Detect if a scene has been seen in Tumult Hype, and adjust the UI accordingly.

detectVisitedScenes.js

// the buttons in your document should have the unique element id in this format: 
// buttonaB. This button would be the button corresponding to scene A, and would be placed shown on Scene B. 
// example document: http://tumult.com/support/examples/28995-detectivisitedScene.zip 

window.visitedscenes.push(hypeDocument.currentSceneName());

// If Scene A is in the list of scenes visited,
if (window.visitedscenes.indexOf("A") > -1) {

// Change the color of buttona + scenename to be red.	
	hypeDocument.getElementById('buttona' + hypeDocument.currentSceneName()).style.backgroundColor="red";		
}

// If Scene A is in the list of scenes visited,	
if (window.visitedscenes.indexOf("B") > -1) {

// Change the color of buttonb + scenename to be red.
	hypeDocument.getElementById('buttonb' + hypeDocument.currentSceneName()).style.backgroundColor="red";		
}

//console.log(visitedscenes);