bool IsMapBlocking(GameEntityInstance other, Point2D location, byte bit)
{
throw new NotImplementedException();
byte val = 0; // Requires the world member
if ((val & bit) != 0)
{
return(true);
}
if ((val & 16) != 0)
{
return(true);
}
if ((val & 32) != 0)
{
return(true);
}
// val & 64 and type
throw new NotImplementedException();
return(false);
}
bool IsNextTo(GameEntityInstance other)
{
Point2D?currentLocation = Location;
while (currentLocation != other.Location)
{
currentLocation = NextStep((Point2D)currentLocation, other);
if (currentLocation == null)
{
return(false);
}
}
return(true);
}
public Point2D?NextStep(Point2D myLocation, GameEntityInstance other)
{
if (myLocation == other.Location)
{
return(myLocation);
}
Point2D newLocation = myLocation;
bool myXblocked = false;
bool myYblocked = false;
if (myLocation.X > other.Location.X)
{
// Check right tiles left wall
myXblocked = IsBlocking(other, new Point2D(myLocation.X - 1, myLocation.Y), 8);
newLocation.X = myLocation.X - 1;
}
else if (myLocation.X < other.Location.X)
{
// Check left tiles right wall
myXblocked = IsBlocking(other, new Point2D(myLocation.X + 1, myLocation.Y), 2);
newLocation.X = myLocation.X + 1;
}
if (myLocation.Y > other.Location.Y)
{
// Check top tiles bottom wall
myYblocked = IsBlocking(other, new Point2D(myLocation.X, myLocation.Y - 1), 4);
newLocation.Y = myLocation.Y - 1;
}
else if (myLocation.Y < other.Location.Y)
{
// Check bottom tiles top wall
myYblocked = IsBlocking(other, new Point2D(myLocation.X, myLocation.Y + 1), 1);
newLocation.Y = myLocation.Y + 1;
}
// If both directions are blocked OR we are going straight and the direction is blocked
if ((myXblocked && myYblocked) ||
(myXblocked && myLocation.Y == newLocation.Y) ||
(myYblocked && myLocation.X == newLocation.X))
{
return(null);
}
bool newXblocked = false;
bool newYblocked = false;
if (newLocation.X > myLocation.X)
{
// Check destination tiles right wall
newXblocked = IsBlocking(other, newLocation, 2);
}
else if (newLocation.X < myLocation.X)
{
// Check destination tiles left wall
newXblocked = IsBlocking(other, newLocation, 8);
}
if (newLocation.Y > myLocation.Y)
{
// Check destination tiles top wall
newYblocked = IsBlocking(other, newLocation, 1);
}
else if (newLocation.Y < myLocation.Y)
{
// Check destination tiles bottom wall
newYblocked = IsBlocking(other, newLocation, 4);
}
// If both directions are blocked OR we are going straing and the direction is blocked
if ((newXblocked && newYblocked) ||
(newXblocked && myLocation.Y == newLocation.Y) ||
(myYblocked && myLocation.X == newLocation.X)) // TODO: Check: myYblocked or newYblocked
{
return(null);
}
// If only one direction is blocked, but it blocks both tiles
if ((myXblocked && newXblocked) ||
(myYblocked && newYblocked))
{
return(null);
}
return(newLocation);
}
public bool IsWithinRange(GameEntityInstance other, int radius)
{
return(IsWithinRange(other.Location, radius));
}
bool IsObjectBlocking(GameEntityInstance other, Point2D location, byte bit)
{
throw new NotImplementedException();
}
bool IsBlocking(GameEntityInstance other, Point2D location, int bit)
{
return(IsMapBlocking(other, location, (byte)bit));
}