/// <summary>
/// 绘制范围网格
/// </summary>
public override void OnMouseDowning()
{
cornerEnd = map.mouseCellPos;
var leftBottom = new Vector2Int();
var rightTop = new Vector2Int();
EX_Vector2Int.TwoCorner(ref leftBottom, ref rightTop, cornerBegin, cornerEnd);
var _leftBottom = map.GridToWorld(leftBottom) - map.cellSize / 2;
var _rightTop = map.GridToWorld(rightTop) + map.cellSize / 2;
var _center = (_leftBottom + _rightTop) / 2;
var _size = _rightTop - _leftBottom;
Handles.color = wireframeColor;
Handles.DrawWireCube(_center, _size);
}
/// <summary>
/// 鼠标抬起，若无取消，则执行矩形操作
/// </summary>
public override void OnMouseUp()
{
if (cancel)
{
cancel = false;
HideOrShowLastCoverTiles(false);
return;
}
var cellPositions = EX_Vector2Int.Range(cornerBegin, cornerEnd);
for (int y = 0; y < cellPositions.Length; y++)
{
for (int x = 0; x < cellPositions[y].Length; x++)
{
RectOperation(cellPositions[y][x]);
}
}
}
/// <summary>
/// 鼠标网格位置发生变化时触发
/// 触发频率比OnMouseDowning更低
/// 对性能敏感的操作可放置于此
/// </summary>
public override void OnMouseCellPosChange()
{
OnMouseDowning();
// 释放上一帧隐藏的Tile
HideOrShowLastCoverTiles(false);
// 暂时隐藏当前Rect覆盖位置地图中的的Tile
var cellPositions = EX_Vector2Int.Range(cornerBegin, cornerEnd);
lastCoverTiles = new E_PrefabTile[cellPositions.Length][];
for (int y = 0; y < cellPositions.Length; y++)
{
lastCoverTiles[y] = new E_PrefabTile[cellPositions[y].Length];
for (int x = 0; x < cellPositions[y].Length; x++)
{
lastCoverTiles[y][x] = map.GetTileByCellPos(cellPositions[y][x]);
}
}
HideOrShowLastCoverTiles(true);
}
/// <summary>
/// 鼠标网格位置发生变化时更新
/// </summary>
public override void OnMouseCellPosChange()
{
base.OnMouseCellPosChange();
// 获取两个角落
var leftBottom = new Vector2Int();
var rightTop = new Vector2Int();
EX_Vector2Int.TwoCorner(ref leftBottom, ref rightTop, cornerBegin, cornerEnd);
var gridSize = rightTop - leftBottom + Vector2Int.one;
// 生成新数组
var tileArray2D = new E_PrefabTile[gridSize.y][];
// 旧的参数
var oldArray = window.tempTileArray2D;
var oldSize = new Vector2Int(oldArray[0].Length, oldArray.Length);
var oldOffset = window.tempTileArray2DOffset;
var oldUseful = new bool[oldSize.y][];
// 初始化利用表(不被利用的tile将被destroy)
for (int y = 0; y < oldSize.y; y++)
{
oldUseful[y] = new bool[oldSize.x];
for (int x = 0; x < oldSize.x; x++)
{
oldUseful[y][x] = false;
}
}
// 生成新的
for (int y = 0; y < gridSize.y; y++)
{
tileArray2D[y] = new E_PrefabTile[gridSize.x];
for (int x = 0; x < gridSize.x; x++)
{
var gridPos = new Vector2Int(x, y) + leftBottom;
var arrayIndex = gridPos - oldOffset;
// 利用重叠部分
if (arrayIndex.x >= 0 && arrayIndex.x < oldSize.x && arrayIndex.y >= 0 && arrayIndex.y < oldSize.y)
{
var oldTile = oldArray[arrayIndex.y][arrayIndex.x];
tileArray2D[y][x] = oldTile;
oldTile.SetCellPos(gridPos);
oldUseful[arrayIndex.y][arrayIndex.x] = true;
}
// 生成未有部分
else
{
tileArray2D[y][x] = E_PrefabTile.Create(window.currentTile);
tileArray2D[y][x].SetMap(window.currentMap)
.SetCellPos(gridPos);
}
}
}
// 删除未利用的
for (int y = 0; y < oldSize.y; y++)
{
for (int x = 0; x < oldSize.x; x++)
{
if (!oldUseful[y][x])
{
oldArray[y][x].DestroySelfImmediate();
}
}
}
// 更新参数
window.tempTileArray2D = tileArray2D;
window.tempTileArray2DOffset = leftBottom;
}