// To initiate the adventure
private async void Start_Clicked(object sender, EventArgs e)
{
Start.IsEnabled = false; // disable the button to avoid multiple clicks.
actIndicator.IsRunning = true;
await App.isNetworkAccess();
if (adventure.waypointID == null) // handle error when no starting waypoint found
{
actIndicator.IsRunning = false;
await DisplayAlert("Error", "Could not find the stating waypoint! This adventure is current unavailable or under development.", "Cancel");
Start.IsEnabled = true; // enable the button.
return;
}
session = await SessionLogic.GetSession(App.myTeam.teamID, adventure.adventureID);
if (session == null) //this is the first time the team is playing this adventure
{
await SessionLogic.PostSession(adventure); //create a new session for this adventure and team
session = await SessionLogic.GetSession(App.myTeam.teamID, adventure.adventureID);
}
else
{
actIndicator.IsRunning = false;
bool sng = await DisplayAlert("Warning", "Starting new game will cause your past save of this adventure be removed!", "Start new game", "Cancel");
if (sng == true)
{
actIndicator.IsRunning = true;
//Reset game state
await SessionLogic.PutSession(App.myTeam.teamID, adventure.adventureID, adventure.waypointID.Value);
session = await SessionLogic.GetSession(App.myTeam.teamID, adventure.adventureID);
}
else
{
Start.IsEnabled = true; // enable the button.
return;
}
}
Waypoint wp = await WaypointLogic.GetWaypoint(session.WaypointID);
App.atWaypointID = session.WaypointID;
App.atAdventureID = session.AdventureID;
App.reachableWaypoints = await AdventureMapLogic.GetAdventureMap(App.atWaypointID);
App.getLocation();
actIndicator.IsRunning = false;
Start.IsEnabled = true; // enable the button.
await Navigation.PushAsync(new StoryPage(adventure.title, wp));
}
// To support movement between waypoint, it will check whether the players are allowed to move to the next waypoint or not
async void OnWaypointAlertClick(object sender, EventArgs e)
{
continue_btn.IsEnabled = false; // disable the button to avoid multiple clicks.
actIndicator.IsRunning = true;
await App.isNetworkAccess();
if (isCompleted == false) // requests to finished challenge before move to the next waypoint
{
actIndicator.IsRunning = false;
await DisplayAlert("Failed", "You have not completed the challenge yet. Try again!", "Ok");
continue_btn.IsEnabled = true; // enable the button.
return;
}
if (isEndpoint == true) // handles the last waypoint completed.
{
actIndicator.IsRunning = false;
await DisplayAlert("Congratulation", "You have completed '" + adventureTitle + "'!", "Ok");
continue_btn.Text = "Completed";
continue_btn.IsEnabled = false;
return;
}
await App.getLocation(); // the main method to compare location
Waypoint wp = await WaypointLogic.GetWaypoint(App.atWaypointID);
bool reached = false;
foreach (Waypoint w in App.reachableWaypoints)
{
if (w.WaypointId == wp.WaypointId)
{
reached = true;
}
}
if (reached == false) // alerts if not reached a new waypoint yet
{
actIndicator.IsRunning = false;
await DisplayAlert("Failed", "You have not reached a new story point yet. Keep searching!", "Ok");
continue_btn.IsEnabled = true; // enable the button.
return;
}
//Save new state
await SessionLogic.PutSession(App.myTeam.teamID, App.atAdventureID, App.atWaypointID);
// opens new Story page with the content of the next waypoint
App.reachableWaypoints = await AdventureMapLogic.GetAdventureMap(App.atWaypointID);
actIndicator.IsRunning = false;
continue_btn.IsEnabled = true; // enable the button.
await Navigation.PushAsync(new StoryPage(adventureTitle, wp));
}