mirror of
https://github.com/BlackMATov/unity-iso-tools.git
synced 2025-12-15 01:12:05 +07:00
422 lines
12 KiB
C#
422 lines
12 KiB
C#
using UnityEngine;
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using System;
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using System.Collections.Generic;
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#if UNITY_EDITOR
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using UnityEditor;
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#endif
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namespace IsoTools {
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[ExecuteInEditMode]
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public class IsoWorld : MonoBehaviour {
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/// <summary>World tile types.</summary>
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public enum TileTypes {
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Isometric,
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UpDown
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}
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class ObjectInfo {
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public int Index;
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public IsoObject IsoObject;
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public Vector3 MinSector;
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public Vector3 MaxSector;
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public bool Visited;
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public int BeginDepend;
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public int EndDepend;
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public ObjectInfo(int index, IsoObject iso_object, Vector3 min_sector, Vector3 max_sector) {
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Index = index;
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IsoObject = iso_object;
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MinSector = min_sector;
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MaxSector = max_sector;
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}
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public void Init(int first_depend) {
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Visited = false;
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BeginDepend = first_depend;
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EndDepend = first_depend;
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}
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}
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class SectorInfo {
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public List<int> Objects = new List<int>();
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}
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bool _dirty = true;
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List<SectorInfo> _sectors = new List<SectorInfo>();
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List<ObjectInfo> _objects = new List<ObjectInfo>();
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List<int> _depends = new List<int>();
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float _objsSectorSize = 0.0f;
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Vector3 _objsMinNumPos = Vector3.zero;
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Vector3 _objsMaxNumPos = Vector3.zero;
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Vector3 _objsNumPosCount = Vector3.zero;
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TileTypes _lastTileType = TileTypes.Isometric;
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float _lastTileSize = 0.0f;
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float _lastMinDepth = 0.0f;
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float _lastMaxDepth = 0.0f;
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[SerializeField]
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public TileTypes _tileType = TileTypes.Isometric;
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/// <summary>World tile type.</summary>
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public TileTypes TileType {
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get { return _tileType; }
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set {
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_tileType = value;
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ChangeSortingProperty();
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}
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}
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[SerializeField]
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public float _tileSize = 32.0f;
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/// <summary>Isometric tile size.</summary>
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public float TileSize {
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get { return _tileSize; }
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set {
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_tileSize = Math.Max(value, Mathf.Epsilon);
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ChangeSortingProperty();
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}
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}
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[SerializeField]
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public float _minDepth = 0.0f;
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/// <summary>Min sorting depth value.</summary>
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public float MinDepth {
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get { return _minDepth; }
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set {
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_minDepth = value;
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ChangeSortingProperty();
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}
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}
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[SerializeField]
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public float _maxDepth = 100.0f;
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/// <summary>Max sorting depth value.</summary>
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public float MaxDepth {
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get { return _maxDepth; }
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set {
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_maxDepth = value;
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ChangeSortingProperty();
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}
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}
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// ------------------------------------------------------------------------
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/// <summary>
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/// Marks world for resorting.
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/// </summary>
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// ------------------------------------------------------------------------
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public void MarkDirty() {
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_dirty = true;
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MarkEditorWorldDirty();
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}
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// ------------------------------------------------------------------------
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/// <summary>
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/// Marks world for resorting.
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/// </summary>
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/// <param name="obj">Isometric object for resorting.</param>
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// ------------------------------------------------------------------------
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public void MarkDirty(IsoObject obj) {
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if ( obj && obj.Sorting ) {
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var renderer = obj.GetComponent<Renderer>();
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if ( renderer && renderer.isVisible ) {
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MarkDirty();
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}
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}
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}
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// ------------------------------------------------------------------------
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/// <summary>
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/// Convert isometric coordinates to screen coordinates
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/// </summary>
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/// <returns>Screen coordinates</returns>
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/// <param name="pos">Isometric coordinates.</param>
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// ------------------------------------------------------------------------
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public Vector2 IsoToScreen(Vector3 pos) {
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switch ( TileType ) {
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case TileTypes.Isometric:
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return new Vector2(
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(pos.x - pos.y),
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(pos.x + pos.y) * 0.5f + pos.z) * TileSize;
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case TileTypes.UpDown:
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return new Vector2(
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pos.x,
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pos.y + pos.z) * TileSize;
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default:
