CODEWITHSUNDEEP
inputunity-game-engine
Abaseen Khan
Abaseen Khan

Reputation: 23

Cannot implicitly convert type `bool' to `float'

using UnityEngine;
using System.Collections;

public class RightMovement : MonoBehaviour {

    public float maxSpeed = 10f;
    bool facingRight = true;

    void Start() {}

    void FixedUpdate() {

        float move = (Input.GetAxis("Horizontal") > 0); 
        rigidbody2D.velocity = new Vector2 (move * maxSpeed, rigidbody2D.velocity.y);
    }
}

This is the full error I keep getting:

Assets/Scripts/RightMovement.cs(14,23): error CS0029: Cannot implicitly convert type bool' tofloat'

I want to use Input.GetAxis("Horizontal") to move my sprite character, but I only want him to move right.

Upvotes: 1

Views: 7305

Answers (1)

paxdiablo
paxdiablo

Reputation: 881353

Input.GetAxis("Horizontal") > 0 is a Boolean (true/false) value which will be true if the return value from GetAxis is greater than zero, or false otherwise. That's why it's complaining about trying to shoehorn a Boolean into a float variable.

It sounds like you want to force it to be non-negative only, in which case there are two likely possibilities.

The first is to ensure that negative values are translated to zero and that would involve something like:

float move = Input.GetAxis("Horizontal");
if (move < 0) move = 0;

or, if you're the sort that prefers one-liners:

float move = Math.Max(0, Input.GetAxis("Horizontal"));

The second would be to translate negative to the equivalent positive, something like:

float move = Input.GetAxis("Horizontal");
if (move < 0) move = -move;

or, again, a one-liner:

float move = Math.Abs(Input.GetAxis("Horizontal"));

I suspect the former is probably what you're after but you should think about what you want negative values turned in to, and adjust to that.

Upvotes: 2

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