private static void generateScenery(
String mapId, int x, int y, int nx, int ny, DatastoreService store) {
if (x != nx && y != ny && x != y) { // Clear the diagonal line for escape
Entity obstacle = new Entity(Transport.SCENERY);
obstacle.setProperty("x", x);
obstacle.setProperty("y", y);
obstacle.setProperty("map", mapId);
store.put(obstacle);
}
}
private static Entity ensurePlayerExists(String username, DatastoreService store) {
Query q =
new Query(Transport.PLAYER)
.setFilter(new Query.FilterPredicate("identity", Query.FilterOperator.EQUAL, username));
Entity player = store.prepare(q).asSingleEntity();
if (player == null) {
Long x = 10l;
Long y = 10l;
player = new Entity(Transport.PLAYER);
player.setProperty("identity", username);
player.setProperty("speed", 4);
PointSet points = new PointSet(20, 20);
points.add(new Transport.Point(x, y));
player.setProperty("path", new Gson().toJson(new Transport.Points(points)));
store.put(player);
QueueFactory.getDefaultQueue().add(withUrl("/tick").param("identity", username));
}
return player;
}
private static Entity ensureMapExists(Entity player, DatastoreService store) {
Query mq = new Query(Transport.MAP);
Entity map = store.prepare(mq).asSingleEntity();
Random rand = new Random();
if (map == null) {
map = new Entity(Transport.MAP);
String mapId = "sandbox";
int width = 20;
int height = 20;
map.setProperty("width", width);
map.setProperty("height", height);
map.setProperty("identity", mapId);
store.put(map);
for (int j = 0; j < 8; j++) {
int sx = width / 2;
int sy = height / 2;
for (int i = 0; i < 100; i++) {
switch (rand.nextInt(4)) {
case 0:
sx++;
break;
case 1:
sy++;
break;
case 2:
sx--;
break;
case 3:
sy--;
break;
}
generateScenery(mapId, sx, sy, 10, 10, store);
}
}
player.setProperty("map", mapId);
store.put(player);
}
return map;
}