public HeightCmdData(HeightCmdData source)
{
terrain = source.terrain;
startMapIndex = source.startMapIndex;
mapRadiusX = source.mapRadiusX;
mapRadiusZ = source.mapRadiusZ;
heightMap = new float[source.heightMap.GetLength(0), source.heightMap.GetLength(0)];
Buffer.BlockCopy(source.heightMap, 0, heightMap, 0, heightMap.Length * 4);
}
public HeightCmd(HeightCmdData cmd)
{
this.cmd = cmd;
}
/// <summary>
/// 初始化地形高度图编辑所需要的参数
/// </summary>
/// <param name="center">目标中心</param>
/// <param name="radius">半径</param>
/// <param name="mapRadius">修改半径对应的索引半径</param>
/// <param name="arg">得到的命令参数</param>
/// <returns>是否获取成功</returns>
private bool TryGetHeightMapCmd(Vector3 center, float radius, out HeightCmdData arg)
{
Vector3 leftDown = new Vector3(center.x - radius, 0, center.z - radius);
// 左下方Terrain
Terrain centerTerrain = Utility.SendRayDown(center, LayerMask.GetMask("Terrain")).collider?.GetComponent <Terrain>();
Terrain leftDownTerrain = Utility.SendRayDown(leftDown, LayerMask.GetMask("Terrain")).collider?.GetComponent <Terrain>();
arg = default(HeightCmdData);
if (leftDownTerrain != null)
{
// 获取相关参数
arg.terrain = leftDownTerrain;
arg.mapRadiusX = (int)(heightMapRes / terrainSize.x * radius);
arg.mapRadiusZ = (int)(heightMapRes / terrainSize.z * radius);
arg.mapRadiusX = arg.mapRadiusX < 1 ? 1 : arg.mapRadiusX;
arg.mapRadiusZ = arg.mapRadiusZ < 1 ? 1 : arg.mapRadiusZ;
arg.startMapIndex = TerrainUtility.GetHeightmapIndex(leftDownTerrain, leftDown);
arg.heightMap = GetHeightMap(leftDownTerrain, arg.startMapIndex.x, arg.startMapIndex.y, 2 * arg.mapRadiusX, 2 * arg.mapRadiusZ);
return(true);
}
// 左下至少有一个方向没有Terrain,大多数情况下不会进入，如果删掉地图的左边界和下边界无法编辑，影响不大，其实我很想删掉，所以注释什么的就去TM的吧
else if (centerTerrain != null)
{
// 获取相关参数
arg.terrain = centerTerrain;
arg.mapRadiusX = (int)(heightMapRes / terrainSize.x * radius);
arg.mapRadiusZ = (int)(heightMapRes / terrainSize.z * radius);
arg.mapRadiusX = arg.mapRadiusX < 1 ? 1 : arg.mapRadiusX;
arg.mapRadiusZ = arg.mapRadiusZ < 1 ? 1 : arg.mapRadiusZ;
var centerMapIndex = TerrainUtility.GetHeightmapIndex(centerTerrain, center);
arg.startMapIndex = new Vector2Int(centerMapIndex.x - arg.mapRadiusX, centerMapIndex.y - arg.mapRadiusZ);
int width = 2 * arg.mapRadiusX, height = 2 * arg.mapRadiusZ;
if (arg.startMapIndex.x < 0 && arg.startMapIndex.y < 0)
{
if (centerTerrain.Left() != null)
{
height += arg.startMapIndex.y;
arg.startMapIndex.y = 0;
arg.startMapIndex.x += heightMapRes;
centerTerrain = centerTerrain.Left();
}
else if (centerTerrain.Bottom() != null)
{
width += arg.startMapIndex.x;
arg.startMapIndex.x = 0;
arg.startMapIndex.y += heightMapRes;
centerTerrain = centerTerrain.Bottom();
}
else
{
width += arg.startMapIndex.x;
arg.startMapIndex.x = 0;
height += arg.startMapIndex.y;
arg.startMapIndex.y = 0;
}
}
else if (arg.startMapIndex.x < 0)
{
width += arg.startMapIndex.x;
arg.startMapIndex.x = 0;
}
else if (arg.startMapIndex.y < 0)
{
height += arg.startMapIndex.y;
arg.startMapIndex.y = 0;
}
arg.heightMap = GetHeightMap(centerTerrain, arg.startMapIndex.x, arg.startMapIndex.y, width, height);
return(true);
}
return(false);
}
