beyond/Assets/Scripts/UI/Editor/TradeMenuControllerEditor.cs

using UnityEditor;
using UnityEngine;

namespace Beyond
{
    [CustomEditor(typeof(TradeMenuController))]
    [System.Serializable]
    public class TradeMenuControllerEditor : vEditorBase
    {
        //  SerializedProperty itemListData;
        private SerializedProperty shopItemRefs;

        private TradeMenuController tradeMenuController;
        private Rect buttonRect;
        private Vector2 scroll;
        private GUISkin oldSkin;

        protected override void OnEnable()
        {
            base.OnEnable();
            skin = Resources.Load("vSkin") as GUISkin;
            tradeMenuController = (TradeMenuController)target;
            shopItemRefs = serializedObject.FindProperty("shopItemRefs");
        }

        public override void OnInspectorGUI()
        {
            // GUILayout.Label("This is a Label in a Custom Editor");
            oldSkin = GUI.skin;

            if (skin)
            {
                GUI.skin = skin;
            }
            DrawPropertiesExcluding(serializedObject, "shopItemRefs");

            if (tradeMenuController.itemListData)
            {
                if (GUILayout.Button("Open Item List"))
                {
                    ShowItemListWindow();
                }
                GUILayout.BeginVertical("box");

                GUILayout.Box("Shop Items " + tradeMenuController.shopItemRefs.Count);
                if (GUILayout.Button("Add Item", EditorStyles.miniButton))
                {
                    PopupWindow.Show(buttonRect, new bItemSelector
                    (tradeMenuController.itemListData.items, ref tradeMenuController.itemsFilter,
                        (bItem item) => //OnSelectItem
                        {
                            Debug.Log(item);
                            shopItemRefs.arraySize++;
                            shopItemRefs.GetArrayElementAtIndex(shopItemRefs.arraySize - 1)
                                .FindPropertyRelative("id").intValue = item.id;
                            shopItemRefs.GetArrayElementAtIndex(shopItemRefs.arraySize - 1)
                                .FindPropertyRelative("amount").intValue = 1;
                            EditorUtility.SetDirty(tradeMenuController);
                            serializedObject.ApplyModifiedProperties();
                        }
                    ));
                }

                if (Event.current.type == EventType.Repaint)
                {
                    buttonRect = GUILayoutUtility.GetLastRect();
                }

                GUIStyle boxStyle = new GUIStyle(GUI.skin.box);
                scroll = GUILayout.BeginScrollView(scroll, GUILayout.MinHeight(200), GUILayout.ExpandHeight(false),
                    GUILayout.ExpandWidth(false));
                try
                {
                    for (int i = 0; i < tradeMenuController.shopItemRefs.Count; i++)
                    {
                        var item = tradeMenuController.itemListData.items.Find(t =>
                            t.id.Equals(tradeMenuController.shopItemRefs[i].id));
                        if (item)
                        {
                            GUILayout.BeginVertical("box");
                            GUILayout.BeginHorizontal();
                            GUILayout.BeginHorizontal();

                            var rect = GUILayoutUtility.GetRect(50, 50);

                            if (item.icon != null)
                            {
                                DrawTextureGUI(rect, item.icon, new Vector2(50, 50));
                            }

                            var name = " ID " + item.id.ToString("00") + "\n - " + item.name + "\n - " +
                                       item.type.ToString();
                            var content = new GUIContent(name, null, "Click to Open");
                            GUILayout.Label(content, EditorStyles.miniLabel);
                            GUILayout.BeginVertical("box");

                            GUILayout.BeginHorizontal();
                            GUILayout.Label("Amount", EditorStyles.miniLabel);
                            tradeMenuController.shopItemRefs[i].amount =
                                EditorGUILayout.IntField(tradeMenuController.shopItemRefs[i].amount, GUILayout.Width(30));

                            if (tradeMenuController.shopItemRefs[i].amount < 1)
                            {
                                tradeMenuController.shopItemRefs[i].amount = 1;
                            }

                            GUILayout.EndHorizontal();
                            GUILayout.EndVertical();
                            GUILayout.EndHorizontal();

