group.get()

Category:Groups

Gets the sprite at index i of the group.

Every sprite that you add to a group is given an index number based on the order that it was inserted, starting with index number zero. Sprites in a group are usually acted upon identically using the Group functions provided, but some animations or games require different actions for different sprites in a group. Using a loop and group.get(i) allows you to act upon each sprite individually from a group.

Examples

// Number the sprites.
var group = createGroup();
for (var i = 0; i < 20; i++) {
  group.add(createSprite(randomNumber(0, 400), randomNumber(0, 400),randomNumber(10, 20),randomNumber(10, 20)));
}
fill("red");
function draw() {
  background("white");
  drawSprites();
  for (var i = 0; i < 20; i++) {
    var temp=group.get(i);
    text(i, temp.x, temp.y);
  }  
}

Go for the Gold

Find up to 3 gold coins hidden randomly. You have 8 guesses.

// Find up to 3 gold coins hidden randomly. You have 8 guesses.
var lose = createGroup();
var win = createGroup();
var winCount=0;
for (var i = 0; i < 4; i++) {
  for (var j = 0; j < 4; j++) {
    if (winCount<3 && randomNumber(1,16)<4) {
      winCount=winCount+1;
      win.add(createSprite(i*100+50, j*100+50, 50, 50));
    }
    else {
      lose.add(createSprite(i*100+50, j*100+50, 50, 50));
    }
  }
}
var attempt=0, hit=0;
function draw() {
  background("white");
  drawSprites();
  if (attempt<8 && hit < winCount) {
    for (var i = 0; i < winCount; i++) {
      if (mouseIsOver(win.get(i)) && mouseWentDown("leftButton")) {
        attempt=attempt+1;
        hit=hit+1;
        win.get(i).setAnimation("coin_gold_1");
      }
    }
    for (var j = 0; j < 16-winCount; j++) {
      if (mouseIsOver(lose.get(j)) && mouseWentDown("leftButton")) {
        attempt=attempt+1;
        lose.get(j).destroy();
      }
    }
  }
  else {
    textSize(50);
    text("HITS = "+hit, 100, 215);
  }
}

Syntax

group.get(i)

Parameters

NameTypeRequired?Description
i Number The index position of a sprite from the group.

Returns

The sprite at index position i.

Tips

  • Groups of sprites all have the same functions and you use the dot notation (combining the name of the group, followed by a dot, with the function name) to call the function for that group of sprites.
  • Any changes to the properties of a sprite will not be seen until after drawSprites() is called.

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