Rotating a shape 90° shouldn't be too complicated but...

Hi ThierryEMMANUEL I've made an updated Storyline file for you. This puts the code into a function and localises the rotationDegree variable to the object. You don't need to reference the object, as we can get this information from the "event" property, which is passed through the function "rotateShape".

This code runs on timeline start.

window.rotateShape = function(e)
{
	// storyline variable
	const player = GetPlayer();
	const rotation = player.GetVar('rotation');
	const duration = player.GetVar('duration');
	// get the target
	const target = e.target.closest('[data-model-id]');
	console.log("target",target);
	// get rotationDegree if defined (default zero)
	let rotationDegree = Number(target.dataset.rotationDegree) || 0;
	console.log("BEFORE :: rotationDegree",rotationDegree);
    // Increment rotation by 45 degrees
    rotationDegree += rotation;
    console.log("AFTER :: rotationDegree",rotationDegree);
    // assign rotationDegree to object dataset property
    target.dataset.rotationDegree = rotationDegree;
    // Use GSAP to animate the rotation
    gsap.to(target, { duration: duration, rotation: rotationDegree });
}

You then just call this function from the click trigger of each shape.

window.rotateShape(event);

Hi VicovandenEv121 . The beauty of this code is its small size. I thought I had solved the problem of preventing the rotation from starting from an intermediate position when the user clicks again before the animation is finished, by creating a variable (rotationDegree) stored in the window object, which allows it to persist between executions without resetting. Actually, chapGPT did it. Here is the modified code:
window.rotationDegree = (window.rotationDegree || 0) - 90;
let object1 = document.querySelector("[data-model-id='6nmK88deM2z']");
gsap.to(object1, { rotation: window.rotationDegree, duration: 1 });
It works for the first object! But since I want to target multiple objects, the objects share the same rotationDegree variable in their code and their first rotations are at first heretical. I guess it is normal. I'm still looking. (This is the last time I'll ask you if you don't have time. You've already earned your beer anyway.)