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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
namespace StylizedProjectile
{
public class Projectile : MonoBehaviour
{
private float disappearAfterTime = 3;
private float disappearTimer = 0;
private bool isActive = false;
// private MeshRenderer meshRenderer;
private Vector3 direction;
private Vector3 startPosition;
private float movementSpeed = 1;
private Vector3 targetPosition;
private float distanceToTarget;
private float movementValue;
// Use this for initialization
void Start ()
{
// We cache this for performance reasons, GetComponent is slow to do realtime
// meshRenderer = GetComponent<MeshRenderer>();
// meshRenderer = GetComponent<MeshRenderer>();
}
// Update is called once per frame
void Update () {
if (isActive) // Only update stuff if we're alive
{
disappearTimer += Time.deltaTime; // Increase disappear timer
if (disappearTimer > disappearAfterTime) // If we're alive too long, get rekt
{
disappearTimer = 0; // Reset timer
isActive = false; // Is not active anymore
// meshRenderer.enabled = false; // Disable meshrender so it's invisible
}
// 1/distanceToTarget is the calculation to move 1 unit per second, movementspeed defines how many units per second you want to move
movementValue += (1/distanceToTarget*movementSpeed) * Time.deltaTime;
if (movementValue > 1)
{
movementValue = 1;
Explode();
}
Move();
}
}
void Move()
{
// lerp goes from 0 to 1, 0 is startPosition, 1 is the targets position;
transform.position = Vector3.Lerp(startPosition, targetPosition, movementValue);
}
void MoveWithoutTargetHit()
{
transform.position += direction.normalized * movementSpeed;
}
public void Fire(Vector3 target, Vector3 spawnPosition, Vector3 Direction, float speed)
{
if (isActive) // If we're active, just return so we don't execute any code
return;
isActive = true; // Set active
disappearTimer = 0; // Reset timer just in case it's not reset
transform.position = spawnPosition; // set spawn position
// meshRenderer.enabled = true; // Enable meshrender so it's visible
movementSpeed = speed; // Units per second
direction = Direction.normalized; // Normalize the direction
targetPosition = target; // Set target transform - Can be null for continous movement without target
distanceToTarget = Vector3.Distance(targetPosition, transform.position);
startPosition = spawnPosition;
movementValue = 0;
}
// It gets here after it hits something
void Explode()
{
disappearTimer = 0; // Reset timer
isActive = false; // Is not active anymore
// meshRenderer.enabled = false; // Disable meshrender so it's invisible
}
public bool GetIsActive()
{
return isActive;
}
}
}
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