private void UpdateVelocityX(MovementBoundaries moveBoundaries)
{
float newVelocityX = this.velocity.x;
if (moveBoundaries.NearBarrierRight && moveBoundaries.NearBarrierLeft)
{
newVelocityX = 0;
}
else if (moveBoundaries.NearBarrierRight || moveBoundaries.NearBarrierLeft)
{
float hitDistance = moveBoundaries.NearBarrierRight ? moveBoundaries.BarrierRightDistance : moveBoundaries.BarrierLeftDistance;
float directionMultiplier = moveBoundaries.NearBarrierRight ? 1 : -1;
if (hitDistance > this.barrierMinDistance)
{
newVelocityX -= directionMultiplier * this.barrierSlowdownXMultiplier * this.driftSpeedMultiplier;
}
else
{
newVelocityX = -directionMultiplier * this.driftSpeedMultiplier;
}
}
else if (moveBoundaries.IsPastCameraLeft || moveBoundaries.IsPastCameraRight)
{
newVelocityX = (moveBoundaries.IsPastCameraLeft ? 1 : -1) * this.driftSpeedMultiplier;
}
else if (Mathf.Abs(this.velocity.x) < 0.01) // if almost stopped moving
// Start moving again:
{
newVelocityX = (this.facingRight ? 1 : -1) * this.driftSpeedMultiplier;
}
this.velocity = new Vector2(newVelocityX, this.velocity.y);
}
void Update()
{
if (this.facingRight && this.spriteRenderer.flipX)
{
this.spriteRenderer.flipX = false;
}
else if (!this.facingRight && !this.spriteRenderer.flipX)
{
this.spriteRenderer.flipX = true;
}
MovementBoundaries moveBoundaries = this.CalculateMovementBoundaries();
this.UpdateVelocityX(moveBoundaries);
this.UpdateVelocityY(moveBoundaries);
if (this.velocity.x > 0)
{
this.facingRight = true;
}
else if (this.velocity.x < 0)
{
this.facingRight = false;
}
// If velocity.x == 0, don't change direction.
this.movementController.Move(this.velocity * Time.deltaTime);
}
private void UpdateVelocityY(MovementBoundaries moveBoundaries)
{
float newVelocityY = this.velocity.y;
if (moveBoundaries.NearBarrierUp && moveBoundaries.NearBarrierDown)
{
newVelocityY = 0;
}
else
{
float velocityYOffset = 0;
float waveShiftYVelocity = 0;
if (moveBoundaries.NearBarrierUp || moveBoundaries.NearBarrierDown)
{
this.waveShiftUp = moveBoundaries.NearBarrierDown;
float hitDistance = moveBoundaries.NearBarrierUp ? moveBoundaries.BarrierUpDistance : moveBoundaries.BarrierDownDistance;
float directionMultiplier = moveBoundaries.NearBarrierUp ? -1 : 1;
if (hitDistance > this.barrierMinDistance)
{
velocityYOffset = directionMultiplier * this.barrierSlowdownYMultiplier * this.driftSpeedMultiplier;
}
else
{
this.driftWavePhase = -2 * Mathf.PI * this.driftWaveFrequency * Time.time + (moveBoundaries.NearBarrierUp ? 1.05f : 0.05f) * Mathf.PI;
}
}
else if (moveBoundaries.IsPastCameraTop || moveBoundaries.IsPastCameraBottom)
{
this.waveShiftUp = moveBoundaries.IsPastCameraBottom;
this.driftWavePhase = -2 * Mathf.PI * this.driftWaveFrequency * Time.time + (moveBoundaries.IsPastCameraTop ? 1.05f : 0.05f) * Mathf.PI;
}
else
{
waveShiftYVelocity = (this.waveShiftUp ? 1 : -1) * this.driftWaveYShiftMultiplier * this.driftSpeedMultiplier;
}
// Mod argument to Mathf.Sin by 2*pi, since Mathf.Sin fails for large values:
float newVelocityYSin = Mathf.Sin((2 * Mathf.PI * this.driftWaveFrequency * Time.time + this.driftWavePhase) % (2 * Mathf.PI));
newVelocityY = this.driftWaveAmplitude * newVelocityYSin + velocityYOffset + waveShiftYVelocity;
}
this.velocity = new Vector2(this.velocity.x, newVelocityY);
}
