Moved the demo scripts into a directory

assets/scripts/demo/tilemap/tilemap.toy

@@ -0,0 +1,35 @@
+//this file manages the tilemap-related utilities
+import standard;
+import engine;
+import node;
+
+var camX: float = 0;
+var camY: float = 0;
+
+//util to generate a child node of a given parent
+fn loadChild(parent: opaque, fname: string) {
+	var child: opaque = loadNode(fname);
+	parent.pushNode(child);
+	return child;
+}
+
+fn loadLayer(node: opaque, layerName: string) {
+	//load the given layer as a child
+	var layerNode = node.loadChild("scripts:/demo/tilemap/" + layerName);
+}
+
+//lifecycle functions
+fn onStep(node: opaque) {
+	camX--;
+	camY--;
+}
+
+fn onDraw(node: opaque) {
+	var screenWidth: int const = getRootNode().callNodeFn("getScreenWidth");
+	var screenHeight: int const = getRootNode().callNodeFn("getScreenHeight");
+
+	//iterate over each layer, passing in the screen dimensions
+	for (var c = 0; c < node.getChildNodeCount(); c++) {
+		node.getChildNode(c).callNodeFn("drawLayer", camX, camY, screenWidth, screenHeight, c * 4.0);
+	}
+}