how do i make it on tap because i want this to work on the iphone

and it gives me a few errors like expression denotes a value where a method is expected here is the final code

using UnityEngine; using System.Collections;

public class accelerate : MonoBehaviour {

void OnGUI()

{ if(GUI.Button(new Rect(10, 10, 50, 50),"Accelerate")) { if ((groundtrigger.triggered == 1) (Input.GetButton ("Fire1 "))&&( speed <800)) + speed = Time.deltaTime * 240; else if ((groundtrigger.triggered == 0) (Input.GetButton ("Fire1 "))&&( speed <800)) + speed = Time.deltaTime * 240; } } }

Unity codes GUI.Button to work for touches, but without using the code for handling multiple touches I think that won't work. You can check for multi-touch with this method (There are probably other ways but this is easiest):

Rect buttonArea = new Rect(10,10,100,50); foreach ( Touch touch in Input.touches) { if (touch.phase == TouchPhase.Began && buttonArea.Contains(touch.position)) { //Do stuff } }

I copy pasted the code directly from your question, try changing the if statements to this:

if ((groundtrigger.triggered == 1) (Input.GetButton ("Fire1 "))&&( speed <800)) {speed += Time.deltaTime * 240;}

I have also edited my answer in reply to this error. You may also want to change the values of acceleration whether on the ground or not, since they're the same in your quesiton or maybe you left it like that intentionally, just making sure.

ok now it gives me more errors when i put it in it tells me more errors can you put it into your editor and tell me where im going wrong cause this is the final code i get here

using UnityEngine; using System.Collections;

public class speed : MonoBehaviour {

void OnGUI() {

if(GUI.Button(new Rect(10, 10, 100, 50),"Accelerate"))
{
    if ((groundtrigger.triggered == 1) (Input.GetButton ("Fire1 "))&&( speed <800)) {speed += Time.deltaTime * 240;}
    else if ((groundtrigger.triggered == 1) (Input.GetButton ("Fire1 "))&&( speed <800)) {speed += Time.deltaTime * 240;}
}


}

}

can i send you my project through email and have u set up the controls like left right accelerate and i can put you down as co developer needed a partner anyway