PlayerMovement - Survival Series Episode 1

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

	public class PlayerMovement : MonoBehaviour
	{
	public CharacterController controller;

	public float speed = 12f;
	public float gravity = -9.81f * 2;
	public float jumpHeight = 3f;

	public Transform groundCheck;
	public float groundDistance = 0.4f;
	public LayerMask groundMask;

	Vector3 velocity;

	bool isGrounded;

	// Update is called once per frame
	void Update()
	{
	//checking if we hit the ground to reset our falling velocity, otherwise we will fall faster the next time
	isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);

	if (isGrounded && velocity.y < 0)
	{
	velocity.y = -2f;
	}

	float x = Input.GetAxis("Horizontal");
	float z = Input.GetAxis("Vertical");

	//right is the red Axis, foward is the blue axis
	Vector3 move = transform.right * x + transform.forward * z;

	controller.Move(move * speed * Time.deltaTime);

	//check if the player is on the ground so he can jump
	if (Input.GetButtonDown("Jump") && isGrounded)
	{
	//the equation for jumping
	velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
	}

	velocity.y += gravity * Time.deltaTime;

	controller.Move(velocity * Time.deltaTime);
	}
	}

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