71 lines
2.0 KiB
C#
71 lines
2.0 KiB
C#
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using UnityEngine;
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using System.Collections;
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using UnityEngine.UI;
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using MoreMountains.Tools;
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namespace MoreMountains.Tools
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{
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/// <summary>
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/// Use this class on a sprite or mesh to have its texture pan according to the specified speed
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/// You can also force a sorting layer name
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/// </summary>
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[AddComponentMenu("More Mountains/Tools/VFX/PanningTexture")]
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public class PanningTexture : MonoBehaviour
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{
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/// the speed at which the texture pans
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public Vector2 Speed = new Vector2(10,10);
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/// the name of the sorting layer to render the texture at
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public string SortingLayerName = "Above";
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protected RawImage _rawImage;
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protected Renderer _renderer;
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protected Vector2 _position = Vector2.zero;
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/// <summary>
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/// On start, grabs the renderer and/or raw image
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/// </summary>
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protected virtual void Start()
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{
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_renderer = GetComponent<Renderer>();
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if ((_renderer != null) && (!string.IsNullOrEmpty(SortingLayerName)))
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{
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_renderer.sortingLayerName = SortingLayerName;
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}
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_rawImage = GetComponent<RawImage>();
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}
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/// <summary>
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/// On update, moves the texture around according to the specified speed
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/// </summary>
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protected virtual void Update()
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{
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if ((_rawImage == null) && (_renderer == null))
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{
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return;
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}
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_position += (Speed / 300) * Time.deltaTime;
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// position reset
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if (_position.x > 1.0f)
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{
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_position.x -= 1.0f;
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}
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if (_position.y > 1.0f)
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{
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_position.y -= 1.0f;
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}
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if (_renderer != null)
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{
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_renderer.material.mainTextureOffset = _position;
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}
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if (_rawImage != null)
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{
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_rawImage.material.mainTextureOffset = _position;
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}
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}
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}
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}
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