Fail to change multiple sprite mecanim state using C# scripts

Question

Above is the attachment of my mecanim state, hierarchy and folder in Animator.

The problem I'm facing now is fail to change multiple sprite mecanim state using C# script. When I move my sprite, I can successfully change it from idle to backwalk state, however it limit my changes solely to backwalk state but not all other states. I want to make it like when I press right arrow key it change to rightwalk state, while press left arrow key to change it to leftwalk state and so on. Unfortunately the if else statement that I declare is not working making my changing movement only stick to one state. I wonder what mistake I made, and how I can fix my code?

I'm a newbie to Unity and not familiar with C#. I just learn it from the official Unity tutorials series. I been searching for many related question regard of the problem but still I can't figure out the solution. This is the first question I ask at Game Stack Exchange, sorry if I violate any rules and please guide me through it. Appreciate anyone help sincerely.

Here I attach my code:

using UnityEngine;
using System.Collections;

public class CharacterMove : MonoBehaviour
{
    public float MoveSpeed = 1;
    float aspectspeedx = Screen.width / 1366;
    float aspectspeedy = Screen.height / 768;

// Use this for initialization
void Start()
{
    GameObject anim = GameObject.Find("taoist");
    anim.GetComponent<Animator>();
}

// Update is called once per frame
void Update()
{
    float MoveSpeed = 1f;
    // change the string to your parameter     

    string characterfrontwalk = "taoist_front_walk";
    string characterbackwalk = "taoist_back_walk";
    string characterleftwalk = "taoist_left_walk";
    string characterrightwalk = "taoist_right_walk";
    /* if you want corner walk 
    string characterrightfrontwalk = "taoist_right_front_walk";
    string characterrightbackwalk = "taoist_right_back_walk";
    string characterleftfrontwalk = "taoist_left_front_walk";
    string characterleftbackwalk = "taoist_left_back_walk";
    // to use this corner setting , you must initialize yourself 

    */
    GameObject character = GameObject.Find("taoist");
    GameObject theanim = GameObject.Find("taoist");
    theanim.GetComponent<Animator>();
    theanim.GetComponent<Animator>().SetBool(characterfrontwalk, true);
    theanim.GetComponent<Animator>().SetBool(characterbackwalk, false);
    theanim.GetComponent<Animator>().SetBool(characterleftwalk, false);
    theanim.GetComponent<Animator>().SetBool(characterrightwalk, false);
    character.transform.localPosition = new Vector3(character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
    character.transform.localPosition = new Vector3(character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

    if (!(Input.GetKey("up") && Input.GetKey("right")) && !(Input.GetKey("up") && Input.GetKey("left")) && !(Input.GetKey("down") && Input.GetKey("right")) && !(Input.GetKey("down") && Input.GetKey("left")))
    {
        if (Input.GetKey("up"))
        {
            theanim.GetComponent<Animator>().SetBool(characterfrontwalk, true);
            theanim.GetComponent<Animator>().SetBool(characterbackwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterleftwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterrightwalk, false);

            character.transform.localPosition = new Vector3(character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
        }

        if (Input.GetKey("down"))
        {
            theanim.GetComponent<Animator>().SetBool(characterfrontwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterbackwalk, true);
            theanim.GetComponent<Animator>().SetBool(characterleftwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterrightwalk, false);

            character.transform.localPosition = new Vector3(character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
        }

        if (Input.GetKey("left"))
        {
            theanim.GetComponent<Animator>().SetBool(characterfrontwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterbackwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterleftwalk, true);
            theanim.GetComponent<Animator>().SetBool(characterrightwalk, false);

            character.transform.localPosition = new Vector3(character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);
        }

        if (Input.GetKey("right"))
        {
            theanim.GetComponent<Animator>().SetBool(characterfrontwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterbackwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterleftwalk, false);
            theanim.GetComponent<Animator>().SetBool(characterrightwalk, true);

            character.transform.localPosition = new Vector3(character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);
        }

