update

game_endlessrun/Sources/lnx/SceneBuilder.hx

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+package lnx;
+
+class SceneBuilder extends iron.Trait {
+
+	var dist = 0.0;
+	var tileNum = 0;
+	var tilesVisible = 14;
+	var tiles:Array<iron.object.Object> = [];
+	var empty:iron.object.Object;
+
+	function spawnTile(num:Int) {
+		iron.Scene.active.spawnObject("Tile" + Std.random(2), null, function(o) {
+
+			// Remove old tile
+			if (tiles[num % tilesVisible] != null) {
+				tiles[num % tilesVisible].remove();
+			}
+
+			// Spawn new tile
+			tiles[num % tilesVisible] = o;
+			o.transform.loc.x = 0;
+			o.transform.loc.y = num * 4.0;
+			o.transform.buildMatrix();
+
+			// Spawn gem
+			if (Std.random(3) == 0) {
+				iron.Scene.active.spawnObject("Gem", o, function(go) {
+					go.transform.loc.x = (Math.random() - 0.5) * 1.8;
+					go.transform.loc.z = 0.2;
+					go.transform.buildMatrix();
+				});
+			}
+		});
+	}
+
+	public function new() {
+		super();
+
+		notifyOnUpdate(function() {
+			if (empty == null) empty = iron.Scene.active.getChild("Empty");
+
+			// Spawn new tiles
+			while (tileNum < Std.int(dist / 4 + 13)) spawnTile(tileNum++);
+
+			// Travel forward
+			dist += 0.1;
+			empty.transform.loc.y = dist;
+			empty.transform.buildMatrix();
+		});
+	}
+}