public static void HandleMovement(IItem item)
{
item.Velocity = new Vector2(item.Velocity.X, item.Velocity.Y + Constants.G_CONST);
Vector2 targetPosition = new Vector2(item.Position.X + item.Velocity.X, item.Position.Y + item.Velocity.Y);
Vector2 finalPosition = targetPosition;
if (!CollisionDetector.IsPositionFree(item, targetPosition))
{
if (item.Velocity.Y >= Constants.CRUSHING_SPD_CONST)
{
List <IEnemy> crushList = CollisionDetector.GetObjectsAtPosition <IEnemy>(item, targetPosition);
foreach (IEnemy enemy in crushList)
{
enemy.Kill();
ScoreManager.IncreaseScore(Constants.CRUSHING_PTS_CONST);
}
}
finalPosition = CollisionHelper.GetNewPosition(item, targetPosition);
HandleCollisionDirections(item, finalPosition, targetPosition);
}
item.Position = finalPosition;
}
public override void DropItem()
{
float newItemX;
if (StateManager.IsFacingRight)
{
newItemX = Position.X + Size.X + 1;
}
else
{
newItemX = Position.X - CurrentItem.Size.X - 1;
}
CurrentItem.CollisionType = CollisionType.Solid;
if (!CollisionDetector.IsPositionFree(CurrentItem, new Vector2(newItemX, Position.Y + Size.Y - CurrentItem.Size.Y)))
{
CurrentItem.CollisionType = CollisionType.Liquid;
return;
}
CurrentItem.Position = new Vector2(newItemX, Position.Y);
CurrentItem.Velocity = new Vector2(0, Velocity.Y);
StateManager.IsCarryingObject = false;
CurrentItem = null;
}
private static bool GetPositionFree(ICollidable collidable, Vector2 newPosition, List <ICollidable> ignoreList)
{
if (ignoreList == null)
{
return(CollisionDetector.IsPositionFree(collidable, newPosition));
}
else
{
return(CollisionDetector.IsPositionFree(collidable, newPosition, ignoreList));
}
}
public virtual void DropItem()
{
float newItemX = ItemXPosition();
if (CollisionDetector.IsPositionFree(CurrentItem, new Vector2(newItemX, Position.Y + Size.Y - CurrentItem.Size.Y)))
{
CurrentItem.CollisionType = CollisionType.Solid;
CurrentItem.Position = new Vector2(newItemX, Position.Y);
CurrentItem.Velocity = new Vector2(0, Velocity.Y);
StateManager.IsCarryingObject = false;
CurrentItem = null;
}
}
public void Update()
{
ShouldNotifyReceivers = false;
sprite.Update();
if (!CollisionDetector.IsPositionFree(pressHitbox, Position))
{
Press();
}
else
{
Depress();
}
}
public static void HandleMovement(IEnemy enemy)
{
Vector2 targetPosition = new Vector2(enemy.Position.X + enemy.Velocity.X, enemy.Position.Y + enemy.Velocity.Y);
Vector2 finalPosition = targetPosition;
if (!CollisionDetector.IsPositionFree(enemy, targetPosition))
{
finalPosition = CollisionHelper.GetNewPosition(enemy, targetPosition);
HandleCollisionDirections(enemy, finalPosition, targetPosition);
}
enemy.Position = finalPosition;
}
public static void HandleMovementAndCollisions(AbstractCharacter character)
{
character.Velocity = new Vector2(character.Velocity.X, character.Velocity.Y + Constants.G_CONST);
Vector2 newPosition = new Vector2(character.Position.X + character.Velocity.X, character.Position.Y + character.Velocity.Y);
Vector2 finalPosition = newPosition;
Vector2 itemNewPosition;
Vector2 itemFinalPosition;
List <ICollidable> ignoreList;
ignoreList = new List <ICollidable>();
if (character.CurrentItem != null)
{
ignoreList.Add(character);
ignoreList.Add(character.CurrentItem);
}
if (CollisionDetector.IsPositionFree(character, new Vector2(character.Position.X, character.Position.Y + 1)))
{
character.GoToAir();
}
Vector2 testPosition = new Vector2(newPosition.X, character.Position.Y);
HandleItemCollisions(character, testPosition);
HandleCollectableCollisions(character, testPosition);
HandleEnemyCollisions(character, testPosition);
HandleTerrainCollisions(character, newPosition);
if (!CollisionDetector.IsPositionFree(character, newPosition, ignoreList))
{
finalPosition = CollisionHelper.GetNewPosition(character, newPosition, ignoreList);
if (finalPosition.Y < newPosition.Y)
{
character.LandOnGround();
}
if (finalPosition.Y > newPosition.Y)
{
character.HitBlockFromBelow();
}
}
if (character.CurrentItem != null)
{
itemNewPosition = Vector2.Add(character.CurrentItem.Position, Vector2.Subtract(finalPosition, character.Position));
itemFinalPosition = itemNewPosition;
if (!CollisionDetector.IsPositionFree(character.CurrentItem, itemNewPosition, ignoreList))
{
itemFinalPosition = CollisionHelper.GetNewPosition(character.CurrentItem, itemNewPosition, ignoreList);
if (itemFinalPosition.Y < itemNewPosition.Y)
{
character.LandOnGround();
}
if (itemFinalPosition.Y > itemNewPosition.Y)
{
character.HitBlockFromBelow();
}
}
float itemDistance = Vector2.Distance(itemFinalPosition, character.CurrentItem.Position);
float characterDistance = Vector2.Distance(finalPosition, character.Position);
if (characterDistance > itemDistance)
{
finalPosition = Vector2.Add(character.Position, Vector2.Subtract(itemFinalPosition, character.CurrentItem.Position));
}
}
character.Position = finalPosition;
character.UpdateItemPosition();
}
