public void MoveTowards(CGPoint position, double timeInterval)
{
CGPoint curPosition = Position;
var dx = position.X - curPosition.X;
var dy = position.Y - curPosition.Y;
var ds = MovementSpeed * (float)timeInterval;
var angle = GraphicsUtilities.RadiansBetweenCGPoints(position, curPosition);
angle = GraphicsUtilities.PalarAdjust(angle);
ZRotation = angle;
var distRemaining = GraphicsUtilities.Hypotenuse(dx, dy);
if (distRemaining < ds)
{
Position = position;
}
else
{
var x = (float)(curPosition.X - Math.Sin(angle) * ds);
var y = (float)(curPosition.Y + Math.Cos(angle) * ds);
Position = new CGPoint(x, y);
}
RequestedAnimation = AnimationState.Walk;
}
public void MoveInDirection(CGPoint direction, double timeInterval)
{
var curPosition = Position;
var dx = MovementSpeed * direction.X;
var dy = MovementSpeed * direction.Y;
var ds = MovementSpeed * (float)timeInterval;
var targetPosition = new CGPoint(curPosition.X + dx, curPosition.Y + dy);
var angle = GraphicsUtilities.RadiansBetweenCGPoints(targetPosition, curPosition);
var ang = GraphicsUtilities.PalarAdjust(angle);
ZRotation = ang;
var distRemaining = GraphicsUtilities.Hypotenuse(dx, dy);
if (distRemaining < ds)
{
Position = targetPosition;
}
else
{
float x = (float)(curPosition.X - Math.Sin(ang) * ds);
float y = (float)(curPosition.Y + Math.Cos(ang) * ds);
Position = new CGPoint(x, y);
}
// Don't change to a walk animation if we planning an attack.
if (!Attacking)
{
RequestedAnimation = AnimationState.Walk;
}
}
public void FaceTo(CGPoint position)
{
var angle = GraphicsUtilities.RadiansBetweenCGPoints(position, Position);
var ang = GraphicsUtilities.PalarAdjust(angle);
SKAction action = SKAction.RotateToAngle(ang, 0);
RunAction(action);
}
