public bool CanMoveInDirection(GhostDirection direction)
{
bool result = true;
GhostDirection currentDirection = direction;
for (int r = 0; r < GameEngine.backLayer.Rows; r++)
{
for (int c = 0; c < GameEngine.backLayer.Columns; c++)
{
if (GameEngine.backLayer.TileObject[c, r] == null)
{
continue;
}
if (GameEngine.backLayer.TileObject[c, r].IsWall == true)
{
Sprite wall = GameEngine.backLayer.TileObject[c, r].Sprite;
switch (currentDirection)
{
case GhostDirection.Up:
result = !wall.IsCollidingWithRectangleBased(DetectU);
break;
case GhostDirection.Down:
result = !wall.IsCollidingWithRectangleBased(DetectD);
break;
case GhostDirection.Left:
result = !wall.IsCollidingWithRectangleBased(DetectL);
break;
case GhostDirection.Right:
result = !wall.IsCollidingWithRectangleBased(DetectR);
break;
}
if (result == false)
{
break;
}
} //if
} //for
if (result == false)
{
break;
}
}//for
return(result);
}
void ChooseTheFirtDirection()
{
int rand = Random.Range(0, 2);
if (rand == 0)
{
ghostDirection = GhostDirection.Left;
}
if (rand == 1)
{
ghostDirection = GhostDirection.Right;
}
}
public bool Move()
{
bool result = false;
//if can move in next direction
if (CanMoveInDirection(ghostNextDirection) == true)
{
ghostDirection = ghostNextDirection; //set current direction
}
//can move in direction
if (CanMoveInDirection(ghostDirection) == false)
{
return(false);
}
int x = base.Location.X;
int y = base.Location.Y;
switch (ghostDirection)
{
case GhostDirection.Up:
y -= ghostSpeed;
if (isChasing == true)
{
base.CurrentFrame = FrameU;
}
else
{
base.CurrentFrame = FrameScared;
}
break;
case GhostDirection.Down:
y += ghostSpeed;
if (isChasing == true)
{
base.CurrentFrame = FrameD;
}
else
{
base.CurrentFrame = FrameScared;
}
break;
case GhostDirection.Left:
x -= ghostSpeed;
if (isChasing == true)
{
base.CurrentFrame = FrameL;
}
else
{
base.CurrentFrame = FrameScared;
}
break;
case GhostDirection.Right:
x += ghostSpeed;
if (isChasing == true)
{
base.CurrentFrame = FrameR;
}
else
{
base.CurrentFrame = FrameScared;
}
break;
case GhostDirection.None:
break;
}
base.Location = new Point(x, y);
SetProximityDetectionRectangles(); //set detection rectangles location
return(result);
}
private Vector3 ChooseDirection()
{
Vector3 Direction = new Vector3();
RaycastHit2D hitup;
RaycastHit2D hitleft;
RaycastHit2D hitdown;
RaycastHit2D hitright;
switch (ghostDirection)
{
case GhostDirection.Up:
hitup = Physics2D.Raycast(transform.position, Vector2.up, 0.5f, Wallsmask);
if (hitup.collider == null)
{
ghostDirection = GhostDirection.Up;
return(new Vector3(0.0f, 1.0f));
}
break;
case GhostDirection.Right:
hitright = Physics2D.Raycast(transform.position, Vector2.right, 0.5f, Wallsmask);
if (hitright.collider == null)
{
ghostDirection = GhostDirection.Right;
return(new Vector3(1.0f, 0.0f));
}
break;
case GhostDirection.Down:
hitdown = Physics2D.Raycast(transform.position, Vector2.down, 0.5f, Wallsmask);
if (hitdown.collider == null)
{
ghostDirection = GhostDirection.Down;
return(new Vector3(0.0f, -1.0f));
}
break;
case GhostDirection.Left:
hitleft = Physics2D.Raycast(transform.position, Vector2.left, 0.5f, Wallsmask);
if (hitleft.collider == null)
{
ghostDirection = GhostDirection.Left;
return(new Vector3(-1.0f, 0.0f));
}
break;
}
AvailableDirections.TrimExcess();
AvailableDirections.Clear();
hitup = Physics2D.Raycast(transform.position, Vector2.up, 1.0f, Wallsmask);
if (hitup.collider == null)
{
AvailableDirections.Add("Up");
}
hitleft = Physics2D.Raycast(transform.position, Vector2.left, 1.0f, Wallsmask);
if (hitleft.collider == null)
{
AvailableDirections.Add("Left");
}
hitdown = Physics2D.Raycast(transform.position, Vector2.down, 1.0f, Wallsmask);
if (hitdown.collider == null)
{
AvailableDirections.Add("Down");
}
hitright = Physics2D.Raycast(transform.position, Vector2.right, 1.0f, Wallsmask);
if (hitright.collider == null)
{
AvailableDirections.Add("Right");
}
int SelectedDirection = Random.Range(0, AvailableDirections.Count);
if (AvailableDirections[SelectedDirection] == "Up")
{
ghostDirection = GhostDirection.Up;
Direction = new Vector3(0.0f, 1.0f);
}
if (AvailableDirections[SelectedDirection] == "Left")
{
ghostDirection = GhostDirection.Left;
Direction = new Vector3(-1.0f, 0.0f);
}
if (AvailableDirections[SelectedDirection] == "Down")
{
ghostDirection = GhostDirection.Down;
Direction = new Vector3(0.0f, -1.0f);
}
if (AvailableDirections[SelectedDirection] == "Right")
{
ghostDirection = GhostDirection.Right;
Direction = new Vector3(1.0f, 0.0f);
}
return(Direction);
}