基础内容

必要插件安装
缓动曲线和动画基础
ElementFolder，Track与其次级模块，PathNode重构

Assets/Modern UI Pack/Scripts/Icon/IconManager.cs

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+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Michsky.MUIP
+{
+    [ExecuteInEditMode]
+    [DisallowMultipleComponent]
+    [AddComponentMenu("Modern UI Pack/Image/Icon Manager")]
+    [RequireComponent(typeof(Image))]
+    public class IconManager : MonoBehaviour
+    {
+        // Resources
+        public IconLibrary iconLibrary;
+
+        // Info
+        public string selectedIconID;
+        public int selectedIconIndex;
+        [Range(0, 3)] public int spriteSize;
+
+        Image imageObject;
+        [HideInInspector] public string currentSize;
+        [HideInInspector] public bool size32;
+        [HideInInspector] public bool size64;
+        [HideInInspector] public bool size128;
+        [HideInInspector] public bool size256;
+
+        void Awake()
+        {
+            try
+            {
+                if (iconLibrary == null) { iconLibrary = Resources.Load<IconLibrary>("Icon Library"); }
+                if (imageObject == null) { imageObject = gameObject.GetComponent<Image>(); }
+
+                this.enabled = true;
+                UpdateElement();
+            }
+
+            catch { Debug.LogWarning("<b>Icon Library</b> is missing, but it should be assigned.", this); }
+        }
+
+        void Update()
+        {
+            if (iconLibrary.alwaysUpdate == true) { UpdateElement(); }
+            if (Application.isPlaying == true && iconLibrary.optimizeUpdates == true) { this.enabled = false; }
+        }
+
+        public void UpdateElement()
+        {
+            if (iconLibrary == null)
+            {
+                this.enabled = false;
+                return;
+            }
+
+            for (int i = 0; i < iconLibrary.icons.Count; i++)
+            {
+                if (selectedIconID == iconLibrary.icons[i].iconTitle && gameObject.activeInHierarchy == true)
+                {
+                    if (spriteSize == 0) { imageObject.sprite = iconLibrary.icons[i].iconSprite32; }
+                    else if (spriteSize == 1) { imageObject.sprite = iconLibrary.icons[i].iconSprite64; }
+                    else if (spriteSize == 2) { imageObject.sprite = iconLibrary.icons[i].iconSprite128; }
+                    else if (spriteSize == 3) { imageObject.sprite = iconLibrary.icons[i].iconSprite256; }
+                    break;
+                }
+            }
+
+            if (iconLibrary.alwaysUpdate == false)
+                this.enabled = false;
+        }
+
+        public void UpdateSpriteSize(int spriteIndex, int newSize)
+        {
+            if (newSize == 0) { imageObject.sprite = iconLibrary.icons[spriteIndex].iconSprite32; }
+            else if (newSize == 1) { imageObject.sprite = iconLibrary.icons[spriteIndex].iconSprite64; }
+            else if (newSize == 2) { imageObject.sprite = iconLibrary.icons[spriteIndex].iconSprite128; }
+            else if (newSize == 3) { imageObject.sprite = iconLibrary.icons[spriteIndex].iconSprite256; }
+        }
+
+        public void ChangeIcon(string newSprite, int preferredSize)
+        {
+            int selectedSpriteIndex = -1;
+
+            for (int i = 0; i < iconLibrary.icons.Count; i++)
+            {
+                if (newSprite == iconLibrary.icons[i].iconTitle)
+                {
+                    selectedSpriteIndex = i;
+                    break;
+                }
+            }
+
+            if (selectedSpriteIndex != -1) { UpdateSpriteSize(selectedSpriteIndex, preferredSize); }
+            else { Debug.Log("<b>[Icon Manager]</b> Cannot find an icon named '" + newSprite + "'"); }
+        }
+    }
+}