public void ChangePosition(GridPoint oldPos, GridPoint newPos)
{
if (_positions.Contains(oldPos))
{
_positions.Remove(oldPos);
_positions.Add(newPos);
}
}
public static HashSet<GridPoint> CreateCircle(GridPoint center, int radius, bool filled = false)
{
var points = new HashSet<GridPoint>();
points.Add(new GridPoint(center.X + radius, center.Y));
points.Add(new GridPoint(center.X - radius, center.Y));
points.Add(new GridPoint(center.X, center.Y + radius));
points.Add(new GridPoint(center.X, center.Y - radius));
if (filled)
for (var i = center.X - radius + 1; i < center.X + radius; i++)
points.Add(new GridPoint(i, center.Y));
var x = 0;
var y = radius;
var ddfX = 1;
var ddfY = -2*radius;
var f = 1 - radius;
while (x < y)
{
if (f >= 0)
{
y -= 1;
ddfY += 2;
f += ddfY;
}
x += 1;
ddfX += 2;
f += ddfX;
points.Add(new GridPoint(center.X + x, center.Y + y));
points.Add(new GridPoint(center.X - x, center.Y + y));
if (filled)
for (var i = center.X - x + 1; i < center.X + x; i++)
points.Add(new GridPoint(i, center.Y + y));
points.Add(new GridPoint(center.X + x, center.Y - y));
points.Add(new GridPoint(center.X - x, center.Y - y));
if (filled)
for (var i = center.X - x + 1; i < center.X + x; i++)
points.Add(new GridPoint(i, center.Y - y));
points.Add(new GridPoint(center.X + y, center.Y + x));
points.Add(new GridPoint(center.X - y, center.Y + x));
if (filled)
for (var i = center.X - y + 1; i < center.X + y; i++)
points.Add(new GridPoint(i, center.Y + x));
points.Add(new GridPoint(center.X + y, center.Y - x));
points.Add(new GridPoint(center.X - y, center.Y - x));
if (filled)
for (var i = center.X - y + 1; i < center.X + y; i++)
points.Add(new GridPoint(i, center.Y - x));
}
return points;
}
public void MoveEntity(Entity entity, GridPoint oldPos, GridPoint newPos, bool checkPassable = true)
{
var canMove = true;
if (checkPassable == true)
{
if (CanPassThroughSquare(entity, newPos) == false)
canMove = false;
}
if (canMove == true)
{
var pos = entity.Component<IPosition>();
pos.ChangePosition(oldPos, newPos);
GameState.DrawMap();
}
}
private GridPoint GetBuildCoords()
{
_buildPos = _buildPos.Add(_buildDelta);
return _buildPos;
}
public GridPoint Add(GridPoint point)
{
return new GridPoint(X + point.X, Y + point.Y);
}
public void ChangePosition(GridPoint oldPos, GridPoint newPos)
{
Coords = newPos;
}
public Position(GridPoint coords)
{
Coords = coords;
}
public Position(int x, int y)
{
Coords = new GridPoint(x, y);
}
public Position()
{
Coords = new GridPoint(0, 0);
}
public void ChangePosition(GridPoint oldPos, GridPoint newPos)
{
_xOffset = _basePosition.X - newPos.X;
_yOffset = _basePosition.Y - newPos.Y;
}
public RelativePosition(GridPoint basePosition, int xOffset, int yOffset)
{
_basePosition = basePosition;
_xOffset = xOffset;
_yOffset = yOffset;
}
private bool CanPassThroughSquare(Entity traveler, GridPoint pos)
{
var obstacles = from entity in _obstacles
where entity.Component<IPosition>().IsAtPosition(pos.X, pos.Y) && CanPass(traveler, entity) == false
select entity;
return !obstacles.Any();
}
// Not finished yet
private void GetMovementPath(Entity entity, GridPoint destination)
{
/*
var mob = entity.GetComponent<Mob>();
var pos = entity.GetComponent<Position>();
var blockedEntityCoords = from blocker in _obstacles
let obstacle = blocker.GetComponent<Obstacle>()
where CanPass(mob, obstacle) == false
select blocker.GetComponent<Position>();
//var blockedTileCoords = Singleton<GameState>.Instance.GetBlockedTileCoords(mob.MovementTypes);
//var blockedCoords = blockedEntityCoords.Union(blockedTileCoords);
*/
throw new NotImplementedException();
}
private void StartWindow(string name, int x, int y, int width, int height, Color color, int buffer)
{
_name = name;
_position = new GridPoint(x, y);
_size = new GridPoint(width, height);
_buffer = buffer;
_graphic.Color = color;
for (var i = 0; i < width; i++)
{
for (var j = 0; j < height; j++)
{
_positions.AddPosition(i + x, j + y);
if (i > buffer && i < width - buffer && j > buffer && j < width - buffer)
{
// Note that these are relative to the window, not the whole screen!
_freeSpots.Add(new GridPoint(i, j));
}
}
}
}