Left and right enemy moving in 2D platformer

Good day!

I am working on a script for an enemy in a platformer game.I want it to move a specific distance left or right and then return to the origin and just to do the same thing.
please show me a way to script this thing.I already tried but can't figure out the conditions.(In my script I used 2 bool movingRight and movingLeft).

Thank you very much!

 

There's loads of ways of doing something like that. A simple way would be to have 2 variables that define the minimum X position of the enemy and the maximum X position. You could also have an integer that is -1 when moving left and +1 when moving right.

e.g.

Code (CSharp):

1. float fMinX = 50.0f;
2. float fMaxX = 250.0f;
3. int Direction = -1;
4.  
5. Update:
6.  
7. switch( Direction )
8. {
9.     case -1:
10.         // Moving Left
11.         if( fEnemyX > fMinX )
12.         {
13.             fEnemyX -= 1.0f;
14.         }
15.         else
16.         {
17.             // Hit left boundary, change direction
18.             Direction = 1;
19.         }
20.         break;
21.      
22.     case 1:
23.         // Moving Right
24.         if( fEnemyX < fMaxX )
25.         {
26.             fEnemyX += 1.0f;
27.         }
28.         else
29.         {
30.             // Hit right boundary, change direction
31.             Direction = -1;
32.         }
33.         break;
34. }
35.  
36. sprEnemy.transform.localPosition = new Vector3( fEnemyX , 0.0f , 0.0f );
37.  

 

Thank you very much sir!

You saved my day! I really appreciate your help.Here is my final code:

Code (CSharp):

1. // Use this for initialization
2.     void Start ()
3.     {
4.         initialPosition = transform.position;
5.         direction = -1;
6.         maxDist += transform.position.x;
7.         minDist -= transform.position.x;
8.     }
9.    
10.     // Update is called once per frame
11.     void Update ()
12.     {
13.         switch (direction)
14.         {
15.              case -1:
16.                 // Moving Left
17.                 if( transform.position.x > minDist)
18.                     {
19.                        GetComponent <Rigidbody2D>().velocity = new Vector2(-movingSpeed,GetComponent<Rigidbody2D>().velocity.y);
20.                     }
21.                 else
22.                     {
23.                        direction = 1;
24.                     }
25.                 break;
26.              case 1:
27.                   //Moving Right
28.                 if(transform.position.x < maxDist)
29.                     {
30.                         GetComponent <Rigidbody2D>().velocity = new Vector2(movingSpeed,GetComponent<Rigidbody2D>().velocity.y);
31.                     }
32.                 else
33.                     {
34.                         direction = -1;
35.                     }
36.             break;
37.         }
38.     }
39.  
40. }

Have a nice day!

 

No problem, glad you got it working ok