                            if (GUILayout.Button("x", GUILayout.Width(25), GUILayout.Height(25)))
                            {
                                shopItemRefs.DeleteArrayElementAtIndex(i);
                                EditorUtility.SetDirty(target);
                                serializedObject.ApplyModifiedProperties();
                                break;
                            }

                            GUILayout.EndHorizontal();

                            Color backgroundColor = GUI.backgroundColor;
                            GUI.backgroundColor = Color.clear;
                            var _rec = GUILayoutUtility.GetLastRect();
                            _rec.width -= 100;

                            EditorGUIUtility.AddCursorRect(_rec, MouseCursor.Link);

                            if (GUI.Button(_rec, ""))
                            {
                                ShowItemListWindow(item);
                            }

                            GUILayout.Space(7);
                            GUI.backgroundColor = backgroundColor;
                            if (item.attributes != null && item.attributes.Count > 0)
                            {
                                if (tradeMenuController.shopItemRefs[i].changeAttributes)
                                {
                                    if (GUILayout.Button("Reset", EditorStyles.miniButton))
                                    {
                                        tradeMenuController.shopItemRefs[i].attributes = null;
                                    }

                                    if (tradeMenuController.shopItemRefs[i].attributes == null)
                                    {
                                        tradeMenuController.shopItemRefs[i].attributes = item.attributes.CopyAsNew();
                                    }
                                    else if (tradeMenuController.shopItemRefs[i].attributes.Count !=
                                             item.attributes.Count)
                                    {
                                        tradeMenuController.shopItemRefs[i].attributes = item.attributes.CopyAsNew();
                                    }
                                    else
                                    {
                                        for (int a = 0; a < tradeMenuController.shopItemRefs[i].attributes.Count; a++)
                                        {
                                            GUILayout.BeginHorizontal();
                                            GUILayout.Label(tradeMenuController.shopItemRefs[i].attributes[a].name
                                                .ToString());
                                            tradeMenuController.shopItemRefs[i].attributes[a].value =
                                                EditorGUILayout.IntField(
                                                    tradeMenuController.shopItemRefs[i].attributes[a].value,
                                                    GUILayout.MaxWidth(60));
                                            GUILayout.EndHorizontal();
                                        }
                                    }
                                }
                            }

                            GUILayout.EndVertical();
                        }
                        else
                        {
                            shopItemRefs.DeleteArrayElementAtIndex(i);
                            EditorUtility.SetDirty(tradeMenuController);
                            serializedObject.ApplyModifiedProperties();
                            break;
                        }
                    }
                }
                catch
                {
                }
                GUILayout.EndScrollView();
                GUI.skin.box = boxStyle;

                GUILayout.EndVertical();
            }

            GUI.skin = oldSkin;
            if (GUI.changed)
            {
                EditorUtility.SetDirty(tradeMenuController);
                serializedObject.ApplyModifiedProperties();
            }
        }

        private void DrawTextureGUI(Rect position, Sprite sprite, Vector2 size)
        {
            Rect spriteRect = new Rect(sprite.rect.x / sprite.texture.width, sprite.rect.y / sprite.texture.height,
                sprite.rect.width / sprite.texture.width, sprite.rect.height / sprite.texture.height);
            Vector2 actualSize = size;
            actualSize.y *= (sprite.rect.height / sprite.rect.width);
            GUI.DrawTextureWithTexCoords(new Rect(position.x, position.y + (size.y - actualSize.y) / 2, actualSize.x, actualSize.y), sprite.texture, spriteRect);
        }

        protected virtual void ShowItemListWindow(bItem item = null)
        {
            if (item == null)
            {
                bItemListWindow.CreateWindow(tradeMenuController.itemListData);
            }
            else if (tradeMenuController.itemListData.inEdition)
            {
                if (bItemListWindow.Instance == null)
                {
                    bItemListWindow.CreateWindow(tradeMenuController.itemListData, tradeMenuController.itemListData.items.IndexOf(item));
                }
            }
            else
            {
                bItemListWindow.CreateWindow(tradeMenuController.itemListData, tradeMenuController.itemListData.items.IndexOf(item));
            }

            if (item)
            {
                bItemListWindow.SetCurrentSelectedItem(tradeMenuController.itemListData.items.IndexOf(item));
            }
        }
    }
}