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using System;
using System.IO;
using UnityEngine;
namespace XUtliPoolLib
{
public sealed class XGrid
{
public int Width;
public int Height;
public float XMin;
public float ZMin;
public float XMax;
public float ZMax;
public float Side;
public int[] IdxData = null;
public float[] ValueData = null;
public bool LoadFile(string FileName)
{
XBinaryReader xbinaryReader = XSingleton<XResourceLoaderMgr>.singleton.ReadBinary(FileName, ".bytes", false, true);
try
{
this.Height = xbinaryReader.ReadInt32();
this.Width = xbinaryReader.ReadInt32();
this.XMin = xbinaryReader.ReadSingle();
this.ZMin = xbinaryReader.ReadSingle();
this.XMax = xbinaryReader.ReadSingle();
this.ZMax = xbinaryReader.ReadSingle();
this.Side = xbinaryReader.ReadSingle();
int num = xbinaryReader.ReadInt32();
this.IdxData = new int[num];
for (int i = 0; i < num; i++)
{
this.IdxData[i] = xbinaryReader.ReadInt32();
}
this.ValueData = new float[num];
for (int j = 0; j < num; j++)
{
short num2 = xbinaryReader.ReadInt16();
bool flag = num2 < 0;
if (flag)
{
this.ValueData[j] = -100f;
bool flag2 = j + 1 < num;
if (flag2)
{
bool flag3 = num2 == short.MinValue;
if (flag3)
{
num2 = 0;
}
else
{
num2 = (short) -num2;
}
this.ValueData[j + 1] = (float)num2;
j++;
}
}
else
{
this.ValueData[j] = (float)num2;
}
}
}
catch (EndOfStreamException ex)
{
XSingleton<XDebug>.singleton.AddErrorLog("read file ", FileName, " not complete :", ex.Message, null, null);
return false;
}
finally
{
XSingleton<XResourceLoaderMgr>.singleton.ClearBinary(xbinaryReader, false);
}
return true;
}
public bool TryGetHeight(Vector3 pos, out float y)
{
y = 0f;
int num = (int)((pos.z - this.ZMin) / this.Side);
int num2 = (int)((pos.x - this.XMin) / this.Side);
int key = num * this.Width + num2;
int index = this.GetIndex(key);
bool flag = index >= 0 && index < this.ValueData.Length;
bool result;
if (flag)
{
y = this.ValueData[index] / 100f;
result = true;
}
else
{
result = false;
}
return result;
}
public float GetHeight(Vector3 pos)
{
int num = (int)((pos.z - this.ZMin) / this.Side);
int num2 = (int)((pos.x - this.XMin) / this.Side);
int key = num * this.Width + num2;
int index = this.GetIndex(key);
bool flag = index < 0 || index >= this.ValueData.Length;
float result;
if (flag)
{
XSingleton<XDebug>.singleton.AddErrorLog2("error grid index:{0} pos:{1}", new object[]
{
index,
pos
});
result = -1f;
}
else
{
result = this.ValueData[index] / 100f;
}
return result;
}
private int GetIndex(int key)
{
int num = this.IdxData.Length;
int i = 0;
int num2 = num - 1;
while (i <= num2)
{
int num3 = i + num2 >> 1;
int num4 = this.IdxData[num3];
bool flag = key == num4;
if (flag)
{
return num3;
}
bool flag2 = key < num4;
if (flag2)
{
num2 = num3 - 1;
}
else
{
bool flag3 = key > num4;
if (flag3)
{
i = num3 + 1;
}
}
}
return num2;
}
public void Update()
{
}
}
}
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