C# sprite Movement

using UnityEngine;
using System.Collections;

public class Main : MonoBehaviour {

        public Sprite [] Ninjawalk;
        public float Moveframeindex = 1.0f;
        public float CharPositionXInBlocks;
        public float CharPositionYInBlocks;

        private int spriteindex;
        private Vector3 CharPosition;
        private bool MovesetD = true;
        private bool MovesetA = true;
        private bool MovesetW = true;
        private bool MovesetS = true;
        private int buttonlock = 0;

        // Use this for initialization
        void Start () {


        }

        // Update is called once per frame

        void Update () {

        //TODO Paste to notes ( Handy script to determin and designate screen size )
        //float mousePosInBlocks = Input.mousePosition.x / Screen.width;
        //print (mousePosInBlocks);

            //Sprite managment
            spriteindex = (int) Moveframeindex -1;
            CharPositionXInBlocks = this.transform.position.x ;
            CharPositionYInBlocks = this.transform.position.y ;

            //Movement controls
            //TODO Move in all directions AND jump and also make idle depending on last facing direction

        // IDLE

            //if (buttonlock  == 0) { //TODO if buttonlock equals idle right and idle left as well as idle up and down
                //Moveframeindex = 1f;
            //  this.GetComponent   <SpriteRenderer>().sprite = Ninjawalk [spriteindex];
            //}

            if (Input.GetKeyUp(KeyCode.D)){  //---------------------------D
            MovesetD = true;
            buttonlock  = 0;
            }
            if (Input.GetKey(KeyCode.D)) {
                if (buttonlock  == 0) {
                    buttonlock = 1;
                } else {
                    if (buttonlock == 1) {
                    if (MovesetD == true) {
                        Moveframeindex = 7f;
                        MovesetD = false;
                    }
                    Moveright();
                    }
                }
            }

            if (Input.GetKeyUp(KeyCode.A)){  //---------------------------A
                MovesetA = true;
                buttonlock  = 0;
            }
            if (Input.GetKey(KeyCode.A)) {
                if (buttonlock  == 0) {
                    buttonlock = 2;
                } else {
                    if (buttonlock == 2) {
                        if (MovesetA == true) {
                            Moveframeindex = 11f;
                            MovesetA = false;
                        }
                        Moveleft();
                    }
                }
            }

            if (Input.GetKeyUp(KeyCode.W)){  //---------------------------W
                MovesetW = true;
                buttonlock  = 0;
            }
            if (Input.GetKey(KeyCode.W)) {
                if (buttonlock  == 0) {
                    buttonlock = 3;
                } else {
                    if (buttonlock == 3) {
                        if (MovesetW == true) {
                            Moveframeindex = 15f;
                            MovesetW = false;
                        }
                        Moveup();
                    }
                }
            }
            if (Input.GetKeyUp(KeyCode.S)){  //---------------------------S
                MovesetS = true;
                buttonlock  = 0;
            }
            if (Input.GetKey(KeyCode.S)) {
                if (buttonlock  == 0) {
                    buttonlock = 4;
                } else {
                    if (buttonlock == 4) {
                        if (MovesetS == true) {
                            Moveframeindex = 19f;
                            MovesetS = false;
                        }
                        Movedown();
                    }
                }
            }
        }

        void Moveright () {

            Moveframeindex += 0.12f;
            if (Ninjawalk [spriteindex]) {
            this.GetComponent   <SpriteRenderer>().sprite = Ninjawalk [spriteindex];
            CharPositionXInBlocks += 0.05f;
            CharPosition = new Vector3 (CharPositionXInBlocks, this.transform.position.y, 0f);
            CharPosition.x = Mathf.Clamp(CharPosition.x, -3.60f, 3.65f);
            this.transform.position = CharPosition;
            }
            if (Moveframeindex >= 10.9f) {
            Moveframeindex = 7f;
            }
        }

        void Moveleft () {
            Moveframeindex += 0.12f;
            if (Ninjawalk [spriteindex]) {
            this.GetComponent   <SpriteRenderer>().sprite = Ninjawalk [spriteindex];
            CharPositionXInBlocks -= 0.05f;
            CharPosition = new Vector3 (CharPositionXInBlocks, this.transform.position.y, 0f);
            CharPosition.x = Mathf.Clamp(CharPosition.x, -3.60f, 3.65f);
            this.transform.position = CharPosition;
            }
            if (Moveframeindex >= 14.9f) {
            Moveframeindex = 12f;
            }
        }

        void Moveup () {
            Moveframeindex += 0.12f;
            if (Ninjawalk [spriteindex]) {
            this.GetComponent   <SpriteRenderer>().sprite = Ninjawalk [spriteindex];
            CharPositionYInBlocks += 0.05f;
            CharPosition = new Vector3 (this.transform.position.x, CharPositionYInBlocks, 0f);
            CharPosition.y = Mathf.Clamp(CharPosition.y, -2.60f, 2.6f);
            this.transform.position = CharPosition;
            }
            if (Moveframeindex >= 18.9f) {
            Moveframeindex = 15f;
            }
        }

        void Movedown () {
            Moveframeindex += 0.12f;
            if (Ninjawalk [spriteindex]) {
            this.GetComponent   <SpriteRenderer>().sprite = Ninjawalk [spriteindex];
            CharPositionYInBlocks -= 0.05f;
            CharPosition = new Vector3 (this.transform.position.x, CharPositionYInBlocks, 0f);
            CharPosition.y = Mathf.Clamp(CharPosition.y, -2.6f, 2.6f);
            this.transform.position = CharPosition;
            }
            if (Moveframeindex >= 22.9f) {
            Moveframeindex = 19f;
            }
        }
}