private void Constrain(
bool exitEast,
bool exitNorth,
bool exitWest,
bool exitSouth,
System.Random r)
{
_constraintState.Init();
// left cage
_constraintState.ConstrainLoc(3, 3, 11);
// right cage
_constraintState.ConstrainLoc(4, 3, 12);
if (exitEast)
{
// pick a loc with x=7, open East
var y = r.Next(8);
_constraintState.SetWall(7, y, MovementDirection.EAST, IsWall.NO);
}
if (exitWest)
{
// pick a loc with x=0, open West
var y = r.Next(8);
_constraintState.SetWall(0, y, MovementDirection.WEST, IsWall.NO);
}
if (exitNorth)
{
// pick a loc with y=0, open North
var x = r.Next(8);
_constraintState.SetWall(x, 0, MovementDirection.NORTH, IsWall.NO);
}
if (exitSouth)
{
// pick a loc with y=7, open South
var x = r.Next(8);
_constraintState.SetWall(x, 7, MovementDirection.SOUTH, IsWall.NO);
}
MakeEmptyBox(0, 0, 7, 7);
MakeEmptyBox(1, 1, 6, 6);
MakeEmptyBox(2, 2, 5, 5);
MakeEnclosingBox(1, 1, 6, 6);
MakeEnclosingBox(2, 2, 5, 5);
switch (_randomGenerator.Next(4))
{
case 0:
_constraintState.ConstrainLoc(3, 4, 3);
_constraintState.ConstrainLoc(4, 4, 2);
break;
case 1:
_constraintState.ConstrainLoc(3, 4, 2);
_constraintState.ConstrainLoc(4, 4, 3);
break;
case 2:
_constraintState.ConstrainLoc(3, 4, 6);
_constraintState.ConstrainLoc(4, 4, 6);
break;
case 3:
_constraintState.ConstrainLoc(3, 4, 9);
_constraintState.ConstrainLoc(4, 4, 9);
break;
}
var ory = _randomGenerator.Next(1, 4);
_constraintState.SetWall(0, ory, MovementDirection.EAST, IsWall.NO);
_constraintState.SetWall(7, ory, MovementDirection.WEST, IsWall.NO);
_constraintState.SetWall(0, 7 - ory, MovementDirection.EAST, IsWall.NO);
_constraintState.SetWall(7, 7 - ory, MovementDirection.WEST, IsWall.NO);
var orx = _randomGenerator.Next(1, 4);
_constraintState.SetWall(orx, 0, MovementDirection.SOUTH, IsWall.NO);
_constraintState.SetWall(orx, 7, MovementDirection.NORTH, IsWall.NO);
_constraintState.SetWall(7 - orx, 0, MovementDirection.SOUTH, IsWall.NO);
_constraintState.SetWall(7 - orx, 7, MovementDirection.NORTH, IsWall.NO);
var irx = _randomGenerator.Next(2, 4);
_constraintState.SetWall(irx, 1, MovementDirection.SOUTH, IsWall.NO);
_constraintState.SetWall(irx, 6, MovementDirection.NORTH, IsWall.NO);
_constraintState.SetWall(7 - irx, 1, MovementDirection.SOUTH, IsWall.NO);
_constraintState.SetWall(7 - irx, 6, MovementDirection.NORTH, IsWall.NO);
_constraintState.Tighten();
}
private void AddInitialConstraintState(
bool exitEast,
bool exitNorth,
bool exitWest,
bool exitSouth,
System.Random r)
{
var s = new ConstraintState();
s.Init();
// left cage
s.ConstrainLoc(3, 3, 11);
// right cage
s.ConstrainLoc(4, 3, 12);
if (exitEast)
{
// pick a loc with x=7, open East
var y = r.Next(8);
s.SetWall(7, y, MovementDirection.EAST, IsWall.NO);
if (_lrSymmetry)
{
// and then with x = 0, open West
s.SetWall(0, y, MovementDirection.WEST, IsWall.NO);
}
}
else if (exitWest)
{
// pick a loc with x=0, open West
var y = r.Next(8);
s.SetWall(0, y, MovementDirection.WEST, IsWall.NO);
}
if (exitNorth)
{
// pick a loc with y=0, open North
Debug.Log("Opening exit to North");
var x = r.Next(8);
s.SetWall(x, 0, MovementDirection.NORTH, IsWall.NO);
}
if (exitSouth)
{
Debug.Log("Opening new exit to South");
// pick a loc with y=7, open South
var x = r.Next(8);
s.SetWall(x, 7, MovementDirection.SOUTH, IsWall.NO);
}
s.Tighten();
if (!s.IsOverTight())
{
_constraintStates.Add(s);
}
}