91 lines
2.1 KiB
C#
91 lines
2.1 KiB
C#
// (c) Copyright HutongGames, LLC 2010-2018. All rights reserved.
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using UnityEngine;
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namespace HutongGames.PlayMaker.Actions
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{
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[ActionCategory(ActionCategory.Array)]
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[Tooltip("Get a Random item from an Array.")]
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public class ArrayGetRandom : FsmStateAction
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{
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[RequiredField]
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[UIHint(UIHint.Variable)]
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[Tooltip("The Array to use.")]
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public FsmArray array;
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[RequiredField]
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[UIHint(UIHint.Variable)]
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[Tooltip("Store the value in a variable.")]
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[MatchElementType("array")]
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public FsmVar storeValue;
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[Tooltip("The index of the value in the array.")]
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[UIHint(UIHint.Variable)]
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public FsmInt index;
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[Tooltip("Don't get the same item twice in a row.")]
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public FsmBool noRepeat;
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[Tooltip("Repeat every frame while the state is active.")]
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public bool everyFrame;
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private int randomIndex;
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private int lastIndex = -1;
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public override void Reset()
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{
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array = null;
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storeValue = null;
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index = null;
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everyFrame = false;
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noRepeat = false;
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}
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// Code that runs on entering the state.
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public override void OnEnter()
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{
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DoGetRandomValue();
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if (!everyFrame)
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{
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Finish();
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}
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}
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public override void OnUpdate()
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{
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DoGetRandomValue();
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}
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private void DoGetRandomValue()
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{
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if (storeValue.IsNone)
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{
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return;
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}
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if (!noRepeat.Value || array.Length == 1)
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{
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randomIndex = Random.Range(0, array.Length);
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}
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else
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{
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do
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{
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randomIndex = Random.Range(0, array.Length);
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} while (randomIndex == lastIndex);
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lastIndex = randomIndex;
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}
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index.Value = randomIndex;
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storeValue.SetValue(array.Get(index.Value));
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}
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}
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}
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