using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace FPS{

	public enum PlayerState{
		Idle, Walking, Running, Jumping
	}

	[RequireComponent(typeof(CharacterController), typeof(AudioSource))]
	public class PlayerController : MonoBehaviour {

		[Range(0.1f, 2f)]
		public float walkSpeed = 1.5f;
		[Range(0.1f, 10f)]
		public float runSpeed = 3.5f;

		private CharacterController charaController;
		private GameObject FPSCamera;
		private Vector3 moveDir = Vector3.zero;

		// ★追加
		[Range(0.1f, 10f)]
		public float gravity = 9.8f;  // 重力の大きさ
		[Range(1f, 15f)]
		public float jumpPower = 10f;  // ジャンプ力


		void Start () {
			FPSCamera = GameObject.Find("FPSCamera");
			charaController = GetComponent<CharacterController> ();
		}

		void Update () {
			Move ();
		}

		void Move(){
			float moveH = Input.GetAxis ("Horizontal");
			float moveV = Input.GetAxis ("Vertical");
			Vector3 movement = new Vector3 (moveH, 0, moveV);

			if (movement.sqrMagnitude > 1) {
				movement.Normalize ();
			}
				
			Vector3 desiredMove = FPSCamera.transform.forward * movement.z + FPSCamera.transform.right * movement.x;
			moveDir.x = desiredMove.x * 5f;
			moveDir.z = desiredMove.z * 5f;

			if (Input.GetKey (KeyCode.LeftShift)) {
				charaController.Move (moveDir * Time.fixedDeltaTime * runSpeed);
			} else {
				charaController.Move (moveDir * Time.fixedDeltaTime * walkSpeed);
			}

			// ★追加
			moveDir.y -= gravity * Time.deltaTime;  // 重力の発生

			// ★追加
			if(charaController.isGrounded){ // この条件の意味を調べてみよう
				if(Input.GetKeyDown(KeyCode.Space)){
					moveDir.y = jumpPower; // ジャンプ
				}
			}
		}
	}
}