/// <summary>
/// Changes PacMan's position to a new valid position
/// </summary>
/// <param name="dataGrid"></param>
public void Move(Grid dataGrid)
{
//checks to see if pacman is aligned with a cell
if ((location.X % IMAGE_SIZE == 0) && (location.Y % IMAGE_SIZE == 0))
{
Point location_cellIndex;
location_cellIndex = new Point((location.X / IMAGE_SIZE), (location.Y / IMAGE_SIZE));
Point attemptedLocation = location_cellIndex;
//defines the location the user is attempting to move to
switch (attemptedDirection)
{
case Direction.Up:
attemptedLocation.Y--;
break;
case Direction.Left:
attemptedLocation.X--;
break;
case Direction.Right:
attemptedLocation.X++;
break;
case Direction.Down:
attemptedLocation.Y++;
break;
default:
break;
}
//checks to see if the next cell in the direction pacman wants to go in is valid
if (dataGrid.CheckForWall(attemptedLocation) == false)
{
direction = attemptedDirection;
imageToggle++;
imageToggle %= ANIMATION_FRAMES;
}
attemptedLocation = location_cellIndex;
//attempted direction shift was unsuccessful, so instead pacman carries on the way he was going
switch (direction)
{
case Direction.Up:
attemptedLocation.Y--;
break;
case Direction.Left:
attemptedLocation.X--;
break;
case Direction.Right:
attemptedLocation.X++;
break;
case Direction.Down:
attemptedLocation.Y++;
break;
default:
break;
}
if (dataGrid.CheckForWall(attemptedLocation) == false)
{
switch (direction)
{
case Direction.Up:
location.Y -= speed;
break;
case Direction.Left:
location.X -= speed;
break;
case Direction.Right:
location.X += speed;
break;
case Direction.Down:
location.Y += speed;
break;
default:
break;
}
imageToggle++;
imageToggle %= ANIMATION_FRAMES;
}
}
else
{
switch (direction)
{
case Direction.Up:
location.Y -= speed;
break;
case Direction.Left:
location.X -= speed;
break;
case Direction.Right:
location.X += speed;
break;
case Direction.Down:
location.Y += speed;
break;
default:
break;
}
imageToggle++;
imageToggle %= ANIMATION_FRAMES;
}
}
/// <summary>
/// Randomises the direction the ghost moves in.
/// Specifies that a ghost should not move in the opposite direction of the one he's currently moving in.
/// </summary>
/// <param name="rand"></param>
/// <param name="dataGrid"></param>
public void RandomiseDirection(Random rand, Grid dataGrid)
{
int nPossibleDirections = Enum.GetNames(typeof(Direction)).Length;
Direction tempDirection = (Direction)rand.Next(nPossibleDirections);
Point attemptedLocation = GetNextLocation(tempDirection);
//while the direction randomised is the opposite direction of the one he's currently moving in, randomise again.
while (((int)tempDirection == (((int)direction + 2) % nPossibleDirections)) || (dataGrid.CheckForWall(attemptedLocation) == true))
{
tempDirection = (Direction)rand.Next(nPossibleDirections);
attemptedLocation = GetNextLocation(tempDirection);
}
direction = tempDirection;
}
/// <summary>
/// Randomises the direction the ghost moves in.
/// Specifies that a ghost should not move in the opposite direction of the one he's currently moving in.
/// </summary>
/// <param name="rand"></param>
/// <param name="dataGrid"></param>
public void RandomiseDirection(Random rand, Grid dataGrid)
{
int nPossibleDirections = Enum.GetNames(typeof(Direction)).Length;
Direction tempDirection = (Direction)rand.Next(nPossibleDirections);
Point attemptedLocation = GetNextLocation(tempDirection);
//while the direction randomised is the opposite direction of the one he's currently moving in, randomise again.
while (((int)tempDirection == (((int)direction + 2) % nPossibleDirections)) || (dataGrid.CheckForWall(attemptedLocation) == true))
{
tempDirection = (Direction)rand.Next(nPossibleDirections);
attemptedLocation = GetNextLocation(tempDirection);
}
direction = tempDirection;
}
/// <summary>
/// Changes PacMan's position to a new valid position
/// </summary>
/// <param name="dataGrid"></param>
public void Move(Grid dataGrid)
{
//checks to see if pacman is aligned with a cell
if ((location.X % IMAGE_SIZE == 0) && (location.Y % IMAGE_SIZE == 0))
{
Point location_cellIndex;
location_cellIndex = new Point((location.X / IMAGE_SIZE), (location.Y / IMAGE_SIZE));
Point attemptedLocation = location_cellIndex;
//defines the location the user is attempting to move to
switch (attemptedDirection)
{
case Direction.Up:
attemptedLocation.Y--;
break;
case Direction.Left:
attemptedLocation.X--;
break;
case Direction.Right:
attemptedLocation.X++;
break;
case Direction.Down:
attemptedLocation.Y++;
break;
default:
break;
}
//checks to see if the next cell in the direction pacman wants to go in is valid
if (dataGrid.CheckForWall(attemptedLocation) == false)
{
direction = attemptedDirection;
imageToggle++;
imageToggle %= ANIMATION_FRAMES;
}
attemptedLocation = location_cellIndex;
//attempted direction shift was unsuccessful, so instead pacman carries on the way he was going
switch (direction)
{
case Direction.Up:
attemptedLocation.Y--;
break;
case Direction.Left:
attemptedLocation.X--;
break;
case Direction.Right:
attemptedLocation.X++;
break;
case Direction.Down:
attemptedLocation.Y++;
break;
default:
break;
}
if (dataGrid.CheckForWall(attemptedLocation) == false)
{
switch (direction)
{
case Direction.Up:
location.Y -= speed;
break;
case Direction.Left:
location.X -= speed;
break;
case Direction.Right:
location.X += speed;
break;
case Direction.Down:
location.Y += speed;
break;
default:
break;
}
imageToggle++;
imageToggle %= ANIMATION_FRAMES;
}
}
else
{
switch (direction)
{
case Direction.Up:
location.Y -= speed;
break;
case Direction.Left:
location.X -= speed;
break;
case Direction.Right:
location.X += speed;
break;
case Direction.Down:
location.Y += speed;
break;
default:
break;
}
imageToggle++;
imageToggle %= ANIMATION_FRAMES;
}
}