using UnityEngine;
using UnityEditor;

public class JiaJuEditor : EditorWindow
{
    [MenuItem("Ares/家具编辑器")]
    static void DoIt()
    {
        var win = (JiaJuEditor)EditorWindow.GetWindow(typeof(JiaJuEditor));
        win.Show();
    }

    private string _outText = string.Empty;
    private int _colCount = 1;
    private int _rowCount = 1;
    private float _posX = 0;
    private float _posZ = 0;
    private float _rotY = 0;
    private float _cellSize = 1;
    private bool[] _cellBlocks = null;

    private void OnGUI()
    {
        EditorGUILayout.BeginVertical();
        GUILayout.TextField(_outText);
        EditorGUILayout.BeginHorizontal();
        GUILayout.Label("行");
        _rowCount = EditorGUILayout.IntField(_rowCount);
        GUILayout.Label("列");
        _colCount = EditorGUILayout.IntField(_colCount);
        GUILayout.Label("格子大小");
        _cellSize = EditorGUILayout.FloatField(_cellSize);
        EditorGUILayout.EndHorizontal();

        var modelGo = GameObject.Find("[JiaJuEditorModel]");
        if (modelGo == null)
        {
            modelGo = new GameObject("[JiaJuEditorModel]");
        }

        EditorGUILayout.BeginHorizontal();
        _posX = EditorGUILayout.FloatField("X", _posX);
        _posZ = EditorGUILayout.FloatField("Z", _posZ);
        _rotY = EditorGUILayout.FloatField("旋转", _rotY);
        EditorGUILayout.EndHorizontal();
        modelGo.transform.localPosition = new Vector3(_posX, 0, _posZ);
        modelGo.transform.localEulerAngles = new Vector3(0, _rotY, 0);

        var spr = modelGo.GetComponent<GizmosMono>();
        if (spr == null)
        {
            spr = modelGo.AddComponent<GizmosMono>();
        }
        spr.parent = this;
        if (_colCount <= 0)
        {
            _colCount = 1;
        }
        if (_rowCount <= 0)
        {
            _rowCount = 1;
        }
        if (_cellBlocks == null || _cellBlocks.Length != _colCount * _rowCount)
        {
            _cellBlocks = new bool[_colCount * _rowCount];
            for(int i = 0; i < _cellBlocks.Length; ++i)
            {
                _cellBlocks[i] = true;
            }
        }

        for(int row = _rowCount - 1; row >= 0; --row)
        {
            EditorGUILayout.BeginHorizontal();
            for(int col = 0; col < _colCount; ++col)
            {
                var index = row * _colCount + col;
                if (_cellBlocks[index])
                {
                    GUI.color = Color.red;
                    if (GUILayout.Button(index.ToString(), GUILayout.Width(50), GUILayout.Height(50)))
                    {
                        _cellBlocks[index] = false;
                    }
                }
                else
                {
                    GUI.color = Color.white;
                    if (GUILayout.Button(index.ToString(), GUILayout.Width(50), GUILayout.Height(50)))
                    {
                        _cellBlocks[index] = true;
                    }
                }
            }
            EditorGUILayout.EndHorizontal();
        }
        EditorGUILayout.EndVertical();

        _outText = string.Format("{0}_{1}_{2}_{3}_{4}", _rowCount, _colCount, _posX, _posZ, _rotY);
        for(int i = 0; i < _cellBlocks.Length; ++i)
        {
            if(_cellBlocks[i] == false)
            {
                _outText = _outText + string.Format("_{0}", i);
            }
        }
    }

    public class GizmosMono : MonoBehaviour
    {
        public JiaJuEditor parent = null;
        void OnDrawGizmos()
        {
            if (parent == null)
                return;
            float hsize = parent._cellSize * 0.9f;
            Vector3 blockSize = new Vector3(hsize, hsize / 10.0f, hsize);
            Gizmos.matrix = Matrix4x4.identity;
            for (int i = 0; i < parent._rowCount; ++i)
            {
                for (int j = 0; j < parent._colCount; ++j)
                {
                    var index = i * parent._colCount + j;
                    if(parent._cellBlocks[index])
                    {
                        Gizmos.color = Color.red;
                    }
                    else
                    {
                        Gizmos.color = Color.gray;
                    }
                    Gizmos.DrawCube(new Vector3(j * parent._cellSize + parent._cellSize / 2, 0, i * parent._cellSize + parent._cellSize / 2), blockSize);
                }
            }
        }
    }
}