Unity - 간단한 카메라가 지면의 좌표를 따라 가져오기

직접 부호:

using UnityEngine;
using System.Collections;

public class findFloor : MonoBehaviour {
	private Vector3 floorPosition;
	private RaycastHit hit;
	private float rayLength = 300;
	private float ySpeed=20;
	private float gravity=2f;
	private float jumpForce=1f;
	public Transform character;
	private uint jumpState=0; //0=grounded 1=jumping
	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {
		DetectKeys();
		FindFloorAndRotation();
		MoveCharacter();
		MoveCamera();
		
	}
	
	void DetectKeys(){
		//jump:
		if (Input.GetKeyDown("space") && jumpState==0) {
			ySpeed-=jumpForce;
			jumpState=1;
		}
	}
	
	void FindFloorAndRotation(){
		if (Physics.Raycast(character.position,-Vector3.up,out hit, rayLength)){
			Debug.DrawRay(character.position, -Vector3.up * hit.distance);
			floorPosition=hit.point;
		}
	}
	
	void MoveCharacter(){
		//add gravity:
		ySpeed += gravity * Time.deltaTime;
		
		//apply gravity:
		character.position=new Vector3(floorPosition.x,character.position.y-ySpeed,floorPosition.z);
		
		//floor checking:
		if(character.position.y<floorPosition.y){
			ySpeed=0;
			jumpState=0;
			character.position=new Vector3(floorPosition.x,floorPosition.y,floorPosition.z);
		}
	}
	
	void MoveCamera(){
		//   
		Camera.main.gameObject.transform.LookAt(character.position);
		iTween.MoveUpdate(Camera.main.gameObject,new Vector3(character.position.x,character.position.y,character.position.z-100f),.9f);	
		//   
		//iTween.LookUpdate(gameObject,target.position,2);
	}
}