public static Unit CollideCheck(Unit unit, PointF vector)
{
for (int i = 0; i < _units.Count; i++)
{
if (_units[i] != unit)
{
double length = GameMath.Distance(_units[i].Position, GameMath.Add(unit.Position, vector));
double radiusAnd = _units[i].Radius + unit.Radius;
if (length <= radiusAnd)
{
return(_units[i]);
}
}
}
return(null);
}
private PointF GetMoveDirection(PointF vector, PointF destination)
{
Unit frontUnit = Map.CollideCheck(this, vector);
if (frontUnit == null)
{
return(vector);
}
else
{
PointF vectorLeft = new PointF(vector.Y, -vector.X);
PointF vectorRight = new PointF(-vector.Y, vector.X);
Unit LeftUnit = Map.CollideCheck(this, vectorLeft);
Unit RightUnit = Map.CollideCheck(this, vectorRight);
float distanceLeft = GameMath.Distance(GameMath.Add(_position, vectorLeft), destination);
float distanceRight = GameMath.Distance(GameMath.Add(_position, vectorRight), destination);
if (LeftUnit == null && RightUnit == null)
{
if (distanceLeft <= distanceRight)
{
return(vectorLeft);
}
else
{
return(vectorRight);
}
}
else if (LeftUnit == null)
{
return(vectorLeft);
}
else if (RightUnit == null)
{
return(vectorRight);
}
else
{
return(PointF.Empty);
}
}
}
/*public void Move(PointF destination)
* {
* float distance = GameMath.Distance(_position, destination);
* if (distance < _moveSpeed || distance > _oldDistance)
* Stop();
* //_oldDistance = distance;
* PointF vector = GameMath.Normalize(new PointF(destination.X - _position.X, destination.Y - _position.Y));
* vector = GameMath.Multiply(vector, _moveSpeed);
* Translate(vector);
* }*/
public void Translate(PointF vector)
{
_position = GameMath.Add(_position, vector);
}
public Point ScreenToPoint(Point point)
{
point = GameMath.Add(point, _position);
return(point);
}
