Character Controller for unity

gistfile1.txt

using UnityEngine;
using System.Collections;

public class ControllerScript : MonoBehaviour {

	CharacterController controller;
	public float speed = 5.0f;
	public float jumpSpeed = 8.0f;
	public float pushPower = 3.0f;



	bool airJumpReleased = false;
	bool hasDoubleJumped = false;

	Vector3 movement = Vector3.zero;

	// Use this for initialization
	void Start () {
		controller = GetComponent<CharacterController> ();
	}
	
	// Update is called once per frame
	void Update () {
		movement.x = Input.GetAxis ("Horizontal") * speed;

		if(controller.isGrounded == false) {
			movement.y += Physics.gravity.y * Time.deltaTime;
		}

		if (Input.GetButton ("Jump") && (controller.isGrounded == true || (airJumpReleased == true && hasDoubleJumped == false))) {
			movement.y = jumpSpeed;
			hasDoubleJumped = airJumpReleased;
		}

		if (controller.isGrounded == false && Input.GetButtonUp ("Jump")) {
			airJumpReleased = true;
		}

		
		if (controller.isGrounded && (airJumpReleased || hasDoubleJumped)) {
			airJumpReleased = hasDoubleJumped = false;
		}


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

	void OnControllerColliderHit (ControllerColliderHit hit) {
		Rigidbody body = hit.collider.attachedRigidbody;

		if(body == null || body.isKinematic) {
			return;
		}

		if (hit.moveDirection.y < -0.3f) {
			return;
		}

		Vector3 pushdir = new Vector3 (hit.moveDirection.x, 0f, 0f);
		body.velocity = pushdir * pushPower;
	}
}