public override void LoadContent(ContentManager cm, Scene scene, Layer layer)
{
var vertices = new List <Vector2>();
// Get centroid first
for (int i = 0; i < WorldPoints.Length; i++)
{
vertices.Add(ConvertUnits.ToSimUnits(WorldPoints[i]));
}
float area = GeometryFunctions.GetSignedArea(vertices);
if (area < 0)
{
vertices.Reverse();
}
Vector2 position = GeometryFunctions.GetCentroid(vertices);
position = position * layer.ScrollSpeed;
var gameObject = new GameObject(Name, ConvertUnits.ToDisplayUnits(position), scene, layer);
var physComponent = gameObject.AddComponent <PhysicsComponent>();
physComponent.Polygon = new List <Vector2>(WorldPoints);
physComponent.Mass = 10f;
physComponent.Restitution = 0.5f;
physComponent.Friction = 0.8f;
physComponent.IsStatic = PhysicsType != "Dynamic";
//gameObject.BagIndex = layer.GameObjects.Add(gameObject);
}
public override void Start()
{
// Convert Polygon to physic units.
var vertices = new List <Vector2>();
// Get centroid first
Polygon.ForEach((v) => { vertices.Add(ConvertUnits.ToSimUnits(v)); });
float area = GeometryFunctions.GetSignedArea(vertices);
if (area < 0)
{
vertices.Reverse();
}
Vector2 position = GeometryFunctions.GetCentroid(vertices);
GameObject.Position = ConvertUnits.ToDisplayUnits(position);
Polygon = vertices;
if (IsSensor)
{
_physics = new Sensor(GameObject.Scene.WorldInfo, ConvertUnits.ToSimUnits(GameObject.Position), Polygon);
}
else
{
if (IsStatic)
{
_physics = new StaticObject(GameObject.Scene.WorldInfo, ConvertUnits.ToSimUnits(GameObject.Position), Mass, Friction, Restitution, Polygon);
}
else
{
var dynamicObject = new DynamicObject(GameObject.Scene.WorldInfo, ConvertUnits.ToSimUnits(GameObject.Position), Mass, Friction, Restitution, Polygon);
dynamicObject.IgnoreGravity = IgnoreGravity;
_physics = dynamicObject;
}
}
_physics.IsProjectile = IsProjectile;
_physics.IsEthereal = IsEthereal;
// Hook up collision callbacks
_physics.OnCollision += (A, B, p) =>
{
if (A == _physics)
{
if (OnCollision != null)
{
OnCollision(B.GameObject);
}
if (B.GameObject != null)
{
if (OnCollisionEnter != null && !_collidingGameObjects.ContainsKey(B.GameObject))
{
OnCollisionEnter(B.GameObject);
}
if (OnCollisionEnter != null || OnCollisionLeave != null)
{
_collidingGameObjects[B.GameObject] = true;
}
}
}
else if (B == _physics)
{
if (OnCollision != null)
{
OnCollision(A.GameObject);
}
if (A.GameObject != null)
{
if (OnCollisionEnter != null && !_collidingGameObjects.ContainsKey(A.GameObject))
{
OnCollisionEnter(A.GameObject);
}
if (OnCollisionEnter != null || OnCollisionLeave != null)
{
_collidingGameObjects[A.GameObject] = true;
}
}
}
// If we collide with object subscripe to pre update event.
if (_preUpdateEventRegistered == false && ((_collidingGameObjects.Count != 0 && (OnCollisionEnter != null || OnCollisionLeave != null)) || StorePreviousVelocity))
{
_preUpdateEventRegistered = true;
GameObject.Scene.PreUpdate += preUpdate;
}
};
// Set reset info.
if (IsStatic == false && IsProjectile == false)
{
_startPosition = GameObject.Position;
SceneInfo.DynamicPhysicObjects.Add(this);
}
if (_pendingGameObject != null)
{
_physics.GameObject = _pendingGameObject;
}
}