path: root/src/SMAPI/Framework/SGame.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using StardewModdingAPI.Events;
using StardewModdingAPI.Framework.Input;
using StardewModdingAPI.Framework.Reflection;
using StardewModdingAPI.Framework.Utilities;
using StardewValley;
using StardewValley.BellsAndWhistles;
using StardewValley.Locations;
using StardewValley.Menus;
using StardewValley.Tools;
using xTile.Dimensions;
using xTile.Layers;

namespace StardewModdingAPI.Framework
{
    /// <summary>SMAPI's extension of the game's core <see cref="Game1"/>, used to inject events.</summary>
    internal class SGame : Game1
    {
        /*********
        ** Properties
        *********/
        /****
        ** SMAPI state
        ****/
        /// <summary>Encapsulates monitoring and logging.</summary>
        private readonly IMonitor Monitor;

        /// <summary>The maximum number of consecutive attempts SMAPI should make to recover from a draw error.</summary>
        private readonly Countdown DrawCrashTimer = new Countdown(60); // 60 ticks = roughly one second

        /// <summary>The maximum number of consecutive attempts SMAPI should make to recover from an update error.</summary>
        private readonly Countdown UpdateCrashTimer = new Countdown(60); // 60 ticks = roughly one second

        /// <summary>The number of ticks until SMAPI should notify mods that the game has loaded.</summary>
        /// <remarks>Skipping a few frames ensures the game finishes initialising the world before mods try to change it.</remarks>
        private int AfterLoadTimer = 5;

        /// <summary>Whether the game is returning to the menu.</summary>
        private bool IsExitingToTitle;

        /// <summary>Whether the game is saving and SMAPI has already raised <see cref="SaveEvents.BeforeSave"/>.</summary>
        private bool IsBetweenSaveEvents;

        /// <summary>Whether the game is creating the save file and SMAPI has already raised <see cref="SaveEvents.BeforeCreate"/>.</summary>
        private bool IsBetweenCreateEvents;

        /****
        ** Game state
        ****/
        /// <summary>The player input as of the previous tick.</summary>
        private InputState PreviousInput = new InputState();

        /// <summary>The window size value at last check.</summary>
        private Point PreviousWindowSize;

        /// <summary>The save ID at last check.</summary>
        private ulong PreviousSaveID;

        /// <summary>A hash of <see cref="Game1.locations"/> at last check.</summary>
        private int PreviousGameLocations;

        /// <summary>A hash of the current location's <see cref="GameLocation.objects"/> at last check.</summary>
        private int PreviousLocationObjects;

        /// <summary>The player's inventory at last check.</summary>
        private IDictionary<Item,