public override void Update(GameTime gameTime)
{
// Check if we reached way point.
Vector2 vertex = _path[_currentVertexIdx];
if ((GameObject.Position - vertex).Length() <= _threshold && IsMoving)
{
if (IsPatroling)
{ // If patroling the next waypoint after the last is the first waypoint
_currentVertexIdx = (_currentVertexIdx + 1) % _path.Length;
}
else
{
// Stop at last way point.
if (_currentVertexIdx == _path.Length - 1)
{
if (OnFinishedPath != null)
{
OnFinishedPath();
}
IsMoving = false;
}
else
{
_currentVertexIdx = _currentVertexIdx + 1;
}
}
// Calculate direction
if (_path[_currentVertexIdx] != vertex)
{
_currentVelocity = ConvertUnits.ToSimUnits(Vector2.Normalize(_path[_currentVertexIdx] - vertex) * Speed);
}
else
{
_currentVelocity = Vector2.Zero;
}
}
// Move towards current vertex.
if (IsMoving)
{
// setPosition(GameObject.Position + _currentMovementDirection * (float)gameTime.ElapsedGameTime.TotalSeconds);
_physics.SetVelocity(_currentVelocity);
}
else
{
_physics.SetVelocity(Vector2.Zero);
}
}
public override void Start()
{
if (Sprite != null)
{
var texture = AddComponent <TextureComponent>();
texture.Texture = Sprite;
texture.Start();
}
_physics = AddComponent <PhysicsComponent>();
var vertices = new List <Vector2>(4);
vertices.Add(GameObject.Position + new Vector2(-10, -10));
vertices.Add(GameObject.Position + new Vector2(10, -10));
vertices.Add(GameObject.Position + new Vector2(10, 10));
vertices.Add(GameObject.Position + new Vector2(-10, 10));
_physics.Polygon = vertices;
_physics.Friction = 0.0f;
_physics.Restitution = 0.6f;
_physics.Mass = 1f;
_physics.IsStatic = false;
_physics.IsProjectile = true;
_physics.IgnoreGravity = true;
_physics.Start();
var velocity = new Vector2(Velocity * (float)Math.Cos(Angle), Velocity * (float)Math.Sin(Angle));
_physics.SetVelocity(velocity);
// Hook up events.
_physics.OnCollision += onCollision;
}