public static bool LineOfSight(IntVec3 start, IntVec3 end, Map map, bool skipFirstCell = false, Func <IntVec3, bool> validator = null, int halfXOffset = 0, int halfZOffset = 0)
{
if (!start.InBounds(map) || !end.InBounds(map))
{
return(false);
}
bool flag;
if (start.x == end.x)
{
flag = (start.z < end.z);
}
else
{
flag = (start.x < end.x);
}
int num = Mathf.Abs(end.x - start.x);
int num2 = Mathf.Abs(end.z - start.z);
int num3 = start.x;
int num4 = start.z;
int i = 1 + num + num2;
int num5 = (end.x <= start.x) ? -1 : 1;
int num6 = (end.z <= start.z) ? -1 : 1;
num *= 4;
num2 *= 4;
num += halfXOffset * 2;
num2 += halfZOffset * 2;
int num7 = num / 2 - num2 / 2;
IntVec3 intVec = default(IntVec3);
while (i > 1)
{
intVec.x = num3;
intVec.z = num4;
if (!skipFirstCell || !(intVec == start))
{
if (!intVec.CanBeSeenOverFast(map))
{
return(false);
}
if (validator != null && !validator(intVec))
{
return(false);
}
}
if (num7 > 0 || (num7 == 0 && flag))
{
num3 += num5;
num7 -= num2;
}
else
{
num4 += num6;
num7 += num;
}
i--;
}
return(true);
}
public static bool LineOfSight(IntVec3 start, IntVec3 end, Map map, CellRect startRect, CellRect endRect, Func <IntVec3, bool> validator = null)
{
if (!start.InBounds(map) || !end.InBounds(map))
{
return(false);
}
bool flag = (start.x != end.x) ? (start.x < end.x) : (start.z < end.z);
int num = Mathf.Abs(end.x - start.x);
int num2 = Mathf.Abs(end.z - start.z);
int num3 = start.x;
int num4 = start.z;
int num5 = 1 + num + num2;
int num6 = (end.x > start.x) ? 1 : (-1);
int num7 = (end.z > start.z) ? 1 : (-1);
int num8 = num - num2;
num *= 2;
num2 *= 2;
IntVec3 intVec = default(IntVec3);
while (num5 > 1)
{
intVec.x = num3;
intVec.z = num4;
if (endRect.Contains(intVec))
{
return(true);
}
if (!startRect.Contains(intVec))
{
if (!intVec.CanBeSeenOverFast(map))
{
return(false);
}
if (validator != null && !validator(intVec))
{
return(false);
}
}
if (num8 > 0 || (num8 == 0 && flag))
{
num3 += num6;
num8 -= num2;
}
else
{
num4 += num7;
num8 += num;
}
num5--;
}
return(true);
}
private bool IsGoodExitCell(IntVec3 cell)
{
if (!cell.CanBeSeenOver(this.map))
{
return(false);
}
int num = GenRadial.NumCellsInRadius(2f);
for (int i = 0; i < num; i++)
{
IntVec3 intVec = cell + GenRadial.RadialPattern[i];
if (intVec.InBounds(this.map) && intVec.OnEdge(this.map) && intVec.CanBeSeenOverFast(this.map) && GenSight.LineOfSight(cell, intVec, this.map, false, null, 0, 0))
{
return(true);
}
}
return(false);
}
private static void CalculateNeededLOSToCells(IntVec3 position, Map map, float direction, out IntVec3?needLOSToCell1, out IntVec3?needLOSToCell2)
{
needLOSToCell1 = null;
needLOSToCell2 = null;
if (position.CanBeSeenOverFast(map))
{
return;
}
direction = GenMath.PositiveMod(direction, 360f);
IntVec3 intVec = position;
intVec.z++;
IntVec3 intVec2 = position;
intVec2.z--;
IntVec3 intVec3 = position;
intVec3.x--;
IntVec3 intVec4 = position;
intVec4.x++;
if (direction < 90f)
{
if (intVec3.InBounds(map) && intVec3.CanBeSeenOverFast(map))
{
needLOSToCell1 = intVec3;
}
if (intVec.InBounds(map) && intVec.CanBeSeenOverFast(map))
{
needLOSToCell2 = intVec;
}
}
else if (direction < 180f)
{
if (intVec.InBounds(map) && intVec.CanBeSeenOverFast(map))
{
needLOSToCell1 = intVec;
}
if (intVec4.InBounds(map) && intVec4.CanBeSeenOverFast(map))
{
needLOSToCell2 = intVec4;
}
}
else if (direction < 270f)
{
if (intVec4.InBounds(map) && intVec4.CanBeSeenOverFast(map))
{
needLOSToCell1 = intVec4;
}
if (intVec2.InBounds(map) && intVec2.CanBeSeenOverFast(map))
{
needLOSToCell2 = intVec2;
}
}
else
{
if (intVec2.InBounds(map) && intVec2.CanBeSeenOverFast(map))
{
needLOSToCell1 = intVec2;
}
if (intVec3.InBounds(map) && intVec3.CanBeSeenOverFast(map))
{
needLOSToCell2 = intVec3;
}
}
}
public static bool LineOfSight(IntVec3 start, IntVec3 end, Map map, CellRect startRect, CellRect endRect, Func <IntVec3, bool> validator = null)
{
bool result;
if (!start.InBounds(map) || !end.InBounds(map))
{
result = false;
}
else
{
bool flag;
if (start.x == end.x)
{
flag = (start.z < end.z);
}
else
{
flag = (start.x < end.x);
}
int num = Mathf.Abs(end.x - start.x);
int num2 = Mathf.Abs(end.z - start.z);
int num3 = start.x;
int num4 = start.z;
int i = 1 + num + num2;
int num5 = (end.x <= start.x) ? -1 : 1;
int num6 = (end.z <= start.z) ? -1 : 1;
int num7 = num - num2;
num *= 2;
num2 *= 2;
IntVec3 intVec = default(IntVec3);
while (i > 1)
{
intVec.x = num3;
intVec.z = num4;
if (endRect.Contains(intVec))
{
return(true);
}
if (!startRect.Contains(intVec))
{
if (!intVec.CanBeSeenOverFast(map))
{
return(false);
}
if (validator != null && !validator(intVec))
{
return(false);
}
}
if (num7 > 0 || (num7 == 0 && flag))
{
num3 += num5;
num7 -= num2;
}
else
{
num4 += num6;
num7 += num;
}
i--;
}
result = true;
}
return(result);
}
