1), pickRandom(aTrees), 0, randFloat(0, 2 * PI));
 	}
 }
diff --git a/binaries/data/mods/public/maps/random/rmgen/library.js b/binaries/data/mods/public/maps/random/rmgen/library.js
index 3a2b0ef420..a9a0d42802 100644
--- a/binaries/data/mods/public/maps/random/rmgen/library.js
+++ b/binaries/data/mods/public/maps/random/rmgen/library.js
@@ -226,7 +226,7 @@ function createObjectGroups(placer, player, constraint, amount, retryFactor = 10
 		"placer": placer,
 		"player": player,
 		"constraint": constraint,
-		"halfMapSize": g_Map.size / 2 - 3
+		"halfMapSize": getMapSize() / 2 - MAP_BORDER_WIDTH
 	};
 
 	return retryPlacing(placeFunc, args, retryFactor, amount, false, behaveDeprecated);
@@ -280,7 +280,7 @@ function createSimpleTerrain(terrain)
 
 function placeObject(x, z, type, player, angle)
 {
-	if (g_Map.validT(x, z, MAP_BORDER_WIDTH))
+	if (g_Map.validT(x, z))
 		g_Map.addObject(new Entity(type, player, x, z, angle));
 }
 
diff --git a/binaries/data/mods/public/maps/random/rmgen/map.js b/binaries/data/mods/public/maps/random/rmgen/map.js
index 1b6b77069f..91956ec3bb 100644
--- a/binaries/data/mods/public/maps/random/rmgen/map.js
+++ b/binaries/data/mods/public/maps/random/rmgen/map.js
@@ -86,6 +86,8 @@ Map.prototype.getEntityID = function()
 // Check bounds on tile map
 Map.prototype.validT = function(x, z, distance = 0)
 {
+	distance += MAP_BORDER_WIDTH;
+
 	if (g_MapSettings.CircularMap)
 	{
 		let halfSize = Math.floor(this.size / 2);
@@ -159,7 +161,7 @@ Map.prototype.getTerrainObjects = function(x, z)
 
 Map.prototype.setTerrainObject = function(x, z, object)
 {
-	if (!this.validT(x, z, 2))
+	if (!this.validT(x, z))
 		throw "setTerrainObject: invalid tile position (" + x + ", " + z + ")";
 
 	this.terrainObjects[x][z] = object;
diff --git a/binaries/data/mods/public/maps/random/rmgen/placer.js b/binaries/data/mods/public/maps/random/rmgen/placer.js
index fb68d19754..17ac525ec8 100644
--- a/binaries/data/mods/public/maps/random/rmgen/placer.js
+++ b/binaries/data/mods/public/maps/random/rmgen/placer.js
@@ -523,7 +523,7 @@ SimpleGroup.prototype.place = function(player, constraint)
 	// Add placed objects to map
 	for (let obj of resultObjs)
 	{
-		if (g_Map.validT(obj.position.x / CELL_SIZE, obj.position.z / CELL_SIZE, MAP_BORDER_WIDTH))
+		if (g_Map.validT(obj.position.x / CELL_SIZE, obj.position.z / CELL_SIZE))
 			g_Map.addObject(obj);
 
 		// Convert position to integer number of tiles
diff --git a/binaries/data/mods/public/maps/random/rmgen/terrain.js b/binaries/data/mods/public/maps/random/rmgen/terrain.js
index 5b13dc6a31..6fd83e7030 100644
--- a/binaries/data/mods/public/maps/random/rmgen/terrain.js
+++ b/binaries/data/mods/public/maps/random/rmgen/terrain.js
@@ -41,7 +41,7 @@ SimpleTerrain.prototype = new Terrain();
 SimpleTerrain.prototype.constructor = SimpleTerrain;
 SimpleTerrain.prototype.placeNew = function(x, z)
 {
-	if (this.treeType !== undefined && g_Map.validT(round(x), round(z), MAP_BORDER_WIDTH))
+	if (this.treeType !== undefined && g_Map.validT(Math.round(x), Math.round(z)))
 		g_Map.terrainObjects[x][z] = new Entity(this.treeType, 0, x + 0.5, z + 0.5, randFloat(0, 2 * PI));
 
 	g_Map.texture[x][z] = g_Map.getTextureID(this.texture);
diff --git a/binaries/data/mods/public/maps/random/rmgen2/gaia.js b/binaries/data/mods/public/maps/random/rmgen2/gaia.js
index 16eb6306d8..4e3a3b212d 100644
--- a/binaries/data/mods/public/maps/random/rmgen2/gaia.js
+++ b/binaries/data/mods/public/maps/random/rmgen2/gaia.js
@@ -875,7 +875,7 @@ function addStragglerTrees(constraint, size, deviation, fill)
 	var trees = [g_Gaia.tree1, g_Gaia.tree2, g_Gaia.tree3, g_Gaia.tree4];
 
 	var treesPerPlayer = 40;
-	var playerBonus = Math.max(1, (getNumPlayers() - 3) / 2);
+	var playerBonus = Math.max(1, (getNumPlayers() - MAP_BORDER_WIDTH) / 2);
 
 	var offset = getRandomDeviation(size, deviation);
 	var treeCount = treesPerPlayer * playerBonus * fill;
@@ -1170,7 +1170,7 @@ function smoothElevation(x, z)
 		{
 			var thisX = x + xOffset;
 			var thisZ = z + zOffset;
-			if (!g_Map.validT(thisX, thisZ))
+			if (!g_Map.validH(thisX, thisZ))
 				continue;
 
 			var height = g_Map.getHeight(thisX, thisZ);
diff --git a/binaries/data/mods/public/maps/random/unknown_nomad.js b/binaries/data/mods/public/maps/random/unknown_nomad.js
index ad26bfcb43..19fd6db3d7 100644
--- a/binaries/data/mods/public/maps/random/unknown_nomad.js
+++ b/binaries/data/mods/public/maps/random/unknown_nomad.js
@@ -1069,7 +1069,7 @@ for (var i = 0; i < numPlayers; i++)
 	{
 		for (var mz = 0; mz < mapSize; mz++)
 		{
-			if (!g_Map.validT(mx, mz, 6))
+			if (!g_Map.validT(mx, mz, 3))
 				continue;
 
 			var placable = true;
@@ -1090,7 +1090,7 @@ for (var i = 0; i < numPlayers; i++)
 		{
 			for (var mz = 0; mz < mapSize; mz++)
 			{
-				if (!g_Map.validT(mx, mz, 6))
+				if (!g_Map.validT(mx, mz, 3))
 					continue;
 
 				var placable = true;