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fix mods running code concurrently with a SDV 1.2+ background task

This commit is contained in:
Jesse Plamondon-Willard 2017-03-03 17:13:33 -05:00
parent 6f07801b04
commit 5d32b98029
1 changed files with 17 additions and 1 deletions
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18
src/StardewModdingAPI/Framework/SGame.cs
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@ -305,6 +305,22 @@ namespace StardewModdingAPI.Framework
/// <param name="gameTime">A snapshot of the game timing state.</param>
protected override void Update(GameTime gameTime)
{
// While a background new-day task is in progress, the game skips its own update logic
// and defers to the XNA Update method. Running mod code in parallel to the background
// update is risky, because data changes can conflict (e.g. collection changed during
// enumeration errors) and data may change unexpectedly from one mod instruction to the
// next.
//
// Therefore we can just run Game1.Update here without raising any SMAPI events. There's
// a small chance that the task will finish after we defer but before the game checks,
// which means technically events should be raised, but the effects of missing one
// update tick are neglible and not worth the complications of bypassing Game1.Update.
if (SGame._newDayTask != null)
{
base.Update(gameTime);
return;
}
// raise game loaded
if (this.FirstUpdate)
GameEvents.InvokeGameLoaded(this.Monitor);
@ -361,7 +377,7 @@ namespace StardewModdingAPI.Framework
/// <summary>The method called to draw everything to the screen.</summary>
/// <param name="gameTime">A snapshot of the game timing state.</param>
/// <remarks>This implementation is identical to <see cref="Game1.Draw"/>, except for try..catch around menu draw code, minor formatting, and added events.</remarks>
/// <remarks>This implementation is identical to <see cref="Game1.Draw"/>, except for try..catch around menu draw code, private field references replaced by wrappers, and added events.</remarks>
[SuppressMessage("ReSharper", "CompareOfFloatsByEqualityOperator", Justification = "copied from game code as-is")]
[SuppressMessage("ReSharper", "LocalVariableHidesMember", Justification = "copied from game code as-is")]
[SuppressMessage("ReSharper", "PossibleLossOfFraction", Justification = "copied from game code as-is")]