koobas.hobune.stream
GUI button image next
can anyone help me, how to create a button and a box and it compose of image and when u press the next button it loads another button.. please help me i want it badly. thanks for your cooperation and more power!
Here's the basic idea.
To use this you will have to populate the array of images in the Inspector.
This code draws a texture as a label and then draws a button.
If the button is clicked, the offset into the array of images is incremented.
If it hits the end of the list, it's reset to zero.
This code will cause a bunch of errors if you don't initialize the array of textures.
/* initialize the array of images by using the Inspector.
var imageArray : Texture2D []; var currentTex : int = 0;
var texRect : Rect = Rect(200, 200, 100, 100); var buttRect : Rect = Rect(200, 300, 100, 40);
function OnGUI () { GUI.Label(texRect, imageArray[currentTex]);
if ( GUI.Button(buttRect, "Next") ) {
nextImage();
}
}
function nextImage () : void { currentTex ++;
if ( currentTex >= imageArray.length ) {
currentTex = 0;
}
}
sir, im a beginner in here in unity can u please guide me some no error code just a simple one?.. thanks sir! more power!
The best way to learn is to figure out how to fix the errors yourself.
$$anonymous$$y answer is just meant to be a starting point.
Good luck!
(note that I explain that the array must be initialized in the Inspector 3 times in the first 7 lines of my answer)
sir jahroy its working but its no previous button can u $$anonymous$$ch me how to do it with this code?
simple by dividing from the Array "currentTex --;" with an other button.
sir nikspace can u guide me sir how to do that can u please have a sample code?
/* initialize the array of images by using the Inspector.
var imageArray : Texture2D [];
var currentTex : int = 0;
var texRect : Rect = Rect(200, 200, 100, 100);
var buttnextRect : Rect = Rect(200, 300, 100, 40);
var buttprevRect : Rect = Rect(200, 400, 100, 40);
function OnGUI ()
{
GUI.Label(texRect, imageArray[currentTex]);
if ( GUI.Button(buttnextRect, "Next") ) {
nextImage();
}
if ( GUI.Button(buttprevRect, "Previous") ) {
previousImage();
}
}
function nextImage () : void
{
currentTex ++;
if ( currentTex >= imageArray.length ) {
currentTex = 0;
}
}
function previousImage () : void
{
currentTex --;
if ( currentTex == 0 ) {
currentTex = imageArray.length;
}
}
You actually want it to be:
if ( currentTex < 0 ) {
currentTex = imageArray.length - 1;
}
Arrays indices start at zero. Zero is a valid offset into the array. It represents the first element.
imageArray[imageArray.length], however, will throw an exception.
If you have an array with 8 elements, the valid indices are 0-7.
If you try to access element 8, you will get an array index out of range exception.
This is why you would write a for loop that accesses every element of the array like this:
for ( var i = 0; i < imageArray.length; i ++ ) {
print(imageArray[i].name);
}
This loop starts a variable named i at zero and executes over and over until i is no longer less than the length of the array. If there are 8 elements in the array, the last time the loop will execute is when i is equal to 7. Once it is equal to 8, the for loop no longer executes, because its middle expression no longer evaluates to true.
Note that the value of i increses every time because of the third expression of the for loop, which says: i ++
All of this stuff can be read in the documentation, online, in books, etc....
