using System;
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using System.Collections;
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using System.Collections.Generic;
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using TMPro;
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using UnityEngine;
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public class HealthText : MonoBehaviour
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{
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// x = oscillation amount (0 = no oscillation), y = upwards speed
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public Vector3 moveSpeed = new Vector3(25f, 75, 0);
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// oscillation speed
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public float oscillationsPerSecond = 1.0f;
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// x of seconds it takes to fade away
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public float timeToFade = 1f;
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// start fading after x seconds
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public float startToFade = 1f;
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private float timeElapsed = 0f;
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private float randomStartingPointX;
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private float randomStartingPointY;
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private Vector3 startingPosition;
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RectTransform textTransform;
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TextMeshProUGUI textMeshPro;
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private void Awake()
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{
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textTransform = GetComponent<RectTransform>();
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textMeshPro = GetComponent<TextMeshProUGUI>();
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startingPosition = textTransform.position;
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// add random starting position for text
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randomStartingPointX = (float)new System.Random().NextDouble() - 0.5f;
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randomStartingPointY = (float)new System.Random().NextDouble() * 15f;
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textTransform.position = new Vector3(textTransform.position.x, textTransform.position.y + randomStartingPointY, textTransform.position.y);
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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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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 object when end of live is reached
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Destroy(gameObject);
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}
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}
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// calc oscillation phase
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float phase = ((randomStartingPointX + timeElapsed) * oscillationsPerSecond * (2f * Mathf.PI));
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// set new position of object
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textTransform.position = new Vector3(startingPosition.x + (Mathf.Sin(phase) * moveSpeed.x), textTransform.position.y + (moveSpeed.y * Time.deltaTime), textTransform.position.z + (moveSpeed.z * Time.deltaTime));
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}
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}
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