/// <summary>
/// Gets the position in world space the character should be based on how far up the rope section they are.
/// </summary>
/// <returns>The center for position.</returns>
/// <param name="characterPosition">Characters grab position.</param>
/// <param name="characterPosition">Offset from characters center and their grab (usually hand) position.</param>
virtual public Vector2 GetCharacterPositionForPosition(float position, float handOffset)
{
float newPosition = position + (handOffset / Length);
// On current section
if (Mathf.Abs(newPosition) <= 1.0f)
{
return(GetCharacterPositionForPosition(newPosition));
}
// Above current section
else if (newPosition >= 1.0f)
{
RopeSection altSection = this;
while (newPosition > 1.0f)
{
if (altSection.SectionAbove == null)
{
return(altSection.GetCharacterPositionForPosition(1.0f));
}
else
{
altSection = altSection.SectionAbove;
}
newPosition -= 1.0f;
}
return(altSection.GetCharacterPositionForPosition(newPosition));
}
// Below current section
else
{
RopeSection altSection = this;
while (newPosition < -1.0f)
{
if (altSection.SectionBelow == null)
{
return(altSection.GetCharacterPositionForPosition(-1.0f));
}
else
{
altSection = altSection.SectionBelow;
}
newPosition += 1.0f;
}
return(altSection.GetCharacterPositionForPosition(newPosition));
}
}
/// <summary>
/// Moves the character.
/// </summary>
override public void DoMove()
{
if (swingTimer <= 0.0f)
{
showSwingAnimation = false;
}
// On a ladder/vine
if (currentRopeSection == null)
{
float offsetFromCentre = transform.position.x - character.CurrentLadder.transform.position.x;
character.Translate(-offsetFromCentre, 0, true);
// Determine if we are at bottom of ladder (ie. the bottom of the feet colliders are below or at the ladders end)
// Climbing
if (character.Input.VerticalAxisDigital != 0)
{
if (character.Input.VerticalAxisDigital == 1)
{
character.Translate(0, TimeManager.FrameTime * climbSpeed, true);
// Make sure we don't go above ladder
float ladderTop = (character.CurrentLadder.transform.position.y +
((BoxCollider2D)character.CurrentLadder).Offset().y) +
(character.CurrentLadder.transform.lossyScale.y * (((BoxCollider2D)character.CurrentLadder).size.y / 2));
if (ladderTop <= character.BottomOfFeet)
{
character.Translate(0, ladderTop - character.BottomOfFeet, true);
// Dismount - climbed to bottom/top of ladder
if (((int)LadderDismountType.TOP_BOTTOM & availableDismounts) == (int)LadderDismountType.TOP_BOTTOM)
{
dismount = true;
character.ApplyBaseCollisionsForRaycastType(RaycastType.FOOT);
}
}
}
else if (character.Input.VerticalAxisDigital == -1)
{
character.Translate(0, TimeManager.FrameTime * -climbSpeed, true);
// Make sure we don't go below ladder
float ladderBottom = (character.CurrentLadder.transform.position.y +
((BoxCollider2D)character.CurrentLadder).Offset().y) -
(character.CurrentLadder.transform.lossyScale.y * (((BoxCollider2D)character.CurrentLadder).size.y / 2));
if (ladderBottom >= character.BottomOfFeet)
{
character.Translate(0, ladderBottom - character.BottomOfFeet, true);
// Dismount - climbed to bottom/top of ladder
if (((int)LadderDismountType.TOP_BOTTOM & availableDismounts) == (int)LadderDismountType.TOP_BOTTOM)
{
dismount = true;
}
}
}
}
}
// On a rope
else
{
// Handle non-climbable rope
if (currentRopeSection.usedFixedPosition)
{
// Dismount on down
if (character.Input.VerticalAxisDigital == -1)
{
if (((int)LadderDismountType.TOP_BOTTOM & availableDismounts) == (int)LadderDismountType.TOP_BOTTOM)
{
dismount = true;
dismountTimer = DismountTime;
character.ApplyBaseCollisionsForRaycastType(RaycastType.FOOT);
}
}
}
else
{
// Climbing
if (character.Input.VerticalAxisDigital != 0)
{
if (character.Input.VerticalAxisDigital == 1)
{
// Make sure we can climb to the next rope piece if it exists
// Move along length
float newPosition = positionOnSection + (TimeManager.FrameTime * (climbSpeed / currentRopeSectionLength));
if (newPosition >= 2.0f)
{
Debug.LogWarning("Rope climbing speed is too large for rope section size");
newPosition = 1.9999f;
}
if (newPosition > 1.0f)
{
// If position is bigger than one move up to next rope section
RopeSection nextSection = currentRopeSection.SectionAbove;
// Don't allow climbing to the RopeAnchor
if (nextSection is RopeAnchor)
{
nextSection = null;
}
// Or if no rope section left cap position at 1.
