public override void Update(GameTime gameTime)
{
Gameplay g = Sender.Parent.Parent;
#region Gestion de la gravité
float vx = Velocity.X;
float vy = Velocity.Y;
if (!_onFloor)
{
vy = GRAVITY;
}
// Dans l'eau
if (Position.Y > g.WaterLevel)
{
Velocity.Normalize();
if (Position.Y > g.WaterLevel + g.WaterHeight)
{
Die(false);
}
}
#endregion
#region Limitations de la vélocité
vx = MathHelper.Clamp(vx, -SPEED_MAX, SPEED_MAX);
vy = MathHelper.Clamp(vy, -SPEED_MAX, SPEED_MAX);
Velocity = new Vector2(vx, vy);
#endregion
#region Récupération de l'ancienne position en 3 points en bas (Gauche / Centre / Droite) pour vérifier les collisions
Vector2 previousPosMiddle = new Vector2(BoundingBox.Location.X, BoundingBox.Size.Y);
Vector2 previousPosLeft = new Vector2(BoundingBox.Left, BoundingBox.Bottom);
Vector2 previousPosRight = new Vector2(BoundingBox.Right, BoundingBox.Bottom);
#endregion
base.Update(gameTime);
#region Collision avec le sol
Vector2 newPosLeft = new Vector2(Position.X - ImgBox.Value.Width / 2, Position.Y);
Vector2 newPosMiddle = Position;
Vector2 newPosRight = new Vector2(Position.X + ImgBox.Value.Width / 2, Position.Y);
if (g.IsSolid(newPosLeft, previousPosLeft) ||
g.IsSolid(newPosMiddle, previousPosMiddle) ||
g.IsSolid(newPosRight, previousPosRight))
{
_onFloor = true;
// Récupère l'altitude en Y à position.X -20 et +20 afin d'en déterminer l'angle à partir d'un vecteur tracé entre ces deux points.
Vector2 center = g.FindHighestPoint(Position, 0);
Vector2 before = g.FindHighestPoint(Position, -BoundingBox.Width / 2);
Vector2 after = g.FindHighestPoint(Position, BoundingBox.Width / 2);
Angle = (float)utils.MathAngle(after - before);
Position += center;
}
else
{
_onFloor = false;
}
RefreshBoundingBox();
#endregion
}
public Particle(Gameplay pParent, Texture2D pImage, Rectangle?pImgBox, Vector2 pPosition, Vector2 pOrigin, Vector2 pScale) : base(pImage, pImgBox, pPosition, pOrigin, pScale)
{
Parent = pParent;
}