    }

}

    /* 

    // THIS CODE IS FOR CORNER MOVE , UN-MODIFIED , because im too tired to modify it sorry , you need to think yourself ;) 

    if( Input.GetKey("down") && Input.GetKey("left")){

        theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", true);
        theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
        theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
        character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
        character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

    }


    if( Input.GetKey("up") && Input.GetKey("right")){

        theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", true);
        theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
        character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
        character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

    }
    if( Input.GetKey("down") && Input.GetKey("right")){

        theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
        theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", true);
        theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
        theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
        character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
        character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

    } 
    // Un-MODIFIED corner setting , initialize yourself 
        */



}

public class LastDirection
{
    public string thelastdirection;
}

user6668201 · Accepted Answer · 2016-11-28 12:36:46Z

Instead of editing my last answer , i now really understand your problem :) , your first statement is look like this ( and its wrong ) :

As you see , your statement cannot go to other direction because they don't have the way , and the only way to go to other statement is through idle .

Then , how to fix it ? its simple , you must create their way to other direction so they don't need to go idle first to go "there" ( the other direction ) :

First , sorry for bad draw because i used paint ;) .

What i try to mean in the picture is , that each of your statement must connect to all other statement with its own condition , and not only connect to idle state , i know it is a long job and can take an hour but you must do it if you want .

Well , goodluck in your project :) , i can sure you will meet other problem that i have too here and you can ask me how-to-fix it ;) , and i can help your project if you want :) .

EDIT :

Yesterday you upload the picture of the statement like this :

But honestly , its not what called " connect each statement to all statement " , but what i was trying to mean is the statement must connect like this :

Comments are not for extended discussion; this conversation has been moved to chat. — Jesse Dorsey♦, Nov 28 '16 at 16:41

user6668201 · Accepted Answer · 2016-11-28 16:08:01Z

Instead of editing my last 2 answer ,i will just create new :p .

I fixed your character move animation .

It used new script , and new ability is added :
- Character Moving script without vertical and horizontal

Preview :

https://www.youtube.com/watch?v=b3T7xROtJ3A&feature=youtu.be

The animation play well except the animation it-self i think , you need to make the animation become better ;) .

How - To - Import :

Download the file - > https://goo.gl/3Dt0HQ , if the link dead tell me
If you don't want to import inside your project , create new project as test-project so you can assure it won't destroy your current project
Open scene at asset , the scene is named "sceneone"

4. Try to play it and learn the different with your current script :)

In case the scene and script not imported :

Create empty scene
Create two empty object , one called " taoistmoverobject " and " taoist "
Put taoist object inside taoistmoverobject scene
Find the animator and the script then tag it as component at " taoistmoverobject "
( Optional ) Put camera inside " taoistmoverobject " if you want to make camera follow when character moving

That all ;) , don't forget to learn from it :)

This should fix your problem :) , if you have any problem just ask me ;) , or if this doesn't work i will try another way — user6668201, Nov 28 '16 at 16:09
if it work , mark it as solve , if doesn't work , don't mark it and tell if its not work ;) , im open for question at facebook either email — user6668201, Nov 28 '16 at 16:12
Well ... im sleepy though , i will take a sleep now , i go back about .... 15 hour later . Any question just email me . — user6668201, Nov 28 '16 at 16:13

user6668201 · Accepted Answer · 2016-11-27 16:02:47Z

I know what problem was going on because i had the trouble with it too , the problem is at both side , the scripting and animator .

To make it instantly change like from left instantly to right , you must connect / put transition between all animation with it own condition .

Not just like from idle -> right , but also right -> left , right -> down , right -> up and ect .

Never use vertical and horizontal method , its not work the best , just detect which button the user hold and do the movement .