if (nextSection == null)
{
positionOnSection = 1.0f;
}
else
{
positionOnSection = newPosition - 1.0f;
currentRopeSection = nextSection;
}
}
else
{
positionOnSection = newPosition;
}
}
else if (character.Input.VerticalAxisDigital == -1)
{
// Make sure we can climb to the next rope piece if it exists
// Move along length
float newPosition = positionOnSection - (TimeManager.FrameTime * (climbSpeed / currentRopeSectionLength));
if (newPosition <= -1.0f)
{
Debug.LogWarning("Rope climbing speed is too large for rope section size");
newPosition = -0.9999f;
}
if (newPosition < 0)
{
// If position is smaller than zero move down to next rope section
RopeSection nextSection = currentRopeSection.SectionBelow;
// Or if no rope section left cap position at 0
if (nextSection == null)
{
positionOnSection = 0;
if (((int)LadderDismountType.TOP_BOTTOM & availableDismounts) == (int)LadderDismountType.TOP_BOTTOM && character.Input.VerticalAxisDigital == -1)
{
dismount = true;
dismountTimer = DismountTime;
character.ApplyBaseCollisionsForRaycastType(RaycastType.FOOT);
}
}
else
{
positionOnSection = newPosition + 1.0f;
currentRopeSection = nextSection;
}
}
else
{
positionOnSection = newPosition;
}
}
}
}
// Rotate
if (calculateAngles)
{
// TODO This rotation interacts directly with the chracter transform (and other variables) - it would be nicer to do this through the character interface
float deg = currentRopeSection.GetCharacterRotationForPosition(positionOnSection, handOffset);
float deg2 = currentRopeSection.GetCharacterRotationForPosition(positionOnSection, 0);
deg = (deg + deg2) / 2.0f;
float difference = deg - character.transform.eulerAngles.z;
// Shouldn't really happen but just in case
if (difference > 180)
{
difference = difference - 360;
}
if (difference < -180)
{
difference = difference + 360;
}
// character.transform.Rotate = Quaternion.Euler(0,0,deg);
//character.transform.RotateAround(transform.position + new Vector3(0, handOffset, 0), new Vector3(0,0,1), difference);
if (difference > character.rotationSpeed * TimeManager.FrameTime)
{
difference = character.rotationSpeed * TimeManager.FrameTime;
}
if (difference < -character.rotationSpeed * TimeManager.FrameTime)
{
difference = -character.rotationSpeed * TimeManager.FrameTime;
}
character.transform.RotateAround(character.transform.position, new Vector3(0, 0, 1), difference);
}
// Snap to centre
Vector2 diff = (Vector2)character.transform.position + (Vector2)(character.transform.localRotation * new Vector2(0, handOffset)) - currentRopeSection.GetCharacterPositionForPosition(positionOnSection, handOffset);
character.Translate(-diff.x, -diff.y, true);
// Apply down force
if (downforce > 0)
{
currentRopeSection.GetComponent <Rigidbody2D>().AddForceAtPosition(new Vector2(0, -downforce), character.Transform.position, ForceMode2D.Force);
}
// Swing (but only if not climbing)
if (swingForce > 0 && swingTimer <= 0.0f && character.Input.HorizontalAxisDigital != 0 && character.Input.VerticalAxisDigital == 0)
{
currentRopeSection.GetComponent <Rigidbody2D>().AddForceAtPosition(currentRopeSection.transform.rotation * new Vector2(swingForce * character.Input.HorizontalAxisDigital, 0), character.Transform.position, ForceMode2D.Impulse);
swingTimer = swingTime;
showSwingAnimation = true;
}
}
// We have no residual velocity if on a rope
if (!jumpDismount)
{
character.SetVelocityX(0);
character.SetVelocityY(0);
}
}