CODEWITHSUNDEEP
javalibgdx
Santiago Rosales
Santiago Rosales

Reputation: 79

Identify the cell that was clicked

currently I'm trying to create a Sudoku game based on images. What I'm trying to figure out now is what cell was clicked to send that signal to the logic of my game. This is how I've created the UI for the board:

private void initGrid(){
    String value = new String();
    for (int i = 0; i<9; i++){
        for (int j = 0; j<9; j++){
            value = MathUtils.random(1, 9)+"";
            this.grid[i][j] = new Image(atlas.findRegion(value));
            this.grid[i][j].setScale(0.5f);
            this.grid[i][j].setPosition(i * 64 + padX, GameConstants.screenHeight - (j * 64 + padY));
            this.grid[i][j].setOrigin(ImgHeight / 2, ImgWidth / 2);
            this.grid[i][j].setAlign(Align.center);
            this.grid[i][j].addListener(new ClickListener(){

                @Override
                public void clicked(InputEvent event, float x, float y){

                    System.out.println("Image clicked: "+x+" "+y);
                }
            });
            stage.addActor(this.grid[i][j]);
        }
    }
}

What I get instead is something from 0 to 128 on both axis on each cell, even though I'm drawing them at 0.5 scale. I'm not getting an absolute position. I would like to get something like i = 0-8, j = 0-8. I'm not drawing on a table because it has some scale animations and didn't work out.

Upvotes: 0

Views: 59

Answers (2)

dfour
dfour

Reputation: 1376

You can use the setName(String) method of the Image to store the image grid location

this.grid[i][j] = new Image(atlas.findRegion(value));
this.grid[i][j].setName(i+":"+j);

Then in the listener can output the image name with 

this.grid[i][j].addListener(new ClickListener(){
        @Override
        public void clicked(InputEvent event, float x, float y){
           System.out.println(event.getListenerActor().getName());
        }
    });

This should print out something like 0:0 to 8:8

Upvotes: 1

user10074928
user10074928

Reputation:

Well, yes - it won't return the position in the grid, because it doesn't know about the grid itself. If you're just interested in Image object, then you should be able to get it by casting source of event into Image.

Image source = (Image)event.getSource();

On the other hand, if you really need indexes - for example to replace it in grid, you will have to loop through grid and compare them.

Upvotes: 1

Related Questions