/// <summary>
/// Handles starting and stopping (triggering) the slingshot input.
/// </summary>
private void HandleSlingshotInput()
{
// Press to start slingshotting, release to stop
if (!m_isSlingshotDown && Input.GetButtonDown("Fire1"))
{
m_isSlingshotDown = true;
m_usingControllerForSlingshot = false; // Will be set to true in GetPressPos if using controller
m_slingshotStartPos = GetPressPos();
slingshotPullSound.Play();
slingshotReleaseSound.Stop();
// Only show the directional input element on touch/mouse setups as
// they make it harder to tell where the input will take the player.
if (!m_usingControllerForSlingshot)
{
m_slingshotDirectionIndicator.StartSlingshotInput(m_slingshotStartPos);
}
}
else if (m_isSlingshotDown && Input.GetButtonUp("Fire1"))
{
m_isSlingshotDown = false;
Vector2 launchDir = GetSlingshotDirection();
m_playerPhysics.LaunchPlayer(launchDir);
m_playerRotation.UpdatePlayerRotation(DirectionHelpers.RotationAngleForVector(launchDir) * Mathf.Rad2Deg, false);
slingshotReleaseSound.Play();
slingshotPullSound.Stop();
if (!m_usingControllerForSlingshot)
{
m_slingshotDirectionIndicator.StopSlingshotInput();
}
}
}
/// <summary>
/// Bounces the player off the collision if the collision direction is relevant.
/// </summary>
/// <param name="collision">Collision information.</param>
private void CollisionBounce(Collision2D collision)
{
// Work out whether the contact is horizontal
DirectionHelpers.Direction collisionDirection =
DirectionHelpers.GetCollisionDirection(m_transform.position, collision.contacts);
if (collisionDirection == DirectionHelpers.Direction.LEFT ||
collisionDirection == DirectionHelpers.Direction.RIGHT)
{
// Reflect X component of collision velocity
m_rigidbody.velocity = new Vector2(-m_rigidbodyVelocity.x, m_rigidbodyVelocity.y);
// Apply bounce velocity slowdown or boost to new velocity vector
m_rigidbody.velocity = m_rigidbody.velocity.normalized * (m_rigidbody.velocity.magnitude * wallSpeedBouncePercent);
// Make the player face the new bounced velocity direction
m_playerRotation.UpdatePlayerRotation(DirectionHelpers.RotationAngleForVector(m_rigidbody.velocity), false);
// Play bounce animation
m_playerAnimation.TriggerBounceAnim();
bounceSound.Play();
}
// Landing/hitting a platform from above/below
if (collisionDirection == DirectionHelpers.Direction.DOWN ||
collisionDirection == DirectionHelpers.Direction.UP)
{
landSound.Play();
}
}
private void PlayerRotateTick()
{
if (m_playerInput.isSlingshotDown)
{
// Lerp the rotate to keep it smooth but lerp faster so that the player's facing better reflects their input
Vector2 launchDir = m_playerInput.GetSlingshotDirection();
UpdatePlayerRotation(DirectionHelpers.RotationAngleForVector(launchDir) * Mathf.Rad2Deg, true, 4.0f);
}
else
{
// Lerp rotate to face velocity
Vector2 playerVelocity = m_rigidbody.velocity;
float rotationAngleDeg = 0.0f; // Lerp to face up if no velocity present
if (playerVelocity.sqrMagnitude > 0.1f)
{
rotationAngleDeg = DirectionHelpers.RotationAngleForVector(playerVelocity.normalized) * Mathf.Rad2Deg;
if (!movementSound.isPlaying)
{
movementSound.Play();
}
}
else
{
if (movementSound.isPlaying)
{
movementSound.Stop();
}
}
UpdatePlayerRotation(rotationAngleDeg, true);
}
}
/// <summary>
/// Makes the slingshot direction indicator face along the input direction vector.
/// </summary>
private void RotateSlingshotDirectionIndicator()
{
if (m_playerInput.isSlingshotDown)
{
// Rotate to face input
Vector2 slingshotVector = m_playerInput.GetSlingshotDirection();
float rotationAngle = DirectionHelpers.RotationAngleForVector(slingshotVector);
m_transform.rotation = Quaternion.Euler(0.0f, 0.0f, rotationAngle * Mathf.Rad2Deg);
}
}
private static int GetPart2(string[] lines)
{
var map = LoadDictionary(lines);
PrintMap(map, 9);
int burstInfection = 0;
var currentDirection = Direction.Up;
var currentPoint = new Point(0, 0);
for (int i = 0; i < 10000000; i++)
{
if (!map.ContainsKey(currentPoint))
{
map[currentPoint] = '.';
}
var c = map[currentPoint];
if (c == '.')
{
map[currentPoint] = 'W';
currentDirection = DirectionHelpers.TurnLeft(currentDirection);
}
else if (c == '#')
{
map[currentPoint] = 'F';
currentDirection = DirectionHelpers.TurnRight(currentDirection);
}
else if (c == 'W')
{
map[currentPoint] = '#';
burstInfection++;
}
else if (c == 'F')
{
map[currentPoint] = '.';
currentDirection = DirectionHelpers.GetOppositeDirection(currentDirection);
}
currentPoint = DirectionHelpers.GetNextPoint(currentDirection, currentPoint);
}
PrintMap(map, 9);
return(burstInfection);
}
