Improved walking system.

Screeps/Structure.js

@@ -0,0 +1,21 @@
+const spawnClass = require("StructureSpawnClass");
+
+module.exports = {
+	setup() {
+		spawnClass.setup();
+	},
+
+	begin(structure){
+		switch (structure.structureType) {
+			case STRUCTURE_SPAWN: structure.begin(); break;
+			default: break;
+		}
+	},
+
+	tick(structure){
+		switch (structure.structureType) {
+			case STRUCTURE_SPAWN: structure.tick(); break;
+			default: break;
+		}
+	}
+}