// spil API for GM:Studio
// commands:
// get_brandimage();
// get_brandlink();
// checkpaused();
// request_ad();

document.getElementsByTagName('head')[0].innerHTML += '<meta name="viewport" content="minimal-ui">';

function loadScript(url, callback)
{
    // Adding the script tag to the head as suggested before
    var head = document.getElementsByTagName('head')[0];
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = url;

    // Then bind the event to the callback function.
    // There are several events for cross browser compatibility.
    script.onreadystatechange = callback;
    script.onload = callback;

    // Fire the loading
    head.appendChild(script);
}

var brandimage = "";
var brandlink = "";
var apiloaded = false;

var spil_loaded= function() {
	apiloaded = true;

	GameAPI.loadAPI(function(API) {
		brand = API.Branding.getLogo();
	});
};

// The function in the second argument runs AFTER the script in the first argument finishes loading
loadScript("http://cdn.gameplayer.io/api/js/game.js", spil_loaded);

// returns a comma-separated string, first value is an image link, second is the url to be opened when image is clicked
function get_brand() {
	if(apiloaded == false) {
		return ""; // api not yet loaded
	}
	brandimage = brand['image'];
	brandlink = brand['link'];
	brand = brandimage + "," + brandlink;
	return brand;
}


// returns a comma-separated string, contains key names you can use to retrieve the available button options. 
function button_listlinks() {
	if(apiloaded == false){
		return ""; // api not yet loaded
	}	
	links = GameAPI.Branding.listLinks();
	//alert(links);
	links = links.join();	
	return links;
}

  
// linknames can be acquired by calling this function: spilAPI.Branding.listLinks();
// the most common one to use is 'more_games'
function button_getlink(linkname) {
	if(apiloaded == false){
		return ""; // api not yet loaded
	}	
	button = GameAPI.Branding.getLink(linkname);
	buttonimage = button['image'];
	buttonlink = button['url'];
	button = buttonimage + "," + buttonlink;
	return button;
}


// after calling this function, GM should keep calling checkpaused() in case an ad does pop up
function request_ad() {
	if(apiloaded == false){
		return 0; // api not yet loaded
	}
	GameAPI.GameBreak.request(ad_loaded, ad_done);
	//alert("now requesting an ad!");
	return 1;
};

// callbacks to pause or load the game
var ad_loaded= function() {
	pausegame = 1;
	//alert('ad loaded! pause the game');
}
var ad_done= function() {
	pausegame = 0;
	//alert('ad done! unpause the game');

}

// GM will keep calling this function when the game is expecting to be paused or unpaused at any moment
function checkpaused() {
	return pausegame;
}