65 lines
1.5 KiB
C#
65 lines
1.5 KiB
C#
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/******************************************************************************/
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/*
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Project - MudBun
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Publisher - Long Bunny Labs
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http://LongBunnyLabs.com
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Author - Ming-Lun "Allen" Chou
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http://AllenChou.net
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*/
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/******************************************************************************/
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using System.Collections.Generic;
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using UnityEngine;
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namespace MudBun
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{
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public class Expander : MonoBehaviour
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{
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public float Period = 2.0f;
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public float Distance = 1.0f;
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private struct Mover
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{
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public Transform Transform;
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public Vector3 Origin;
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public Vector3 Direction;
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}
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private List<Mover> m_aMover;
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private void Start()
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{
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m_aMover = new List<Mover>();
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for (int i = 0; i < transform.childCount; ++i)
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{
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var child = transform.GetChild(i);
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if (child.transform.localPosition.sqrMagnitude < MathUtil.Epsilon)
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continue;
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m_aMover.Add
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(
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new Mover ()
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{
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Transform = child,
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Origin = child.localPosition,
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Direction = child.localPosition.normalized
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}
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);
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}
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}
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private float m_timer = 0.0f;
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private void Update()
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{
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m_timer = Mathf.Repeat(m_timer + Time.deltaTime, Period);
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float c = Mathf.Cos(MathUtil.TwoPi * m_timer / Period);
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float h = 0.5f * Distance;
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foreach (var mover in m_aMover)
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{
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mover.Transform.localPosition = mover.Origin + (h - h * c) * mover.Direction;
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}
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}
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}
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}
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