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Slot: 一定確率で直前と同じ出目が出るようにする #26

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merged 1 commit into from
Nov 23, 2024
Merged

Slot: 一定確率で直前と同じ出目が出るようにする #26

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3 changes: 3 additions & 0 deletions Common/Master/SlotItemMaster.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,14 @@
public override string Key => Id;

[field: MasterStringValue("id")]
public string Id { get; }

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Non-nullable property 'Id' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

[field: MasterStringValue("format")]
public string Format { get; }

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Non-nullable property 'Format' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

[field: MasterIntValue("return_rate_permillage")]
public int ReturnRatePermillage { get; }

[field: MasterIntValue("repeat_permillage")]
public int RepeatPermillage { get; }
}
5 changes: 5 additions & 0 deletions Common/NumberUtility.cs
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Expand Up @@ -22,6 +22,11 @@ public static TimeSpan GetTimeSpanFromMilliseconds(float milliseconds)
return TimeSpan.FromMilliseconds(milliseconds);
}

public static float GetProbabilityFromPermillage(int permillage)
{
return permillage / 100000f;
}

public static float GetPercentFromPermillage(int permillage)
{
return permillage / 1000f;
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24 changes: 21 additions & 3 deletions Common/SlotManager.cs
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Expand Up @@ -15,9 +15,27 @@
public SlotExecuteResult Execute()
{
var itemCount = _items.Count;
var reelItems = EnumerableUtility
.Repeat(() => _items[RandomUtility.GetRandomInt(itemCount)], ReelCount)
.ToArray();

var reelItems = new SlotItem[ReelCount];
for (var i = 0; i < ReelCount; i++)
{
if (i == 0)
{
reelItems[i] = _items[RandomUtility.GetRandomInt(itemCount)];
continue;
}

// 一定確率で直前と同じ出目が出る
var repeatProbability = NumberUtility.GetProbabilityFromPermillage(reelItems[i - 1].RepeatPermillage);
var isRepeat = RandomUtility.IsHit(repeatProbability);
if (isRepeat)
{
reelItems[i] = reelItems[i - 1];
continue;
}

reelItems[i] = _items[RandomUtility.GetRandomInt(itemCount)];
}

var isWin = reelItems.Select(x => x.Id).Distinct().Count() == 1;
var resultRatePermillage = isWin ? reelItems[0].ReturnRatePermillage : 0;
Expand All @@ -33,7 +51,7 @@

public class SlotExecuteResult
{
public SlotItem[] ReelItems { get; set; }

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Non-nullable property 'ReelItems' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.
public bool IsWin { get; set; }
public int ResultRatePermillage { get; set; }
}
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