Unity3D (10 Page)

unity3d stealth 적의 시야 관련 스크립트

| 카테고리 없음 2015. 1. 4. 20:35

Posted by 히아레인

using UnityEngine;
using System.Collections;

public class EnemySight : MonoBehaviour 
{
	public float fieldOfViewAngle = 110f;           // Number of degrees, centred on forward, for the enemy see.
	public bool playerInSight;                      // Whether or not the player is currently sighted.
	public Vector3 personalLastSighting;            // Last place this enemy spotted the player.

private NavMeshAgent nav;                       // Reference to the NavMeshAgent component.
	private SphereCollider col;                     // Reference to the sphere collider trigger component.
	private Animator anim;                          // Reference to the Animator.
	private LastPlayerSighting lastPlayerSighting;  // Reference to last global sighting of the player.
	private GameObject player;                      // Reference to the player.
	private Animator playerAnim;                    // Reference to the player's animator component.
	private PlayerHealth playerHealth;              // Reference to the player's health script.
	private HashIDs hash;                           // Reference to the HashIDs.
	private Vector3 previousSighting;               // Where the player was sighted last frame.
	
	
	void Awake ()
	{
		// Setting up the references.
		nav = GetComponent<NavMeshAgent>();
		col = GetComponent<SphereCollider>();
		anim = GetComponent<Animator>();
		lastPlayerSighting = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent<LastPlayerSighting>();
		player = GameObject.FindGameObjectWithTag(Tags.player);
		playerAnim = player.GetComponent<Animator>();
		playerHealth = player.GetComponent<PlayerHealth>();
		hash = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent<HashIDs>();
		
		// Set the personal sighting and the previous sighting to the reset position.
		personalLastSighting = lastPlayerSighting.resetPosition;
		previousSighting = lastPlayerSighting.resetPosition;
	}
	
	
	void Update ()
	{
		// If the last global sighting of the player has changed...
		if(lastPlayerSighting.position != previousSighting)
			// ... then update the personal sighting to be the same as the global sighting.
			personalLastSighting = lastPlayerSighting.position;
		
		// Set the previous sighting to the be the sighting from this frame.
		previousSighting = lastPlayerSighting.position;
		
		// If the player is alive...
		if(playerHealth.health > 0f)
			// ... set the animator parameter to whether the player is in sight or not.
			anim.SetBool(hash.playerInSightBool, playerInSight);
		else
			// ... set the animator parameter to false.
			anim.SetBool(hash.playerInSightBool, false);
	}
	
	
	void OnTriggerStay (Collider other)
	{
		// If the player has entered the trigger sphere...
		if(other.gameObject == player)
		{
			// By default the player is not in sight.
			playerInSight = false;
			
			// Create a vector from the enemy to the player and store the angle between it and forward.
			Vector3 direction = other.transform.position - transform.position;
			float angle = Vector3.Angle(direction, transform.forward);
			
			// If the angle between forward and where the player is, is less than half the angle of view...
			if(angle < fieldOfViewAngle * 0.5f)
			{
				RaycastHit hit;
				
				// ... and if a raycast towards the player hits something...
				if(Physics.Raycast(transform.position + transform.up, direction.normalized, out hit, col.radius))
				{
					// ... and if the raycast hits the player...
					if(hit.collider.gameObject == player)
					{
						// ... the player is in sight.
						playerInSight = true;
						
						// Set the last global sighting is the players current position.
						lastPlayerSighting.position = player.transform.position;
					}
				}
			}
			
			// Store the name hashes of the current states.
			int playerLayerZeroStateHash = playerAnim.GetCurrentAnimatorStateInfo(0).nameHash;
			int playerLayerOneStateHash = playerAnim.GetCurrentAnimatorStateInfo(1).nameHash;
			
			// If the player is running or is attracting attention...
			if(playerLayerZeroStateHash == hash.locomotionState || playerLayerOneStateHash == hash.shoutState)
			{
				// ... and if the player is within hearing range...
				if(CalculatePathLength(player.transform.position) <= col.radius)
					// ... set the last personal sighting of the player to the player's current position.
					personalLastSighting = player.transform.position;
			}
		}
	}
	
	
	void OnTriggerExit (Collider other)
	{
		// If the player leaves the trigger zone...
		if(other.gameObject == player)
			// ... the player is not in sight.
			playerInSight = false;
	}
	
	
	float CalculatePathLength (Vector3 targetPosition)
	{
		// Create a path and set it based on a target position.
		NavMeshPath path = new NavMeshPath();
		if(nav.enabled)
			nav.CalculatePath(targetPosition, path);
		
		// Create an array of points which is the length of the number of corners in the path + 2.
		Vector3[] allWayPoints = new Vector3[path.corners.Length + 2];
		
		// The first point is the enemy's position.
		allWayPoints[0] = transform.position;
		
		// The last point is the target position.
		allWayPoints[allWayPoints.Length - 1] = targetPosition;
		
		// The points inbetween are the corners of the path.
		for(int i = 0; i < path.corners.Length; i++)
		{
			allWayPoints[i + 1] = path.corners[i];
		}
		
		// Create a float to store the path length that is by default 0.
		float pathLength = 0;
		
		// Increment the path length by an amount equal to the distance between each waypoint and the next.
		for(int i = 0; i < allWayPoints.Length - 1; i++)
		{
			pathLength += Vector3.Distance(allWayPoints[i], allWayPoints[i + 1]);
		}
		
		return pathLength;
	}

}

저작자표시

Trackback 0 And Comment 0

unity3d Interface 사용 충돌체크 처리. (0)	2015.01.10
GetComponent 와 SendMesage 속도 비교 (0)	2015.01.09
visual studio 2013 무료 버전.. (0)	2015.01.07
bmfont 에서 사용되는 한글 모음 text 파일. (0)	2015.01.06
unity3d Animator 상태 변이가 일어나는지 여부 판단. (0)	2015.01.04
충돌한 Collider 의 종류에 따른 처리.. (0)	2015.01.04

GetComponent 와 SendMesage 속도 비교 (0)	2015.01.09
visual studio 2013 무료 버전.. (0)	2015.01.07
bmfont 에서 사용되는 한글 모음 text 파일. (0)	2015.01.06
unity3d Animator 상태 변이가 일어나는지 여부 판단. (0)	2015.01.04
충돌한 Collider 의 종류에 따른 처리.. (0)	2015.01.04
unity3d stealth 카메라 움직임. (0)	2015.01.04

일	월	화	수	목	금	토
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30

Unity3D

Article Category

Notice

Recent Article

Recent Comment

Recent Trackback

visual studio 2013 무료 버전..

'유니티 > Note' 카테고리의 다른 글

Trackback

bmfont 에서 사용되는 한글 모음 text 파일.

'유니티 > Note' 카테고리의 다른 글

Trackback

unity3d stealth 적의 시야 관련 스크립트

Trackback

Tag Cloud

Calendar

Archive

My Link