Wearied Error

Wearied Error comes Like:
BCE0026:'void’cannot be used in boolen context.

Here’s the code

var msg="Make your choice!"; 
var Background : Texture;
var RockG : Texture;
var Rock : Texture;
var PaperG : Texture;
var Paper : Texture;
var ScissorG : Texture;
var Scissor : Texture;
var Player : Texture;
var Computer : Texture;

function OnGUI() {
	GUI.DrawTexture(Rect(0,0,Screen.width,Screen.height), Background);
	
	if (GUI.DrawTexture(Rect(Screen.width/2 - Rock.width * 2,Screen.height/2 + Screen.height/10,Rock.width,Rock.height), Rock))
	{
		
	}
	
	GUI.DrawTexture(Rect(Screen.width/2 - Rock.width + Rock.width/2,Screen.height/2 + Screen.height/10,Rock.width,Rock.height), Paper);
	GUI.DrawTexture(Rect(Screen.width/2 + Rock.width,Screen.height/2 + Screen.height/10,Rock.width,Rock.height), Scissor);

On line 15 the error comes

Thanxx in advance

GUI.DrawTexture() returns nothing (void), so you can’t use it in a boolean context (an if statement). Remove the if from around that call, and use buttons or something else that can be clicked to check for user input.

GUI.DrawTexture