void Turn()
{
if (SetHeadingIfExists(pattern))
{
return;
}
if (pattern != PatrollerPattern.TurnLeft)
{
if (SetHeadingIfExists(PatrollerPattern.TurnLeft))
{
pattern = PatrollerPattern.TurnLeft;
return;
}
}
if (pattern != PatrollerPattern.TurnRight)
{
if (SetHeadingIfExists(PatrollerPattern.TurnRight))
{
pattern = PatrollerPattern.TurnRight;
return;
}
}
if (pattern != PatrollerPattern.Bounce)
{
if (SetHeadingIfExists(PatrollerPattern.Bounce))
{
return;
}
}
}
bool SetHeadingIfExists(PatrollerPattern pattern)
{
Vector2Int nextHeading = GetTurnHeading(pattern);
if (location.GetNeighbour(nextHeading))
{
if (heading != nextHeading)
{
SetWalkAnimFromHeading(nextHeading);
}
heading = nextHeading;
return(true);
}
return(false);
}
Vector2Int GetTurnHeading(PatrollerPattern pattern)
{
switch (pattern)
{
case PatrollerPattern.TurnLeft:
return(new Vector2Int(-heading.y, heading.x));
case PatrollerPattern.TurnRight:
return(new Vector2Int(heading.y, -heading.x));
case PatrollerPattern.Bounce:
return(new Vector2Int(-heading.x, -heading.y));
}
throw new System.Exception("Illegal turn pattern");
}
