int SkipGarbage(string input, int start)
{
var offset = start + 1;
while (true)
{
if (offset == input.Length)
{
Oh.Bollocks();
}
switch (input[offset])
{
case '>':
removeCharacters += (offset - start) - 1;
return(offset - start);
case '!':
removeCharacters -= 2;
offset += 2;
break;
default:
offset++;
break;
}
}
}
GridWriter CreateWriter(string pattern)
{
return((grid, x, y) =>
{
var cX = x;
var cY = y;
foreach (var c in pattern)
{
switch (c)
{
case '.':
grid[cX++, cY] = false;
break;
case '#':
grid[cX++, cY] = true;
break;
case '/':
cX = x;
cY++;
break;
default:
Oh.Bollocks();
break;
}
}
});
}
string FollowPath(Map map, int entryPoint, out int numSteps)
{
var result = "";
var x = entryPoint;
var y = 0;
var dX = 0;
var dY = 1;
numSteps = 0;
while (true)
{
var c = map.GetCell(x, y);
switch (c)
{
case '|':
case '-':
break;
case '+':
ChangeDirection(map, x, y, ref dX, ref dY);
break;
case ' ':
return(result);
default:
if (IsLetter(c))
{
result += c;
}
else
{
Oh.Bollocks();
}
break;
}
x += dX;
y += dY;
numSteps++;
}
}
