Unity: Switch between set of images after pressing button-CodePudding

On my UI I have an image which has to be updated as soon as I press a certain key (e.g. the heart image is changed to a coin image). In this case I just want to try to call the method by using

Input.GetKeyDown(KeyCode.DownArrow);

I don't want to press a button on the UI. Now I want to switch between to images but I don't know how I can reference between the two images. I saw solutions like these:

currentImage.sprite = newImage;

My sprites are not really images but I don't want to create images out of them. Do I have to do it or can I do it with the sprites? And what other solutions are there?

Kind regards

CodePudding user response：

I am not sure what you mean by your sprites are not images. But you should be able to assign a sprite to your UI image element.

Here is a sample

public Sprite my_sprite;
public Image img;

void Update() 
{     
  if(Input.GetKeyDown(KeyCode.DownArrow))   
  {           
    img.sprite=my_sprite;   
  }
}

CodePudding user response：

Try this

public Sprite heartSprite;    
public Sprite coinSprite;
public Image img;
void Update()
{
    bool isPressed = Input.GetKeyDown(KeyCode.DownArrow);
    img.sprite = isPressed ? coinSprite : heartSprite;
}