/** Internal function for helping to update the cursor graphic and world coordinates. */
protected void updateCursor() {
Pointer o = _pointers.get(0);
// actually position the flixel mouse cursor graphic
if (_cursor != null) {
_cursor.x = o.screenPosition.x;
_cursor.y = o.screenPosition.y;
}
// update the x, y, screenX, and screenY variables based on the default
// camera.
// This is basically a combination of getWorldPosition() and
// getScreenPosition()
FlxCamera camera = FlxG.camera;
screenX =
(int) ((o.screenPosition.x - camera.x) / (camera.getZoom() * camera._screenScaleFactorX));
screenY =
(int) ((o.screenPosition.y - camera.y) / (camera.getZoom() * camera._screenScaleFactorY));
x = screenX + camera.scroll.x;
y = screenY + camera.scroll.y;
}
/**
* Fetch the screen position of the specified pointer on any given camera.
*
* @param Pointer The pointer id.
* @param Camera If unspecified, first/main global camera is used instead.
* @param Point An existing point object to store the results (if you don't want a new one
* created).
* @return The pointer's location in screen space.
*/
public FlxPoint getScreenPosition(int Pointer, FlxCamera Camera, FlxPoint Point) {
if (Camera == null) Camera = FlxG.camera;
if (Point == null) Point = new FlxPoint();
if (Pointer >= _pointers.size) return Point;
Pointer o = _pointers.get(Pointer);
Point.x = (o.screenPosition.x - Camera.x) / (Camera.getZoom() * Camera._screenScaleFactorX);
Point.y = (o.screenPosition.y - Camera.y) / (Camera.getZoom() * Camera._screenScaleFactorY);
return Point;
}