diff --git a/Toy b/Toy
index c5c0122..efc1e76 160000
--- a/Toy
+++ b/Toy
@@ -1 +1 @@
-Subproject commit c5c01222437ca24556c3dd2181221b2ce5c7ded9
+Subproject commit efc1e764d28b35552e8b2a6752ea012e325340b8
diff --git a/assets/scripts/tilemap/layer-background.toy b/assets/scripts/tilemap/layer-background.toy
index 1a4cd20..ca4e38d 100644
--- a/assets/scripts/tilemap/layer-background.toy
+++ b/assets/scripts/tilemap/layer-background.toy
@@ -5,14 +5,14 @@ import node;
 var childCounter: int = 0;
 
 //TODO: reference these from a global source (root?)
-var tileWidth: int const = 100;
-var tileHeight: int const = 100;
+var tileWidth: int const = 64;
+var tileHeight: int const = 64;
 
 var roomWidth: int const = 10;
 var roomHeight: int const = 10;
 
-var levelXCount: int const = 4;
-var levelYCount: int const = 4;
+var levelXCount: int const = 9;
+var levelYCount: int const = 9;
 
 
 //util to generate and init a child node of a given parent
@@ -40,15 +40,15 @@ fn drawLayer(node: opaque, camX, camY, camW, camH, depth) {
 	//calc the modifier ratio to offset things
 	var mod: float = float tileWidth / (tileWidth - depth);
 	
-	var tileWidth_mod: int = round(tileWidth * mod);
-	var tileHeight_mod: int = round(tileHeight * mod);
-	var camX_mod: int = round((camX - camW) * mod + camW / 2);
-	var camY_mod: int = round((camY - camH) * mod + camH / 2);
+	var tileWidth_mod: float = tileWidth * mod;
+	var tileHeight_mod: float = tileHeight * mod;
+	var camX_mod: float = (camX - camW) * mod + camW/2;
+	var camY_mod: float = (camY - camH) * mod + camH/2;
 
 	//calc the region to render
-	var lowerX: int = round((camX - camW/2) / tileWidth);
+	var lowerX: int = round((camX - camW/2.0) / tileWidth);
 	var upperX: int = round((camX - camW*1.5) / tileWidth);
-	var lowerY: int = round((camY - camH/2) / tileHeight);
+	var lowerY: int = round((camY - camH/2.0) / tileHeight);
 	var upperY: int = round((camY - camH*1.5) / tileHeight);
 
 	//bounds check
@@ -60,7 +60,7 @@ fn drawLayer(node: opaque, camX, camY, camW, camH, depth) {
 	//render each tile
 	for (var j = lowerY; j <= upperY; j++) {
 		for (var i = lowerX; i <= upperX; i++) {
-			node.getChildNode(0).drawNode(round(camX_mod + i * tileWidth_mod), round(camY_mod + j * tileHeight_mod), tileWidth_mod, tileHeight_mod);
+			node.getChildNode(0).drawNode(round(camX_mod + i * tileWidth_mod), round(camY_mod + j * tileHeight_mod), round(tileWidth_mod), round(tileHeight_mod));
 		}
 	}
 }
diff --git a/assets/scripts/tilemap/layer-walls.toy b/assets/scripts/tilemap/layer-walls.toy
index 4e5af7f..d11dff7 100644
--- a/assets/scripts/tilemap/layer-walls.toy
+++ b/assets/scripts/tilemap/layer-walls.toy
@@ -5,14 +5,14 @@ import node;
 var childCounter: int = 0;
 
 //TODO: reference these from a global source (root?)
-var tileWidth: int const = 100;
-var tileHeight: int const = 100;
+var tileWidth: int const = 64;
+var tileHeight: int const = 64;
 
 var roomWidth: int const = 10;
 var roomHeight: int const = 10;
 
-var levelXCount: int const = 4;
-var levelYCount: int const = 4;
+var levelXCount: int const = 9;
+var levelYCount: int const = 9;
 