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throw new UnityException("IsoWorld. TileType is wrong!");
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}
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}
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// ------------------------------------------------------------------------
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/// <summary>
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/// Convert screen coordinates to isometric coordinates
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/// </summary>
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/// <returns>Isometric coordinates</returns>
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/// <param name="pos">Screen coordinates.</param>
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// ------------------------------------------------------------------------
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public Vector3 ScreenToIso(Vector2 pos) {
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switch ( TileType ) {
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case TileTypes.Isometric:
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return new Vector3(
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(pos.x * 0.5f + pos.y),
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(pos.y - pos.x * 0.5f),
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0.0f) / TileSize;
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case TileTypes.UpDown:
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return new Vector3(
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pos.x,
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pos.y,
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0.0f) / TileSize;
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default:
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throw new UnityException("IsoWorld. TileType is wrong!");
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}
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}
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// ------------------------------------------------------------------------
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/// <summary>
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/// Convert screen coordinates to isometric coordinates with specified isometric height
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/// </summary>
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/// <returns>Isometric coordinates</returns>
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/// <param name="pos">Screen coordinates.</param>
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/// <param name="iso_z">Point isometric height.</param>
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// ------------------------------------------------------------------------
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public Vector3 ScreenToIso(Vector2 pos, float iso_z) {
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switch ( TileType ) {
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case TileTypes.Isometric: {
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var iso_pos = ScreenToIso(new Vector2(pos.x, pos.y - iso_z * TileSize));
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iso_pos.z = iso_z;
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return iso_pos;
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}
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case TileTypes.UpDown: {
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var iso_pos = ScreenToIso(new Vector2(pos.x, pos.y - iso_z * TileSize));
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iso_pos.z = iso_z;
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return iso_pos;
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}
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default:
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throw new UnityException("IsoWorld. TileType is wrong!");
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}
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}
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void MarkEditorWorldDirty() {
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#if UNITY_EDITOR
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if ( Application.isEditor ) {
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EditorUtility.SetDirty(this);
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}
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#endif
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}
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void ApplyToAllIsoObjects(Action<IsoObject> act) {
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var iso_objects = GameObject.FindObjectsOfType<IsoObject>();
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foreach ( var obj in iso_objects ) {
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act(obj);
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}
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}
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void FixAllTransforms() {
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ApplyToAllIsoObjects(obj => obj.FixTransform());
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}
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void ChangeSortingProperty() {
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MarkDirty();
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FixAllTransforms();
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_lastTileType = TileType;
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_lastTileSize = TileSize;
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_lastMinDepth = MinDepth;
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_lastMaxDepth = MaxDepth;
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}
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int SectorIndex(Vector3 num_pos) {
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return Mathf.FloorToInt(
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num_pos.x + _objsNumPosCount.x * (num_pos.y + num_pos.z * _objsNumPosCount.y));
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}
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Vector3 SectorNumPos(int index) {
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var mz = _objsNumPosCount.x * _objsNumPosCount.y;
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var my = _objsNumPosCount.x;
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var vz = Mathf.FloorToInt(index / mz);
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var vy = Mathf.FloorToInt((index - vz * mz) / my);
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var vx = Mathf.FloorToInt(index - vz * mz - vy * my);
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return new Vector3(vx, vy, vz);
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}
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SectorInfo FindSector(Vector3 num_pos) {
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if ( num_pos.x < 0 || num_pos.y < 0 || num_pos.z < 0 ) {
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return null;
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}
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if ( num_pos.x >= _objsNumPosCount.x || num_pos.y >= _objsNumPosCount.y || num_pos.z >= _objsNumPosCount.z ) {
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return null;
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}
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return _sectors[SectorIndex(num_pos)];
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}
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void LookUpSectorDepends(Vector3 num_pos, Action<SectorInfo> act) {
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var ms = FindSector(num_pos);
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if ( ms != null ) {
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act(ms);
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var s1 = FindSector(num_pos + new Vector3(-1, 0, 0));
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var s2 = FindSector(num_pos + new Vector3( 0, -1, 0));
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var s3 = FindSector(num_pos + new Vector3(-1, -1, 0));
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if ( s1 != null ) act(s1);
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if ( s2 != null ) act(s2);
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if ( s3 != null ) act(s3);
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for ( var i = 0; i <= _objsNumPosCount.z; ++i ) {
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var ss1 = FindSector(num_pos + new Vector3( 0 - i, 0 - i, i + 1));
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var ss2 = FindSector(num_pos + new Vector3(-1 - i, 0 - i, i + 1));
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var ss3 = FindSector(num_pos + new Vector3( 0 - i, -1 - i, i + 1));
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var ss4 = FindSector(num_pos + new Vector3(-1 - i, -1 - i, i + 1));
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var ss5 = FindSector(num_pos + new Vector3(-2 - i, -1 - i, i + 1));
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var ss6 = FindSector(num_pos + new Vector3(-1 - i, -2 - i, i + 1));
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var ss7 = FindSector(num_pos + new Vector3(-2 - i, -2 - i, i + 1));
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if ( ss1 != null ) act(ss1);
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if ( ss2 != null ) act(ss2);
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if ( ss3 != null ) act(ss3);
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if ( ss4 != null ) act(ss4);
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if ( ss5 != null ) act(ss5);
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if ( ss6 != null ) act(ss6);
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if ( ss7 != null ) act(ss7);
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}
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}
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}
