In Cocos2d (Android, JAVA), I use CCRotateBy to rotate one CCNode with several tiles in it as children. I want to use the center of the center tile as a point of rotation, so I thought I'd use Anchorpoint.
However, it doesn't matter what value I give to the Anchorpoint, tiles keep rotating around the bottom left of my screen. How come?
(the tiles are CCNodes, collected in two lists, tilesSelected and secondaryTilesSelected)
// I create one node which holds all the tiles I want to rotate
CCNode tilesToRotate = CCNode.node();
tilesToRotate.addChild(tilesSelected.get(0), 0, 99);
// then, I add the 4 tiles around the previous, center tile
for (int i=0; i < secondaryTilesSelected.size(); i++){
tilesToRotate.addChild(secondaryTilesSelected.get(i), 0, 99);
}
// So, if I change 700,700 hereunder to different values, it doesn't change the centerpoint for Rotation. I guess I don't get it...
addChild(tilesToRotate);
tilesToRotate.setAnchorPoint(CGPoint.make(700,700));
CCAction r90 = CCRotateBy.action(1f, 90f);
tilesToRotate.runAction(r90);
anchorPoint is a factor in the range 0,0 (lower left corner) to 1,1 (upper right corner of content)
You are setting the anchor far too far away from the node at 700,700