General editor improvements (#257)

* Spaceball cleanup and small bug fix

* Replace old hit sound in spaceball

* Camera filters

* added 9 new filters, including 3 types of sepia

* oops

* remark

* normalization of fade out and fade in on filters are by 100

* GenerateFilterTypeEnum comments

* Pure black and white filter

* Zooming

* Constant playback bar offset

* Prepare box selector rewrite

* Update icons, finalize

Assets/Scripts/LevelEditor/BeatGrid.cs

@@ -1,46 +1,103 @@
-using System.Collections;
 using System.Collections.Generic;
+using System.Globalization;
+using Starpelly;
+using TMPro;
 using UnityEngine;
 using UnityEngine.UI;
 
-using TMPro;
-
-namespace HeavenStudio.Editor
+namespace HeavenStudio.Editor.Track
 {
     public class BeatGrid : MonoBehaviour
     {
-        private RectTransform rectTransform;
+        #region Public
 
         public float snap;
         public float count;
 
+        #endregion
+
+        #region Private
+
+        private RectTransform rectTransform;
+
         private float lastPosX;
+        private float lastContentScale;
+        private float lastTimelineSize;
+
+        private float contentPosX => Mathf.Abs(scrollRect.content.localPosition.x / scrollRect.content.localScale.x);
+        private float secPerBeat => 60.0f / GameManager.instance.Beatmap.bpm;
 
         private List<GameObject> Lines = new List<GameObject>();
 
+
+        #endregion
+
+        #region Exposed
+
+        [Header("Components")]
+        [SerializeField] private ScrollRect scrollRect;
+
+        #endregion
+
+        #region MonoBehaviour
+
         private void Start()
         {
             rectTransform = GetComponent<RectTransform>();
-
-            for (int i = 0; i < count; i++)
-            {
-                GameObject line = Instantiate(transform.GetChild(0).gameObject, transform);
-                line.transform.localPosition = new Vector3(i, line.transform.localPosition.y);
-                line.SetActive(true);
-
-                Lines.Add(line);
-            }
+            UpdateCount();
         }
 
-        private void Update()
+        private void LateUpdate()
         {
-            var pos = new Vector2(Mathf.RoundToInt(Mathf.Abs(transform.parent.localPosition.x) / 100) - 1, transform.localPosition.y);
-            transform.localPosition = pos;
+            if (Editor.instance.fullscreen) return;
 
-            if (pos.x != lastPosX)
+            var x = Mathf.FloorToInt(contentPosX);
+            var pos = new Vector3(x, transform.localPosition.y, transform.localPosition.z);
+            transform.localPosition = pos;
+            GetComponent<RectTransform>().anchoredPosition = new Vector3(rectTransform.anchoredPosition.x, rectTransform.anchoredPosition.y, 0);
+
+            UpdateCount();
+        }
+
+        #endregion
+
+        private void UpdateCount()
+        {
+            var changeScale = (scrollRect.viewport.rect.size.x != lastTimelineSize || scrollRect.content.localScale.x != lastContentScale);
+            if (changeScale)
+            {
+                var rightSide = (scrollRect.viewport.GetComponent<RectTransform>().rect.width / scrollRect.content.localScale.x) + contentPosX;
+
+                for (int i = 0; i < Lines.Count; i++)
+                    Destroy(Lines[i].gameObject);
+                Lines.Clear();
+
+                count = Mathf.RoundToInt(rightSide - contentPosX) + 2;
+
+                for (int i = 0; i < count; i++)
+                {
+                    var line = Instantiate(transform.GetChild(0).gameObject, transform);
+                    line.transform.localPosition = new Vector3(i, line.transform.localPosition.y, line.transform.localPosition.z);
+
+                    var halfBeatRect = line.transform.GetChild(2).GetComponent<RectTransform>();
+                    halfBeatRect.anchoredPosition = new Vector3(scrollRect.content.localScale.x * 0.5f, halfBeatRect.anchoredPosition.y);
+                    
+                    line.SetActive(true);
+
+                    Lines.Add(line);
+                }
                 UpdateGridNum();
 
-            lastPosX = transform.localPosition.x;
+                if (count > 0) transform.GetChild(0).gameObject.SetActive(false);
+            }
+            if (scrollRect.content.anchoredPosition.x != lastPosX)
+            {
+                UpdateGridNum();
+            }
+
+            lastContentScale = scrollRect.content.localScale.x;
+            lastTimelineSize = scrollRect.viewport.rect.size.x;
+            lastPosX = scrollRect.content.anchoredPosition.x;
         }
 
         private void UpdateGridNum()
@@ -48,8 +105,10 @@ namespace HeavenStudio.Editor
             for (int i = 0; i < Lines.Count; i++)
             {
                 var line = Lines[i];
-                float newNum = transform.localPosition.x + i;
-                line.transform.GetChild(0).GetComponent<TMP_Text>().text = newNum.ToString();
+                if (line.transform.childCount == 0) continue;
+
+                var newNum = Mathf.RoundToInt(rectTransform.anchoredPosition.x + ((i) / snap));
+                line.transform.GetChild(0).GetComponent<TMP_Text>().text = newNum.ToString(CultureInfo.CurrentCulture);
             }
         }
     }