 
 //util to generate and init a child node of a given parent
@@ -42,13 +42,13 @@ fn drawLayer(node: opaque, camX, camY, camW, camH, depth) {
 	
 	var tileWidth_mod: int = round(tileWidth * mod);
 	var tileHeight_mod: int = round(tileHeight * mod);
-	var camX_mod: int = round((camX - camW) * mod + camW / 2);
-	var camY_mod: int = round((camY - camH) * mod + camH / 2);
+	var camX_mod: int = round((camX - camW) * mod + camW/2);
+	var camY_mod: int = round((camY - camH) * mod + camH/2);
 
 	//calc the region to render
-	var lowerX: int = round((camX - camW/2) / tileWidth);
+	var lowerX: int = round((camX - camW/2.0) / tileWidth);
 	var upperX: int = round((camX - camW*1.5) / tileWidth);
-	var lowerY: int = round((camY - camH/2) / tileHeight);
+	var lowerY: int = round((camY - camH/2.0) / tileHeight);
 	var upperY: int = round((camY - camH*1.5) / tileHeight);
 
 	//bounds check
@@ -64,7 +64,7 @@ fn drawLayer(node: opaque, camX, camY, camW, camH, depth) {
 				continue;
 			}
 
-			node.getChildNode(0).drawNode(round(camX_mod + i * tileWidth_mod), round(camY_mod + j * tileHeight_mod), tileWidth_mod, tileHeight_mod);
+			node.getChildNode(0).drawNode(camX_mod + i * tileWidth_mod, camY_mod + j * tileHeight_mod, tileWidth_mod, tileHeight_mod);
 		}
 	}
 }
diff --git a/assets/scripts/tilemap/tilemap.toy b/assets/scripts/tilemap/tilemap.toy
index 30f69ed..f81e7c0 100644
--- a/assets/scripts/tilemap/tilemap.toy
+++ b/assets/scripts/tilemap/tilemap.toy
@@ -9,14 +9,14 @@ var camX: float = 0;
 var camY: float = 0;
 
 //TODO: reference these from a global source (root?)
-var tileWidth: int const = 100;
-var tileHeight: int const = 100;
+var tileWidth: int const = 64;
+var tileHeight: int const = 64;
 
 var roomWidth: int const = 10;
 var roomHeight: int const = 10;
 
-var levelXCount: int const = 4;
-var levelYCount: int const = 4;
+var levelXCount: int const = 9;
+var levelYCount: int const = 9;
 
 var screenWidth: int const = 1080;
 var screenHeight: int const = 720;
@@ -50,6 +50,6 @@ fn onDraw(node: opaque) {
 
 	//iterate over each layer, passing in the screen dimensions
 	for (var c = 0; c < childCounter; c++) {
-		node.getChildNode(c).callNodeFn("drawLayer", camX, camY, screenWidth, screenHeight, c * 2);
+		node.getChildNode(c).callNodeFn("drawLayer", camX, camY, screenWidth, screenHeight, c * 4.0);
 	}
 }
diff --git a/box/lib_standard.c b/box/lib_standard.c
index 2b2966d..4514446 100644
--- a/box/lib_standard.c
+++ b/box/lib_standard.c
@@ -349,8 +349,8 @@ static int nativeRound(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments
 	}
 	if (TOY_IS_FLOAT(selfLiteral)) {
 		//catch the already-rounded case
-		if (TOY_AS_FLOAT(selfLiteral) == 0) {
-			result = selfLiteral;
+		if (TOY_AS_FLOAT(selfLiteral) == (int)TOY_AS_FLOAT(selfLiteral)) {
+			result = TOY_TO_INTEGER_LITERAL((int)TOY_AS_FLOAT(selfLiteral));
 		}
 		else {
 			result = TOY_TO_INTEGER_LITERAL( TOY_AS_FLOAT(selfLiteral) - (int)TOY_AS_FLOAT(selfLiteral) < 0.5 ? (int)TOY_AS_FLOAT(selfLiteral) : (int)TOY_AS_FLOAT(selfLiteral) + 1 );