70 lines
1.8 KiB
C#
70 lines
1.8 KiB
C#
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using UnityEngine;
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using UnityEngine.AI;
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namespace VRSDK
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{
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public class EnemySpawner : MonoBehaviour
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{
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[SerializeField] private GameObject[] enemies = null;
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[SerializeField] private float spawnTime = 5.0f;
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[SerializeField] private float spawnRadius = 1.0f;
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[SerializeField] private int maxEnemies = 10;
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private float timer = 0.0f;
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private void Awake()
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{
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timer = Random.Range(spawnTime / 2.0f , spawnTime);
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}
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private void Update()
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{
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timer -= Time.deltaTime;
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if(timer <= 0.0f)
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Spawn();
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}
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//creates a new enemy
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private void Spawn()
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{
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timer = Random.Range(spawnTime / 2.0f, spawnTime);
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//check if dont have to many enemies already
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if (GameObject.FindGameObjectsWithTag( "Enemy" ).Length > maxEnemies)
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return;
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GameObject enemy = enemies[Random.Range(0 , enemies.Length)];
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if (RandomNavmeshLocation(spawnRadius, out Vector3 spawnPoint))
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{
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Instantiate(enemy, spawnPoint, transform.rotation);
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}
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}
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//return a random point inside the navmesh radius
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private bool RandomNavmeshLocation(float radius, out Vector3 spawnPosition)
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{
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Vector3 randomDirection = Random.insideUnitSphere * radius;
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randomDirection += transform.position;
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NavMeshHit hit;
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spawnPosition = Vector3.zero;
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if (NavMesh.SamplePosition(randomDirection, out hit, radius, 1))
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{
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spawnPosition = hit.position;
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return true;
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}
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return false;
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}
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}
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}
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