using System;
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using TMPro;
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using UnityEngine;
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public class WorldSpaceText : MonoBehaviour
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{
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public Vector3 moveSpeed = new Vector3(0.25f, 0.75f, 0);
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public float oscillationsPerSecond = 1.0f;
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public float timeToFade = 1f;
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public float startToFade = 1f;
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private float timeElapsed = 0f;
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public bool randomStartingPoint = false;
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private float randomStartingPointX = 0f;
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private float randomStartingPointY = 0f;
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private Vector3 startingPosition;
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private TextMeshProUGUI textMeshPro;
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private void Awake()
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{
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textMeshPro = GetComponent<TextMeshProUGUI>();
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startingPosition = transform.position;
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// Add random starting position for text
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if (randomStartingPoint)
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{
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randomStartingPointX = UnityEngine.Random.value - 0.5f;
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randomStartingPointY = UnityEngine.Random.value * 0.15f;
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}
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transform.position = new Vector3(transform.position.x, transform.position.y + randomStartingPointY, transform.position.z);
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// Ensure text faces camera
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transform.rotation = Camera.main.transform.rotation;
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}
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private void Update()
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{
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timeElapsed += Time.deltaTime;
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float deltaTime = Time.deltaTime;
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// Always face camera
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transform.rotation = Camera.main.transform.rotation;
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if (timeElapsed >= startToFade)
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{
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// Start fading when "startToFade" time is reached
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textMeshPro.alpha = (1 - ((timeElapsed - startToFade) / timeToFade));
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if (timeElapsed >= (startToFade + timeToFade))
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{
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Destroy(gameObject);
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}
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}
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// Calculate oscillation phase
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float phase = ((randomStartingPointX + timeElapsed) * oscillationsPerSecond * (2f * Mathf.PI));
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// Set new position of object (using world space values)
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transform.position = new Vector3(
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startingPosition.x + (Mathf.Sin(phase) * moveSpeed.x),
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transform.position.y + (moveSpeed.y * deltaTime),
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transform.position.z + (moveSpeed.z * deltaTime));
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}
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}
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