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bool IsDepends(Vector3 a_min, Vector3 a_size, Vector3 b_min, Vector3 b_size) {
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var a_max = a_min + a_size;
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var b_max = b_min + b_size;
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return a_max.x > b_min.x && a_max.y > b_min.y && b_max.z > a_min.z;
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}
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void SetupSectorSize(IsoObject[] iso_objects) {
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_objsSectorSize = 0.0f;
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var objsSum = 0;
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foreach ( var obj in iso_objects ) {
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var renderer = obj.GetComponent<Renderer>();
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if ( renderer && renderer.isVisible ) {
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++objsSum;
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_objsSectorSize += Mathf.Max(obj.Size.x, obj.Size.y, obj.Size.z);
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}
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}
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_objsSectorSize = Mathf.Round(Mathf.Max(3.0f, _objsSectorSize / objsSum));
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}
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void SetupObjects(IsoObject[] iso_objects) {
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_objects.Clear();
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_objsMinNumPos = Vector3.zero;
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_objsMaxNumPos = Vector3.one;
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foreach ( var obj in iso_objects ) {
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var renderer = obj.GetComponent<Renderer>();
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if ( renderer && renderer.isVisible ) {
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var max_size = IsoUtils.Vec3Max(Vector3.one, obj.Size);
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var min_npos = IsoUtils.Vec3DivFloor(obj.Position, _objsSectorSize);
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var max_npos = IsoUtils.Vec3DivCeil(obj.Position + max_size, _objsSectorSize);
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_objsMinNumPos = IsoUtils.Vec3Min(_objsMinNumPos, min_npos);
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_objsMaxNumPos = IsoUtils.Vec3Max(_objsMaxNumPos, max_npos);
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_objects.Add(new ObjectInfo(_objects.Count, obj, min_npos, max_npos));
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}
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}
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_objsNumPosCount = _objsMaxNumPos - _objsMinNumPos;
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}
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void SetupSectors() {
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_sectors.Clear();
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_sectors.Capacity = Mathf.FloorToInt(_objsNumPosCount.x * _objsNumPosCount.y * _objsNumPosCount.z);
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while ( _sectors.Count < _sectors.Capacity ) {
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_sectors.Add(new SectorInfo());
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}
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foreach ( var obj in _objects ) {
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obj.MinSector -= _objsMinNumPos;
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obj.MaxSector -= _objsMinNumPos;
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IsoUtils.LookUpCube(obj.MinSector, obj.MaxSector, p => {
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var sector = FindSector(p);
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if ( sector != null ) {
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sector.Objects.Add(obj.Index);
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}
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});
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}
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}
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void SetupObjectDepends() {
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_depends.Clear();
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foreach ( var obj_a in _objects ) {
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obj_a.Init(_depends.Count);
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var obj_ao = obj_a.IsoObject;
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IsoUtils.LookUpCube(obj_a.MinSector, obj_a.MaxSector, num_pos => {
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LookUpSectorDepends(num_pos, sec => {
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foreach ( var obj_bi in sec.Objects ) {
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var obj_bo = _objects[obj_bi].IsoObject;
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if ( obj_ao != obj_bo && IsDepends(obj_ao.Position, obj_ao.Size, obj_bo.Position, obj_bo.Size) ) {
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_depends.Add(obj_bi);
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++obj_a.EndDepend;
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}
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}
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});
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});
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}
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}
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void PlaceAllObjects() {
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var depth = MinDepth;
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foreach ( var info in _objects ) {
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depth = PlaceObject(info, depth);
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}
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_sectors.Clear();
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_objects.Clear();
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_depends.Clear();
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}
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void PlaceObject(IsoObject obj, float depth) {
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var trans = obj.gameObject.transform;
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trans.position = new Vector3(trans.position.x, trans.position.y, depth);
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}
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float PlaceObject(ObjectInfo info, float depth) {
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if ( info.Visited ) {
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return depth;
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}
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info.Visited = true;
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for ( var i = info.BeginDepend; i < info.EndDepend && i < _depends.Count; ++i ) {
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var obj_index = _depends[i];
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var obj = _objects[obj_index];
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depth = PlaceObject(obj, depth);
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}
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PlaceObject(info.IsoObject, depth);
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return depth + (MaxDepth - MinDepth) / _objects.Count;
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}
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void StepSort() {
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if ( _dirty ) {
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var iso_objects = GameObject.FindObjectsOfType<IsoObject>();
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SetupSectorSize(iso_objects);
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SetupObjects(iso_objects);
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SetupSectors();
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SetupObjectDepends();
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PlaceAllObjects();
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_dirty = false;
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}
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}
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void Start() {
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ChangeSortingProperty();
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StepSort();
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}
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void LateUpdate() {
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if ( Application.isEditor ) {
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if ( _lastTileType != _tileType ) TileType = _tileType;
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if ( !Mathf.Approximately(_lastTileSize, _tileSize ) ) TileSize = _tileSize;
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if ( !Mathf.Approximately(_lastMinDepth, _minDepth ) ) MinDepth = _minDepth;
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if ( !Mathf.Approximately(_lastMaxDepth, _maxDepth ) ) MaxDepth = _maxDepth;
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}
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StepSort();
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}
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void OnEnable() {
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MarkDirty();
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}
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void OnDisable() {
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ApplyToAllIsoObjects(obj => obj.ResetIsoWorld());
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}
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}
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} // namespace IsoTools |