/// <summary>
/// Immediately finish any transition, and copy current target information
/// to its equivalent 'old' field
/// </summary>
private void FinishTransition()
{
oldTarget = target;
oldTargetPos = targetPos;
transitionPos = Vector2.Zero;
transitionRemaining = 0;
}
/// <summary>
/// Lock the camera onto the specified target.
/// </summary>
/// <param name="target">The GameplayObject to follow or "lock on" to</param>
/// <param name="immediate">If the lock is not immediate, the last transition position is saved and the transition finishes from transition position to the new target</param>
public void LockTarget(GameObject target, bool immediate)
{
if (immediate)
{
// End the transition, set the pos as the current vector lock
FinishTransition();
mode = CameraMode.LockedTarget;
this.target = target;
}
else
{
switch (mode)
{
case CameraMode.LockedPos:
oldTargetPos = targetPos;
break;
case CameraMode.LockedTarget:
oldTargetPos = target.Position;
break;
case CameraMode.TtTTransition:
case CameraMode.TtVTransition:
case CameraMode.VtTTransition:
case CameraMode.VtVTransition:
oldTargetPos = transitionPos;
break;
}
//Complete the transition from its current position
this.target = target;
mode = CameraMode.VtTTransition;
}
isTransformDirty = true;
}
/// <summary>
/// Very much like LockTarget(target, immediate) except it allows a specification of duration.
/// </summary>
/// <param name="target">The GameplayObject to follow or "lock on" to</param>
/// <param name="duration">Amount of time for the transition from last target or pos, or transition position (depending on last mode)</param>
/// <param name="immediate">If the lock is not immediate, the last transition position is saved and the transition finishes from transition position to the new target</param>
public void TransitionTo(GameObject target, float duration, bool immediate)
{
LockTarget(target, immediate);
if (!immediate)
transitionRemaining = transitionTime = duration;
}
/// <summary>
/// Copy Constructor
/// </summary>
/// <param name="camera">The camera to copy</param>
public Camera(Camera camera)
{
dt = camera.dt;
mode = camera.mode;
oldTarget = camera.oldTarget;
target = camera.target;
oldTargetPos = camera.oldTargetPos;
targetPos = camera.targetPos;
transitionPos = camera.transitionPos;
transitionRemaining = camera.transitionRemaining;
transitionTime = camera.transitionTime;
lastFramePos = camera.lastFramePos;
effects = new List<CameraEffect>(camera.effects);
isTransformDirty = camera.isTransformDirty;
transformMatrix = camera.transformMatrix;
}