init commit

Assets/Others/Canvas.prefab.meta

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Assets/Others/FPS.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class FPS : MonoBehaviour
+{
+    public static bool showFPS = true;
+    public static float fps;
+    private static float frameCount;
+    private static float elapse;
+    private GUIStyle _fpsStyle;
+    public GUIStyle fpsStyle
+    {
+        get
+        {
+            if (_fpsStyle == null)
+            {
+                int h = Screen.height;
+                _fpsStyle = new GUIStyle();
+                _fpsStyle.alignment = TextAnchor.UpperLeft;
+                _fpsStyle.fontSize = h * 2 / 100;
+                _fpsStyle.normal.textColor = Color.magenta;
+            }
+            return _fpsStyle;
+        }
+    }
+
+    void Start()
+    {
+        Application.targetFrameRate = 60;
+    }
+
+    void OnGUI()
+    {
+        frameCount++;
+        elapse += Time.unscaledDeltaTime;
+        if (elapse >= 1)
+        {
+            fps = frameCount / elapse;
+            elapse = 0;
+            frameCount = 0;
+        }
+        if (!showFPS) return;
+
+        string text = string.Format("FPS: {0:0.}", fps);
+        int w = Screen.width, h = Screen.height;
+        Rect rect = new Rect(20, h * 0.4f, w * 0.5f, h * 2 / 100);
+        GUI.Label(rect, text, fpsStyle);
+    }
+}

Assets/Others/FPS.cs.meta

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Assets/Others/TestUI.cs

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+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using TMPro;
+using UnityEngine;
+
+public class TestUI : MonoBehaviour
+{
+    public TMP_Dropdown QualityDropdown;
+
+    private void OnEnable()
+    {
+        InitDropdown();
+    }
+
+    private void InitDropdown()
+    {
+        QualityDropdown.ClearOptions();
+        QualityDropdown.AddOptions(QualitySettings.names.ToList());
+        QualityDropdown.value = QualitySettings.GetQualityLevel();
+        QualityDropdown.onValueChanged.AddListener(index => QualitySettings.SetQualityLevel(index));
+    }
+}

Assets/Others/TestUI.cs.meta

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