The preview is look like this :

https://www.youtube.com/embed/rivOHgxp2Cw
or
https://www.youtube.com/watch?v=rivOHgxp2Cw

and this is the script i used for your example ;) learn how the script work and watch the preview video .

using UnityEngine;
using System.Collections;

public class CharacterMove : MonoBehaviour {
	public float MoveSpeed = 1;
	float aspectspeedx = Screen.width / 1366;
	float aspectspeedy = Screen.height / 768;

	// Use this for initialization
	void Start () {
		GameObject anim = GameObject.Find("Character");
		anim.GetComponent<Animator> ();
	}
		
	// Update is called once per frame
	void Update () {
		LastDirection lastdirectionvar = new LastDirection ();
		GameObject character = GameObject.Find("Character");
		GameObject theanim = GameObject.Find("Character");
		theanim.GetComponent<Animator> ();
		/*
		 
		 Change one of them to true
		 
		 	theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			*/
		/* if (!(Input.GetKey ("up") || Input.GetKey ("down") || Input.GetKey ("left") || Input.GetKey ("right"))) {
			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			// if (lastdirectionvar.thelastdirection == "down") {
				theanim.GetComponent<Animator> ().SetBool ("NotMoving", true);

			// }
		} */
		if( Input.GetKey("up") && Input.GetKey("left")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", true);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

			}

		if( Input.GetKey("down") && Input.GetKey("left")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", true);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

		}


		if( Input.GetKey("up") && Input.GetKey("right")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", true);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

		}
		if( Input.GetKey("down") && Input.GetKey("right")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", true);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

		}

		if ( !(Input.GetKey("up") && Input.GetKey("right")) && !(Input.GetKey("up") && Input.GetKey("left")) && !(Input.GetKey("down") && Input.GetKey("right")) && !(Input.GetKey("down") && Input.GetKey("left")) ) {
			if (Input.GetKey ("up")) {
				theanim.GetComponent<Animator> ().SetBool ("MoveUp", true);
				theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
				theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
			}
			if (Input.GetKey ("down")) {
				theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveDown", true);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
				theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
			}
			if (Input.GetKey ("left")) {
				theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeft", true);
				theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
				theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);
			}
			if (Input.GetKey ("right")) {
				theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRight", true);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
				theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
				theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);
			}

		}

		/* if (Input.GetAxisRaw ("Horizontal") > 0.5f || Input.GetAxisRaw("Horizontal") < -0.5f) {
			character.transform.Translate (new Vector3 (Input.GetAxisRaw ("Horizontal") * MoveSpeed * Time.deltaTime, 0f, 0f));
		}
		if (Input.GetAxisRaw ("Vertical") > 0.5f || Input.GetAxisRaw ("Vertical") < -0.5f ) {
			character.transform.Translate (new Vector3 (0f,Input.GetAxisRaw ("Vertical") * MoveSpeed * Time.deltaTime,0f));
		} 

		anim.GetComponent<Animator> ().SetFloat ("MoveX", Input.GetAxisRaw ("Horizontal"));
		anim.GetComponent<Animator> ().SetFloat ("MoveY", Input.GetAxisRaw ("Vertical")); */

	
	}
}

public class LastDirection {
		public string thelastdirection;
}

This is code for your character :

void Update () {
        float MoveSpeed = 1f;      
              
          // change it to your object name that work as character
          
           string charactername = "taoist";
       
        // change the string to your parameter     
                   
        string characterfrontwalk = "taoist_front_walk";
        string characterbackwalk = "taoist_back_walk";
        string characterleftwalk = "taoist_left_walk";
        string characterrightwalk = "taoist_right_walk";
        /* if you want corner walk 
        string characterrightfrontwalk = "taoist_right_front_walk";
        string characterrightbackwalk = "taoist_right_back_walk";
        string characterleftfrontwalk = "taoist_left_front_walk";
        string characterleftbackwalk = "taoist_left_back_walk";
        // to use this corner setting , you must initialize yourself 
        
