Hey People
I am currently working on a program in Unity that simulates the path of a robot given some Vector3 and Quaternions given from a Json file so far I have managed to create a method for serializing the gameObject in my unity scene, now I want to be able to save and load a List of Vector3’s and Quaternions for the GameObject to move/slerp towards, for testing purposes I have hardcoded some vector3’s and Quaternions the code for that is as follows (bottom of the code snippet):
public class TestSimulation : MonoBehaviour
{
// Field for the Text object. Meant to represent the x, y, z position of the GameObject.
// Serialized in order to make it easy to set in the editor.
// Drag a TextMeshPro text object to this field in the inspector
[SerializeField]
private TMPro.TextMeshProUGUI positionText;
// Field for the Text object. Meant to represent the x, y, z, w, rotation of the GameObject.
[SerializeField]
private TMPro.TextMeshProUGUI rotationText;
// Index used to navigate through the lists:
private int waypointIndex;
// Create list of vector3 positions
private List<Vector3> pointsPosition = new List<Vector3>();
// Create list of Quaternion rotations;
private List<Quaternion> pointsRotation = new List<Quaternion>();
// Get the target Vector3.
private Vector3 targetPosition;
// Field for the targetRotation/target Quarternion
private Quaternion targetRotation;
// Field for movementSpeed variable to increase or decrease the movement speed of the GameObject.
// If the movementSpeed is 0 then then GameObject will not move,
// and if the movementSpeed is negative then the GameObject will never reach it's target position.
// Therefore recommended that the movementSpeed is kept positive.
[SerializeField]
private float movementSpeed;
// Field for rotationSpeed variable to increase or decrease the rotation speed of the GameObject.
[SerializeField]
private float rotationSpeed;
// Start is called before the first frame update
void Start()
{
// Call to populateLists method at start to populate the ppintsPosition and pointsRotation lists.
populateLists();
// Make sure the waypointIndex is set to 0 at start
waypointIndex = 0;
// Set the start vector3 position equal item 0 in pointsPosition list.
targetPosition = pointsPosition[0];
// Set the Start Quaternion rotation equal item 0 in pointsRotation list.
targetRotation = pointsRotation[0];
}
// Update is called once per frame
void Update()
{
// Display the current position of the GameObject. The text to appear in in the Text object.
positionText.text = string.Format("Position:\n{0}", transform.position);
// Display the current euler rotation of the GameObject. The text to appear in the Text object.
rotationText.text = string.Format("Rotation:\n{0}", transform.rotation.eulerAngles);
// Move towards the targetPosition.
transform.position = Vector3.MoveTowards(transform.position, targetPosition, movementSpeed * Time.deltaTime);
// Rotate towards the target rotation.
transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, rotationSpeed * Time.deltaTime);
// Check if the GameObject is within a certain distance of the targetPosition
if (Vector3.Distance(transform.position, targetPosition) < .01f)
{
new WaitForSeconds(1);
// Check to make sure that the waypointIndex is NOT bigger than than the maximum number of vector3's in pointsPosition.
if (waypointIndex >= pointsPosition.Count - 1)
{
// If the waypointIndex is bigger than or equal to the total number of Vector3's in pointsPosition then reset the waypointIndex to 0.
waypointIndex = 0;
// If the waypointIndex is bigger than or equal to the total number of Vector3's in pointsPosition then pause the game.
Time.timeScale = 0;
}
else
{
waypointIndex++;
}
// Set a new target position
targetPosition = pointsPosition[waypointIndex];
// Set a new target rotation
targetRotation = pointsRotation[waypointIndex];
}
}
/// <summary>
/// Populate the pointsPosition list with Vector3's and the pointsRotation with Quaternion's
/// </summary>
void populateLists()
{
Vector3 rotationsVector;
pointsPosition.Add(new Vector3(0, 1, 0));
pointsPosition.Add(new Vector3(1, 1, 0));
pointsPosition.Add(new Vector3(1, 1, 1));
pointsPosition.Add(new Vector3(2, 2, 2));
pointsPosition.Add(new Vector3(3, 3, 3));
pointsRotation.Add(Quaternion.Euler(0, 0, 0));
pointsRotation.Add(Quaternion.Euler(45, 0, 0));
pointsRotation.Add(Quaternion.Euler(0, 0, 0));
// When NOT using Quaternion.Euler remember to convert input to float and add a w with value=1 as seen below.
pointsRotation.Add(new Quaternion((float)0.45, 0, 0, 1));
rotationsVector = new Vector3(25, 0, 0);
pointsRotation.Add(Quaternion.Euler(rotationsVector));
}
}
The data I am currently saving to Json (using LitJson) is the spawn/start position of the GameObject and the scene to load the data into.
to summarise:
I want to save the 2 lists (List pointsPosition and List pointsRotation) to a Json file, thus i need help serializing the Vector3’s and the Quaternions as well as deserializing Vector3’s and Quaternions from said file
