GUI Button and for loop not working

Question

Hey, everyone, I'm trying to make a rts type game where the player can go to the sidebar and click on the building that he wants to make his active one. If he selects this, and clicks on a collider, he will make the building he selected. However, when I use a for loop to make the buttons(the buildings are in an array), there is nothing. How to do this?

Here is my code. Thanks in advance!! :)

var buildingTypes : Building[]; var buildIndex : int = 0;

function Update () 
{
    if(Input.GetMouseButtonDown(0))
    {
        Build();
    }
}
function Build()
{
        var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
        var hit : RaycastHit;
        if (Physics.Raycast (ray, hit, 100)) 
        {
            Debug.DrawLine (ray.origin, hit.point);
            Instantiate(buildingTypes[buildIndex],hit.point,Quaternion.identity);
        }
}
function OnGUI()
{
    GUI.Box(Rect(10, 10, 220, 200), "");
    GUI.Box(Rect(10, 10, 220, 30), "");
    for(var i = 0; i > buildingTypes.length; ++i)
    {
        var btnRect : Rect = Rect(10, i*10+40, 200, 30);
        if(GUI.Button(btnRect, buildingTypes[i].ToString()))
        {
            buildingIndex = i;
        }
    }
}

Answer 1

Best Answer

Answer by Bunny83 · Mar 12, 2011 at 12:03 AM

:) a little typing mistake. Your for loop never runs because your loop condition is always false.

Change this

for(var i = 0; i > buildingTypes.length; ++i)

into this

for(var i = 0; i < buildingTypes.length; ++i)

An alternative would be, what Dave suggested, to use a Toolbar(horizontal) or a SelectionGrid(vertical or grid). I think you would need to setup a seperate string array for Toolbar or Selectiongrid, so I guess your current solution would be the best (since you have it already).

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Answer 2

Best Answer

Answer by DaveA · Mar 11, 2011 at 10:17 PM

Take a look at GUI(Layout) Toolbar and SelectionGrid which does most of this for you

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GUI Button and for loop not working

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