For statements triggering "Expressions in statements must only be executed for their side-effects. "

Questions & Answers
1

I’m getting an “Expressions in statements must only be executed for their side-effects.” compile error.

I’m a bit confused as to why these For statements are triggering this error. This loop is supposed to basically generate a slightly non-uniform grid of objects from a prefab.

private var generate : int = 1;
var prefab : Transform;
	
function Start () 
{
	
}

function Update () 
{
	
	if(generate == 1)
	{
		for(var x=-1.5; x<35; x+0.5)
		{
			for(var z=-2; z<63; z+0.5)
			{
				var spreadEffect : int = Random.Range(1, 3);
				
				if(spreadEffect==1)
				{
        			Instantiate (prefab, Vector3(x, 12, z), Quaternion.identity);
        		}
			}
		}
		generate = 0;
	}
}
2

You are not incrementing in the last clause of the for statements. It should be:

   for(var x=-1.5; x<35; x+=0.5)

Note the addition of the ‘=’ sign.