        */
		GameObject character = GameObject.Find(charactername);
		GameObject theanim = GameObject.Find(charactername);
		theanim.GetComponent<Animator> ();
			theanim.GetComponent<Animator> ().SetBool (characterfrontwalk, true);
			theanim.GetComponent<Animator> ().SetBool (characterbackwalk, false);
			theanim.GetComponent<Animator> ().SetBool (characterleftwalk, false);
			theanim.GetComponent<Animator> ().SetBool (characterrightwalk, false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

			}

		/* 
        
        // THIS CODE IS FOR CORNER MOVE , UN-MODIFIED , because im too tired to modify it sorry , you need to think yourself ;) 
        
        if( Input.GetKey("down") && Input.GetKey("left")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", true);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

		}


		if( Input.GetKey("up") && Input.GetKey("right")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", true);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

		}
		if( Input.GetKey("down") && Input.GetKey("right")){

			theanim.GetComponent<Animator> ().SetBool ("MoveUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeft", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRight", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftUp", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveLeftDown", false);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightDown", true);
			theanim.GetComponent<Animator> ().SetBool ("MoveRightUp", false);
			theanim.GetComponent<Animator> ().SetBool ("NotMoving", false);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
			character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);

		} 
        // Un-MODIFIED corner setting , initialize yourself 
            */
		if ( !(Input.GetKey("up") && Input.GetKey("right")) && !(Input.GetKey("up") && Input.GetKey("left")) && !(Input.GetKey("down") && Input.GetKey("right")) && !(Input.GetKey("down") && Input.GetKey("left")) ) {
			if (Input.GetKey ("up")) {
				theanim.GetComponent<Animator> ().SetBool (characterfrontwalk, true);
				theanim.GetComponent<Animator> ().SetBool (characterbackwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterleftwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterrightwalk, false);
				
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y + 0.05f * MoveSpeed, character.transform.localPosition.z);
			} 
			if (Input.GetKey ("down")) {
				theanim.GetComponent<Animator> ().SetBool (characterfrontwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterbackwalk, true);
				theanim.GetComponent<Animator> ().SetBool (characterleftwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterrightwalk, false);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x, character.transform.localPosition.y - 0.05f * MoveSpeed, character.transform.localPosition.z);
			}
			if (Input.GetKey ("left")) {
				theanim.GetComponent<Animator> ().SetBool (characterfrontwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterbackwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterleftwalk, true);
				theanim.GetComponent<Animator> ().SetBool (characterrightwalk, false);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x - 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);
			}
			if (Input.GetKey ("right")) {
				theanim.GetComponent<Animator> ().SetBool (characterfrontwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterbackwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterleftwalk, false);
				theanim.GetComponent<Animator> ().SetBool (characterrightwalk, true);
				character.transform.localPosition = new Vector3 (character.transform.localPosition.x + 0.05f * MoveSpeed, character.transform.localPosition.y, character.transform.localPosition.z);
			}

		}


	
	}

Seriously thanks so much for your effort and you even made a Youtube video to help me out. Very touching. I'm still trying my best to understand the code. I upload a picture in the question above as I can't upload it at this comment. Is this the correct set up of mecanim state in animator? I want to move my sprite in four direction: up, down, left, right. — Philip Chow, Nov 27 '16 at 14:54
its right but is the conditions right ? go click the transition and look at inspector — user6668201, Nov 27 '16 at 15:04
@ user6668201 For the condition, I set it as character_front_walk(state) > character_back_walk(state) using condition: backwalk = true ::::::::::::::::::::::::: character_back_walk(state) > character_front_walk(state) using condition: frontwalk = true — Philip Chow, Nov 27 '16 at 15:14
you need more condition , example like character_front_walk > character_back_walk , use backwalk = true and frontwalk = false not only backwalk = true — user6668201, Nov 27 '16 at 15:20
can you tell me all the state and the object name that used as "character" ? i can create the script for you — user6668201, Nov 27 '16 at 15:23

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