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Flavoredboi

Moving platform (2D UNITY)

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Hey I'm trying to make a moving platform in 2D unity engine using C#.

I actually learned this in a video but can't do it myself. :(

So that's what i did :

I wrote two codes:

1.Followpath.cs

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


public class FollowPath : MonoBehaviour
{
    public enum FollowType
    {
        MoveTowards,
        Lerp
    }
     
    public FollowType Type = FollowType.MoveTowards;
    public PathDefinition Path;
    public float Speed = 1;
    public float MaxDistanceToGoal = .1f;

    private IEnumerator<Transform> _currentPoint;

    public void Start()
    {
        if (Path == null)
        {
            Debug.LogError("Path cannot be null", gameObject);
            return;
        }
         
        _currentPoint = Path.GetPathEnumerator();
        _currentPoint.MoveNext();

        if (_currentPoint.Current  == null)
            return;
        transform.position = _currentPoint.Current.position;
    }
    
    public void update()
    {
        if (_currentPoint == null || _currentPoint.Current == null)
            return;

        if (Type == FollowType.MoveTowards)
            transform.position = Vector3.MoveTowards(transform.position, _currentPoint.Current.position, Time.deltaTime * Speed);

        else if (Type == FollowType.Lerp)
            transform.position = Vector3.Lerp(transform.position, _currentPoint.Current.position, Time.deltaTime * Speed);
        var distanceSquared = (transform.position - _currentPoint.Current.position).sqrMagnitude;
        if (distanceSquared < MaxDistanceToGoal * MaxDistanceToGoal)
            _currentPoint.MoveNext();
    }
}

2.PathDefiniton.cs

using System;
using System.Collections.Generic;
using UnityEngine;
using System.Collections;
public class PathDefinition : MonoBehaviour
{
    public Transform[] Points;
     
    public IEnumerator<Transform> GetPathEnumerator()
    {
        if (Points == null || Points.Length < 1)
            yield break;

        var direction = 1;
        var index = 0;
        while (true)
        {
            yield return Points[index];

            if (Points.Length == 1)
                continue;

            if (index <= 0)
                direction = 1;
            else if (index >= Points.Length - 1)
                direction = -1;

            index = index + direction;
        }
    }
	
    public void OnDrawGizmos()
    {
        if (Points == null || Points.Length < 2)
            return;

        for (var i = 1; i < Points.Length; i++)
        {
            Gizmos.DrawLine(Points[i - 1].position, Points[i].position);
        }
    }
}

and made a gameobject "platform path"  and added PathDefiniton.cs to it then made 3 new gameobjects "start" "mid" and "end" as spots in path and set them as 3 elements to "platform path" so I made another object( a sprite like a dirt to follow path) "Platform" and added "Followpath.cs" to it:

2zzit.jpg

h959u.jpg

gg0rv.jpg

Finally:

zmsxm.jpg

when i start the game, platform will move to "start" spot but doesn't follow "mid" and "end".

Can anyone help me please?

I'll change it to a guide if i fix it.

or if you have no idea, give me a new way to make a moving platform.

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3 hours ago, Flavoredboi said:

public void update()

 

Rename from update (all lowercase) to Update (first letter uppercase).  That should help your progress.

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1 hour ago, frob said:

 

Rename from update (all lowercase) to Update (first letter uppercase).  That should help your progress.

Wow!!

I thought Visual studio will alert me about upper/lower case issues.

Thanks alot!!! <3

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53 minutes ago, Flavoredboi said:

I thought Visual studio will alert me about upper/lower case issues.

C# is case sensitive and you can create functions with any legal name.  

Your code created a perfectly valid function so there was no need for an error.

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Please read this; in particular, please do not mark threads "solved" in this forum or in any way update the original post so as to render the subsequent discussion meaningless.

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